ANALOG DEVICES ADR391 ADR392 ADR395 Micropower, Low Noise Precision Voltage References with Shutdown Data Sheet (Rev H, October 8, 2009)

Micropower, Low Noise Precision Voltage

References with Shutdown

ADR391/ADR392/ADR395 FEATURES PIN CONFIGURATION Compact 5-lead TSOT package

GNDSHDN

ADR391/

Low temperature coefficient

ADR392/ VIN B grade: 9 ppm/°C ADR395 (Not to Scale)

VOUT (SENSE) VOUT (FORCE)

A grade: 25 ppm/°C Initial accuracy

Figure 1. 5-Lead TSOT (UJ Suffix)

B grade: ±4 m V maximum (ADR391) A grade: ±6 m V maximum Ultralow output noise: 5 μV p-p (0.1 Hz to 10 Hz)

Table 1.

Low dropout: 300 m V

Output Temperature Accuracy

Low supply current

Model Voltage (VO) Coefficient (ppm/°C) (m V)

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 m A

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 m V 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.

Rev. H 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

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