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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：4
- 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：14-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOP
- Grade：-
- Qualification：-
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Overview
The LM339A-SR is a dual independent single- or dual-supply voltage comparator manufactured by 3PEAK. It operates within a wide supply voltage range of +2.5 V to +36 V (single) or ±1.25 V to ±18 V (dual). Key electrical specifications include a quiescent current of 150 μA per channel, a maximum input offset voltage of ±6.0 mV, and a maximum input bias current of 1 nA at 25°C. The device features an open-collector output capable of wired-AND connections and supports an operating temperature range from −40°C to 125°C.
Feature Summary
- Wide single or dual supply voltage operation with low power consumption suitable for battery applications
- Input common-mode voltage range includes ground potential even under single-supply conditions
- Open-collector outputs allow direct interfacing with TTL and CMOS logic families
Applications
- High-speed line or digital line receivers
- Peak and zero-crossing detectors
- Threshold detectors and discriminators
- Sensing circuits at ground or supply lines
Procurement Notes
Verify the specific package marking 'LM339' and SOP14 footprint against design requirements. Confirm RoHS compliance and halogen-free status as defined by the manufacturer's green product standards. Ensure ESD handling procedures meet the specified 2-kV HBM and CDM ratings during assembly.
Selection Notes
Select this component when a dual-channel comparator with ground-referenced inputs is required. The low quiescent current makes it appropriate for battery-powered systems. Verify that the open-collector output configuration aligns with the system's pull-up resistor requirements and logic level compatibility.
Part Context
This part belongs to the LM33xA series of 36-V low-power comparators. It shares architectural similarities with the LM331A and LM393A but provides four independent channels in a 14-pin package. The series is designed for general-purpose comparison tasks requiring high reliability and broad supply voltage tolerance.
Replacement Considerations
Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation.
