High precision, low noise, zero drift, rail-to-rail output operational amplifier 'OPA189'
The settling time is fast, adopting a MUX-friendly architecture and a controlled startup system. The OPA189 has excellent AC performance, with an offset voltage of only 0.4µV and a drift coefficient of 0.005µV/°C across the entire temperature range. The MUX-friendly input architecture prevents inrush current when applying large input differential voltages, improves settling performance in multi-channel systems, and provides robust ESD protection during transport, handling, and assembly. The operating temperature range is -40°C to +125°C, and the package is an 8-pin SOIC. It is ideal for high-precision measurement instruments, signal measurement, and active filter processing applications.
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basic information
■ Extremely high accuracy * Zero drift: 0.005μV/℃ * Very low offset voltage: 3μV (maximum value) ■ Excellent DC accuracy * CMRR: 168dB * Open-loop gain: 170dB ■ Low noise * en at 1kHz: 5.2nV/√Hz * Noise from 0.1Hz to 10Hz: 0.1μVPP ■ Excellent dynamic performance * Gain bandwidth: 14MHz * Slew rate: 20V/μs * Fast settling: 10V step, 1.1μs to 0.01% ■ Robust design * MUX-friendly input * RFI/EMI filtering on input ■ Wide power supply voltage range: 4.5V to 36V ■ Quiescent current: 1.7mA (maximum value) ■ Rail-to-rail output ■ Includes negative rail in input
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Applications/Examples of results
High-precision measuring instruments, signal measurement, active filter processing, bridge amplifiers, strain gauges, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
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