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  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)
  5. OP1177

Data Sheet Rev. I
CN Rev. F | JP Rev. G
SPICE Models
1 View All
Circuit Note
CN | JP 3 View All

Alternative Parts

ADA4177-1
ADA4177-1

Higher bandwidth, Lower noise, low Ibias, with OVP, EMI filter and RRO

ADA4077-1
ADA4077-1

Higher bandwidth, Lower noise, low Ibias

Overview

Features and Benefits

  • Low offset voltage: 60 μV maximum
  • Very low offset voltage drift: 0.7 μV/°C maximum
  • Low input bias current: 2 nA maximum
  • Low noise: 8 nV/√Hz typical
  • CMRR, PSRR, and AVO > 120 dB minimum
  • Low supply current: 400 μA per amplifier
  • Dual supply operation: ±2.5 V to ±15 V
  • Unity-gain stable
  • No phase reversal
  • Inputs internally protected beyond supply voltage

Product Details

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.

Applications

  • Wireless base station control circuits
  • Optical network control circuits
  • Instrumentation
  • Sensors and controls
    • Thermocouples
    • Resistor thermal detectors (RTDs)
    • Strain bridges
    • Shunt current measurements
  • Precision filters

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Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (16)
  • Data Sheets (1)
  • Application Notes (4)
  • Circuit Note (3)
  • Technical Articles (8)
    • Document Type
    Technical Articles

    Tools & Simulations

    LTspice

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

    LTspice

    Models for the following parts are available in LTspice:

    OP1177

    SPICE Models

    Design Tools

    OpAmp Error Budget Calculator

    An online tool to illustrate range, gain and accuracy issues with Op Amp.

    Analog Filter Wizard

    Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

    Analog Photodiode Wizard

    Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

    Reference Designs (3)

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    OP1177ARMZ Material Declaration Reliability Data 8-Lead MSOP
    OP1177ARMZ-R7 Material Declaration Reliability Data 8-Lead MSOP
    OP1177ARMZ-REEL Material Declaration Reliability Data 8-Lead MSOP
    OP1177ARZ Material Declaration Reliability Data 8-Lead SOIC
    OP1177ARZ-REEL Material Declaration Reliability Data 8-Lead SOIC
    OP1177ARZ-REEL7 Material Declaration Reliability Data 8-Lead SOIC
    Wafer Fabrication Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • OP1177ARMZ Production
    • OP1177ARMZ-R7 Production
    • OP1177ARMZ-REEL Production
    • OP1177ARZ Production
    • OP1177ARZ-REEL Production
    • OP1177ARZ-REEL7 Production

    Support & Discussions

    OP1177 Discussions

    AD8428 not working with transducer connected
    11 week(s) ago in Instrumentation Amplifiers
    RE: Voltage-controlled current source
    RE: Inconsistencies in Datasheet Formulas for OP1177 / OP2177 / OP4177
    All OP1177 Discussions
    OP1177 Contact ADI Technical Support »
    OP1177 Ask your question »
    OP1177 Contact ADI Technical Support » OP1177 Ask your question »

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