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Exact equivalent in functionality and parametrics to the compared device:
LM2903B ACTIVE Dual industrial grade standard comparator Pin-to-pin upgrade with increased performance with a wider voltage range.
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Product details

Parameters

Number of channels (#) 2 Output type Open-collector Propagation delay time (µs) 1.3 Vs (Max) (V) 30 Vs (Min) (V) 2 Vos (offset voltage @ 25 C) (Max) (mV) 7 Iq per channel (Typ) (mA) 0.4 Input bias current (+/-) (Max) (nA) 50 Rail-to-rail Out Rating Catalog Operating temperature range (C) -40 to 125 Features Standard comparator VICR (Max) (V) 28.5 VICR (Min) (V) 0 open-in-new Find other Comparators

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 SOP (PS) 8 48 mm² 6.2 x 7.8 TSSOP (PW) 8 19 mm² 3 x 6.4 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Comparators

Features

  • NEW LM393B and LM2903B
  • 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 LM393B
    • Available in tiny 2 x 2mm WSON package
  • B-version is drop-in replacement for LM293, LM393 and LM2903, 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

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Description

The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM393B and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both "A" and "V" grades.

All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage.

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Same functionality and pinout but is not an equivalent to the compared device:
NEW LM393LV ACTIVE 1.65-V to 5.5-V, low voltage dual commodity comparator Optimized for low-voltage (5.5-V) operation

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AE) Oct. 07, 2020
Application note Application Design Guidelines for LM339, LM393, TL331 Family Comparators (Rev. A) Feb. 11, 2020
Application note How to Implement Comparators for Improving Performance of Rotary Encoders in Ind Jul. 03, 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Tripping Point: Simplifying circuit breaker design using delta-sigma ADCs Aug. 10, 2016
Application note 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 MODEL Download
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Features
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TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

Reference designs

Many TI reference designs include the LM2903 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SO (PS) 8 View options
SOIC (D) 8 View options
TSSOP (PW) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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