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ADR121 PDF даташит

Спецификация ADR121 изготовлена ​​​​«Analog Devices» и имеет функцию, называемую «(ADR121 - ADR127) Micropower LDO Voltage References».

Детали детали

Номер произв ADR121
Описание (ADR121 - ADR127) Micropower LDO Voltage References
Производители Analog Devices
логотип Analog Devices логотип 

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ADR121 Даташит, Описание, Даташиты
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Precision, Micropower LDO Voltage
References in TSOT
ADR121/ADR125/ADR127
FEATURES
Initial accuracy
A grade: ±0.24%
B grade: ±0.12%
Maximum tempco
A grade: 25 ppm/°C
B grade: 9 ppm/°C
Low dropout: 300 mV for ADR121, ADR125
High output current: +5 mA/−2 mA
Low typical operating current: 85 μA
Input range: 2.7 V to 18 V
Temperature range: −40°C to +125°C
Tiny TSOT (UJ-6) package
APPLICATIONS
Battery-powered instrumentation
Portable medical equipment
Data acquisition systems
Automotive
GENERAL DESCRIPTION
The ADR121/ADR125/ADR127 are a family of micropower,
high precision, series mode, band gap references with sink and
source capability. The parts feature high accuracy and low
power consumption in a tiny package. The ADR12x design
includes a patented temperature drift curvature correction
technique that minimizes the nonlinearities in the output
voltage vs. temperature characteristics.
PIN CONFIGURATION
NC1 1
6 NC1
ADR12x
GND 2 TOP VIEW 5 NC1
(Not to Scale)
VIN 3
4 VOUT
NC = NO CONNECT
1 MUST BE LEFT FLOATING
Figure 1.
The ADR12x is a low dropout voltage reference, requiring only
300 mV for ADR121/ADR125 and 1.45 V for ADR127 above
the nominal output voltage on the input to provide a stable
output voltage. This low dropout performance coupled with the
low 85 μA operating current makes the ADR12x ideal for
battery-powered applications.
Available in an extended industrial temperature range of −40°C
to +125°C, the ADR12x is housed in the tiny TSOT (UJ-6)
package.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.









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ADR121 Даташит, Описание, Даташиты
ADR121/ADR125/ADR127
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
ADR121 Electrical Characteristics............................................. 3
ADR125 Electrical Characteristics............................................. 4
ADR127 Electrical Characteristics............................................. 5
Absolute Maximum Ratings............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution.................................................................................. 6
REVISION HISTORY
6/06—Revision 0: Initial Version
Terminology .......................................................................................7
Typical Performance Characteristics ..............................................8
Theory of Operation ...................................................................... 16
Power Dissipation Considerations........................................... 16
Notes ............................................................................................ 16
Applications..................................................................................... 17
Basic Voltage Reference Connection ....................................... 17
Stacking Reference ICs for Arbitrary Outputs ....................... 17
Negative Precision Reference Without Precision Resistors.. 17
General-Purpose Current Source ............................................ 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 18
Rev. 0 | Page 2 of 20









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ADR121 Даташит, Описание, Даташиты
ADR121/ADR125/ADR127
SPECIFICATIONS
ADR121 ELECTRICAL CHARACTERISTICS
@ TA = 25°C, VIN = 2.8 V to 18 V, IOUT = 0 mA, unless otherwise noted.
Table 1.
Parameter
OUTPUT VOLTAGE
B Grade
A Grade
INITIAL ACCURACY ERROR
B Grade
A Grade
TEMPERATURE COEFFICIENT
B Grade
A Grade
DROPOUT (VOUT − VIN)
LOAD REGULATION
LINE REGULATION
PSRR
RIPPLE REJECTION
QUIESCENT CURRENT
SHORT-CIRCUIT CURRENT TO GROUND
VOLTAGE NOISE
TURN-ON SETTLING TIME
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS
Symbol
VO
Conditions/Comments
@ 25°C
VOERR
@ 25°C
TCVO
−40°C < TA < +125°C
VDO
ΔVOUT/ΔVIN
IQ
IOUT = 0 mA
−40°C < TA < +125°C; VIN = 3.0 V,
0 mA < IOUT < 5 mA
−40°C < TA < +125°C; VIN = 3.0 V,
−2 mA < IOUT < 0 mA
2.8 V to 18 V
IOUT = 0 mA
f = 1 Khz
f = 60 Hz
−40°C < TA < +125°C, no load
VIN = 18 V
VIN = 2.8 V
VIN = 2.8 V
VIN = 18 V
@ 25°C
f = 10 KHz
0.1 Hz to 10 Hz
To 0.1%, CL = 0.2 μF
1000 hours @ 25°C
See the Terminology section
Min Typ Max
Unit
2.497 2.5
2.494 2.5
2.503
2.506
V
V
−0.12
−0.24
+0.12
+0.24
%
%
39
15 25
300
ppm/°C
ppm/°C
mV
80 300
50 300
−50 +3 +50
−90
60
ppm/mA
ppm/mA
ppm/V
dB
dB
95 125
80 95
18
40
500
10
100
150
300
μA
μA
mA
mA
nV/√Hz
μV p-p
μs
ppm/1000 hrs
ppm
Rev. 0 | Page 3 of 20










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