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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8MINISO
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- 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)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-MiniSO
- Grade：-
- Qualification：-
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Overview
The LM393ST is a dual voltage comparator integrated circuit manufactured by ROHM Semiconductor, housed in an 8-pin MiniSO package. It operates on a single supply of +2V to +36V or dual supplies of ±1V to ±18V. Key electrical characteristics include a typical supply current of 0.4mA, input bias current of 25nA, and input offset voltage of 1mV at 25°C. The device supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Integrates two independent high-gain comparators within a compact surface-mount package.
- Features open-collector outputs compatible with various logic families including TTL and CMOS.
- Supports ground-sense input common-mode voltage ranges while operating from single power supplies.
Applications
- Consumer Electronics
- Current Sense Application
- Battery Monitor
- Multivibrator
Procurement Notes
Verify the specific manufacturer designation for the LM393ST, as this part number appears across multiple vendors including STMicroelectronics and ROHM. Confirm that the received component matches the intended datasheet specifications regarding package dimensions and electrical parameters before integration into production designs.
Selection Notes
Select this component when a low-power, dual-channel comparator is required for applications involving wide voltage swings. Ensure the design accommodates the open-collector output structure by providing appropriate external pull-up resistors. Verify thermal dissipation requirements if operating near maximum ratings.
Part Context
This device belongs to the LM393xxx family of monolithic ICs which integrate two independent comparator circuits. It shares functional similarities with the LM2903xx, LM339xx, and LM2901xx series, differing primarily in temperature ranges and channel counts. The MiniSO8 package provides a space-efficient solution for modern electronic assemblies.
Replacement Considerations
LM2903DT (Industrial grade variant)
FAQ
What is the input common-mode voltage range?
The input common-mode voltage range extends from 0V to Vcc+ minus 1.5V under standard conditions.
How does the output configuration function?
The outputs are open-collector type, requiring an external pull-up resistor to define the high logic level.
