Quad low-power commercial grade standard comparator

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Product details

Parameters

Number of channels (#) 4 Output type Open-collector Propagation delay time (µs) 1.3 Vs (Max) (V) 30 Vs (Min) (V) 5 Vos (offset voltage @ 25 C) (Max) (mV) 5 Iq per channel (Typ) (mA) 0.015 Input bias current (+/-) (Max) (nA) 25 Rail-to-rail Out Rating Catalog Operating temperature range (C) 0 to 70 Features VICR (Max) (V) 3.5 VICR (Min) (V) 0 open-in-new Find other Comparators

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 open-in-new Find other Comparators

Features

  • Wide Supply-Voltage Range . . . 3V to 30 V
  • Ultralow Power Supply Current Drain . . . 60 µA Typ
  • Low Input Biasing Current . . . 3 nA
  • Low Input Offset Current . . . ±0.5 nA
  • Low Input Offset Voltage . . . ±2 mV
  • Common-Mode Input Voltage Includes Ground
  • Output Voltage Compatible With MOS and CMOS Logic
  • High Output Sink-Current Capability
    (30 mA at VO = 2V)
  • Power Supply Input Reverse-Voltage Protected
  • Single-Power-Supply Operation
  • Pin-for-Pin Compatible With LM239, LM339, LM2901

The LP239 is obsolete and is no longer supplied.

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Description

The LP239, LP339, LP2901 are low-power quadruple differential comparators. Each device consists of four independent voltage comparators designed specifically to operate from a single power supply and typically to draw 60-µA drain current over a wide range of voltages. Operation from split power supplies is also possible and the ultralow power supply drain current is independent of the power supply voltage.

Applications include limit comparators, simple analog-to-digital converters, pulse generators, squarewave generators, time delay generators, voltage controlled oscillators, multivibrators, and high-voltage logic gates. The LP239, LP339, LP2901 were specifically designed to interface with the CMOS logic family. The ultra-low power-supply current makes these products desirable in battery-powered applications.

The LP239 is characterized for operation from –25°C to 85°C. The LP339 is characterized for operation from 0°C to 70°C. The LP2901 is characterized for operation from –40°C to 85°C.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet LP239, LP339, LP2901 datasheet (Rev. B) Sep. 22, 2004
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application notes Designing Overcurrent protection for TPL7407L Peripheral Driver Nov. 05, 2014
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012

Design & development

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Design tools & simulation

SIMULATION MODELS Download
SLCJ021.ZIP (0 KB) - PSpice Model
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PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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SPICE-based analog simulation program
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Reference designs

REFERENCE DESIGNS Download
Self-Powered AC Solid State Relay with MOSFETs Reference Design
TIDA-00377 — The self-powered AC solid state relay with MOSFETs reference design is a single relay replacement that enables efficient power management for a low-power alternative to standard electromechanical relays in thermostat applications. This SSR reference design is self-powered through the 24V AC power (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low BOM Cost AC Solid State Relay with MOSFETs Reference Design
TIDA-01064 The low BOM cost ac solid state relay with MOSFETs reference design is a single relay replacement that enables efficient power management for a low-power alternative to standard electromechanical relays in thermostat applications. This SSR reference design is the base model of the self-powered solid (...)
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CAD/CAE symbols

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PDIP (N) 14 View options
SOIC (D) 14 View options

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