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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8MINISO
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：18mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 105°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 LM293ST is a dual low-power voltage comparator manufactured by STMicroelectronics, housed in an 8-MiniSO surface-mount package. It operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V. Key electrical parameters include a maximum input bias current of 0.25µA at 5V, typical output current of 18mA at 5V, and maximum static current of 2.5mA. The device features open-collector/open-drain rail-to-rail outputs, a maximum input offset voltage of 5mV at 30V, and supports a wide operating temperature range from -40°C to +105°C.
Feature Summary
- Dual independent comparators designed for low power operation with wide single-supply or split power supply compatibility
- Input common-mode voltage range includes ground potential even when powered by a single supply voltage
- Outputs are compatible with various logic families including TTL, DTL, ECL, MOS, and CMOS
Applications
- Signal conditioning circuits requiring differential input comparison
- Temperature sensing systems utilizing threshold detection
- Voltage monitoring applications for power supply supervision
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging configuration. Confirm that the component meets RoHS3 compliance standards as specified in the datasheet. Check for any recent Product Change Notifications (PCN) regarding moisture barrier bag requirements or label changes before procurement.
Selection Notes
Select this component when a dual-channel comparator with ground-referenced input capability is required. Ensure the design accommodates the open-collector output structure which necessitates external pull-up resistors. Verify that the 18mA sink current capability aligns with the load requirements of the connected circuitry.
Part Context
This part belongs to the LM293 family of analog comparators, which also includes variants like the LM293D and LM293PT. These devices share core functional characteristics but differ primarily in packaging options such as SOIC-8 or TSSOP-8. The LM293ST specifically utilizes the MiniSO-8 form factor for compact surface-mount implementations.
Replacement Considerations
Publicly confirmed substitute part numbers include the LM2903DMR2G from onsemi and the LM293ADGKR from Texas Instruments.
