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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The BA2903F-E2 is a dual-channel analog comparator manufactured by ROHM Semiconductor, housed in an 8-SOP surface-mount package. It operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. The device features open-collector outputs capable of sourcing 16 mA per channel and draws a typical operating current of 600 µA. Key electrical specifications include a maximum input offset voltage of 7 mV, an input bias current of 250 nA, and a response time of 1.3 µs. It supports a wide operating temperature range from -40°C to +125°C.
Feature Summary
- Supports ground-sense input and output operation for low-voltage signal detection near the negative rail.
- Features open-collector outputs allowing flexible interfacing with various logic families through external pull-up resistors.
- Includes built-in electrostatic protection circuits to enhance reliability during handling and operation.
Applications
- General-purpose voltage level detection in industrial control systems
- Threshold monitoring in battery-powered devices requiring low quiescent current
- Signal conditioning for microcontroller input interfaces
Procurement Notes
Verify component authenticity through authorized distributors as the part is marked Not Recommended for New Designs (NRND). Confirm RoHS compliance status and check for alternative lead times due to potential obsolescence. Ensure the specific suffix matches required packaging formats such as tape and reel quantities.
Selection Notes
Select this component when dual comparators with ground-sensing capabilities are required within a wide supply voltage range. Consider the open-collector output structure for compatibility with different logic levels. Evaluate the 1.3 µs response time against application speed requirements and verify thermal performance within the specified temperature limits.
Part Context
This device belongs to the BA2903xx series of standard open-collector comparators. It shares functional similarities with other ROHM comparator models but is distinguished by its specific pinout and electrical characteristics in the SOP-8 package. The series is designed for general-purpose applications where cost-effective, reliable comparison is needed.
Replacement Considerations
LM2903FJ-E2 is listed as a manufacturer-recommended substitute. Verify pin compatibility and electrical parameter alignment before substitution.
FAQ
What is the input voltage range for the BA2903F-E2?
The input voltage range extends from the negative supply rail (VEE) up to the positive supply rail minus 1.5 V (VCC-1.5).
Does the BA2903F-E2 have a shutdown mode?
No, the device does not feature a shutdown mode and operates continuously when powered.
