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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14TSSOP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：4
- Output Type：CMOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±)：3V ~ 36V, ±1.5V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 5V
- 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：14-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM239DTBR2G is a single-supply quad comparator manufactured by onsemi, housed in a TSSOP-14 package. It operates within a supply voltage range of 3.0 V to 36 V or split supplies of ±1.5 V to ±18 V. The device features four independent precision-voltage comparators with an input common-mode voltage range that includes ground. Key electrical characteristics include a typical response time of 1.3 µs, an input bias current of 25 nA, and an output sink current capability of 16 mA. It functions reliably across an ambient temperature range of -25°C to +85°C.
Feature Summary
- Supports single-supply operation from 3.0 V to 36 V or dual supplies up to ±18 V
- Input common-mode voltage range extends to ground potential
- Outputs are compatible with TTL, DTL, ECL, MOS, and CMOS logic families
- Includes internal ESD protection on inputs to enhance reliability
Applications
- Level detection circuits
- Low-level sensing applications
- Memory applications
- Consumer electronic systems
- Automotive and industrial electronics
Procurement Notes
Verify the specific suffix 'R2G' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the component meets RoHS compliance standards and is lead-free as indicated by the manufacturer's ordering information. Ensure the operating temperature range aligns with the system's environmental requirements before finalizing procurement specifications.
Selection Notes
Select this component when designing circuits requiring multiple independent comparators powered by a single supply rail. The wide input common-mode range allows signal processing near ground without additional level shifting. Consider the 1.3 µs response time for timing-sensitive applications and ensure output loading remains within the specified sink current limits to maintain proper logic levels.
Part Context
This device belongs to the LM239 family of single-supply quad comparators produced by onsemi. It shares architectural similarities with the LM339 and LM2901 series but is optimized for commercial temperature ranges. The TSSOP-14 package provides a compact surface-mount solution suitable for space-constrained designs in modern electronic equipment.
Replacement Considerations
LM239DT (SOIC-14 package)
FAQ
Can the input common-mode voltage reach ground?
Yes, the input common-mode voltage range includes ground even when operated from a single power supply voltage.
What is the maximum differential input voltage?
The differential input voltage range can equal the supply voltage without damaging the inputs.
