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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tube,Tube
- 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 LM293DG is a dual precision voltage comparator from onsemi, housed in an SOIC-8 package. It operates within a wide single-supply range of 2.0 Vdc to 36 Vdc or split supplies of ±1.0 Vdc to ±18 Vdc. The device features a low input offset voltage of up to 5.0 mV and a very low current drain of 0.4 mA. It supports open-collector outputs compatible with various logic levels and includes ESD protection on inputs. The operating temperature range spans from -25 °C to +85 °C.
Feature Summary
- Dual independent precision comparators designed for single or split supply operation
- Input common mode range extends to ground level
- Differential input voltage range equals the power supply voltage
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
Applications
- Consumer electronics
- Automotive applications
- Industrial electronics
Procurement Notes
Verify the specific suffix 'DG' corresponds to the SOIC-8 package and the -25 °C to +85 °C temperature range as defined in the ordering information. Confirm RoHS compliance and Pb-Free status by checking the datasheet marking diagram and ordering details. Ensure the application environment stays within the specified maximum ratings to prevent damage.
Selection Notes
Select this component when high gain and wide bandwidth are required for precise voltage comparison tasks. Consider the LM293DG over other series members if the -25 °C to +85 °C industrial temperature range is necessary. Verify that the open-collector output configuration aligns with the downstream logic requirements and pull-up resistor needs.
Part Context
This part belongs to the LM393 series family, which includes variants like LM393, LM2903, and NCV2903. These devices share similar electrical characteristics but differ in temperature ranges and automotive qualification. The LM293DG specifically targets industrial environments requiring extended low-temperature performance compared to the standard commercial LM393.
Replacement Considerations
LM2903DG offers extended temperature range (-40 °C to +105 °C). LM393DG provides commercial grade (0 °C to +70 °C). LM2903VDG supports extended high temperatures (-40 °C to +125 °C). All share the same pinout and general functionality.
