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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：7mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM2903VDR2G is a dual independent precision voltage comparator manufactured by onsemi, housed in an SOIC-8 surface-mount package. It supports wide single-supply operation from 2.0 Vdc to 36 Vdc and split-supply ranges of ±1.0 Vdc to ±18 Vdc. The device features low input offset voltage with a maximum of 7.0 mV at 25°C and up to 15 mV across the extended temperature range. It draws very low current drain, typically 0.4 mA, independent of supply voltage. The output stage provides open-collector compatibility with DTL, ECL, TTL, MOS, and CMOS logic levels.
Feature Summary
- Dual independent precision voltage comparators capable of single or split supply operation
- Low input offset voltage specifications for high accuracy applications
- Very low current drain that remains independent of supply voltage
- Output voltage compatible with various logic families including DTL, ECL, TTL, MOS, and CMOS
Applications
- Consumer electronics signal processing
- Automotive sensing and instrumentation
- Industrial electronics control circuits
Procurement Notes
Verify the specific suffix 'V' indicates the -40°C to +125°C operating temperature range distinct from standard variants. Confirm the 'DR2G' suffix corresponds to the SOIC-8 tape and reel packaging format. Ensure compliance with RoHS and Pb-Free requirements as stated in the ordering information. Cross-reference the datasheet revision date against manufacturing lot codes for traceability.
Selection Notes
Select this component when extended industrial temperature performance up to 125°C is required compared to standard commercial grades. The open-collector output necessitates external pull-up resistors for proper logic level interfacing. Consider the low input bias current for high-impedance sensor interfaces. Verify power dissipation limits within the SOIC-8 thermal constraints during design.
Part Context
This part belongs to the LM393 series family, which includes variants like LM2903 and LM393. The 'V' designation specifically denotes the extended temperature grade (-40°C to +125°C), differentiating it from the LM2903 (up to 105°C) and LM393 (up to 70°C). All variants share identical electrical characteristics but differ in thermal endurance and qualification standards.
Replacement Considerations
LM2903DR2G: Identical electrical specs but limited to +105°C max operating temperature.
FAQ
What is the maximum differential input voltage allowed?
The differential input voltage can equal the power supply voltage, up to 36 V, without damaging the inputs.
Does the input common mode range include ground?
Yes, the devices are designed to permit a common mode range down to ground level with single supply operation.
