OPA656NB Part Information

Details for OPA656NB by Texas Instruments

Semiconductors - ICs > Amplifiers & Comparators > Operational Amplifiers - Op Amps

Part Description

The OPA656 device combines a very wideband, unity-gain stable, voltage-feedback operational amplifier with a FET-input stage to offer an ultra high dynamic-range amplifier for Analog-to-Digital Converter (ADC) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications. The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, lownoise integrators. The high input impedance and low bias current provided by the FET input is supported by the ultralow 7-nV/√Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications. Broad transimpedance bandwidths are achievable given the OPA656 device’s high 230-MHz gain bandwidth product. As shown below, a –3-dB bandwidth of 1 MHz is provided even for a high 1-MΩ transimpedance gain from a 47-pF source capacitance.

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Part Features

  • 500 MHz Unity-gain Bandwidth
  • High-Output Current: 70 mA
  • Low Distortion: 74-dB SFDR at 5 MHz
  • Low Input Bias Current: 2 pA
  • Low Input Voltage Noise: 7 nV/u221aHz
  • Low Offset And Drift: u00b1250 u00b5V, u00b12 u03bcV/u00b0C

Part Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Bandwidth 500MHz
Slew Rate 290V/µs
Supply Voltage Range 10V to 12V ± 6V
Amplifier Case Style SOT-23
No. of Pins 5Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
Amplifer Supply Voltage 10V to 12V ± 6V
Amplifier Type FET Operational
Base Number 656
Gain Bandwidth 500MHz
IC Generic Number 656
Input Offset Voltage Max 0.6mV
Logic Function Number 656
Op Amp Type Wideband
Operating Temperature Range -40°C to +85°C
Operational Amplifier Features Voltage Feedback
Supply Voltage + Nom 5V
Supply Voltage Max 6V
Supply Voltage Min 5V
Supply Voltage Nom -5V
Not RoHS Compliant

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