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AS331

SINGLE DIFFERENTIAL COMPARATORS

Datasheet

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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 a wide range of voltages. Operation from a 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.

Feature(s)

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/

Application(s)

Battery chargers
Cordless telephones
Switching power supplies
DC-DC modules
PC motherboards
Communication equipment

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Standard
AEC Qualified	No
Minimum Supply Voltage (V)	2 V
Maximum Supply Voltage (V)	36 V
Supply Current @ 5V (per Op Amp) (mA)	0.4 mA
Input Offset Voltage (Typ/Max)	1 to 5 mV
Input Bias Current typ (nA)	25 nA
Minimum Input Common Mode Voltage (V)	0 V
Maximum Input Common Mode Voltage (V)	VCC -1.5 V
Output Current Sink (mA)	16 mA
Number of Channels	1
Operating Ambient Temperature Range (°C)	-40 to 85 °C
Output Type	Open Collector

Technical Documents

LIB Files

AS331..LIB.zip (699 bytes)

Recommended Soldering Techniques

TN1.pdf

Purchase & Availablity

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2709	2025-01-07	2025-04-07	Additional Wafer Source (GFAB), Die Revision, Data Sheet Change and Additional Bill of Materials (BOM)
PCN-2548	2021-10-08	2022-01-08	Additional Wafer Source (JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Assembly/Test (A/T) Site (CAT)