The OPx177 family consists of very high precision, single, dual, and quad amplifiers featuring extremely low offset voltage and drift, low input bias current, low noise, and low power consump-tion. Outputs are stable with capacitive loads of over 1000 pF with no external compensation. Supply current is less than 500 μA per amplifier at 30 V. Internal 500 Ω series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal.
Unlike previous high voltage amplifiers with very low offset voltages, the OP1177 (single) and OP2177 (dual) amplifiers are available in tiny 8-lead surface-mount MSOP and 8-lead narrow SOIC packages. The OP4177 (quad) is available in TSSOP and 14-lead narrow SOIC packages. Moreover, specified performance in the MSOP and the TSSOP is identical to performance in the SOIC package. MSOP and TSSOP are available in tape and reel only.
The OPx177 family offers the widest specified temperature range of any high precision amplifier in surface-mount packaging. All versions are fully specified for operation from −40°C to +125°C for the most demanding operating environments.
Applications for these amplifiers include precision diode power measurement, voltage and current level setting, and level detection in optical and wireless transmission systems. Additional applications include line-powered and portable instrumentation and controls—thermocouple, RTD, strain-bridge, and other sensor signal conditioning—and precision filters.
|Title||Content Type||File Type|
|OP1177/OP2177/OP4177: Precision Low Noise, Low InputBias Current Operational Amplifiers Data Sheet (Rev G, 11/2009) (pdf, 487 kB)||Data Sheets|
|AN-1313: Configuring the AD5422 to Combine Output Current and Output Voltage to a Single Output Pin (pdf, 413 kB)||Application Notes|
|AN-940: Low Noise Amplifier Selection Guide for Optimal Noise Performance (pdf, 199 kB)||Application Notes|
|AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)||Application Notes|
|AN-579: Versatile Programmable Amplifiers Using Digital Potentiometers with Nonvolatile Memory (pdf, 90 kB)||Application Notes|
|AN-358: Noise and Operational Amplifier Circuits (pdf, 593 kB)||Application Notes|
|AN-256: Accurately Testing Op Amp Settling Times (pdf, 106 kB)||Application Notes|
|CN0305: A 16-Bit, 300 kSPS Low Power Successive Approximation ADC System with Optimum Low Power Drive Amplifier for Sub-Nyquist Input Signals Up to 4 kHz (pdf, 271 kB)||Circuit Note|
|CN-0151: Versatile High Precision Programmable Current Sources Using DACs, Op Amps, and MOSFET Transistors (pdf, 234 kB)||Circuit Note|
|CN-0169: How to Achieve High Precision Voltage Level Setting Using the AD5542A/AD5541A 16-Bit Voltage Output DAC (pdf, 457 kB)||Circuit Note|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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OpAmp Error Budget Calculator
An online tool to illustrate range, gain and accuracy issues in simple opamp buffers.
|Amplifier Error Budget Analysis||HTML|
|OP1177 SPICE Macro-Model||SPICE Models||HTML|
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.