AD8662:  Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers

The AD8661/AD8662 are rail-to-rail output, single-supply amplifiers that use the Analog Devices patented DigiTrim® trimming technique to achieve low offset voltage. The AD8661/AD8662 feature ...More

AD8662:  Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers

Product Description

The AD8661/AD8662 are rail-to-rail output, single-supply amplifiers that use the Analog Devices patented DigiTrim® trimming technique to achieve low offset voltage. The AD8661/AD8662 feature extended operating ranges with supply voltages up to 16 V. They also feature low input bias current, wide signal bandwidth, and low input voltage and current noise.

The combination of low offset, very low input bias current, and a wide supply range make these amplifiers useful in a wide variety of applications usually associated with higher priced JFET amplifiers. Systems using high impedance sensors, such as photodiodes, benefit from the combination of low input bias current, low noise, low offset, and wide bandwidth. The wide operating voltage range meets the demands of high performance ADCs and DACs. Audio applications and medical monitoring equipment can take advantage of the high input impedance, low voltage and current noise, and wide bandwidth.

The single AD8661 is available in an 8-lead SOIC_N package and an 8-lead LFCSP_VD. The AD8661 SOIC_N package is specified over the extended industrial temperature range from −40°C to +125°C. The AD8661 LFCSP_VD is specified over the extended industrial temperature range from −40°C to +85°C. The AD8662 is available in an 8-lead SOIC_N package and an 8-lead MSOP specified over the extended industrial temperature range from −40°C to +125°C.


Applications
  • Sensors
  • Medical Equipment
  • Consumer Audio
  • Photodiode Amplification
    • ADC drivers

    Features

    • Low Offset Voltage: 100 μV Maximum
    • Low Input Bias Current: 1 pA Maximum
    • Single-supply Operation: 5 V to 16 V
    • Low Noise: 10 nV/√Hz
    • Wide Bandwidth: 4 MHz
    • Unity-gain Stable
    • Small Package Options
      3 mm × 3 mm LFCSP_VD
      8-lead SOIC_N
      8-lead MSOP

    Diagrams

    AD8662 Diagram
    Pin Configuration Diagram for AD8662

    Specifications

    -3dB Bandwidth 4MHz
    Slew Rate 3.5V/µs
    Vos 1mV
    Ib 300fA
    Input Noise (nV/rtHz) 12nV/rtHz
    Vcc-Vee Supply (V) 5 to 16
    Iq per Amplifier (max) 1.55mA
    # OpAmps per Pkg 2
    Operating Temp Range -40 to +125
    Packages SOIC,SOP

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    Part# Small Signal Bandwidth Slew Rate Vos Ib V Noise Density Amplifiers Per Package Widest Temp Range (°C)
    AD8662 4MHz 3.5V/µs 1mV 300fA 12nV/rtHz 2 -40 to +125
    AD8666 4MHz 3.5V/µs 600µV 200fA 10nV/rtHz 2 -40 to +125
    AD8692 10MHz 5V/µs 400µV 200fA 8nV/rtHz 2 -40 to +125
    AD8606 10MHz 5V/µs 20µV 200fA 6.5nV/rtHz 2 -40 to +125
    AD8646 24MHz 11V/µs 600µV 300fA 6nV/rtHz 2 -40 to +125
    AD8647 24MHz 11V/µs 600µV 300fA 6nV/rtHz 2 -40 to +125
    AD8616 24MHz 12V/µs 23µV 200fA 6nV/rtHz 2 -40 to +125
    AD8664 4MHz 3.5V/µs 50µV 300fA 12nV/rtHz