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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：3V ~ 36V
- Voltage - Input Offset (Max)：2mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：21mA @ 5V
- Current - Quiescent (Max)：600µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：1000ns
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM393BIDR is a dual precision voltage comparator manufactured by Texas Instruments, housed in an SOIC-14 surface-mount package. It features two independent channels with open-collector outputs, designed for operation from single or split power supplies ranging from 2V to 36V. The device exhibits a typical propagation delay of 1µs and operates within a temperature range of -40°C to +85°C. Key electrical characteristics include a maximum input offset voltage of 370µV, low supply current of 800µA, and rail-to-rail common-mode input capability extending to -1.5V.
Feature Summary
- Dual differential comparators integrated into a compact SOIC-14 package
- Open-collector output structure compatible with various logic families
- Wide single-supply operating voltage range up to 36V
- Input common-mode voltage includes ground potential
Applications
- Limit detection circuits
- Simple analog-to-digital conversion
- Pulse and time delay generation
- High-voltage digital logic interfacing
Procurement Notes
Verify the specific suffix 'IDR' confirms the SOIC-14 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure pinout alignment with design schematics, as variations exist across the broader LM393 family.
Selection Notes
Select this component when high precision is required due to its low 370µV max offset voltage. It is suitable for battery-powered applications owing to its low 800µA supply current. Choose over standard versions if industrial temperature stability and wider voltage tolerance are necessary for the target environment.
Part Context
This part belongs to the LM393B series, which represents an improved version of the legacy LM393/LM2903 comparators. The 'B' designation typically indicates tighter performance specifications, such as reduced offset voltage drift, compared to standard variants. It serves as a direct replacement for older LM393 designs requiring enhanced accuracy.
Replacement Considerations
- LM393DR
- LM2903IDR
- LM193IDR
FAQ
Does the LM393BIDR support negative input voltages?
Yes, the input common-mode voltage range extends to -1.5V, allowing sensing below ground potential.
What is the maximum supply voltage for this device?
The device supports a maximum supply voltage of 36V on a single supply.
