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ADR431B View Datasheet(PDF) - Analog Devices

Part NameADR431B ADI
Analog Devices ADI
DescriptionUltralow Noise XFET® Voltage References with Current Sink and Source Capability
ADR431B Datasheet PDF : 24 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
ADR435 ELECTRICAL CHARACTERISTICS
VIN = 7.0 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 6.
Parameter
OUTPUT VOLTAGE
A Grade
B Grade
INITIAL ACCURACY1
A Grade
B Grade
TEMPERATURE COEFFICIENT
A Grade
B Grade
LINE REGULATION
LOAD REGULATION
QUIESCENT CURRENT
VOLTAGE NOISE
VOLTAGE NOISE DENSITY
TURN-ON SETTLING TIME
LONG-TERM STABILITY2
OUTPUT VOLTAGE HYSTERESIS
RIPPLE REJECTION RATIO
SHORT CIRCUIT TO GND
SUPPLY VOLTAGE OPERATING RANGE
SUPPLY VOLTAGE HEADROOM
Symbol Conditions
VO
VOERR
TCVO
∆VO/∆VIN
∆VO/∆IL
∆VO/∆IL
IIN
eN p-p
eN
tR
∆VO
VO_HYS
RRR
ISC
VIN
VIN − VO
−40°C < TA < +125°C
−40°C < TA < +125°C
VIN = 7 V to 18 V, −40°C < TA < +125°C
IL = 0 mA to 10 mA, VIN = 8 V, −40°C < TA < +125°C
IL = −10 mA to 0 mA, VIN = 8 V, −40°C < TA < +125°C
No load, −40°C < TA < +125°C
0.1 Hz to 10 Hz
1 kHz
CL = 0 μF
1000 hours
fIN = 1 kHz
Min Typ Max Unit
4.994 5.000 5.006 V
4.998 5.000 5.002 V
±6 mV
±0.12 %
±2 mV
±0.04 %
2
10 ppm/°C
1
3
ppm/°C
5
20 ppm/V
15 ppm/mA
15 ppm/mA
620 800 μA
8
μV p-p
115
nV/√Hz
10
μs
40
ppm
20
ppm
−70
dB
40
mA
7.0
18 V
2
V
1 Initial accuracy does not include shift due to solder heat effect.
2 The long-term stability specification is noncumulative. The drift in subsequent 1000 hour periods is significantly lower than in the first 1000 hour period.
Rev. J | Page 8 of 24
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GENERAL DESCRIPTION
The ADR43x series is a family of XFET voltage references featuring low noise, high accuracy, and low temperature drift performance. Using ADI’s patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, the ADR43x’s voltage change versus temperature nonlinearity is minimized.

FEATURES
Low noise (0.1 Hz to 10 Hz): 3.5 µV p-p @ 2.5 V output
No external capacitor required
Low temperature coefficient
   A Grade: 10 ppm/°C max
   B Grade: 3 ppm/°C max
Load regulation: 15 ppm/mA
Line regulation: 20 ppm/V
Wide operating range
   ADR430: 4.1 V to 18 V
   ADR431: 4.5 V to 18 V
   ADR433: 5.0 V to 18 V
   ADR434: 6.1 V to 18 V
   ADR435: 7.0 V to 18 V
   ADR439: 6.5 V to 18 V
High output current: +30 mA/−20 mA
Wide temperature range: −40°C to +125°C

APPLICATIONS
Precision data acquisition systems
High resolution data converters
Medical instruments
Industrial process control systems
Optical control circuits
Precision instruments

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