MAX1601EUR-T [MAXIM]
Analog IC ; 模拟IC\n
| 型号： | MAX1601EUR-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Analog IC
|
| 文件： | 总12页 (文件大小：297K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1613; Rev 0; 1/00
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
General Description
Features
The MAX6101–MAX6105 are low-cost, low-dropout
(LDO), micropower voltage references. These three-termi-
nal references operate with an input voltage range from
ꢀ Ultra-Small 3-Pin SOT23 Package
ꢀ Low Cost
(V
+ 200mV) to 12.6V and are available with output
OUT
ꢀ Stable with C
= 0 to 1µF
LOAD
voltage options of 1.25V, 2.5V, 3V, 4.096V, and 5V. They
feature a proprietary curvature-correction circuit and
laser-trimmed thin-film resistors that result in a low tem-
perature coefficient of 75ppm/°C (max) and an initial
accuracy of 0.4ꢀ (max). These devices are specified
over the extended temperature range (-40°C to +85°C).
ꢀ 5mA Source Current
0ꢀ.4 maꢁ ꢂnitial Accuracꢃ
ꢀ
ꢀ Low 75ppm/°C Temperature Coefficient
ꢀ 150µA maꢁ Quiescent Supplꢃ Current
ꢀ 50mV Dropout at 1mA Load Current
These series-mode voltage references draw only 90µA of
supply current and can source 5mA and sink 2mA of load
current. Unlike conventional shunt-mode (two-terminal)
references that waste supply current and require an
external resistor, these devices offer a supply current that
is virtually independent of the supply voltage (with only a
4µA/V variation with supply voltage) and do not require an
external resistor. Additionally, these internally compensat-
ed devices do not require an external compensation
capacitor and are stable with up to 1µF of load capaci-
tance. Eliminating the external compensation capacitor
saves valuable board area in space-critical applications.
Their LDO voltage and supply-independent, ultra-low
supply current make these devices ideal for battery-oper-
ated, high-performance, low-voltage systems.
Ordering Information
PIN-
TOP
MARK
PART
TEMP. RANGE
PACKAGE
MAX6101EUR-T -40°C to +85°C 3 SOT23-3
MAX6102EUR-T -40°C to +85°C 3 SOT23-3
MAX6103EUR-T -40°C to +85°C 3 SOT23-3
MAX6104EUR-T -40°C to +85°C 3 SOT23-3
MAX6105EUR-T -40°C to +85°C 3 SOT23-3
FZGT
FZGU
FZGV
FZGW
FZGX
Note: There is a minimum order increment of 2500 pieces for
SOT packages.
The MAX6101–MAX6105 are available in tiny 3-pin
SOT23 packages.
Selector Guide
OUTPUT
VOLTAGE (V)
INPUT VOLTAGE
RANGE (V)
Applications
PART
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPSs, DMMs
Cellular Phones
MAX6101
MAX6102
MAX6103
MAX6104
MAX6105
1.250
2.500
3.000
4.096
5.000
2.5 to 12.6
(V
(V
(V
(V
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
OUT
OUT
OUT
OUT
Hard-Disk Drives
Typical Operating Circuit
Pin Configuration
+SUPPLY INPUT (SEE SELECTOR GUIDE)
TOP VIEW
IN
OUT
REFERENCE
OUT
IN
1
2
MAX6101
MAX6102
MAX6103
MAX6104
MAX6105
MAX6101
*
MAX6102
MAX6103
MAX6104
MAX6105
3
GND
OUT
1µF MAX*
GND
SOT23-3
*CAPACITORS ARE OPTIONAL.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
Continuous Power Dissipation (T = +70°C)
A
IN.........................................................................-0.3V to +13.5V
3-Pin SOT23 (derate 4.0mW/°C above +70°C)............320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT .............................................................-0.3V to (V + 0.3V)
IN
Output Short Circuit to GND or IN (V < 6V) ............Continuous
IN
Output Short Circuit to GND or IN (V ≥ 6V) .........................60s
IN
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—MAX6101, V
= 1.25V
OUT
(V = +5V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
1.255
65
UNITS
V
OUT
T
= +25°C
1.245
1.250
V
A
0°C to +70°C
Output Voltage Temperature
Coefficient (Notes 2, 3)
TCV
ppm/°C
µV/V
OUT
-40°C to +85°C
75
∆V
/
/
OUT
Line Regulation
2.5V ≤ V ≤ 12.6V
7
90
IN
∆V
IN
Sourcing: 0 ≤ I
≤ 4mA
0.7
0.03
25
0.9
3.0
OUT
∆V
OUT
∆I
OUT
Load Regulation
mV/mA
mA
Sinking: -2mA ≤ I
Short to GND
Short to IN
≤ 0
OUT
OUT Short-Circuit Current
Long-Term Stability
I
SC
25
∆V
/
/
ppm/
1000h
OUT
time
1000h at +25°C
50
Output Voltage Hysteresis
(Note 4)
∆V
OUT
cycle
130
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hꢁ to 10Hꢁ
f = 10Hꢁ to 10kHꢁ
13
15
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
/
OUT
Ripple Rejection
V
= 5V 100mV, f = 120Hꢁ
86
50
dB
µs
µF
IN
∆V
IN
Turn-On Settling Time
t
To V
= 0.1ꢀ of final value, C
= 50pF
R
OUT
OUT
Capacitive-Load Stability Range
(Note 3)
C
OUT
0
1.0
INPUT CHARACTERISTICS
Supply Voltage Range
V
Guaranteed by line-regulation test
2.5V ≤ V ≤ 12.6V
2.5
12.6
150
10
V
IN
Quiescent Supply Current
Change in Supply Current
I
IN
90
4
µA
I
/V
IN IN
µA/V
IN
2
_______________________________________________________________________________________
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6102, V
= 2.50V
OUT
(V = +5V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
2.510
65
UNITS
V
OUT
T
= +25°C
2.490
2.50
V
A
0°C to +70°C
Output Voltage Temperature
Coefficient (Notes 2, 3)
TCV
ppm/°C
µV/V
OUT
-40°C to +85°C
75
∆V
/
/
OUT
Line Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
12
300
OUT
IN
∆V
IN
Sourcing: 0 ≤ I
≤ 5mA
0.6
0.9
6.0
OUT
∆V
OUT
∆I
OUT
Load Regulation
mV/mA
mV
Sinking: -2mA ≤ I
≤ 0
0.025
OUT
V
IN
-
Dropout Voltage (Note 5)
OUT Short-Circuit Current
Long-Term Stability
I
= 1mA
50
200
OUT
V
OUT
Short to GND
Short to IN
25
25
I
mA
SC
∆V
/
/
ppm/
1000h
OUT
time
1000h at +25°C
(Note 2)
50
Output Voltage Hysteresis
(Note 4)
∆V
OUT
cycle
130
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hꢁ to 10Hꢁ
f = 10Hꢁ to 10kHꢁ
27
30
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
/
OUT
Ripple Rejection
V
= 5V 100mV, f = 120Hꢁ
86
dB
µs
µF
IN
∆V
IN
Turn-On Settling Time
t
To V
= 0.1ꢀ of final value, C = 50pF
OUT
115
R
OUT
Capacitive-Load Stability Range
(Note 3)
C
OUT
0
1.0
INPUT CHARACTERISTICS
V
OUT
0.2
+
Supply Voltage Range
V
IN
Guaranteed by line-regulation test
V
12.6
Quiescent Supply Current
Change in Supply Current
I
90
4
150
10
µA
IN
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
µA/V
OUT
IN
_______________________________________________________________________________________
3
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6103, V
= 3.0V
OUT
(V = +5V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
3.012
65
UNITS
V
OUT
T
= +25°C
2.988
3.000
V
A
0°C to +70°C
Output Voltage Temperature
Coefficient (Notes 2, 3)
TCV
ppm/°C
µV/V
OUT
-40°C to +85°C
75
∆V
/
/
OUT
Line Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
13
400
OUT
IN
∆V
IN
Sourcing: 0 ≤ I
≤ 5mA
0.5
0.9
7.0
OUT
∆V
OUT
∆I
OUT
Load Regulation
mV/mA
mV
Sinking: -2mA ≤ I
≤ 0
0.018
OUT
V
IN
-
Dropout Voltage (Note 5)
OUT Short-Circuit Current
Long-Term Stability
I
= 1mA
50
200
OUT
V
OUT
Short to GND
Short to IN
25
25
I
mA
SC
∆V
/
/
ppm/
1000h
OUT
time
1000h at +25°C
50
Output Voltage Hysteresis
(Note 4)
∆V
OUT
cycle
130
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hꢁ to 10Hꢁ
f = 10Hꢁ to 10kHꢁ
35
40
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
/
OUT
Ripple Rejection
V
= 5V 100mV, f = 120Hꢁ
76
dB
µs
µF
IN
∆V
IN
Turn-On Settling Time
t
To V
= 0.1ꢀ of final value, C = 50pF
OUT
115
R
OUT
Capacitive-Load Stability Range
(Note 3)
C
OUT
0
1.0
INPUT CHARACTERISTICS
V
OUT
0.2
+
Supply Voltage Range
V
IN
Guaranteed by line-regulation test
V
12.6
Quiescent Supply Current
Change in Supply Current
I
90
4
150
10
µA
IN
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
µA/V
OUT
IN
4
_______________________________________________________________________________________
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6104, V
= 4.096V
OUT
(V = +5V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
4.112
65
UNITS
V
OUT
T
= +25°C
4.080
4.096
V
A
0°C to +70°C
Output Voltage Temperature
Coefficient (Notes 2, 3)
TCV
ppm/°C
µV/V
OUT
-40°C to +85°C
75
∆V
/
/
OUT
Line Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
20
430
OUT
IN
∆V
IN
Sourcing: 0 ≤ I
≤ 5mA
0.5
0.9
8
OUT
∆V
OUT
∆I
OUT
Load Regulation
mV/mA
mV
Sinking: -2mA ≤ I
≤ 0
0.018
OUT
V
IN
-
Dropout Voltage (Note 5)
OUT Short-Circuit Current
Long-Term Stability
I
= 1mA
50
200
OUT
V
OUT
Short to GND
Short to IN
25
25
I
mA
SC
∆V
/
/
ppm/
1000h
OUT
time
1000h at +25°C
50
Output Voltage Hysteresis
(Note 4)
∆V
OUT
cycle
130
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hꢁ to 10Hꢁ
f = 10Hꢁ to 10kHꢁ
50
50
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
/
OUT
Ripple Rejection
V
= 5V 100mV, f = 120Hꢁ
72
dB
µs
µF
IN
∆V
IN
Turn-On Settling Time
t
To V
= 0.1ꢀ of final value, C = 50pF
OUT
190
R
OUT
Capacitive-Load Stability Range
(Note 3)
C
OUT
0
1.0
INPUT CHARACTERISTICS
V
OUT
0.2
+
Supply Voltage Range
V
IN
Guaranteed by line-regulation test
V
12.6
Quiescent Supply Current
Change in Supply Current
I
90
4
150
10
µA
IN
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
µA/V
OUT
IN
_______________________________________________________________________________________
5
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6105, V
= 5.000V
OUT
(V = +5.2V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.020
65
UNITS
V
OUT
T
= +25°C
4.980
5.000
V
A
0°C to +70°C
Output Voltage Temperature
Coefficient (Notes 2, 3)
TCV
ppm/°C
µV/V
OUT
-40°C to +85°C
75
∆V
/
/
OUT
Line Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
25
550
OUT
IN
∆V
IN
Sourcing: 0 ≤ I
≤ 5mA
0.4
0.9
10
OUT
∆V
OUT
∆I
OUT
Load Regulation
mV/mA
mV
Sinking: -2mA ≤ I
≤ 0
0.012
OUT
V
IN
-
Dropout Voltage (Note 5)
OUT Short-Circuit Current
Long-Term Stability
I
= 1mA
50
200
OUT
V
OUT
Short to GND
Short to IN
25
25
I
mA
SC
∆V
/
/
ppm/
1000h
OUT
time
1000h at +25°C
50
Output Voltage Hysteresis
(Note 4)
∆V
OUT
cycle
130
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hꢁ to 10Hꢁ
f = 10Hꢁ to 10kHꢁ
60
60
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
/
OUT
Ripple Rejection
V
= 5V 100mV, f = 120Hꢁ
65
dB
µs
µF
IN
∆V
IN
Turn-On Settling Time
t
To V
= 0.1ꢀ of final value, C = 50pF
OUT
300
R
OUT
Capacitive-Load Stability Range
(Note 3)
C
OUT
0
1.0
INPUT CHARACTERISTICS
V
OUT
0.2
+
Supply Voltage Range
V
IN
Guaranteed by line-regulation test
V
12.6
Quiescent Supply Current
Change in Supply Current
I
90
4
150
10
µA
IN
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
µA/V
OUT
IN
Note 1: Devices are 100ꢀ production tested at T = +25°C and are guaranteed by design from T = T
to T
by correlation to
MAX
A
A
MIN
sample units characteriꢁed over temperature.
Note 2: Temperature coefficient is specified by the “box” method; i.e., the maximum ∆V
is divided by the maximum ∆t.
OUT
Note 3: Not production tested. Guaranteed by design.
Note 4: Thermal hysteresis is defined as the change in +25°C output voltage before and after temperature cycling of the device
from T = T to T
.
MAX
A
MIN
Note 5: Dropout voltage is the minimum input voltage at which V
changes ≤ 0.2ꢀ from V
at V = 5.0V (V = 5.5V for
OUT IN IN
OUT
MAX6105).
6
_______________________________________________________________________________________
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
MAX6102
OUTPUT VOLTAGE TEMPERATURE DRIFT
2.497
MAX6105
SUPPLY CURRENT
vs. INPUT VOLTAGE
OUTPUT VOLTAGE TEMPERATURE DRIFT
120
100
80
60
40
20
0
5.004
5.002
5.000
4.998
4.996
4.994
4.992
4.990
2.496
2.495
2.494
2.493
2.492
2.491
3 TYPICAL PARTS
3 TYPICAL PARTS
TEMPERATURE RISING
2.490
2.489
2.488
TEMPERATURE RISING
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
2
4
6
8
10
12
14
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
MAX6102
MAX6102
DROPOUT VOLTAGE vs. SINK CURRENT
DROPOUT VOLTAGE vs. SOURCE CURRENT
SUPPLY CURRENT vs. TEMPERATURE
250
200
150
100
50
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
140
120
100
80
V
= 12V
CC
T
= +85°C
A
V
= 5V
CC
T
= -40°C
A
V
= 3.3V
CC
V
= 2.5V
CC
60
T
= +25°C
A
T
= +85°C
A
40
T
= -40°C
A
T
= +25°C
A
20
0
0
-40
-20
0
20
40
60
80
0
1
2
3
4
5
0
0.5
1.0
1.5
2.0
2.5
TEMPERATURE (°C)
SOURCE CURRENT (mA)
SINK CURRENT (mA)
MAX6102
LOAD REGULATION
MAX6105
MAX6105
DROPOUT VOLTAGE vs. SINK CURRENT
DROPOUT VOLTAGE vs. SOURCE CURRENT
8
7
250
200
150
100
50
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
T
= +85°C
T
= +85°C
A
A
6
SINK
SOURCE
5
T
= +25°C
A
4
T
= -40°C
A
T
= +25°C
A
T
A
= -40°C
3
2
T
= -40°C
A
1
T
= +85°C
A
T
= -40°C
A
0
T
= +25°C
A
T
= +85°C
A
-1
-2
T
= +25°C
A
0
-6 -4 -2
0
2
4
6
8
10 12
0
1
2
3
4
5
6
0
0.5
1.0
1.5
2.0
2.5
LOAD CURRENT (mA)
SOURCE CURRENT (mA)
SINK CURRENT (mA)
_______________________________________________________________________________________
7
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
MAX6102
LINE REGULATION
MAX6105
LINE REGULATION
MAX6105
LOAD REGULATION
5
0.25
0.20
0.15
0.10
0.05
0
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
T
= +85°C
A
4
3
SINK
SOURCE
T
= -40°C
A
T
= -40°C
A
T
= +25°C
A
2
T
= -40°C
A
T
= +85°C
T
= +25°C
A
A
1
T
= -40°C
= +25°C
A
T
A
T
= +25°C
A
0
T
= +85°C
A
-0.05
-0.10
T
= +85°C
A
-1
-0.05
-6 -4 -2
0
2
4
6
8
10 12
2
4
6
8
10
12
14
4
6
8
10
12
14
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
MAX6102
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX6105
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX6101
LINE-TRANSIENT RESPONSE
100
90
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
V
IN
200mV/div
V
OUT
200mV/div
0.001 0.01
0.1
1
10
100 1000
0.001 0.01
0.1
1
10
100 1000
100µs/div
FREQUENCY (kHz)
FREQUENCY (kHz)
MAX6105
LINE-TRANSIENT RESPONSE
MAX6102
LINE-TRANSIENT RESPONSE
OUTPUT IMPEDANCE vs. FREQUENCY
800
700
600
500
400
V
V
IN
IN
200mV/div
200mV/div
300
200
V
V
OUT
5mV/div
OUT
100mV/div
100
0
-100
0.01 0.1
1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
100µs/div
100µs/div
8
_______________________________________________________________________________________
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
MAX6101
LOAD-TRANSIENT RESPONSE
MAX6102
LOAD-TRANSIENT RESPONSE (C
= 0)
LOAD
V
V
OUT
200mV/div
OUT
200mV/div
5mA
I
OUT
4mA
5mA/div
I
OUT
5mA/div
-2mA
-2mA
200µs/div
200µs/div
MAX6105
LOAD-TRANSIENT RESPONSE (C
MAX6102
LOAD-TRANSIENT RESPONSE (C
= 0)
= 1µF)
LOAD
LOAD
V
V
OUT
200mV/div
IN
2V/div
I
OUT
5mA/div
5mA
V
OUT
50mV/div
-2mA
200µs/div
200µs/div
MAX6105
LOAD-TRANSIENT RESPONSE (C
MAX6101
TURN-ON TRANSIENT
= 1µF)
LOAD
V
V
IN
5V/div
IN
2V/div
V
OUT
50mV/div
V
OUT
00mV/div
100µs/div
100µs/div
_______________________________________________________________________________________
9
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
MAX6105
TURN-ON TRANSIENT
MAX6102
0.1Hz TO 10Hz OUTPUT NOISE
MAX6105
0.1Hz TO 10Hz OUTPUT NOISE
V
IN
2V/div
20µV/div
20µV/div
V
OUT
2V/div
100µs/div
1s/div
1s/div
Supply Current
Pin Description
The quiescent supply current of the series-mode
MAX6101 family is typically 90µA and is virtually indepen-
dent of the supply voltage, with only a 10µA/V (max) vari-
ation with supply voltage. Unlike series references,
shunt-mode references operate with a series resistor con-
nected to the power supply. The quiescent current of a
shunt-mode reference is thus a function of the input volt-
age. Additionally, shunt-mode references have to be
biased at the maximum expected load current, even if the
load current is not present at the time. In the MAX6101
family, the load current is drawn from the input voltage
only when required, so supply current is not wasted and
efficiency is maximiꢁed at all input voltages. This
improved efficiency reduces power dissipation and
extends battery life. When the supply voltage is below the
minimum specified input voltage (as during turn-on), the
devices can draw up to 400µA beyond the nominal
supply current. The input voltage source must be capable
of providing this current to ensure reliable turn-on.
PIN
1
NAME
IN
FUNCTION
Input Voltage
2
OUT
GND
Reference Output
Ground
3
Applications Information
Input Bypassing
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit. Locate the capacitor as
close to IN as possible. Where transient performance is
less important, no capacitor is necessary.
Output/Load Capacitance
Devices in the MAX6101 family do not require an output
capacitance for frequency stability. They are stable for
capacitive loads from 0 to 1µF. However, in applications
where the load or the supply can experience step
changes, an output capacitor will reduce the amount of
overshoot (undershoot) and improve the circuit’s
transient response. Many applications do not require an
external capacitor, and the MAX6101 family can offer a
significant advantage in these applications when board
space is critical.
Output Voltage Hysteresis
Output voltage hysteresis is the change of output voltage
at T = +25°C before and after the device is cycled
A
over its entire operating temperature range. Hysteresis
is caused by differential package stress appearing
across the bandgap core transistors. The typical tem-
perature hysteresis value is 130ppm.
10 ______________________________________________________________________________________
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
V
S
+2V
S
V+
V-
V
CC
IN
+REF OUTPUT
OUT
MAX681
GND
MAX6101
MAX6102
MAX6103
MAX6104
MAX6105
1M, 0.1%
V+
OUTPUT
GND
ICL7652
V-
1M, 0.1%
10nF
-2V
S
-REF OUTPUT
Figure 1. Positive and Negative References from Single +3V or +5V Supply
Turn-On Time
Chip Information
These devices typically turn on and settle to within 0.1ꢀ
TRANSISTOR COUNT: 117
of their final value in 50µs to 300µs. The turn-on time can
increase up to 1.5ms with the device operating at the
minimum dropout voltage and the maximum load.
Positive and Negative Low-Power
Voltage Reference
Figure 1 shows a typical method for developing a bipolar
reference. The circuit uses a MAX681 voltage
doubler/inverter charge-pump converter to power an
ICL7652, thus creating a positive as well as a negative
reference voltage.
______________________________________________________________________________________ 11
ICminer.com Electronic-Library Service CopyRight 2003
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Package Information
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相关型号：
MAX16020LTBM+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBR+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBS+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBT+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBW+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBY+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTBZ+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
MAX16020LTES+T
Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, ROHS COMPLIANT, TQFN-16
MAXIM
©2020 ICPDF网 联系我们和版权申明