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LM2903B-Q1

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Automotive qualified dual differential commodity comparator

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Product details

Parameters

Number of channels (#) 2 Output type Open-collector Propagation delay time (µs) 1 Vs (Max) (V) 36 Vs (Min) (V) 3 Vos (offset voltage @ 25 C) (Max) (mV) 2 Iq per channel (Typ) (mA) 0.2 Input bias current (+/-) (Max) (nA) 25 Rail-to-rail No Rating Automotive Operating temperature range (C) -40 to 125 Features Standard Comparator VICR (Max) (V) 0 VICR (Min) (V) 34.5 TI functional safety category Functional Safety-Capable open-in-new Find other Comparators

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Comparators

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 0: –40°C to 150°C ambient operating temperature range (LM2903E-Q1)
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H1C
    • Device CDM ESD classification level C4B
  • Improved 2 kV HBM ESD for "B" device
  • Single supply or dual supplies
  • Low supply-current independent of
    supply voltage 200 uA Typ Per
    comparator ("B" Versions)
  • Low input bias current 3.5 nA Typ ("B" device)
  • Low input offset current 0.5 nA Typ ("B" device)
  • Low input offset voltage ±0.37 mV Typ ("B" device)
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage ±36 V
  • Output compatible with TTL, MOS, and CMOS
  • Functional Safety-Capable

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Description

The LM2903B-Q1 device is the next generation version of the industry-standard LM2903-Q1 comparator family. This next generation family provides outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2kV ESD performance with improved negative input voltage handling and drop-in replacement convenience.

All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is within 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.

The LM2903-Q1 and LM2903B-Q1 are Qualified for the AEC-Q100 Grade 1 temperature range of -40°C to +125°C. The LM2903E-Q1 is Qualified for the AEC-Q100 Grade 0 extended temperature range of -40°C to +150°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 LM2903-Q1 and LM2903B-Q1 Automotive Dual Comparators datasheet (Rev. I) Jun. 02, 2020
Application notes LM2903B-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA May 20, 2020
Application notes Application Design Guidelines for LM339, LM393, TL331 Family Comparators (Rev. A) Feb. 11, 2020
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012

Design & development

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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
TSSOP (PW) 8 View options

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