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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：4
- Output Type：CMOS, DTL, ECL, MOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 32V, ±1V ~ 16V
- Voltage - Input Offset (Max)：5mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 105°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SO
- Grade：-
- Qualification：-
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Overview
The LM239DT is a low-power quad voltage comparator manufactured by STMicroelectronics, housed in a 14-pin SOIC surface-mount package. It features four independent precision comparators with an offset voltage specification as low as 5 mV. The device operates from a single power supply ranging from 2 V to 36 V or split supplies of ±1 V to ±18 V. Key electrical parameters include a typical response time of 1.3 µs, a maximum operating temperature of +105 °C, and a minimum operating temperature of -40 °C. The input common-mode voltage range includes ground even when operated from a single supply.
Feature Summary
- Input common-mode voltage range includes ground during single-supply operation
- Outputs compatible with TTL, DTL, ECL, MOS, and CMOS logic families
- Differential input voltage range equals the total supply voltage
Applications
- Automation and process control systems
- Sensor signal conditioning and instrumentation
- On-off control circuitry
Procurement Notes
Verify the specific suffix 'DT' confirms the 14-SOIC surface-mount package and commercial grade specifications. Confirm RoHS compliance status for the specific manufacturing batch. Ensure the ordering quantity matches the required tape-and-reel or cut-tape format provided by the distributor. Cross-reference the manufacturer part number with the distributor's unique identifier to prevent substitution errors.
Selection Notes
Select this component when a quad comparator configuration is required within a compact surface-mount footprint. It is suitable for designs needing wide single-supply voltage flexibility without requiring negative rails. Consider the 1.3 µs response time for applications where moderate speed is sufficient. Verify that the open-collector output type aligns with the pull-up requirements of the downstream logic interface.
Part Context
This part belongs to the LM239 family of low-power quad voltage comparators. The family shares core architectural features but varies in package types such as PDIP, TSSOP, and QFN, as well as performance grades like the LM239A. The DT suffix specifically denotes the standard industrial-grade version in a small-outline integrated circuit package.
Replacement Considerations
- LM239ADT
- LM239APT
- LM239QT
