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Precision quad differential comparator, industrial grade

LM239ADR General Description

This quad voltage comparator offers four independent comparators in a single package, each with its own inputs and outputs. The fast response time of the LM239ADR makes it an efficient choice for systems requiring quick decision-making. Additionally, its open collector outputs provide easy connectivity with other devices, allowing for seamless integration into larger electronic systems

Key Features

  • NEW LM339B and LM2901B
  • Improved specifications of B-version
    • Maximum rating: up to 38 V
    • ESD rating (HBM): 2k V
    • Low input offset: 0.37 mV
    • Low input bias current: 3.5 nA
    • Low supply-current: 200 µA per comparator
    • Faster response time of 1 µsec
    • Extended temperature range for LM339B
  • B-version is drop-in replacement for LM239, LM339 and LM2901, A and V versions
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage: ±38 V
  • Low output saturation voltage
  • Output compatible with TTL, MOS, and CMOS
  • For single version, see the TL331B
  • For dual version, see the LM393B or LM2903B


Number of channels 4 Output type Open-collector
Propagation delay time (µs) 1.3 Vs (max) (V) 36
Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 3
Iq per channel (typ) (mA) 0.2 Input bias current (±) (max) (nA) 50
Rail-to-rail Out Rating Catalog
Operating temperature range (°C) -25 to 85 Features Standard comparator
VICR (max) (V) 34.5 VICR (min) (V) 0

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In Stock: 5,939

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50+ $0.152 $7.60
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2500+ $0.110 $275.00
5000+ $0.104 $520.00

The prices below are for reference only.