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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)：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：0°C ~ 70°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 LM393DR2G is a dual independent precision voltage comparator manufactured by onsemi, housed in an SOIC-8 surface-mount package. It supports single supply operation from 2.0 Vdc to 36 Vdc and split supply ranges of ±1.0 Vdc to ±18 Vdc. The device features very low current drain of 0.4 mA, independent of supply voltage. Electrical characteristics include a maximum input offset voltage of 5.0 mV, input bias current of 25 nA, and input offset current of 5.0 nA at 25 °C. The output sink current reaches 16 mA with a response time of 1.5 µs.
Feature Summary
- Dual independent precision voltage comparators capable of single or split supply operation
- Input common mode range extends to ground level for single supply applications
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
- ESD clamps on inputs increase device ruggedness without affecting performance
Applications
- Consumer electronics
- Automotive electronics
- Industrial electronics
Procurement Notes
Verify the specific suffix DR2G corresponds to the SOIC-8 tape and reel packaging configuration. Confirm the operating temperature range aligns with commercial requirements (0 °C to +70 °C). Ensure compliance with RoHS standards and lead-free specifications as documented in the ordering information section of the datasheet.
Selection Notes
Select this component when low power consumption is critical due to its supply-independent current drain. The wide differential input voltage range allows operation even if one input exceeds the supply rail. Verify that the open-collector output configuration meets the system's logic interface requirements and pull-up resistor needs.
Part Context
This part belongs to the LM393 series of low offset voltage dual comparators produced by onsemi. It shares functional similarities with the LM293, LM2903, and NCV2903 variants, differing primarily in temperature ratings and automotive qualification status. The DR2G designation specifically identifies the commercial grade version in SOIC-8 tape and reel packaging.
Replacement Considerations
LM2903DR2G
FAQ
What is the maximum differential input voltage allowed?
The differential input voltage range is equal to the power supply voltage.
Does the input bias current change with the output state?
No, due to PNP transistor inputs, the bias current flows out of the inputs and remains essentially constant regardless of the output state.
