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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)：7µA
- Current - Quiescent (Max)：300µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM393A-TSR is a dual independent voltage comparator from the 3PEAK LM331A/LM393A/LM339A series, housed in an 8-pin TSSOP 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 ESD protection ratings of 2-kV HBM and 2-kV CDM.
Feature Summary
- Wide supply voltage compatibility for single or split power configurations
- Low power consumption with current drain independent of supply voltage
- Input common-mode voltage range includes ground level
- Outputs compatible with TTL, DTL, ECL, MOS, and CMOS logic levels
Applications
- High-speed line or digital line receivers
- Peak and zero-crossing detectors
- Threshold detectors and discriminators
- Sensing at ground or supply line
Procurement Notes
Verify the specific ordering suffix matches the required package type, as the datasheet lists multiple variants within the LM393A family. Confirm that the procurement source provides documentation consistent with the official 3PEAK datasheet revision history. Ensure the component meets the specified environmental standards, including RoHS compliance and halogen-free status, as defined by the manufacturer's green product guidelines.
Selection Notes
Select this component when low power consumption is critical alongside wide supply voltage operation. The inclusion of ground-level sensing capability makes it suitable for single-supply applications requiring precise threshold detection. Verify that the TSSOP8 package dimensions align with the target PCB layout constraints. Consider the internal differential input voltage range equal to the supply voltage when designing circuits with high-voltage inputs.
Part Context
This part belongs to the LM331A/LM393A/LM339A series of 36-V low-power comparators manufactured by 3PEAK. The series integrates single, dual, and quad independent comparators on a monolithic substrate. The LM393A variant specifically provides two independent channels, distinguishing it from the single-channel LM331A and the quad-channel LM339A within the same functional family.
Replacement Considerations
LM393A-SR-C is listed in the order information table as a comparable SOP8 variant within the same series.
