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ADR391 View Datasheet(PDF) - Analog Devices

Part NameADR391 ADI
Analog Devices ADI
DescriptionMicropower, Low Noise Precision Voltage References with Shutdown
ADR391 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADR390/ADR391/ADR392/ADR395
ADR390 SPECIFICATIONS
Electrical characteristics, VIN = 2.5 V to 15 V, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
OUTPUT VOLTAGE
INITIAL ACCURACY
TEMPERATURE COEFFICIENT
SUPPLY VOLTAGE HEADROOM
LINE REGULATION
LOAD REGULATION
QUIESCENT CURRENT
VOLTAGE NOISE
TURN-ON SETTLING TIME
LONG-TERM STABILITY1
OUTPUT VOLTAGE HYSTERESIS
RIPPLE REJECTION RATIO
SHORT CIRCUIT TO GND
SHUTDOWN PIN
Shutdown Supply Current
Shutdown Logic Input Current
Shutdown Logic Low
Shutdown Logic High
Symbol
VO
VO
VOERR
VOERR
VOERR
VOERR
TCVO
VIN − VO
∆VO/∆VIN
∆VO/∆ILOAD
IIN
en p-p
tR
∆VO
∆VO_HYS
RRR
ISC
Conditions
A grade
B grade
A grade
A grade
B grade
B grade
A grade: −40°C < TA < +125°C
B grade: −40°C < TA < +125°C
VIN = 2.5 V to 15 V, −40°C < TA < +125°C
ILOAD = 0 mA to 5 mA, −40°C < TA < +85°C, VIN = 3 V
ILOAD = 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 3 V
No load
−40°C < TA < +125°C
0.1 Hz to 10 Hz
1000 hours
fIN = 60 kHz
VIN = 5 V
VIN = 15 V
ISHDN
ILOGIC
VINL
VINH
Min
2.042
2.044
300
Typ
2.048
2.048
10
5
20
50
100
80
25
30
Max
2.054
2.052
6
0.29
4
0.19
25
9
25
60
140
120
140
Unit
V
V
mV
%
mV
%
ppm/°C
ppm/°C
mV
ppm/V
ppm/mA
ppm/mA
µA
µA
µV p-p
µs
ppm
ppm
dB
mA
mA
3
µA
500 nA
0.8 V
2.4
V
1 The long-term stability specification is noncumulative. The drift of subsequent 1000 hour periods is significantly lower than in the first 1000 hour period.
Rev. F | Page 3 of 20
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GENERAL DESCRIPTION
The ADR390, ADR391, ADR392, and ADR395 are precision 2.048 V, 2.5 V, 4.096 V, and 5 V band gap voltage references, respectively, featuring low power and high precision in a tiny footprint. Using ADI’s patented temperature drift curvature correction techniques, the ADR39x references achieve a low 9 ppm/°C of temperature drift in the TSOT package.

FEATURES
Compact TSOT-23-5 packages
Low temperature coefficient
   B grade: 9 ppm/°C
   A grade: 25 ppm/°C
Initial accuracy
   B grade: ±4 mV maximum
   A grade: ±6 mV maximum
Ultralow output noise: 5 µV p-p (0.1 Hz to 10 Hz)
Low dropout: 300 mV
Low supply current
   3 µA maximum in shutdown
   120 µA maximum in operation
No external capacitor required
Output current: 5 mA
Wide temperature range
    −40°C to + 125°C

 

APPLICATIONS
Battery-powered instrumentation
Portable medical instrumentation
Data acquisition systems
Industrial process controls
Automotive

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