AD8216:  High Bandwidth, Bidirectional 65 V Difference Amplifier

The AD8216 is a single-supply, difference amplifier ideal for amplifying small differential voltages in the presence of large common-mode voltages. The operating input common-mode voltage range ...More

AD8216:  High Bandwidth, Bidirectional 65 V Difference Amplifier

Product Description

The AD8216 is a single-supply, difference amplifier ideal for amplifying small differential voltages in the presence of large common-mode voltages. The operating input common-mode voltage range extends from −4 V to +65 V. The typical supply voltage is 5 V. The AD8216 features a 3 MHz bandwidth, allowing for the input-to-output propagation delay that is always less than 150 ns. This feature is ideal for applications monitoring rapidly increasing and decreasing load currents.

The AD8216 is offered in a SOIC package. The operating temperature range is −40°C to +125°C.

Excellent ac and dc performance over temperature keep errors in the measurement loop to a minimum. Offset and gain drift are guaranteed to a maximum of 20 μV/°C and 15 ppm/°C, respectively.

The output offset can be adjusted from 0.06 V to 4.9 V with a 5 V supply by using the VREF1 pin and the VREF2 pin. With the VREF1 pin attached to the V+ pin and the VREF2 pin attached to the GND pin, the output is set at half scale. Attaching both VREF1 and VREF2 to GND causes the output to be unipolar, starting near ground. Attaching both VREF1 and VREF2 to V+ causes the output to be unipolar, starting near V+. Other offsets can be obtained by applying an external voltage to VREF1 and VREF2.

Applications

  • High-side current sensing in
    • DC-to-dc converters
    Motor controls
    Transmission controls
    Diesel-injection controls
    Engine management
    Suspension controls
    Vehicle dynamic controls

    Data Sheet, Rev. A, 09/2008

    Features

    • ±4000 V HBM ESD
    • Ideal for current shunt applications
    • High common-mode voltage range
      −4 V to +65 V operating
      −40 V to +80 V survival
      3 MHz bandwidth
      <100 ns output propagation delay
    • Gain: 3 V/V
    • Wide operating temperature range
      Die: −40°C to +150°C
      8-lead SOIC: −40°C to +125°C
    • Adjustable output offset
    • Available in 8-lead SOIC
    • Excellent ac and dc performance
      10 μV/°C offset drift
      10 ppm/°C gain drift
    • Qualified for automotive applications

    Diagrams

    AD8216 Diagram
    Functional Block Diagram for AD8216

    Specifications

    Single/Dual Supply Single
    Voltage Supply (Vmax) +5.5V
    Gain Setting Method fixed
    Gain Range (min to max) 3
    Bandwidth G=10 (kHz typ) 3000kHz
    CMRR (dB) 90dB
    Vnoise RTI 1-10 Hz µVp-p 20µV p-p
    Temperature Range -40 to +125
    Supply Current (max) 2mA
    Package SOIC

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    Part# Common Mode Range (V) Bandwidth G=10 (kHz typ) CMRR (dB) Gain Range (min to max) Voltage Supply (Vmin) Voltage Supply (Vmax) Supply Current (max) VosiTC (µV/deg C) Gain temp co. Temperature Range Package Price* (1000-4999)
    AD22057 -1 to 24 30 80 20 +3 +26 0.5mA - - -40 to +125 DIP, SOIC $4.62
    AD626 0 to 54 100 66 90 ±2.4 ±6 2mA 0.000006 150ppm/C -40 to +85 DIP, SOIC $3.70
    AD628 +/- 100 600 77 100 ±5 ±18 1.6mA - - -40 to +85 SOIC $1.78
    AD629 +/- 270 500 77 1 ±2.5 ±18 1mA - - -40 to +85 DIP, SOIC $2.84
    AD8202 -12 to 30 50 82 20 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 Die, SOIC, SOP $1.51
    AD8203 -12 to 30 60 82 14 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 SOP $1.37
    AD8205 -2 to 65 50 78 50 +4.5 +5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.51
    AD8206 -2 to 65 100 76 20 +4.5 +5.5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.37
    AD8210 -2 to 65 500 100 20 +4.5 +5.5 1.5mA 10 20ppm/C -40 to +125 SOIC $1.81
    AD8211 -2 to 65 500 120 20 - - 2mA 12 20ppm/C -40 to +125 SOT $0.81
    AD8212 7 to 65 1000 100 1,000 +7 +65 720µA 10 - -40 to +125 MSOP $0.93
    AD8213 -2 to 65 500 100 20 +4.5 +5.5 2.5mA 12 10ppm/C -40 to +125 MSOP $2.01
    AD8214 5 to 65 - 80 100 +5 +65 1.2mA 15 - -40 to +125 MSOP $0.76
    AD8215 -2 to 65 450 100 20 +4.5 +5.5 2.2mA 6 15ppm/C