MAX4200_V01 [MAXIM]
Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers;
| 型号： | MAX4200_V01 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers |
| 文件： | 总13页 (文件大小：2356K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Click here for production status of specific part numbers.
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
General Description
Features
● 2.2mA Supply Current
The MAX4200–MAX4205 are ultra-high-speed, open-
loop buffers featuring high slew rate, high output current,
low noise, and excellent capacitive-load-driving capability.
The MAX4200/MAX4201/MAX4202 are single buffers,
while the MAX4203/MAX4204/MAX4205 are dual buffers.
The MAX4201/MAX4204 have integrated 50Ω termination
resistors, making them ideal for driving 50Ω transmission
lines. The MAX4202/MAX4205 include 75Ω back-
termination resistors for driving 75Ω transmission lines.
The MAX4200/MAX4203 have no internal termination
resistors.
● High Speed
• 780MHz -3dB Bandwidth (MAX4201/MAX4202)
• 280MHz 0.1dB Gain Flatness (MAX4201/MAX4202)
• 4200V/μs Slew Rate
● Low 2.1nV/√Hz Voltage-Noise Density
● Low 0.8pA/√Hz Current-Noise Density
● High ±90mA Output Drive (MAX4200/MAX4203)
● Excellent Capacitive-Load-Driving Capability
®
● Available in Space-Saving SOT23 or μMAX
The MAX4200–MAX4205 use a proprietary architecture
to achieve up to 780MHz -3dB bandwidth, 280MHz 0.1dB
gain flatness, 4200V/μs slew rate, and ±90mA output current
drive capability. They operate from ±5V supplies and draw
only 2.2mA of quiescent current. These features, along
with low-noise performance, make these buffers suitable
for driving high-speed analog-to-digital converter (ADC)
inputs or for data-communications applications.
Packages
Applications
● High-Speed DAC Buffers
● Wireless LANs
● Digital-Transmission Line Drivers
● High-Speed ADC Input Buffers
● IF/Communications Systems
Typical Application Circuit
R
50Ω
*
T
50Ω CABLE
IN
OUT
R
50Ω
*
EXT
MAX4201
COAXIAL CABLE DRIVER
*
R = R + R
L T EXT
μMAX is a registered trademark of Maxim Integrated Products, Inc.
19-1338; Rev 4; 12/17
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Absolute Maximum Ratings
Supply Voltage (V
to V )..............................................+12V
Operating Temperature Range........................... -40°C to +85°C
Storage Temperature Range............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)........................................+260°C
Junction Temperature......................................................+150°C
CC
EE
Voltage on Any Pin to GND...........(V - 0.3V) to (V
+ 0.3V)
EE
CC
Output Short-Circuit Duration to GND.......................Continuous
Continuous Power Dissipation (T = +70°C)
A
5-Pin SOT23 (derate 7.1mW/°C above +70°C) ..........571mW
8-Pin μMAX (derate 4.1mW/°C above +70°C)............330mW
8-Pin SO (derate 5.9mW/°C above +70°C).................471mW
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.
DC Electrical Characteristics
(V
= +5V, V = -5V, R = ∞, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.)
MAX A
CC
EE
L
A
MIN
PARAMETER
SYMBOL
CONDITIONS
Guaranteed by PSR test
Per buffer, V = 0V
MIN
TYP
MAX
±5.5
4
UNITS
V
Operating Supply Voltage
Quiescent Supply Current
Input Offset Voltage
V
±4
S
I
2.2
1
mA
S
IN
V
V
V
= 0V
= 0V
15
mV
OS
IN
Input Offset Voltage Drift
TCV
20
μV/°C
OS
IN
Input Offset Voltage
Matching
MAX4203/MAX4204/MAX4205
0.4
mV
Input Bias Current
Input Resistance
I
0.8
500
0.96
0.50
0.50
72
10
μA
kΩ
B
R
(Note 1)
IN
MAX4200/MAX4203, R
-3.0V ≤
= 150Ω
= 50Ω
= 75Ω
0.9
0.42
0.41
55
1.1
EXT
EXT
EXT
Voltage Gain
A
V
≤
MAX4201/MAX4204, R
0.58
0.59
V/V
dB
Ω
V
OUT
3.0V
MAX4202/MAX4205, R
Power-Supply Rejection
Output Resistance
PSR
V = ±4V to ±5.5V
S
MAX4200/MAX4203
MAX4201/MAX4204
MAX4202/MAX4205
MAX4200/MAX4203
MAX4201/MAX4204
MAX4202/MAX4205
MAX4200/MAX4203
MAX4201/MAX4204
MAX4202/MAX4205
8
R
f = DC
50
OUT
75
±90
±52
±44
150
90
Output Current
I
R = 30Ω
mA
mA
OUT
L
Short-Circuit Output Current
I
Sinking or sourcing
SC
75
R = 150Ω
±3.3
±3.2
±3.8
±3.7
±3.3
±2.1
±2.3
L
MAX4200/MAX4203
R = 100Ω
L
Output-Voltage Swing
V
R = 37.5Ω
V
OUT
L
MAX4201/MAX4204
MAX4202/MAX4205
R = 50Ω
±1.9
±2.0
L
R = 75Ω
L
Maxim Integrated
│ 2
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
AC Electrical Characteristics (continued)
(V
= +5V, V
= -5V, R = 100Ω for MAX4200/MAX4201/MAX4203/MAX4204, R = 150Ω for MAX4202/MAX4205, T = T
to
MIN
CC
EE
L
L
A
T
, unless otherwise noted. Typical values are at T = +25°C.)
A
MAX
PARAMETER
SYMBOL
CONDITIONS
MAX4200
MIN
TYP
660
780
530
720
220
280
130
230
490
310
4200
405
12
MAX
UNITS
MAX4201/MAX4202
MAX4203
-3dB Bandwidth
BW
V
V
≤ 100mV
MHz
(-3dB)
OUT
RMS
MAX4204/MAX4205
MAX4200
MAX4201/MAX4202
MAX4203
0.1dB Bandwidth
BW
≤ 100mV
MHz
MHz
(0.1dB)
OUT
RMS
MAX4204/MAX4205
MAX4200/MAX4201/MAX4202
MAX4203/MAX4204/MAX4205
Full-Power Bandwidth
FPBW
SR
V
V
≤ 2V
P-P
OUT
Slew Rate
= 2V step
= 2V step
V/μs
ps
OUT
Group Delay Time
Settling Time to 0.1%
t
V
ns
S
OUT
f = 5MHz
-48
-45
-34
-47
-44
-32
-72
-48
-48
-83
-47
-47
1.3
0.15
2.1
0.8
2
MAX4200/MAX4201/
MAX4202
f = 20MHz
f = 100MHz
f = 5MHz
V
2V
=
Spurious-Free Dynamic
Range
OUT
SFDR
dBc
P-P
MAX4203/MAX4204/
MAX4205
f = 20MHz
f = 100MHz
Second harmonic
MAX4200/MAX4201/
MAX4202, f = 500kHz,
Third harmonic
Total harmonic
Second harmonic
Third harmonic
Total harmonic
V
= 2V
P-P
OUT
Harmonic Distortion
HD
dBc
MAX4203/MAX4204/
MAX4205, f = 500kHz,
V
= 2V
P-P
OUT
Differential Gain Error
Differential Phase Error
Input Voltage-Noise Density
Input Current-Noise Density
Input Capacitance
DG
DP
NTSC, R = 150Ω
%
L
NTSC, R = 150Ω
degrees
nV/√Hz
pA/√Hz
pF
L
e
n
f = 1MHz
f = 1MHz
i
n
C
IN
Output Impedance
Z
f = 10MHz
6
Ω
OUT
f = 10MHz
-87
-65
Amplifier Crosstalk
X
V
= 2V
P-P
dB
TALK
OUT
f = 100MHz
Note 1: Tested with no load; increasing load will decrease input impedance.
Maxim Integrated
│ 3
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Typical Operating Characteristics
(V
= +5V, V = -5V, R = 100Ω for MAX4200/MAX4201/MAX4203/MAX4204, R = 150Ω for MAX4202/MAX4205, unless otherwise
CC
EE
L
L
noted.)
MAX4200
MAX4201/MAX4202
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4200/MAX4201/MAX4202
LARGE-SIGNAL GAIN vs. FREQUENCY
SMALL-SIGNAL GAIN vs. FREQUENCY
4
3
4
3
4
3
V
OUT
= 100mV
V
OUT
= 100mV
V = 2V
P-P
OUT
P-P
P-P
2
1
2
1
2
1
0
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
-5
-6
-5
-6
-5
-6
1M
1M
100k
1M
10M
100M
1G
100k
10M
100M
1G
100k
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4203
MAX4204/MAX4205
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4203/MAX4204/MAX4205
LARGE-SIGNAL GAIN vs. FREQUENCY
SMALL-SIGNAL GAIN vs. FREQUENCY
4
3
4
3
4
3
V
OUT
= 100mV
V
OUT
= 100mV
V = 2V
P-P
OUT
P-P
P-P
2
1
2
1
2
1
0
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
-5
-6
-5
-6
-5
-6
100M
FREQUENCY (Hz)
100k
1M
10M
1G
100k
1M
10M
100M
1G
10G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
POWER-SUPPLY REJECTION
vs. FREQUENCY
GROUP DELAY vs. FREQUENCY
SLEW RATE vs. OUTPUT VOLTAGE
5
4
0
9000
8000
7000
6000
5000
4000
-10
3
2
-20
-30
-40
-50
-60
-70
-80
1
0
-1
-2
-3
3000
2000
1000
0
-4
-5
-90
-100
100k
1M
10M
100M
1G
10G
100k
1M
10M
100M
1G
10G
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT VOLTAGE (Vp-p)
FREQUENCY (Hz)
FREQUENCY (Hz)
Maxim Integrated
│ 4
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Typical Operating Characteristics (continued)
(V
= +5V, V = -5V, R = 100Ω for MAX4200/MAX4201/MAX4203/MAX4204, R = 150Ω for MAX4202/MAX4205, unless otherwise
CC
EE L L
noted.)
MAX4200/MAX4201/MAX4202
HARMONIC DISTORTION vs. FREQUENCY
MAX4203/MAX4204/MAX4205
HARMONIC DISTORTION vs. FREQUENCY
MAX4200/MAX4203
OUTPUT IMPEDANCE vs. FREQUENCY
0
0
100
V
IN
= 2Vp-p
V
OUT
= 2Vp-p
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
THIRD HARMONIC
THIRD HARMONIC
10
SECOND HARMONIC
SECOND HARMONIC
1M
-100
-100
1
100k
1M
10M
100M
100k
10M
100M
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4201/MAX4204
OUTPUT IMPEDANCE vs. FREQUENCY
MAX4202/MAX4205
OUTPUT IMPEDANCE vs. FREQUENCY
MAX4203/MAX4204/MAX4205
CROSSTALK vs. FREQUENCY
100
100
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
10
-100
100k
1M
10M
100M
1G
100k
1M
10M
100M
1G
100k
1M
10M
100M
1G
10G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
DIFFERENTIAL GAIN AND PHASE
INPUT VOLTAGE-NOISE DENSITY
vs. FREQUENCY
INPUT CURRENT-NOISE DENSITY
vs. FREQUENCY
(R = 150Ω)
L
100
10
1.5
1.0
0.5
0
-0.5
0
100
10
1.0
0.1
0.20
0.15
0.10
0.05
0
1
-0.05
1
10 100
1k 10k 100k 1M 10M
1
10 100
1k 10k 100k 1M 10M
0
100
FREQUENCY (Hz)
FREQUENCY (Hz)
IRE
Maxim Integrated
│ 5
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Typical Operating Characteristics (continued)
(V
= +5V, V = -5V, R = 100Ω for MAX4200/MAX4201/MAX4203/MAX4204, R = 150Ω for MAX4202/MAX4205, unless otherwise
CC
EE L L
noted.)
OUTPUT VOLTAGE SWING vs.
GAIN ERROR vs. INPUT VOLTAGE
EXTERNAL LOAD RESISTANCE
SMALL-SIGNAL PULSE RESPONSE
MAX4200-21
14
12
10
8
10
9
8
7
6
5
4
3
2
1
MAX4200/4203
MAX4201/4204
IN
GND
GND
VOLTAGE
50mV/div
6
R = 100Ω
L
OUT
4
MAX4202/4205
R = 150Ω
L
2
0
-5 -4 -3 -2 -1
0
1
2
3
4
5
0
50 100 150 200 250 300 350 400
TIME (5ns/div)
INPUT VOLTAGE (V)
EXTERNAL LOAD RESISTANCE (Ω)
MAX4201/MAX4202/MAX4204/MAX4205
MAX4200/MAX4203
SMALL-SIGNAL PULSE RESPONSE
LARGE-SIGNAL PULSE RESPONSE
SMALL-SIGNAL PULSE RESPONSE
MAX4200-22
MAX4200-23
MAX4200-24
IN
GND
IN
GND
IN
GND
GND
VOLTAGE
50mV/div
VOLTAGE
50mV/div
VOLTAGE
1V/div
OUT
GND
OUT
GND
OUT
C
LOAD
= 15pF
C
LOAD
= 22pF
TIME (5ns/div)
TIME (5ns/div)
TIME (5ns/div)
Maxim Integrated
│ 6
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Typical Operating Characteristics (continued)
(V
= +5V, V = -5V, R = 100Ω for MAX4200/MAX4201/MAX4203/MAX4204, R = 150Ω for MAX4202/MAX4205, unless otherwise
CC
EE
L
L
noted.)
SUPPLY CURRENT (PER BUFFER)
vs. TEMPERATURE
MAX4200/MAX4203
LARGE-SIGNAL PULSE RESPONSE
MAX4201/MAX4202/MAX4204/MAX4205
LARGE-SIGNAL PULSE RESPONSE
MAX4200-25
MAX4200-26
4.0
3.5
3.0
2.5
2.0
1.5
1.0
IN
GND
IN
GND
GND
VOLTAGE
1V/div
VOLTAGE
1V/div
OUT
GND
OUT
C
LOAD
= 15pF
C
LOAD
= 22pF
TIME (5ns/div)
TIME (5ns/div)
-40
-15
10
35
60
85
TEMPERATURE (°C)
MAX4200/MAX4203
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
INPUT BIAS CURRENT
vs. TEMPERATURE
5
4
5
4
4.0
3.8
3.6
3.4
3.2
3.0
3
3
R
= 150Ω
L
2
2
R
L
= 100Ω
1
1
0
0
-1
-2
-3
-4
-5
-1
-2
-3
-4
-5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
Maxim Integrated
│ 7
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Pin Configurations
TOP VIEW
MAX4203
MAX4204
MAX4205
MAX4200
MAX420ꢀ
MAX4202
MAX4200
MAX420ꢀ
MAX4202
1
2
3
4
8
7
6
5
1
2
3
5
1
2
3
4
8
7
6
5
OUT
N.C.
V
V
N.C.
IN1
N.C.
N.C.
IN
CC1
CC2
OUT1
V
CC
*R
T
*R
T
*R
T
V
*R
T
EE
OUT
N.C.
V
OUT2
IN2
EE1
V
V
EE2
EE
IN
4
V
CC
SOꢁꢂMAX
SO
SOT23-5
* R = 0Ω (MAX4200/MAX4203)
T
R
R
= 50Ω (MAX4201/MAX4204)
= 75Ω (MAX4202/MAX4205)
T
T
N.C. = NOT INTERNALLY CONNECTED
Pin Description
PIN
MAX4203
MAX4204
MAX4205
MAX4200/MAX4201/MAX4202
NAME
FUNCTION
SOT23-5
SO
SO/µMAX
1
3
1, 2, 5, 8
—
—
1
N.C.
IN
No Connection. Not Internally Connected
Buffer Input
3
—
—
2
—
—
4
IN1
Buffer 1 Input
2
OUT1
Buffer 1 Output
—
3
V
Negative Power Supply
Negative Power Supply for Buffer 1
Negative Power Supply for Buffer 2
Buffer 2 Input
EE
—
—
—
—
5
—
—
—
—
6
V
V
EE1
4
EE2
5
IN2
OUT2
OUT
6
Buffer 2 Output
—
—
7
Buffer Output
4
7
V
Positive Power Supply
Positive Power Supply for Buffer 2
Positive Power Supply for Buffer 1
CC
—
—
—
—
V
CC2
CC1
8
V
Maxim Integrated
│ 8
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
●
●
Use a PC board with at least two layers; it should be
as free from voids as possible.
Detailed Description
The MAX4200–MAX4205 wide-band, open-loop buffers
feature high slew rates, high output current, low 2.1nV√Hz
voltage-noise density, and excellent capacitive-load-driv-
ing capability. The MAX4200/MAX4203 are single/dual
buffers with up to 660MHz bandwidth, 230MHz 0.1dB
gain flatness, and a 4200V/μs slew rate. The MAX4201/
MAX4204 single/dual buffers with integrated 50Ω output
termination resistors, up to 780MHz bandwidth, 280MHz
gain flatness, and a 4200V/μs slew rate, are ideally suited
for driving high-speed signals over 50Ω cables. The
MAX4202/MAX4205 provide bandwidths up to 720MHz,
230MHz gain flatness, 4200V/μs slew rate, and integrated
75Ω output termination resistors for driving 75Ω cables.
Keep signal lines as short and as straight as pos-
sible. Do not make 90° turns; round all corners.
Input Impedance
The MAX4200–MAX4205 input impedance looks like
a 500kΩ resistor in parallel with a 2pF capacitor. Since
these devices operate without negative feedback, there
is no loop gain to transform the input impedance upward,
as in closed-loop buffers. As a consequence, the input
impedance is directly related to the output impedance. If
the output load impedance decreases, the input imped-
ance also decreases. Inductive input sources (such as an
unterminated cable) may react with the input capacitance
and produce some peaking in the buffer’s frequency
response. This effect can usually be minimized by using
a properly terminated transmission line at the buffer input,
as shown in Figure 1.
With an open-loop gain that is slightly less than +1V/V,
these devices do not have to be compensated with the
internal dominant pole (and its associated phase shift)
that is present in voltage-feedback devices. This feature
allows the MAX4200–MAX4205 to achieve a nearly con-
stant group delay time of 405ps over their full frequency
range, making them well suited for a variety of RF and IF
signal-processing applications.
50Ω COAX
R *
T
These buffers operate with ±5V supplies and consume
only 2.2mA of quiescent supply current per buffer while
providing up to ±90mA of output current drive capability.
SOURCE
R
50Ω
L
MAX42_ _
Applications Information
Power Supplies
The MAX4200–MAX4205 operate with dual supplies from
*MAX4201/4202/4204/4205 ONLY
±4V to ±5.5V. Both V
and V
should be bypassed to
CC
EE
the ground plane with a 0.1μF capacitor located as close
to the device pin as possible.
Figure 1. Using a Properly Terminated Input Source
Layout Techniques
Output Current and Gain Sensitivity
Maxim recommends using microstrip and stripline tech-
niques to obtain full bandwidth. To ensure that the PC
board does not degrade the amplifier’s performance,
design it for a frequency greater than 6GHz. Pay care-
ful attention to inputs and outputs to avoid large para-
sitic capacitance. Whether or not you use a constant-
impedance board, observe the following guidelines when
designing the board:
The absence of negative feedback means that open-loop
buffers have no loop gain to reduce their effective output
impedance. As a result, open-loop devices usually suffer
from decreasing gain as the output current is decreased.
The MAX4200–MAX4205 include local feedback around
the buffer’s class-AB output stage to ensure low output
impedance and reduce gain sensitivity to load variations.
This feedback also produces demand-driven current bias
to the output transistors for ±90mA (MAX4200/MAX4203)
drive capability that is relatively independent of the output
voltage (see Typical Operating Characteristics).
●
●
●
Do not use wire-wrap boards, because they are too
inductive.
Do not use IC sockets, because they increase para-
sitic capacitance and inductance.
Use surface-mount instead of through-hole compo-
nents for better high-frequency performance.
Maxim Integrated
│ 9
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Figure 2 shows the frequency response of the MAX4200/
MAX4203 under different capacitive loads. To settle
out some of the peaking, the output requires an isola-
tion resistor like the one shown in Figure 3. Figure 4 is
a plot of the MAX4200/MAX4203 frequency response
with capacitive loading and a 10Ω isolation resistor.
In many applications, the output termination resistors
included in the MAX4201/MAX4202/ MAX4204/MAX4205
will serve this purpose, reducing component count and
board space. Figure 5 shows the MAX4201/MAX4202/
MAX4204/MAX4205 frequency response with capacitive
loads of 47pF, 68pF, and 120pF.
Output Capacitive Loading and Stability
The MAX4200–MAX4205 provide maximum AC per-
formance with no load capacitance. This is the case
when the load is a properly terminated transmission line.
However, these devices are designed to drive any load
capacitance without oscillating, but with reduced AC per-
formance.
Since the MAX4200–MAX4205 operate in an open-
loop configuration, there is no negative feedback to be
transformed into positive feedback through phase shift
introduced by a capacitive load. Therefore, these devices
will not oscillate with capacitive loading, unlike similar
buffers operating in a closed-loop configuration. However,
a capacitive load reacting with the buffer’s output imped-
ance can still affect circuit performance. A capacitive load
will form a lowpass filter with the buffer’s output resistance,
thereby limiting system bandwidth. With higher capacitive
loads, bandwidth is dominated by the RC network formed
Coaxial Cable Drivers
Coaxial cable and other transmission lines are easily
driven when properly terminated at both ends with their
characteristic impedance. Driving back-terminated trans-
mission lines essentially eliminates the line’s capacitance.
The MAX4201/MAX4204, with their integrated 50Ω output
termination resistors, are ideal for driving 50Ω cables.
The MAX4202/MAX4205 include integrated 75Ω termina-
tion resistors for driving 75Ω cables. Note that the output
termination resistor forms a voltage divider with the load
resistance, thereby decreasing the amplitude of the sig-
nal at the receiving end of the cable by one half (see the
Typical Application Circuit).
by R and C ; the bandwidth of the buffer itself is much
T
L
higher. Also note that the isolation resistor forms a divider
that decreases the voltage delivered to the load.
Another concern when driving capacitive loads results
from the amplifier’s output impedance, which looks induc-
tive at high frequency. This inductance forms an L-C reso-
nant circuit with the capacitive load and causes peaking in
the buffer’s frequency response.
Maxim Integrated
│ 10
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
5
V
OUT
= 100mV
P-P
C = 47pF
L
4
C = 68pF
L
3
2
C = 120pF
L
1
R
ISO
V
IN
V
OUT
0
C
L
-1
-2
-3
MAX4200
MAX4203
C = 220pF
L
-4
-5
100k
1M
10M
100M
1G
FREQUENCY (Hz)
Figure 2. MAX4200/MAX4203 Small-Signal Gain vs.
Frequency with Load Capacitance and No Isolation Resistor
Figure 3. Driving a Capacitive Load Through an Isolation
Resistor
5
5
R
V
= 10Ω
= 100mV
V = 100mV
P-P
OUT
ISO
4
4
P-P
OUT
3
2
3
2
C = 47pF
L
C = 47pF
L
1
1
C = 68pF
L
C = 68pF
L
0
0
-1
-2
-3
-1
-2
-3
C = 120pF
L
C = 120pF
L
-4
-5
-4
-5
10M
FREQUENCY (Hz)
100k
1M
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
Figure 4. MAX4200/MAX4203 Small-Signal Gain vs.
Frequency with Load Capacitance and 10Ω Isolation Resistor
Figure 5. MAX4201/MAX4202/MAX4204/MAX4205 Small-
Signal Gain vs. Frequency with Capacitive Load and No
External Isolation Resistor
Maxim Integrated
│ 11
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Ordering Information
Selector Guide
TOP
MARK
PKG
CODE
INTERNAL
OUTPUT
BUFFERS TERMINATION
PART
PIN-PACKAGE
NO. OF
PART
PIN-PACKAGE
MAX4200ESA
MAX4200EUK-T
MAX4201ESA
MAX4201EUK-T
MAX4202ESA
MAX4202EUK-T
MAX4203ESA
MAX4203EUA-T
MAX4204ESA
MAX4204EUA-T
MAX4205ESA
MAX4205EUA-T
8 SO
—
AABZ
—
S8-2
U5-1
S8-2
U5-1
S8-2
U5-1
S8-2
U8-1
S8-2
U8-1
S8-2
U8-1
(Ω)
5 SOT23-5
8 SO
MAX4200
MAX4201
MAX4202
MAX4203
MAX4204
MAX4205
1
1
1
2
2
2
—
50
70
—
50
75
8 SO, 5 SOT23
8 SO, 5 SOT23
8 SO, 5 SOT23
8 SO/μMAX
5 SOT23-5
8 SO
ABAA
—
5 SOT23-5
8 SO
ABAB
—
8 SO/μMAX
8 SO/μMAX
8 µMAX-8
8 SO
—
—
8 µMAX-8
8 SO
—
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character,
but the drawing pertains to the package regardless of RoHS
status.
—
8 µMAX-8
—
Note: All devices are specified over the -40°C to +85°C operat-
ing temperature range.
PACKAGE PACKAGE
LAND PATTERN
NO.
OUTLINE NO.
TYPE
8-SOIC
5-SOT23
8-µMAX
CODE
Chip Information
TRANSISTOR COUNTS:
S8-2
21-0041
21-0052
21-0036
90-0096
90-0174
90-0092
U5-1
U8-1
MAX4200/MAX4201/MAX4202: 33
MAX4203/MAX4204/MAX4205: 67
SUBSTRATE CONNECTED TO V
EE
Maxim Integrated
│ 12
www.maximintegrated.com
MAX4200–MAX4205
Ultra-High-Speed, Low-Noise, Low-Power,
SOT23 Open-Loop Buffers
Revision History
REVISION
NUMBER
REVISION
DATES
PAGES
DESCRIPTION
CHANGED
4
12/17
Updated Absolute Maximum Ratings section
2
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2017 Maxim Integrated Products, Inc.
│ 13
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明