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BA2904SF-E2
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Product Detailed Parameters
- Description：IC OPAMP GP 2 CIRCUIT 8SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：General Purpose
- Number of Circuits：2
- Output Type：-
- Slew Rate：0.2V/µs
- Gain Bandwidth Product：500 kHz
- Current - Input Bias：20 nA
- Voltage - Input Offset：2 mV
- Current - Supply：500µA
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：3 V
- Voltage - Supply Span (Max)：32 V
- Operating Temperature：-40°C ~ 105°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：8-SOP
- -3db Bandwidth：-
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Overview
The BA2904SF-E2 is a dual-channel ground sense operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of 3 V to 36 V and features a gain-bandwidth product of 500 kHz with a slew rate of 200 mV/us. Key electrical parameters include an input offset voltage of 2 mV, input bias current of 20 nA, and output current capability of 30 mA per channel. The device exhibits a common-mode rejection ratio of 50 dB and input voltage noise density of 40 nV/sqrt Hz. It is housed in an SOP-8 package and supports operating temperatures from -40 C to +105 C.
Feature Summary
- Supports ground sense operation allowing input and output voltages to approach the negative supply rail.
- Designed for wide single-supply voltage operation ranging from 3 V to 32 V.
- Features low power consumption suitable for battery-powered applications.
Applications
- General-purpose analog signal processing circuits
- Sensor interface amplification
- Portable electronic devices requiring low power consumption
Procurement Notes
Verify the component status as Not Recommended for New Designs (NRND) before finalizing any design implementation. Confirm that the SOP-8 package dimensions and pinout match your PCB footprint requirements. Ensure the operating temperature range of -40 C to +105 C aligns with your environmental specifications. Check for RoHS compliance details in the official datasheet prior to procurement.
Selection Notes
Select this component when a dual-channel op-amp with ground-sense capabilities is required for single-supply systems. Consider the 500 kHz bandwidth and 200 mV/us slew rate for moderate-speed signal conditioning tasks. Evaluate the 20 nA input bias current for high-impedance sensor interfaces. Compare against other members of the BA2904S series if different packaging or specific parameter tolerances are needed.
Part Context
This part belongs to the BA2904S series of ground sense operational amplifiers from ROHM Semiconductor. The series is characterized by wide supply voltage ranges and low quiescent current. The BA2904SF-E2 specifically denotes the SOP-8 surface-mount variant. It serves as a general-purpose solution for applications where inputs and outputs must swing close to the ground potential.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative dual-channel ground-sense amplifiers from ROHM or other manufacturers based on pinout and electrical specifications.
