Datasheet ADR391, ADR392, ADR395 (Analog Devices)

Micropower, Low Noise Precision Voltage References with Shutdown ADR391/ADR392/ADR395 FEATURES PIN CONFIGURATION Compact 5-lead TSOT package 1 5 SHDN GND ADR391/ Low temperature coefficient ADR392/ VIN 2 B grade: 9 ppm/°C ADR395
1
(Not to Scale)
00
A grade: 25 ppm/°C VOUT (SENSE) 3 4 VOUT (FORCE)
9- 41
Initial accuracy
00 Figure 1. 5-Lead TSOT (UJ Suffix)
B grade: ±4 mV maximum (ADR391) A grade: ±6 mV maximum Ultralow output noise: 5 μV p-p (0.1 Hz to 10 Hz) Table 1. Low dropout: 300 mV Output Temperature Accuracy Low supply current Model Voltage (VO) Coefficient (ppm/°C) (mV) 3 μA maximum in shutdown
ADR391B 2.5 9 ±4
140 μA maximum in operation
ADR391A 2.5 25 ±6
No external capacitor required
ADR392B 4.096 9 ±5
Output current: 5 mA
ADR392A 4.096 25 ±6
Automotive grade available
ADR395B 5.0 9 ±5
Wide temperature range: −40°C to +125°C
ADR395A 5.0 25 ±6
APPLICATIONS Battery-powered instrumentation Portable medical instrumentation Data acquisition systems Industrial process controls Automotive GENERAL DESCRIPTION
The ADR391/ADR392/ADR395 are precision 2.048 V, 2.5 V, The ADR39x family of micropower, low dropout voltage references 4.096 V, and 5 V band gap voltage references, respectively, provides a stable output voltage from a minimum supply of featuring low power and high precision in a tiny footprint. Using 300 mV above the output. Their advanced design eliminates the patented temperature drift curvature correction techniques need for external capacitors, which further reduces board space from Analog Devices, Inc., the ADR39x references achieve a and system cost. The combination of low power operation, low 9 ppm/°C of temperature drift in the TSOT package. small size, and ease of use makes the ADR39x precision voltage references ideally suited for battery-operated applications.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ADR391 ELECTRICAL CHARACTERISTICS ADR392 ELECTRICAL CHARACTERISTICS ADR395 ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION DEVICE POWER DISSIPATION CONSIDERATIONS SHUTDOWN MODE OPERATION APPLICATIONS INFORMATION BASIC VOLTAGE REFERENCE CONNECTION Stacking Reference ICs for Arbitrary Outputs A Negative Precision Reference without Precision Resistors General-Purpose Current Source High Power Performance with Current Limit CAPACITORS Input Capacitor Output Capacitor OUTLINE DIMENSIONS ORDERING GUIDE