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The LM2901Q/LM2901AQ/LM2903Q/LM2903AQ series comparators consist of four and two independent precision voltage comparators with very low input offset voltage specification. They are designed to operate from a single power supply over a wide range of voltages; however operation from split power supplies is also possible. They offer low power supply current independent of the magnitude of the power supply voltage.

The LM2901Q/LM2901AQ/LM2903Q/LM2903AQ series comparators are designed to directly interface with TTL and CMOS.

The LM2903Q/LM2903AQ dual devices are available in SO-8, MSOP8 and TSSOP-8 packages; and the LM2901Q/LM2901AQ quad devices are available in SO-14 and TSSOP-14 packages – all are in industry-standard pinouts.

All devices use “green” mold compound and have been qualified to AEC-Q100 Grade 1 and are automotive compliant, supporting PPAPs.


  • Wide Power Supply Range:
    • Single Supply: 2V to 36V
    • Dual Supplies: ±1.0V to ±18V
  • Very Low Supply Current Drain – Independent of Supply Voltage
    • LM2903Q: 0.6mA
    • LM2901Q: 0.9mA
  • Low Input Bias Current: 25nA
  • Low Input Offset Current: ±5nA
  • Typical Offset Voltage:
    • Non-A Device: 2mV
    • A Device: 1mV
  • Common-Mode Input Voltage Range Includes Ground
  • Differential Input Voltage Range Equal to the Power Supply Voltage
  • Low Output Saturation Voltage:
    • LM2903Q: 200mV at 4mA
    • LM2901Q: 100mV at 4mA
  • Output Voltage Compatible with TTL, MOS and CMOS
  • Qualified to AEC-Q100 Grade 1
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The LM2901Q/LM2901AQ/LM2903Q/LM2903AQ is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
AEC Qualified Yes
Minimum Supply Voltage (V) 2 V
Maximum Supply Voltage (V) 36 V
Supply Current @ 5V (per Op Amp) (mA) 0.9 mA
Input Offset Voltage (Typ/Max) 1 to 2 mV
Input Bias Current typ (nA) 25 nA
Minimum Input Common Mode Voltage (V) - V
Maximum Input Common Mode Voltage (V) VCC -1.5 V
Output Current Sink (mA) 16 mA
Number of Channels 4
Operating Ambient Temperature Range (°C) -40 to 125 °C
Output Type Open Collector

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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-2526 2021-06-09 2021-09-09 Additional Wafer Source (GFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Additional Assembly/Test Site (CAT)