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Product Detailed Parameters
- Description：IC COMP QUAD SGL SUPPLY 14SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：-
- Number of Elements：-
- Output Type：-
- Voltage - Supply, Single/Dual (±)：-
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：-
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-
- Package / Case：-
- Mounting Type：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LM239DR2G is a quad differential comparator manufactured by onsemi, housed in a 14-pin SOIC package. It operates on a single supply voltage ranging from 3.0 V to 36 V or split supplies of ±1.5 V to ±18 V. The device features an open-collector output capable of sinking up to 16 mA and driving both TTL and CMOS logic loads. Key electrical characteristics include a typical input bias current of 25 nA, a maximum input offset voltage of 5 mV at +25°C, and a response time of 1.3 µs. It functions within an ambient temperature range of -25°C to +85°C.
Feature Summary
- Supports single supply operation from 3.0 V to 36 V and split supply configurations.
- Features low input bias current and low input offset voltage for precision sensing.
- Outputs are compatible with TTL and CMOS logic families.
- Includes ESD protection clamps on inputs to enhance reliability.
Applications
- Level detection circuits
- Low-level sensing applications
- Memory applications
Procurement Notes
Verify the specific suffix 'R2' indicates tape and reel packaging when sourcing components. Confirm RoHS compliance status as required by project specifications. Ensure the operating temperature range aligns with environmental constraints. Cross-reference the ordering information to validate the manufacturer's part number against distributor listings.
Selection Notes
Select this component for designs requiring multiple independent comparators in a compact surface-mount package. Consider the open-collector output structure when designing pull-up resistor networks for interfacing with different logic voltage levels. Evaluate the power supply requirements against the wide operating voltage range to ensure stability across the intended application spectrum.
Part Context
This device belongs to the LM239 family of single-supply quad comparators produced by onsemi. It shares functional similarities with other industry-standard comparators but offers specific performance metrics tailored for consumer, automotive, and industrial electronic applications. The SOIC-14 package provides a balance between pin count and board space efficiency.
Replacement Considerations
LM239DG is available in tube packaging instead of tape and reel.
FAQ
Can the LM239DR2G handle differential input voltages larger than the supply voltage?
Yes, differential input voltages may exceed the supply voltage without damaging the inputs, provided no input goes more negative than -300 mV relative to ground.
What is the input common mode voltage range?
The input common mode voltage range extends down to ground (0 V) and up to VCC minus 1.5 V.
