BL321 – Medium Voltage General Operational Amplifier, 25V Supply, SOT23-5

The BL321 is a medium-voltage general-purpose operational amplifier designed for applications requiring higher operating voltage and robust analog performance. It supports a wide 4.0V to 25V power supply range, making it suitable for industrial and control systems where standard low-voltage op-amps are insufficient.
With 90dB CMRR, 85dB PSRR, and a 1MHz gain bandwidth, the BL321 ensures stable and accurate signal amplification. It consumes 430µA quiescent current per channel and offers reliable performance in cost-sensitive designs. The compact SOT23-5 package enables easy integration into space-constrained layouts.

Key Specifications

• Channels: 1

• Supply Voltage: 4.0V – 25V

• Gain Bandwidth (GBW): 1MHz

• CMRR: 90dB

• PSRR: 85dB

• Quiescent Current: 430µA / Channel

• Input Bias Current: 45nA

• Max Input Offset Voltage: 5.0mV

• Rail-to-Rail Input/Output: No

• Package: SOT23-5

Applications

• Industrial signal conditioning

• Power monitoring circuits

• Control and automation systems

• General analog amplification

Features

• Wide operating voltage up to 25V

• High CMRR and PSRR

• Stable 1MHz bandwidth

• Compact SOT23-5 package