Model：OPA2189IDGKR

Manufacturer：Texas Instruments

Stocks：1800

Describe：The OPA2189IDGKR is a dual-channel, high-precision, ultra-low-noise, zero-drift operational amplifier introduced by Texas Instruments, packaged in a VSSOP-8 miniature surface-mount package. Designed using CMOS technology, this device features a unique MUX-friendly input architecture and rail-to-rail output capability, optimized for precision measurement and multi-channel data acquisition applications. Key features of this op-amp include a zero-drift architecture that achieves a low offset voltage drift of just 0.005 μV/°C, with a maximum offset voltage of only 3 μV, enabling high precision without calibration. It offers a gain-bandwidth product of 14 MHz and a slew rate up to 20 V/μs, achieving a 0.01% settling time of just 1.1 μs for a 10 V step signal, meeting the demands of high-speed signal conditioning. The device operates from a single supply of 4.5V to 36V or dual supplies of ±2.25V to ±18V, with a typical quiescent current of 1.3mA per channel and an output current capability of up to 65mA. Its MUX-friendly input architecture prevents surge currents caused by large differential voltages during multiplexer switching, ensuring fast settling and system stability. With an operating temperature range of -40°C to +125°C, it is suitable for industrial and automotive applications.