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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, Open-Drain, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 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：-25°C ~ 85°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 LM293DR2G 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 supplies of ±1.0 Vdc to ±18 Vdc. The device features a low supply current of 0.4 mA, independent of the supply voltage. Input characteristics include a maximum input offset voltage of 5.0 mV and a typical input bias current of 25 nA. The output stage utilizes an open-collector configuration capable of sinking up to 16 mA, compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
Feature Summary
- Dual independent precision comparators designed for single or split supply operation
- Input common mode range extends to ground level
- Open-collector outputs compatible with various logic families
- ESD clamps integrated on inputs to increase device ruggedness
Applications
- Consumer electronics monitoring
- Automotive electronic systems
- Industrial control circuits
Procurement Notes
Verify that the ordering suffix DR2G corresponds to the SOIC-8 tape and reel packaging format specified in the manufacturer's documentation. Confirm the operating temperature range aligns with the LM293 specification (-25 °C to +85 °C) rather than other variants within the series. Ensure compliance with Pb-Free and RoHS requirements as indicated in the datasheet.
Selection Notes
Select this component when a dual comparator with ground-referenced input capability is required. The open-collector output necessitates an external pull-up resistor to interface with specific logic families. Consider the 5.0 mV maximum input offset voltage for applications requiring moderate precision without the need for chopper-stabilized amplifiers.
Part Context
This part belongs to the LMx93/LM2903 family of low offset voltage dual comparators produced by onsemi. It shares functional similarities with the LM393 and LM2903 but is distinguished by its industrial temperature rating (-25 °C to +85 °C). The 'DR2G' designation specifically identifies the SOIC-8 surface mount package with lead-free construction.
Replacement Considerations
LM393DR2G (Commercial grade, 0°C to +70°C)
FAQ
What is the maximum differential input voltage allowed?
The differential input voltage can equal the power supply voltage, up to a maximum of 36 V.
Does the input common mode voltage range include ground?
Yes, the input common mode voltage range extends to ground level during single supply operation.
