Home Amplifiers Comparators
Home
Amplifiers
Comparators

LM2903-Q1

ACTIVE

AEC-Q100, Grade 0 and 1, Automotive High Voltage Dual Differential Comparator

Order now
Data sheet

LM2903-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 1.3 Vs (max) (V) 30 Vs (min) (V) 2 Rating Automotive Iq per channel (typ) (mA) 0.4 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail In to V- Operating temperature range (°C) -40 to 150 Input bias current (±) (max) (nA) 50 VICR (max) (V) 30.5 VICR (min) (V) 0
Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 1.3 Vs (max) (V) 30 Vs (min) (V) 2 Rating Automotive Iq per channel (typ) (mA) 0.4 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail In to V- Operating temperature range (°C) -40 to 150 Input bias current (±) (max) (nA) 50 VICR (max) (V) 30.5 VICR (min) (V) 0
TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • 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 2kV HBM ESD for "B" device
  • Tri-Temp testing available for "B" device
  • Single supply or dual supplies
  • Low supply-current independent of supply voltage 200uA typical per comparator ("B" Versions)
  • Low input bias current 3.5nA typical ("B" device)
  • Low input offset current 0.5nA typical ("B" device)
  • Low input offset voltage ±0.37mV typical ("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
  • 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 2kV HBM ESD for "B" device
  • Tri-Temp testing available for "B" device
  • Single supply or dual supplies
  • Low supply-current independent of supply voltage 200uA typical per comparator ("B" Versions)
  • Low input bias current 3.5nA typical ("B" device)
  • Low input offset current 0.5nA typical ("B" device)
  • Low input offset voltage ±0.37mV typical ("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

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 2V to 36V, and VCC is at least 1.5V 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.

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 2V to 36V, and VCC is at least 1.5V 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.
filter Find other Comparators
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device.
TLV1822-Q1 ACTIVE Automotive, dual, micropower high-voltage open-drain comparator Upgraded rail-to-rail device with wider voltage range and improved power consumption, propagation delay and offset voltage
Pin-for-pin with same functionality to the compared device.
LM393LV-Q1 ACTIVE Automotive low-voltage commodity comparator Alternative for lower voltage range with improved performance: lower power, lower offset voltage and faster speed

Technical documentation

No results found. Please clear your search and try again.
View all 5
Top documentation Type Title Format options Date
* Data sheet LM2903-Q1 and LM2903B-Q1 Automotive Dual Comparators datasheet (Rev. M) PDF | HTML Dec 13, 2024
Application note Application Design Guidelines for LM339, LM393, TL331 Family Comparators Including the New B-versions (Rev. F) PDF | HTML Dec 12, 2024
Functional safety information LM2903-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Apr 7, 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note Designing Overcurrent protection for TPL7407L Peripheral Driver Nov 5, 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AMP-PDK-EVM — Amplifier performance development kit evaluation module

The amplifier performance development kit (PDK) is an evaluation module (EVM) kit to test common operational amplifier (op amp) parameters and is compatible with most op amps and comparators. The EVM kit offers a main board with several socketed daughtercard options to fit package needs, allowing (...)

User guide: PDF | HTML
Supported products & hardware
Simulation model

LM2903B PSpice Model (Rev. E)

SLCJ011E.ZIP (46 KB) - PSpice model
Supported products & hardware
Simulation model

LM2903B TINA-TI Spice Model (Rev. B)

SLCM014B.ZIP (10 KB) - TINA-TI Spice model
Supported products & hardware
Reference design

TIDA-00143 — Automotive 60W Brushless DC (BLDC) Motor Drive

This TIDA-00143 reference design is a BLDC motor controller and is designed to operate from a single 12V (nominal) power supply which can vary over a wide range of voltages as found in typical automotive applications.  The board is designed to drive motors in the 60W range, which require (...)

Supported products & hardware
Reference design

TIDA-01445 — Automotive High-Voltage Interlock Reference Design

This reference design is a low BOM design that has good coverage of automotive interlock connection diagnosis. In hybrid or electric vehicles (HEV/EVs), battery management systems, traction inverters, DCDC converters, onboard chargers, and other subsystems that operate at high voltages need to (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos