BL3894 Precision Operational Amplifier, Quad Channel, Low Offset, SOP14 / TSSOP14

The BL3894 is a quad-channel precision operational amplifier designed for high-density, low-voltage analog signal processing. With 38µV maximum input offset voltage and low noise characteristics, it provides excellent accuracy across multiple channels.
Supporting a 1.8V to 5.5V operating voltage range, the BL3894 offers rail-to-rail input and output, maximizing dynamic range in low-supply applications. Its 1.8MHz gain bandwidth and 0.95V/µs slew rate ensure reliable performance in precision instrumentation and data acquisition systems. The device is available in SOP14 and TSSOP14 packages, ideal for compact multi-channel designs.

Key Specifications

• Channels: 4

• Noise Density: 30nV/√Hz @1kHz (Typ)

• Supply Voltage: 1.8V – 5.5V

• Gain Bandwidth (GBW): 1.8MHz

• Slew Rate: 0.95V/µs

• Quiescent Current (Iq/CH): 180µA

• Input Bias Current: 20pA

• Maximum Offset Voltage (Vos): 38µV

• Rail-to-Rail Input/Output: Yes

• Packages: SOP14, TSSOP14

Applications

• Multi-channel data acquisition systems

• Precision measurement equipment

• Industrial automation

• Sensor signal conditioning

Features

• Quad precision op-amp design

• Low offset voltage and low noise

• Rail-to-rail input/output

• Low-voltage and low-power operation

• SOP14 and TSSOP14 packages