MAX4000_V01 [MAXIM]
2.5GHz 45dB RF-Detecting Controllers;
| 型号： | MAX4000_V01 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 2.5GHz 45dB RF-Detecting Controllers |
| 文件： | 总19页 (文件大小：692K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2288; Rev 2; 12/07
2.5GHz 45dB RF-Detecting Controllers
General Description
Features
♦ Complete RF-Detecting PA Controllers
The MAX4000/MAX4001/MAX4002 low-cost, low-power
logarithmic amplifiers are designed to control RF power
amplifiers (PA) operating in the 0.1GHz to 2.5GHz fre-
quency range. A typical dynamic range of 45dB makes
this family of log amps useful in a variety of wireless appli-
cations including cellular handset PA control, transmitter
power measurement, and RSSI for terminal devices.
Logarithmic amplifiers provide much wider measurement
range and superior accuracy to controllers based on
diode detectors. Excellent temperature stability is
achieved over the full operating range of -40°C to +85°C.
♦ Variety of Input Ranges
MAX4000: -58dBV to -13dBV
(-45dBm to 0dBm in 50Ω)
MAX4001: -48dBV to -3dBV
(-35dBm to +10dBm in 50Ω)
MAX4002: -43dBV to +2dBV
(-30dBm to +15dBm in 50Ω)
♦ Frequency Range from 100MHz to 2.5GHz
♦ Temperature Stable Linear-in-dB Response
♦ Fast Response: 70ns 10dB Step
♦ 10mA Output Sourcing Capability
♦ Low Power: 17mW at 3V (typ)
The choice of three different input voltage ranges elimi-
nates the need for external attenuators, thus simplifying
PA control-loop design. The logarithmic amplifier is a volt-
age-measuring device with a typical signal range of
-58dBV to -13dBV for the MAX4000, -48dBV to -3dBV for
the MAX4001, and -43dBV to +2dBV for the MAX4002.
♦ Shutdown Current 30µA (max)
The input signal for the MAX4000 is internally AC-coupled
using an on-chip 5pF capacitor in series with a 2kΩ input
resistance. This highpass coupling, with a corner at
16MHz, sets the lowest operating frequency and allows
the input signal source to be DC grounded. The
MAX4001/MAX4002 require an external coupling capaci-
tor in series with the RF input port. These PA controllers
feature a power-on delay when coming out of shutdown,
holding OUT low for approximately 5µs to ensure glitch-
free controller output.
♦ Available in an 8-Bump UCSP and a Small 8-Pin
µMAX Package
Ordering Information
PIN-
PACKAGE
TOP
MARK
PART
TEMP RANGE
ABF
—
MAX4000EBL-T -40°C to +85°C
MAX4000EUA -40°C to +85°C
MAX4001EBL-T -40°C to +85°C
MAX4001EUA -40°C to +85°C
MAX4002EBL-T -40°C to +85°C
MAX4002EUA -40°C to +85°C
8 UCSP-8
8 µMAX
The MAX4000/MAX4001/MAX4002 family is available in
ABE
—
8 UCSP-8
8 µMAX
®
an 8-pin µMAX package and an 8-bump chip-scale
package (UCSP™). The device consumes 5.9mA with a
5.5V supply, and when powered down the typical shut-
down current is 13µA.
ABD
—
8 UCSP-8
8 µMAX
Applications
Pin Configurations appear at end of data sheet.
Transmitter Power Measurement and Control
TSSI for Wireless Terminal Devices
Cellular Handsets (TDMA, CDMA, GPRS, GSM)
RSSI for Fiber Modules
Functional Diagram
OUTPUT
ENABLE
DELAY
SHDN
V
CC
-
gm
+
X1
OUT
DET
DET
DET
DET
DET
CLPF
SET
RFIN
10dB
10dB
10dB
10dB
V-I
LOW-
NOISE
BANDGAP
OFFSET
COMP
µMAX is a registered trademark of Maxim Integrated Products, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
MAX4000
GND
(PADDLE)
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
2.5GHz 45dB RF-Detecting Controllers
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
OUT Short Circuit to GND ..........................................Continuous
V
...........................................................................-0.3V to +6V
Continuous Power Dissipation (TA = +70°C)
CC
OUT, SET, SHDN, CLPF.............................-0.3V to (V
RFIN
MAX4000......................................................................+6dBm
MAX4001....................................................................+16dBm
MAX4002....................................................................+19dBm
Equivalent Voltage
+ 0.3V)
8-Bump UCSP (derate 4.7mW/°C above +70°C).........379mW
8-Pin µMAX (derate 4.5mW/°C above +70°C).............362mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering , 10s) ................................+300°C
CC
MAX4000 ..................................................................0.45V
MAX4001 ....................................................................1.4V
MAX4002 ....................................................................2.0V
RMS
RMS
RMS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, SHDN = 1.8V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
A A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
9.3
30
UNITS
V
Supply Voltage
V
2.7
CC
CC
CC
Supply Current
I
I
V
= 5.5V
5.9
13
mA
µA
mV
V
CC
Shutdown Supply Current
Shutdown Output Voltage
Logic-High Threshold
Logic-Low Threshold
SHDN = 0.8V, V
= 5.5V
CC
V
SHDN = 0.8V
100
OUT
V
1.8
H
V
0.8
20
V
L
SHDN = 3V
SHDN = 0
5
SHDN Input Current
I
µA
SHDN
-0.8
-0.01
SET-POINT INPUT
Voltage Range (Note 2)
Input Resistance
V
Corresponding to central 40dB
0.35
1.45
V
SET
R
30
16
MΩ
V/µs
IN
Slew Rate (Note 3)
MAIN OUTPUT
High, I
= 10mA
2.65
2.75
0.15
8
SOURCE
Voltage Range
V
V
OUT
Low, I
= 350µA
SINK
Output-Referred Noise
Small-Signal Bandwidth
Slew Rate
From CLPF
From CLPF
nV/√Hz
MHz
BW
20
8
V
= 0.2V to 2.6V
V/µs
OUT
2
_______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, SHDN = 1.8V, f = 100MHz to 2.5GHz, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)
RF A A
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
100
-58
-48
-43
-45
-35
-30
22.5
TYP
MAX
2500
-13
-3
UNITS
RF Input Frequency
f
RF
MHz
MAX4000
RF Input Voltage Range
(Note 4)
V
P
MAX4001
MAX4002
MAX4000
MAX4001
MAX4002
dBV
dBm
RF
RF
+2
0
Equivalent Power Range
(50Ω Terminated) (Note 4)
+10
+15
28.5
f
f
f
= 100MHz
= 900MHz
= 1900MHz
25.5
25
RF
RF
RF
Logarithmic Slope
V
mV/dB
S
29
MAX4000
-62
-52
-47
-55
-45
-40
-57
-48
-43
-56
-45
-41
-49
-39
-34
f
f
f
= 100MHz
= 900MHz
= 1900MHz
MAX4001
MAX4002
MAX4000
MAX4001
MAX4002
MAX4000
MAX4001
MAX4002
RF
RF
RF
Logarithmic Intercept
P
dBm
X
RF INPUT INTERFACE
DC Resistance
MAX4001/MAX4002, connected to V
(Note 5)
CC
R
2
2
kΩ
kΩ
pF
DC
Inband Resistance
Inband Capacitance
R
IB
IB
MAX4000, internally AC-coupled
(Note 6)
C
0.5
Note 1: All devices are 100% production tested at T = +25°C and are guaranteed by design for T = -40°C to +85°C as specified.
A
A
All production AC testing is done at 100MHz.
Note 2: Typical value only, set-point input voltage range determined by logarithmic slope and logarithmic intercept.
Note 3: Set-point slew rate is the rate at which the reference level voltage, applied to the inverting input of the g stage, responds to
m
a voltage step at the SET pin (see Figure 1).
Note 4: Typical min/max range for detector.
Note 5: MAX4000 internally AC-coupled.
Note 6: MAX4001/MAX4002 are internally resistive-coupled to V
.
CC
_______________________________________________________________________________________
3
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4000
SET vs. INPUT POWER (μMAX)
MAX4001
SET vs. INPUT POWER (μMAX)
MAX4002
SET vs. INPUT POWER (μMAX)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.9GHz
2.5GHz
1.9GHz
2.5GHz
1.9GHz
2.5GHz
0.9GHz
0.1GHz
0.1GHz
0.9GHz
0.9GHz
0.1GHz
-60 -50 -40 -30 -20 -10
0
10
-50 -40 -30 -20 -10
0
10
20
-40 -30 -20 -10
0
10
20
30
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4000
SET vs. INPUT POWER (UCSP)
MAX4001
SET vs. INPUT POWER (UCSP)
MAX4002
SET vs. INPUT POWER (UCSP)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.5GHz
2.5GHz
1.9GHz
0.1GHz
0.9GHz
1.9GHz
0.9GHz
1.9GHz
0.1GHz
0.9GHz
0.1GHz
2.5GHz
-60 -50 -40 -30 -20 -10
INPUT POWER (dBm)
0
10
-50 -40 -30 -20 -10
0
10
20
-40 -30 -20 -10
0
10
20
30
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4001 LOG CONFORMANCE
vs. INPUT POWER (μMAX)
MAX4002 LOG CONFORMANCE
vs. INPUT POWER (μMAX)
MAX4000 LOG CONFORMANCE
vs. INPUT POWER (μMAX)
4
3
4
4
3
2.5GHz
0.1GHz
2.5GHz
0.1GHz
3
2
2.5GHz
1.9GHz
2
2
1.9GHz
1
1
1
0
0
0
0.9GHz
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
1.9GHz
0.9GHz
0.9GHz
-30
0.1GHz
-40
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
-50
-40
-20
-10
0
10
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
4
_______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4002 LOG CONFORMANCE
vs. INPUT POWER (UCSP)
MAX4001 LOG CONFORMANCE
vs. INPUT POWER (UCSP)
MAX4000 LOG CONFORMANCE
vs. INPUT POWER (UCSP)
4
3
4
3
4
3
2.5GHz
0.1GHz
0.1GHz
0.9GHz
2
2
2
2.5GHz
1
1
1
0.9GHz
0
0
0
0.9GHz
1.9GHz
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
2.5GHz
0.1GHz
1.9GHz
1.9GHz
-35
-25
-15
-5
5
15
25
-40
-30
-20
-10
0
10
20
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4002 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
MAX4001 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 0.1GHz (μMAX)
vs. INPUT POWER AT 0.1GHz (μMAX)
vs. INPUT POWER AT 0.1GHz (μMAX)
MAX4000 toc15
MAX4000 toc13
MAX4000 toc14
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
2
2
2
1
1
1
0
0
0
T
T
= +85°C
= +25°C
= -40°C
T
T
= +85°C
= +25°C
A
T
= +85°C
= +25°C
= -40°C
A
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
A
A
A
T
A
T
T
A
= -40°C
T
A
-35
-25
-15
-5
5
15
25
-50
-40
-30
-20
-10
0
10
-40
-30
-20
-10
0
10
20
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4001 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
MAX4002 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 0.1GHz (UCSP)
vs. INPUT POWER AT 0.1GHz (UCSP)
vs. INPUT POWER AT 0.1GHz (UCSP)
MAX4000 toc17
MAX4000 toc16
MAX4000 toc18
1.8
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2
2
2
1
1
1
0
0
0
T
= +85°C
= +25°C
= -40°C
T
= +85°C
= +25°C
A
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
= +85°C
= +25°C
A
T
A
T
A
T
A
T
T
A
= -40°C
A
T
A
= -40°C
-40
-30
-20
-10
0
10
20
-50
-40
-30
-20
-10
0
10
-35
-25
-15
-5
5
15
25
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
_______________________________________________________________________________________
5
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4002 SET AND LOG CONFORMANCE
MAX4001 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 0.9GHz (μMAX)
vs. INPUT POWER AT 0.9GHz (μMAX)
vs. INPUT POWER AT 0.9GHz (μMAX)
MAX4000 toc21
MAX4000 toc19
MAX4000 toc20
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
2
2
2
T
A
= +85°C
T
= +85°C
A
1
1
1
0
0
0
T
= +85°C
= +25°C
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
T
= +25°C
= -40°C
T
T
= +25°C
= -40°C
A
A
A
T
= -40°C
T
A
A
A
-35
-25
-15
-5
5
15
25
-50
-40
-30
-20
-10
0
10
-40
-30
-20
-10
0
10
20
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4002 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
MAX4001 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 0.9GHz (UCSP)
vs. INPUT POWER AT 0.9GHz (UCSP)
vs. INPUT POWER AT 0.9GHz (UCSP)
MAX4000 toc24
MAX4000 toc22
MAX4000 toc23
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
2
2
2
1
1
1
T
A
= +85°C
0
0
0
T
= +85°C
= -40°C
T
= +85°C
= +25°C
A
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
A
T
T
= +25°C
T
A
A
T
= +25°C
A
= -40°C
T
= -40°C
A
A
-35
-25
-15
-5
5
15
25
-50
-40
-30
-20
-10
0
10
-40
-30
-20
-10
0
10
20
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4001 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
MAX4002 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 1.9GHz (μMAX)
vs. INPUT POWER AT 1.9GHz (μMAX)
vs. INPUT POWER AT 1.9GHz (μMAX)
MAX4000 toc26
MAX4000 toc25
MAX4000 toc27
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
T
A
= +85°C
T
= +85°C
A
T
A
= +85°C
T = +25°C
A
T
= +25°C
T
A
= +25°C
A
2
2
2
T
A
= -40°C
T
A
= -40°C
T
A
= -40°C
1
1
1
0
0
0
T
A
= +85°C
T
A
= +85°C
= +25°C
= -40°C
T
= +85°C
= +25°C
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
A
= +25°C
T
A
T
T
A
T
A
= -40°C
T
A
= -40°C
A
-40
-30
-20
-10
0
10
20
-50
-40
-30
-20
-10
0
10
-35
-25
-15
-5
5
15
25
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
6
_______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4000 SET AND LOG CONFORMANCE
MAX4001 SET AND LOG CONFORMANCE
MAX4002 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 1.9GHz (UCSP)
vs. INPUT POWER AT 1.9GHz (UCSP)
vs. INPUT POWER AT 1.9GHz (UCSP)
MAX4000 toc28
MAX4000 toc29
MAX4000 toc30
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
T
= +85°C
A
T
= +85°C
A
T
= +85°C
A
T
A
= +25°C
T
A
= +25°C
T
= +25°C
A
2
2
2
T
= -40°C
T
= -40°C
A
A
1
1
T
= -40°C
1
A
0
0
0
T
A
= +85°C
T = +85°C
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
= +25°C
T
= +25°C
= -40°C
A
A
T
A
= -40°C
T
A
T
= -40°C
A
-50
-40
-30
-20
-10
0
10
-40
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4001 SET AND LOG CONFORMANCE
MAX4002 SET AND LOG CONFORMANCE
MAX4000 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 2.5GHz (μMAX)
vs. INPUT POWER AT 2.5GHz (μMAX)
vs. INPUT POWER AT 2.5GHz (μMAX)
MAX4000 toc32
MAX4000 toc33
MAX4000 toc31
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
T
= +85°C
T
= +85°C
A
A
T
A
= +85°C
3
2
T
A
= +25°C
T
A
= +25°C
A
T
= +25°C
A
T
= -40°C
2
2
T
= -40°C
A
T
= -40°C
A
1
1
1
0
0
0
T
= +85°C
= +25°C
A
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
A
T
= +85°C
= +25°C
T
A
= +85°C
= +25°C
A
T
A
T
A
T
A
= -40°C
T
= -40°C
T
A
= -40°C
A
-40
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
MAX4000 SET AND LOG CONFORMANCE
MAX4001 SET AND LOG CONFORMANCE
MAX4002 SET AND LOG CONFORMANCE
vs. INPUT POWER AT 2.5GHz (UCSP)
vs. INPUT POWER AT 2.5GHz (UCSP)
vs. INPUT POWER AT 2.5GHz (UCSP)
MAX4000 toc35
MAX4000 toc36
MAX4000 toc34
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4
3
T
A
= +85°C
T
A
= +85°C
3
2
T
A
= +25°C
T
A
= +25°C
2
2
T
= -40°C
A
T
A
= -40°C
1
1
1
T
A
= +25°C
0
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
T
A
= +85°C
T
A
= +85°C
T
= +85°C
= -40°C
A
T
A
= +25°C
T
A
= +25°C
T
A
T
A
= -40°C
T
A
= -40°C
-40
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
_______________________________________________________________________________________
7
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4001
LOG SLOPE vs. FREQUENCY (μMAX)
MAX4000
LOG SLOPE vs. FREQUENCY (μMAX)
MAX4002
LOG SLOPE vs. FREQUENCY (μMAX)
32
31
30
29
28
27
26
25
24
23
31
30
29
28
27
26
25
24
33
32
31
30
29
28
27
26
25
24
T
= +85°C
A
T
T
= +85°C
= +25°C
A
T
= +85°C
A
A
T
= +25°C
A
T
A
= +25°C
T
= -40°C
A
T
= -40°C
A
T
A
= -40°C
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4000
LOG SLOPE vs. FREQUENCY (UCSP)
MAX4001
LOG SLOPE vs. FREQUENCY (UCSP)
MAX4002
LOG SLOPE vs. FREQUENCY (UCSP)
31
30
29
28
27
26
25
24
32
31
30
29
28
27
26
25
24
23
32
31
30
29
28
27
26
25
24
T
= +85°C
A
T = +25°C
A
T
= +85°C
A
T = -40°C
A
T
= +85°C
A
T = +25°C
A
T = +25°C
A
T = -40°C
A
T = -40°C
A
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4002
MAX4001
MAX4000
LOG SLOPE vs. V (μMAX)
LOG SLOPE vs. V (μMAX)
LOG SLOPE vs. V (μMAX)
CC
CC
CC
32
31
30
29
28
27
26
25
24
34
32
31
30
29
28
27
26
25
24
2.5GHz
2.5GHz
33
32
31
30
29
28
27
26
25
24
2.5GHz
1.9GHz
1.9GHz
1.9GHz
0.1GHz
0.9GHz
0.1GHz
0.9GHz
0.9GHz
5.0
0.1GHz
5.0
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.5
V
V
V
CC
CC
CC
8
_______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4000
MAX4001
MAX4002
LOG SLOPE vs. V (UCSP)
LOG SLOPE vs. V (UCSP)
LOG SLOPE vs. V (UCSP)
CC
CC
CC
32
31
30
29
28
27
26
25
33
31
29
27
25
23
33
31
29
27
25
23
2.5GHz
2.5GHz
2.5GHz
1.9GHz
1.9GHz
1.9GHz
0.1GHz
0.1GHz
0.1GHz
0.9GHz
0.9GHz
5.0
0.9GHz
24
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
V
V
V
CC
CC
CC
MAX4000
LOG INTERCEPT vs. FREQUENCY (μMAX)
MAX4001
LOG INTERCEPT vs. FREQUENCY (μMAX)
MAX4002
LOG INTERCEPT vs. FREQUENCY (μMAX)
-50
-51
-52
-53
-54
-55
-56
-57
-58
-59
-39
-40
-41
-42
-43
-44
-45
-46
-47
-48
-49
-32
-34
-36
-38
-40
-42
-44
-46
T
A
= +85°C
T
A
= +85°C
T
= +85°C
A
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C
T
A
= -40°C
T
A
= -40°C
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4001
MAX4002
MAX4000
LOG INTERCEPT vs. FREQUENCY (UCSP)
LOG INTERCEPT vs. FREQUENCY (UCSP)
LOG INTERCEPT vs. FREQUENCY (UCSP)
-40
-42
-44
-46
-48
-50
-52
-32
-34
-36
-38
-40
-42
-44
-46
-55
-56
-57
-58
-59
-60
-61
T
= +25°C
A
T
A
= +25°C
T
= +25°C
A
T = +85°C
A
T = -40°C
A
T = -40°C
T = +85°C
A
T = +85°C
A
A
T = -40°C
A
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
_______________________________________________________________________________________
9
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAX4002
LOG INTERCEPT vs. V (μMAX)
MAX4001
LOG INTERCEPT vs. V (μMAX)
MAX4000
LOG INTERCEPT vs. V (μMAX)
CC
CC
CC
-33
-35
-37
-39
-41
-43
-45
-47
-36
-38
-40
-42
-44
-46
-48
-50
-49
-50
-51
-52
-53
-54
-55
-56
-57
-58
-59
-60
2.5GHz
2.5GHz
2.5GHz
0.1GHz
0.1GHz
1.9GHz
1.9GHz
1.9GHz
0.1GHz
0.9GHz
0.9GHz
0.9GHz
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
V
CC
V
V
CC
CC
MAX4000
LOG INTERCEPT vs. V (UCSP)
MAX4001
LOG INTERCEPT vs. V (UCSP)
MAX4002
LOG INTERCEPT vs. V (UCSP)
CC
CC
CC
-55
-56
-57
-58
-59
-60
-61
-40
-42
-44
-46
-48
-50
-52
-34
-36
-38
-40
-42
-44
-46
2.5GHz
2.5GHz
2.5GHz
0.1GHz
1.9GHz
0.1GHz
0.9GHz
0.1GHz
0.9GHz
1.9GHz
1.9GHz
0.9GHz
3.0
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
2.5
3.5
4.0
(V)
4.5
5.0
5.5
V
V
V
CC
CC
CC
MAX4002 INPUT IMPEDANCE
vs. FREQUENCY (μMAX)
MAX4000 toc63
2500
2000
1500
1000
500
0
2500
2000
1500
1000
500
0
2500
2000
1500
1000
500
0
-100
-200
-300
-400
-500
-600
-700
-800
-100
-200
-300
-400
-500
-600
-700
-800
-100
-200
-300
-400
-500
-600
-700
-800
X
FREQUENCY (GHz) R JXΩ
0.1
0.9
1.9
2.5
2309 -1137
943
129
-120
-36
30
-26
R
0
0
0
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
10 ______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC
A
peratures.)
MAX4001 INPUT IMPEDANCE
vs. FREQUENCY (UCSP)
MAX4000 INPUT IMPEDANCE
vs. FREQUENCY (UCSP)
MAX4000 toc65
MAX4000 toc64
2500
2000
1500
1000
500
0
2500
2000
1500
1000
500
0
-100
-200
-300
-100
-200
-300
-400
-500
-600
-700
-800
X
X
FREQUENCY (GHz) R JXΩ
FREQUENCY (GHz) R JXΩ
0.1
0.9
1.9
2.5
1916 -839
909 -125
228 -48
0.1
0.9
1.9
2.5
1942 -927
1009 -136
-400
314
-57
-500
-600
-700
-800
-900
-1000
102
-29
139 -37
R
R
0
0
0
0.5
1.0
1.5
2.0
2.5
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
MAX4002 INPUT IMPEDANCE
vs. FREQUENCY (UCSP)
SUPPLY CURRENT
vs. SHDN VOLTAGE
MAX4000 toc66
2500
2000
1500
1000
500
0
7
6
V
CC
= 5.5V
-100
-200
-300
X
FREQUENCY (GHz) R JXΩ
5
0.1
0.9
1.9
2.5
1961 -1137
1130
315
-120
-36
4
-400
-500
-600
-700
-800
-900
-1000
163
-26
3
2
1
1.2V
R
0
0
-1
0
0.5
1.0
1.5
2.0
2.5
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
SHDN (V)
FREQUENCY (GHz)
SHDN POWER-ON DELAY RESPONSE TIME
SHDN RESPONSE TIME
1.5V/div
SHDN
1.5V/div
SHDN
5μs
OUT
500mV/div
OUT
500mV/div
2μs/div
2μs/div
______________________________________________________________________________________ 11
2.5GHz 45dB RF-Detecting Controllers
Typical Operating Characteristics (continued)
(V
CC
= 3V, SHDN = V , T = +25°C, unless otherwise specified. All log conformance plots are normalized to their respective tem-
CC A
peratures.)
MAXIMUM OUT VOLTAGE
MAIN OUTPUT NOISE SPECTRAL DENSITY
vs. V BY LOAD CURRENT
CC
10
9
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
8
7
6
0
5
5mA
4
10mA
3
2
1
100
1k
10k
100k
1M
10M
2.5
3.0
3.5
4.0
(V)
4.5
5.0
5.5
FREQUENCY (Hz)
V
CC
Pin Description
PIN
NAME
FUNCTION
µMAX UCSP
1
2
3
A1
A2
A3
RFIN
SHDN
SET
RF Input
Shutdown. Connect to V for normal operation.
Set-Point Input for Controller Mode Operation
CC
Lowpass Filter Connection. Connect external capacitor between CLPF and GND to set
control-loop bandwidth.
4
B3
CLPF
5
6
7
8
C3
—
GND
N.C.
OUT
Ground
No Connection. Not internally connected.
Output to PA Gain-Control Pin
C2
B1, C1
V
Supply Voltage. V = 2.7V to 5.5V.
CC
CC
Block Diagram
OUTPUT-
ENABLE
DELAY
SHDN
V
CC
LOG
DETECTOR
RFIN
SET
g
m
x1
OUT
BLOCK
V-I*
BUFFER
C
CLPF
MAX4000
MAX4001
MAX4002
GND
12 ______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
ANTENNA
POWER AMPLIFIER
OUTPUT
ENABLE
DELAY
SHDN
RF INPUT
XX
V
CC
-
gm
+
X1
OUT
DET
DET
DET
DET
DET
50Ω
MAX4000
CLPF
SET
V
RFIN
SHDN
SET
V
CC
RFIN
CC
10dB
10dB
10dB
10dB
0.1μF
V
V-I
CC
OUT
N.C.
GND
LOW-
NOISE
BANDGAP
OFFSET
COMP
DAC
MAX4000
CLPF
GND
(PADDLE)
C
F
Figure 1. Functional Diagram
Figure 2. Controller Mode Application Circuit Block
capacitor from the CLPF pin to ground sets the band-
width of the PA control loop.
Detailed Description
The MAX4000/MAX4001/MAX4002 family of logarithmic
amplifiers (log amps) is comprised of four main amplifi-
er/limiter stages each with a small-signal gain of 10dB.
The output stage of each amplifier is applied to a full-
wave rectifier (detector). A detector stage also pre-
cedes the first gain stage. In total, five detectors each
separated by 10dB, comprise the log amp strip. Figure
1 shows the functional diagram of the log amps.
Transfer Function
Logarithmic slope and intercept determine the transfer
function of the MAX4000/MAX4001/MAX4002 family of
log amps. The change in SET voltage per dB change in
RF input defines the logarithmic slope. Therefore, a
250mV change at SET results in a 10dB change at
RFIN. The Log-Conformance plots (see Typical Oper-
ating Characteristics) show the dynamic range of the
log amp family. Dynamic range is the range for which
the error remains within a band of 1dB.
A portion of the PA output power is coupled to RFIN of
the log amp controller, and is applied to the log amp
strip. Each detector cell outputs a rectified current and
all cell currents are summed and form a logarithmic
output. The detected output is applied to a high-gain
The intercept is defined as the point where the linear
response, when extrapolated, intersects the y-axis of
the Log-Conformance plot. Using these parameters,
the input power can be calculated at any SET voltage
level within the specified input range with the following
equation:
g
m
stage, which is buffered and then applied to OUT.
OUT is applied to the gain-control pin of the PA to close
the control loop. The voltage applied to SET determines
the output power of the PA in the control loop. The volt-
age applied to SET relates to an input power level
determined by the log amp detector characteristics.
SET
SLOPE
RFIN=
+IP
Extrapolating a straight-line fit of the graph of SET vs.
RFIN provides the logarithmic intercept. Logarithmic
slope, the amount SET changes for each dB change of
RF input, is generally independent of waveform or ter-
mination impedance. The MAX4000/MAX4001/
MAX4002 slope at low frequencies is about 25mV/dB.
Variance in temperature and supply voltage does not
alter the slope significantly as shown in the Typical
Operating Characteristics.
where SET is the set-point voltage, SLOPE is the loga-
rithmic slope (V/dB), RFIN is in either dBm or dBV and
IP is the logarithmic intercept point utilizing the same
units as RFIN.
Applications Information
Controller Mode
Figure 2 provides a circuit example of the MAX4000/
MAX4001/MAX4002 configured as a controller. The
MAX4000/MAX4001/MAX4002 require a 2.7V to 5.5V
supply voltage. Place a 0.1µF low-ESR, surface-mount
The MAX4000/MAX4001/MAX4002 are specifically des-
igned for use in PA control applications. In a control
loop, the output starts at approximately 2.9V (with sup-
ply voltage of 3V) for the minimum input signal and falls
to a value close to ground at the maximum input. With a
portion of the PA output power coupled to RFIN, apply
a voltage to SET and connect OUT to the gain-control
pin of the PA to control its output power. An external
ceramic capacitor close to V
to decouple the supply.
CC
Electrically isolate the RF input from other pins (espe-
cially SET) to maximize performance at high frequencies
(especially at the high-power levels of the MAX4002).
The MAX4000 has an internal input-coupling capacitor
______________________________________________________________________________________ 13
2.5GHz 45dB RF-Detecting Controllers
and does not require external AC-coupling. Achieve
GAIN AND PHASE vs. FREQUENCY
50Ω input matching by connecting a 50Ω resistor
between RFIN and ground. See the Typical Operating
Characteristics section for a plot of Input Impedance vs.
Frequency. See the Additional Input Coupling section
for other coupling methods.
MAX4000 fig03
80
60
180
135
90
GAIN
C = 2000pF
F
40
C = 200pF
F
20
45
C = 200pF
F
The MAX4000/MAX4001/MAX4002 log amps function
as both the detector and controller in power-control
loops. Use a directional coupler to couple a portion of
the PA’s output power to the log amp’s RF input. In
applications requiring dual-mode operation where there
are two PAs and two directional couplers, passively
combine the outputs of the directional couplers before
applying to the log amp. Apply a set-point voltage to
SET from a controlling source (usually a DAC). OUT,
which drives the automatic gain-control pin of the PA,
corrects any inequality between the RF input level and
the corresponding set-point level. This is valid assum-
ing the gain control of the variable gain element is posi-
tive, such that increasing OUT voltage increases gain.
OUT voltage can range from 150mV to within 250mV of
the supply rail while sourcing 10mA. Use a suitable
load resistor between OUT and GND for PA control
inputs that source current. The Typical Operating
Characteristics section has a plot of the sourcing capa-
bilities and output swing of OUT.
0
0
-20
-40
-60
-80
-100
-45
-90
-135
-180
-225
C = 2000pF
F
PHASE
10 100 1k
10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 3. Gain and Phase vs. Frequency Graph
Filter Capacitor and Transient Response
In general, the choice of filter capacitor only partially
determines the time-domain response of a PA control
loop. However, some simple conventions can be
applied to affect transient response. A large filter
capacitor, C , dominates time-domain response, but
F
the loop bandwidth remains a factor of the PA gain-
control range. The bandwidth is maximized at power
outputs near the center of the PA’s range, and mini-
mized at the low and high power levels, where the
slope of the gain-control curve is lowest.
SHDN and Power-On
The MAX4000/MAX4001/MAX4002 can be placed in
shutdown by pulling SHDN to ground. SHDN reduces
supply current to typically 13µA. A graph of SHDN
Response is included in the Typical Operating
A smaller valued C results in an increased loop band-
F
width inversely proportional to the capacitor value.
Inherent phase lag in the PA’s control path, usually
caused by parasitics at the OUT pin, ultimately results
in the addition of complex poles in the AC loop equa-
tion. To avoid this secondary effect, experimentally
Characteristics section. Connect SHDN and V
together for continuous on-operation.
CC
Power Convention
Expressing power in dBm, decibels above 1mW, is the
most common convention in RF systems. Log amp
input levels specified in terms of power are a result of
following common convention. Note that input power
does not refer to power, but rather to input voltage rela-
tive to a 50Ω impedance. Use of dBV, decibels with
determine the lowest usable C for the power amplifier
F
of interest. This requires full consideration to the intrica-
cies of the PA control function. The worst-case condi-
tion, where the PA output is smallest (gain function is
steepest), should be used because the PA control
function is typically nonlinear. An additional zero can
be added to improve loop dynamics by placing a resis-
respect to a 1V
sine wave, yields a less ambiguous
RMS
tor in series with C . See Figure 3 for the gain and
phase response for different C values.
F
result. The dBV convention has its own pitfalls in that
log amp response is also dependent on waveform. A
complex input such as CDMA does not have the exact
same output response as the sinusoidal signal. The
MAX4000/MAX4001/MAX4002 performance specifica-
tions are in both dBV and dBm, with equivalent dBm
levels for a 50Ω environment. To convert dBV values
into dBm in a 50Ω network, add 13dB.
F
Additional Input Coupling
There are three common methods for input coupling:
broadband resistive, narrowband reactive, and series
attenuation. A broadband resistive match is implemented
by connecting a resistor to ground at RFIN as shown in
Figure 4a. A 50Ω resistor (use other values for different
input impedances) in this configuration in parallel with the
input impedance of the MAX4000 presents an input
14 ______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
impedance of approximately 50Ω. See the Typical
Operating Characteristics for the input impedance plot to
determine the required external termination at the fre-
quency of interest. The MAX4001/MAX4002 require an
additional external coupling capacitor in series with the
RF input. As the operating frequency increases over
2GHz, input impedance is reduced, resulting in the need
for a larger-valued shunt resistor. Use a Smith Chart for
calculating the ideal shunt resistor value.
MAX4000
MAX4001
MAX4002
50Ω SOURCE
50Ω
C **
C *
C
C
RFIN
R
S
C
V
R
IN
IN
For high frequencies, use narrowband reactive coupling.
This implementation is shown in Figure 4b. The matching
components are drawn as reactances since these can
be either capacitors or inductors depending on the input
impedance at the desired frequency and available stan-
dard value components. A Smith Chart is used to obtain
the input impedance at the desired frequency and then
matching reactive components are chosen. Table 1 pro-
vides standard component values at some common fre-
quencies for the MAX4001. Note that these inductors
must have a high SRF (self-resonant frequency), much
higher than the intended frequency of operation to imple-
ment this matching scheme.
50Ω
CC
*MAX4000 ONLY INTERNALLY COUPLED
**MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
Figure 4a. Broadband Resistive Matching
MAX4000
MAX4001
MAX4002
Device sensitivity is increased by the use of a reactive
matching network, because a voltage gain occurs
before being applied to RFIN. The associated gain is
calculated with the following equation:
50Ω SOURCE
C **
C
C *
C
j
X1
50Ω
RFIN
C
V
R
IN
IN
R2
R1
j
X2
Voltage Gain
= 20log
10
dB
CC
where R1 is the source impedance to which the device
is being matched, and R2 is the input resistance of the
device. The gain is the best-case scenario for a perfect
match. However, component tolerance and standard
value choice often result in a reduced gain.
*MAX4000 ONLY INTERNALLY COUPLED
**MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
Figure 4b. Narrowband Reactive Matching
Figure 4c demonstrates series attenuation coupling.
This method is intended for use in applications where
the RF input signal is greater than the input range of the
device. The input signal is thus resistively divided by
the use of a series resistor connected to the RF source.
Since the MAX4000/MAX4001/MAX4002 log amps offer
a wide selection of RF input ranges, series attenuation
coupling is not needed for typical applications.
MAX4000
MAX4001
MAX4002
C **
C
C *
C
R
ATTN
RFIN
STRIPLINE
Table 1. Suggested Components for
MAX4001 Reactive Matching Network
C
V
R
IN
IN
FREQUENCY
(GHz)
VOLTAGE
GAIN (dB)
j
X1
(nH)
j
X2
(nH)
CC
*MAX4000 ONLY INTERNALLY COUPLED
**MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING
0.9
1.9
2.5
38
47
12.8
3.2
4.4
—
4.7
1.8
Figure 4c. Series Attenuation Network
-0.3
______________________________________________________________________________________ 15
2.5GHz 45dB RF-Detecting Controllers
Waveform Considerations
UCSP Reliability
The MAX4000/MAX4001/MAX4002 family of log amps
respond to voltage, not power, even though input levels
are specified in dBm. It is important to realize that input
signals with identical RMS power but unique waveforms
results in different log amp outputs.
The UCSP represents a unique package that greatly
reduces board space compared to other packages.
UCSP reliability is integrally linked to the user’s assem-
bly methods, circuit board material, and usage environ-
ment. The user should closely review these areas when
considering use of a UCSP. This form factor may not
perform equally to a packaged product through tradi-
tional mechanical reliability tests. Performance through
operating life test and moisture resistance remains
uncompromised as it is primarily determined by the
wafer fabrication process. Mechanical stress perform-
ance is a greater consideration for a UCSP. UCSP sol-
der joint contact integrity must be considered since the
package is attached through direct solder contact to
the user’s PCB. Testing done to characterize the UCSP
reliability performance shows that it is capable of per-
forming reliably through environmental stresses.
Results of environmental stress tests and additional
usage data and recommendations are detailed in the
UCSP application note, which can be found on Maxim’s
website, www.maxim-ic.com.
Differing signal waveforms result in either an upward or
downward shift in the logarithmic intercept. However,
the logarithmic slope remains the same.
Layout Considerations
As with any RF circuit, the layout of the MAX4000/
MAX4001/MAX4002 circuits affects performance. Use a
short 50Ω line at the input with multiple ground vias
along the length of the line. The input capacitor and
resistor should both be placed as close to the IC as
possible. V
should be bypassed as close as possi-
CC
ble to the IC with multiple vias connecting the capacitor
to the ground plane. It is recommended that good RF
components be chosen for the desired operating fre-
quency range. Electrically isolate RF input from
other pins (especially SET) to maximize perfor-
mance at high frequencies (especially at the high
power levels of the MAX4002).
Chip Information
TRANSISTOR COUNT: 358
Pin Configurations
TOP VIEW
PROCESS: Bipolar
RFIN
SHDN
SET
1
2
3
4
8
7
6
5
V
CC
OUT
N.C.
GND
MAX4000
MAX4001
MAX4002
CLPF
μMAX
TOP VIEW
(BUMPS ON BOTTOM)
1
2
3
A
B
C
RFIN
SHDN
SET
MAX4000
MAX4001
MAX4002
V
CLPF
GND
CC
CC
V
OUT
UCSP
16 ______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 3x3 UCSP
1
21-0093
L
1
______________________________________________________________________________________ 17
2.5GHz 45dB RF-Detecting Controllers
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
4X S
8
8
MILLIMETERS
INCHES
DIM MIN
MAX
MAX
MIN
-
-
0.043
0.006
0.037
0.014
0.007
0.120
1.10
0.15
0.95
0.36
0.18
3.05
A
0.002
0.030
0.010
0.005
0.116
0.05
0.75
0.25
0.13
2.95
A1
A2
b
E
H
Ø0.50±0.1
c
D
e
0.0256 BSC
0.65 BSC
0.6±0.1
E
H
0.116
0.188
0.016
0°
0.120
2.95
4.78
0.41
0°
3.05
5.03
0.66
6°
0.198
0.026
6°
L
1
1
α
S
0.6±0.1
0.0207 BSC
0.5250 BSC
BOTTOM VIEW
D
TOP VIEW
A1
A2
A
c
α
e
L
b
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0036
J
1
18 ______________________________________________________________________________________
2.5GHz 45dB RF-Detecting Controllers
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
1
2
7/02
—
—
12/07
Insertion/correction of figures and text changes.
1, 4–13, 16
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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