LM2903B-Q1

ACTIVE

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) 2 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 SOT-23-THN (DDF) 8 8 mm² 2.9 x 2.8 TSSOP (PW) 8 19 mm² 3 x 6.4 VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (DSG) 8 4 mm² 2 x 2 WSON (DSG) 8 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 drop-in replacement convenience.

All devices consist of two independent voltage comparators that are designed to operate 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. The outputs can be connected to other open-collector outputs.

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 Grade 0 extended temperature range of -40°C to +150°C.

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NEW LM393LV-Q1 ACTIVE Automotive low-voltage commodity comparator Optimized for low-voltage (5.5 V) operation

Technical documentation

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Type Title Date
* Data sheet LM2903-Q1 and LM2903B-Q1 Automotive Dual Comparators datasheet (Rev. J) Nov. 18, 2020
Functional safety information LM2903B-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA May 20, 2020
Application note Application Design Guidelines for LM339, LM393, TL331 Family Comparators (Rev. A) Feb. 11, 2020

Design & development

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Hardware development

EVALUATION BOARD Download
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Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

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Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
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Description
The DUAL-DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is designed specifically for dual package op amps in the (...)
Features
  • 10 circuit configurations to choose from: Non-Inverting, Inverting, Active Filters, Difference Amplifier with Reference Buffer, and more!
  • Multiple interface options: SMA, Header, Breadboard, Wire
  • Designed for 0805 size components; 0603 size friendly
  • Circuit schematic provided in silkscreen on the back (...)
EVALUATION BOARD Download
SMALL-AMP-DIP-EVM
SMALL-AMP-DIP-EVM
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Description
The Small-Amp-DIP-EVM speeds up small package op amp prototyping by providing a fast and easy way to interface with many industry-standard small-size packages. The Small-Amp-DIP-EVM supports 8 small package options including: DPW-5 (X2SON), DSG-8 (WSON), DCN-8 (SOT), DDF-8 (SOT), RUG-10 (X2QFN (...)
Features
  • Simplifies prototyping of small package ICs
  • Supports 8 small package types

Design tools & simulation

SIMULATION MODEL Download
SLCJ011A.ZIP (49 KB) - PSpice Model
SIMULATION MODEL Download
SLCM014.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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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 (...)
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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23-THIN (DDF) 8 View options
TSSOP (PW) 8 View options
VSSOP (DGK) 8 View options
WSON (DSG) 8 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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