ADA4177-2 OVP and EMI Protected, Precision, Low Noise and Bias Current Dual Op Amp

The ADA4177-1 single channel, ADA4177-2 dual channel, and ADA4177-4 quad channel amplifiers feature low offset voltage (2 μV typical) and drift (1 μV/°C maximum), low input bias current, low noise, and low current consumption (500 μA typical). Outputs are stable with capacitive loads of more than 1000 pF with no external compensation.

The inputs of the ADA4177-1, ADA4177-2, and ADA4177-4 set a new standard in precision amplifier robustness, providing input protection against signal excursions 32 V beyond either supply, as well as 70 dB of rejection for electromagnetic interference (EMI) at 1000 MHz.

Applications for this amplifier include sensor signal conditioning (such as thermocouples, RTDs, and strain gages), process control front-end amplifiers, and precision diode power measurement in optical and wireless transmission systems.

The ADA4177-2 and ADA4177-4 operate over the −40°C to +125°C industrial temperature range. The ADA4177-1 and the ADA4177-2 are available in an 8-lead SOIC package and an 8-lead MSOP package. The ADA4177-4 is available in a 14-lead TSSOP and a 14-lead SOIC package.

Applications
  • Wireless base station control circuits
  • Optical network control circuits
  • Instrumentation
  • Sensors and controls Thermocouples, resistor thermal detectors (RTDs), strain gages, shunt current measurements
  • Precision filters
Features and Benefits
  • Low offset voltage: 60 μV maximum at 25°C (8-lead and 14-lead SOIC)
  • Low offset voltage drift: 1 μV/°C maximum (8-lead and 14-lead SOIC)
  • Low input bias current:
    1 nA maximum at 25°C
  • Low voltage noise density:
    8 nV/√Hz typical at 1 kHz
  • Large signal voltage gain (AVO): 100 dB minimum over full supply voltage and operating temperature
  • Input overvoltage protection to 32 V above and below the supply voltage rail
  • Integrated EMI filter
    70 dB typical rejection at 1000 MHz
    90 dB typical rejection at 2400 MHz
  • Rail-to-rail output swing
  • Low supply current:
    500 µA typical per amplifier
  • Wide bandwidth
    Gain bandwidth product (AV = +100): 3.5 MHz typical
    Unity-gain crossover (AV = +1):
    3.5 MHz typical
    −3 dB bandwidth (AV = +1): 
    6 MHz typical
  • See data sheet for additional features
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    ADA4177-1/ADA4177-2/ADA4177-4: OVP and EMI Protected, Precision, Low Noise and Bias Current Op Amp Data Sheet (Rev. C)PDF 828.6 K
    Application Notes
    Documentnote
    AN-1387: Practical Design Considerations in Applying the ADA4177 Family of Input Overvoltage Protection Operational AmplifiersPDF 172.94 K
    Product Highlight
    Documentnote
    ADA4177 Family - Setting Industry Standards for RobustnessPDF 619.98 K
    Technical Books
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADA4177-2ARMZ Production8 ld MSOPOTH 50-40 to 125C2.011.53Y
    ADA4177-2ARMZ-R7 Production8 ld MSOPREEL 1000-40 to 125C01.53Y
    ADA4177-2ARMZ-RL Production8 ld MSOPREEL 3000-40 to 125C01.53Y
    ADA4177-2ARZ Production8 ld SOICOTH 98-40 to 125C2.011.53Y
    ADA4177-2ARZ-R7 Production8 ld SOICREEL 1000-40 to 125C01.53Y
    ADA4177-2ARZ-RL Production8 ld SOICREEL 2500-40 to 125C01.53Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-2CPZDual CP-8 lead LFCSP Evaluation Board20.19Y
    EVAL-PRAOPAMP-2RMZDual RM-8 lead MSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-2RZDual R-8 lead SOIC Evaluation Board20.19Y
    Reference Materials
    ADA4177-2/ADA4177-4: 提供OVP和EMI保护的精密、 低噪声、低偏置电流运算放大器 (Rev. C) ada4177-2
    ADA4177-1/ADA4177-2/ADA4177-4: OVP and EMI Protected, Precision, Low Noise and Bias Current Op Amp Data Sheet (Rev. C) ada4177-2
    ADA4177 SPICE Macro-Model ada4177-2
    AN-1387:应用ADA4177系列输入过压保护运算放大器的实际设计考虑 ada4177-2
    AN-1387: Practical Design Considerations in Applying the ADA4177 Family of Input Overvoltage Protection Operational Amplifiers ada4177-2
    ADA4177系列 鲁棒的精密运算放大器: 单通道/双通道/四通道版本 ada4177-2
    ADA4177 Family - Setting Industry Standards for Robustness ada4177-2
    MT-095:EMI、RFI和屏蔽概念 ada4177-2
    MT-036:运算放大器输出相位反转和输入过压保护 ada4177-2
    MT-054: 精密运算放大器 ada4522-2
    MT-052:运算放大器噪声指数:不要被误导 ad829
    MS-2400: Key Benefits of Input Overvoltage Protected Op Amps in Systems ada4177-2