OP113 Low Noise, Low Drift Single-Supply Operational Amplifier (Single)

The OPx13 family of single-supply operational amplifiers features both low noise and drift. It has been designed for systems with internal calibration. Often these processor-based systems are capable of calibrating corrections for offset and gain, but they cannot correct for temperature drifts and noise. Optimized for these parameters, the OPx13 family can be used to take advantage of superior analog performance combined with digital correction. Many systems using internal calibration operate from unipolar supplies, usually either 5 V or 12 V. The OPx13 family is designed to operate from single supplies from 4 V to 36 V and to maintain its low noise and precision performance.

The OPx13 family is unity gain stable and has a typical gain bandwidth product of 3.4 MHz. Slew rate is in excess of 1 V/μs. Noise density is a very low 4.7 nV/√Hz, and noise in the 0.1 Hz to 10 Hz band is 120 nV p-p. Input offset voltage is guaranteed and offset drift is guaranteed to be less than 0.8 μV/°C. Input common-mode range includes the negative supply and to within 1 V of the positive supply over the full supply range. Phase reversal protection is designed into the OPx13 family for cases where input voltage range is exceeded. Output voltage swings also include the negative supply and go to within 1 V of the positive rail. The output is capable of sinking and sourcing current throughout its range and is specified with 600 Ω loads.

Digital scales and other strain gage applications benefit from the very low noise and low drift of the OPx13 family. Other applications include use as a buffer or amplifier for both analog-to-digital (ADC) and digital-to-analog (DAC) sigma-delta converters. Often these converters have high resolutions requiring the lowest noise amplifier to utilize their full potential. Many of these converters operate in either single-supply or low-supply voltage systems, and attaining the greater signal swing possible increases system performance.

The OPx13 family is specified for single 5 V and dual ±15 V operation over the XIND—extended industrial temperature range (–40°C to +85°C). They are available in PDIP and SOIC surface-mount packages.

Applications
  • Digital scales
  • Multimedia
  • Strain gages
  • Battery-powered instrumentation
  • Temperature transducer amplifier
Features and Benefits
  • Single- or dual-supply operation
  • Low noise: 4.7 nV/√Hz @ 1 kHz
  • Wide bandwidth: 3.4 MHz
  • Low offset voltage: 100 μV
  • Very low drift: 0.2 μV/°C
  • Unity gain stable
  • No phase reversal
  • Amplifiers
    OP113 SPICE Macro-Model
    Data Sheets
    Documentnote
    OP113/OP213/OP413: Low Noise, Low Drift Single-Supply Operational Amplifiers Data Sheet (Rev. F)PDF 479 kB
    Application Notes
    Documentnote
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    Frequently Asked Questions
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    OP113ES Production8 ld SOICOTH 98-40 to 85C4.734.26N
    OP113ES-REEL7 Production8 ld SOICREEL 1000-40 to 85C04.26N
    OP113ESZ Production8 ld SOICOTH 98-40 to 85C3.883.49Y
    OP113ESZ-REEL Production8 ld SOICREEL 2500-40 to 85C03.49Y
    OP113ESZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C03.49Y
    OP113FSZ Production8 ld SOICOTH 98-40 to 85C21.8Y
    OP113FSZ-REEL Production8 ld SOICREEL 2500-40 to 85C01.8Y
    OP113FSZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C01.8Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-1KSZSingle KS-5 lead SC70 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RJZSingle RJ-5 lead SOT23 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RMZSingle RM-8 lead MSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RZSingle R-8 lead SOIC Evaluation Board20.19Y
    OP113/OP213/OP413: Low Noise, Low Drift Single-Supply Operational Amplifiers Data Sheet (Rev. F) op213
    OP113 SPICE Macro-Model Rev. A, 3/94 op113
    OP113E SPICE Macro-Model Rev. A, 3/94 op113
    OP113F SPICE Macro-Model Rev. A, 3/94 op113
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350