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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)：5mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：400ns (Typ)
- 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 BA2903WF-E2 is a dual-channel ground-sense analog comparator manufactured by ROHM Semiconductor. It features an open-collector output and operates within a supply voltage range of +2.0V to +36.0V (single) or ±1.0V to ±18.0V (split). The device specifies a maximum input offset voltage of 2mV, a typical response time of 1.3µs, and a supply current of 0.6mA. It supports an operating temperature range from -40°C to +125°C and is housed in an SOP-8 package.
Feature Summary
- Low input offset voltage for high precision comparison
- Ground sense operation allowing inputs and outputs near VEE
- Wide operating supply voltage range compatible with single or split supplies
Applications
- General use signal comparison
- Current monitoring circuits
- Battery level monitoring
- Multivibrator configurations
Procurement Notes
Verify the component status as Not Recommended for New Designs (NRND) before implementation. Confirm that the specific ordering suffix matches the required packaging format, such as embossed tape and reel. Ensure compatibility with existing PCB footprints for the SOP-8 package. Check for RoHS compliance documentation if environmental regulations apply to the target assembly process.
Selection Notes
Select this component when low input offset voltage is critical for accuracy compared to standard general-purpose comparators. Verify that the open-collector output architecture aligns with the system's pull-up requirements. Consider the wide supply voltage range for flexibility in power design. Evaluate thermal dissipation capabilities relative to the expected ambient temperature conditions.
Part Context
This part belongs to the BA2903 series of high-reliability dual comparators. It shares pinouts and basic functionality with variants like the BA2903F and BA2903SF but distinguishes itself through reduced input offset voltage specifications. The series is designed for applications requiring robust performance across extended industrial temperature ranges.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material.
