BL321L – Low Voltage Rail-to-Rail Operational Amplifier, 1MHz, SOT23-5

The BL321L is a low-voltage general-purpose operational amplifier designed for low-power and cost-sensitive analog applications. It features rail-to-rail input and output, enabling maximum signal swing even at low supply voltages.
Operating from 2.1V to 5.5V, the BL321L delivers a 1MHz gain bandwidth, 0.6V/µs slew rate, and low quiescent current of only 40µA per channel, making it ideal for battery-powered systems. With low noise performance of 27nV/√Hz @1kHz and compact SOT23-5 packaging, it is well suited for space-constrained designs.

Key Specifications

• Channels: 1

• Supply Voltage: 2.1V – 5.5V

• Gain Bandwidth (GBW): 1MHz

• Slew Rate: 0.6V/µs

• Noise Density: 27nV/√Hz @1kHz

• Quiescent Current: 40µA / Channel

• Input Bias Current: 1pA

• Max Input Offset Voltage: 3.5mV

• Rail-to-Rail Input/Output: Yes

• Package: SOT23-5

Applications

• Portable and battery-powered devices

• Sensor signal conditioning

• Audio pre-amplifiers

• Consumer electronics

Features

• Low operating voltage

• Ultra-low power consumption

• Rail-to-rail input and output

• Compact SOT23-5 package