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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-UFDFN Exposed Pad
- Mounting Type：Surface Mount
- Supplier Device Package：8-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LM393A-DFGR is a dual independent voltage comparator from the LM393A series, manufactured by 3PEAK. It operates on a single supply of +2.5 V to +36 V or dual supplies of ±1.25 V to ±18 V. Key electrical characteristics include a very low supply current of 150 μA per channel, low input bias current with a maximum of 1 nA at 25°C, and a low offset voltage of ±6.0 mV maximum. The device features an input common-mode voltage range that includes ground and supports wired-AND output configurations via open-collector outputs. It is specified for an operating temperature range of −40°C to 125°C and provides ESD protection ratings of 2-kV HBM and 2-kV CDM.
Feature Summary
- Low power supply current drain independent of supply voltage, suitable for battery operation
- Input common-mode voltage range includes ground even when operated from a single supply
- Outputs can be connected to other open-collector outputs to achieve wired-AND relationships
- Designed to directly interface with TTL and CMOS logic levels
Applications
- High-Speed Line or Digital Line Receivers
- Peak and Zero-Crossing Detectors
- Threshold Detectors/Discriminators
- Sensing at Ground or Supply Line
Procurement Notes
Verify the specific ordering suffix DFGR corresponds to the DFN2X2-8 package and tape and reel transport media as listed in the official 3PEAK order information table. Confirm the component meets RoHS compatibility and halogen-free requirements defined by the manufacturer. Ensure design implementation accounts for the specified absolute maximum ratings and thermal resistance values for the selected package type.
Selection Notes
Select this component for applications requiring low quiescent current and wide single-supply voltage ranges. The inclusion of ground-level common-mode input capability makes it suitable for sensing circuits referenced to ground. Verify that the open-collector output structure aligns with the system's pull-up resistor requirements and logic level compatibility needs.
Part Context
This part belongs to the LM331A/LM393A/LM339A series of 36-V low-power comparators. The LM393A variant specifically contains two independent comparators on a single monolithic substrate. The series is designed for precision voltage comparison tasks where low power consumption and direct interfacing with digital logic are required.
Replacement Considerations
LM393A-SR (SOP8 package)
FAQ
What is the recommended connection for the thermal pad in the DFN2X2-8 package?
The thermal pad of the DFN2X2-8 package is recommended to be left floating or connected to the negative power supply (-VS).
How does the input common-mode voltage range behave with single supply operation?
The common-mode input voltage range includes ground even when the device is operated from a single supply voltage.
