AS331

Document number: DS43523 Rev. 2 - 2

1 of 10

www.diodes.com

May 2021

© Diodes Incorporated

AS331

LOW POWER LOW OFFSET VOLTAGE SINGLE COMPARATOR

Description

The AS331 consists of a single precision voltage comparator with a

typical input offset voltage of 1.0mV and high voltage gain. It is

specifically designed to operate from a single power supply over wide

range of voltages. Operation from split power supply is also possible

and the low power supply current drain is independent of the

magnitude of the power supply voltage.

The AS331 is available in the standard SOT25 package.

Features

•

Wide Supply Voltage Range



Single Supply: 2V to 36V



Dual Supplies: ±1V to ±18V

•

Low Supply Current at VCC=5V: 0.4mA

•

Low Input Bias Current: 25nA (Typical)

•

Low Input Offset Current:5nA (Typical)

•

Low Input Offset Voltage: 1mV (Typical)

•

Input Common Mode Voltage Range Includes Ground

•

Differential Input Voltage Range Equals to the Power Supply

Voltage

•

Low Output Saturation Voltage at 4mA: 200mV (Typical)

•

Open Collector Output

•

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

•

Halogen and Antimony Free. “Green” Device (Note 3)

•

For automotive applications requiring specific change

control (i.e. parts qualified to AEC-Q100/101/200, PPAP

capable, and manufactured in IATF 16949 certified facilities),

please contact us or your local Diodes representative.

https://www.diodes.com/quality/product-definitions/

Pin Assignments

Applications

•

Battery Chargers

•

Cordless Telephones

•

Switching Power Supplies

•

DC-DC Modules

•

PC Motherboards

•

Communication Equipment

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

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