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OPA189IDBVT Datasheet(PDF) 1 Page - Texas Instruments |
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OPA189IDBVT Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 52 page  OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz, MUX-Friendly, Rail-to-Rail Output Operational Amplifiers 1 Features • Ultra-high precision: – Zero-drift: 0.005 μV/°C (OPA189) – Ultra-low offset voltage: 3 μV maximum (OPA189) • Excellent dc precision: – CMRR: 168 dB – Open-loop gain: 170 dB • Low noise: – en at 1 kHz: 5.2 nV/√Hz – 0.1-Hz to 10-Hz noise: 0.1 µVPP • Excellent dynamic performance: – Gain bandwidth: 14 MHz – Slew rate: 20 V/µs – Fast settling: 10-V step, 0.01% in 1.1 µs • Robust design: – MUX-friendly inputs – RFI/EMI filtered inputs • Wide supply range: 4.5 V to 36 V • Quiescent current: 1.7 mA (maximum) • Rail-to-rail output • Input includes negative rail 2 Applications • Battery test • Analog input module • Weigh scale • DC power supply, ac source, electronic load • Multifunction relay 3 Description The OPA189, OPA2189, and OPA4189 (OPAx189) high-precision operational amplifiers are ultra-low noise, fast-settling, zero-drift devices that provide rail- to-rail output operation and feature a unique MUX- friendly architecture and controlled start-up system. These features and excellent ac performance, combined with only 0.4 µV of offset voltage and 0.005µV/°C of drift over temperature for the single- channel version, make the OPAx189 a great choice for precision instrumentation, signal measurement, and active filtering applications. Moreover, the MUX- friendly input architecture prevents inrush current when applying large input differential voltages, which improves settling performance in multichannel systems, all while providing robust ESD protection during shipment, handling, and assembly. All versions are specified from –40°C to +125°C. Device Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) OPA189 SOIC (8) 4.90 mm × 3.90 mm SOT-23 (5) 2.90 mm × 1.60 mm VSSOP (8) 3.00 mm × 3.00 mm OPA2189 SOIC (8) 4.90 mm × 3.90 mm VSSOP (8) 3.00 mm × 3.00 mm OPA4189 TSSOP (14) 5.00 mm × 4.40 mm SOIC (14) 8.65 mm × 3.91 mm (1) For all available packages, see the package option addendum at the end of the data sheet. 4:2 HV MUX High-Voltage Level Translation Input High-Voltage Multiplexed Input Analog Inputs LED Photo Detector Bridge Sensor Thermocouple Current Sensing Optical Sensor + + OPAx189 OPAx189 Robust MUX-Friendly Inputs without Anti-Parallel Diodes Copyright © 2017, Texas Instruments Incorporated OPAx189 Preserves R-C Settling Performance in a Switched or Multiplexed Application Time C003 Classical High-Voltage Op Amp Anti-Parallel Diodes Loads Source OPAx189 MUX-friendly Inputs Prevents Loading of Source Competitor HV Amp OPAx189 Copyright © 2017, Texas Instruments Incorporated OPAx189 MUX-Friendly Input Settles Quickly and Maintains High Input Impedance When Switched OPA189, OPA2189, OPA4189 SBOS830I – SEPTEMBER 2017 – REVISED OCTOBER 2021 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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