OPA334

ACTIVE

Single 0.05uV/C max, single-supply CMOS operational amplifier with shutdown

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OPA383 ACTIVE Single, zero-drift, micropower (65μA), high speed-to-power ratio (2.5MHz) RRIO operational amplifier OPA383 offers improvements in Vos drift, offers RRIO, consumes less power, lower noise, and lower bias current.

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.

  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very low offset voltage (5µV max), and near zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very low offset voltage (5µV max), and near zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

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Technical documentation

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* Data sheet 0.05uV/C max, Single-Supply CMOS Op Amps Zero-Drift datasheet (Rev. D) Jun 12, 2003
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML Dec 5, 2024
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) Jan 28, 2021
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note OPA334, OPA2334, OPA335, OPA2335 EMI Immunity Performance (Rev. A) Oct 31, 2012

Design & development

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Evaluation board

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Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian

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