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Product Detailed Parameters
- Description：GENERAL PURPOSE COMPARATOR, OPEN
- Series：-
- Mfr：3PEAK
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Differential
- Number of Elements：2
- Output Type：Open-Collector, CMOS, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 36V, ±1.25V ~ 18V
- Voltage - Input Offset (Max)：6mV @ 5V
- Current - Input Bias (Max)：0.001µA @ 5V
- Current - Output (Typ)：10mA
- Current - Quiescent (Max)：300µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The LM393A-SR is a dual independent voltage comparator from the 3PEAK LM331A/LM393A/LM339A series, housed in an SOP8 package. It operates on a wide single-supply range of +2.5 V to +36 V or dual supplies of ±1.25 V to ±18 V. Key electrical specifications include a quiescent current of 150 μA per channel, a maximum input bias current of 1 nA at 25°C, and a maximum input offset voltage of ±6.0 mV. The device supports an operating temperature range from −40°C to 125°C and features an open-collector output capable of wired-AND connections.
Feature Summary
- Wide supply voltage compatibility for both single and split power configurations
- Low power consumption with supply current independent of voltage levels
- Input common-mode voltage range includes ground potential
- Outputs compatible with TTL and CMOS logic families
Applications
- High-speed line or digital line receivers
- Peak and zero-crossing detectors
- Threshold detectors and discriminators
- Sensing applications at ground or supply lines
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel quantity. Ensure the selected variant matches the required operating temperature range and ESD protection ratings for the intended environment. Cross-reference the datasheet revision history to confirm pinout consistency and any updates to absolute maximum ratings before finalizing procurement orders.
Selection Notes
Select this component when low power consumption is critical alongside precise voltage comparison capabilities. The inclusion of ground-level common-mode input range makes it suitable for single-supply systems interfacing with sensors near zero volts. Verify that the open-collector output configuration aligns with the system's pull-up requirements and logic level compatibility needs.
Part Context
This part belongs to the LM393A family of low-power comparators manufactured by 3PEAK. It shares core architectural features with the LM331A and LM339A series but is distinguished by its dual-channel configuration and SOP8 surface-mount packaging. The device is designed for general-purpose signal conditioning and threshold detection in consumer and industrial electronics.
Replacement Considerations
LM393A-SR-C is listed as a related variant within the same product family.
