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Below is the parameter table and instructions for the AD620ANZ, a high precision instrumentation amplifier from Analog Devices.

AD620ANZ Parameter Table

Parameter Symbol Min Typ Max Unit Conditions
Supply Voltage VCC 2.3 - 36 V -
Quiescent Current IQ - 1.3 1.5 mA VCC = ±15V
Input Offset Voltage VOS - 50 100 μV VCC = ±15V
Input Bias Current IB - 10 20 nA VCC = ±15V
Common-Mode Rejection Ratio (CMRR) CMRR 80 100 110 dB VCC = ±15V, f = 60Hz
Power-Supply Rejection Ratio (PSRR) PSRR 80 100 110 dB VCC = ±15V, f = 60Hz
Gain Range G 1 - 10000 - -
Gain Error ΔG - 0.01 0.1 % G = 1000
Gain Nonlinearity NL - 0.001 0.01 % G = 1000
Bandwidth (Small Signal) BW - 10 80 kHz G = 1000, VCC = ±15V
Output Voltage Swing VOUT -13 - +13 V VCC = ±15V
Slew Rate SR - 0.5 1.0 V/μs VCC = ±15V

Instructions for Using AD620ANZ

  1. Supply Voltage:

    • The AD620ANZ can operate with a single supply voltage ranging from 2.3V to 36V or dual supplies from ±1.15V to ±18V.
    • Ensure the supply voltage is within the specified range to avoid damage to the device.
  2. Gain Setting:

    • The gain of the AD620ANZ is set by a single external resistor (RG).
    • The gain is calculated using the formula: ( G = 1 + frac{49.4kOmega} ).
    • For example, to set a gain of 1000, use ( R_G = frac{49.4kOmega}{999} approx 49.4Omega ).
  3. Input Connections:

    • Connect the input signals to the IN+ and IN- pins.
    • Ensure the common-mode voltage (VCM) is within the common-mode input range, which is typically VCC/2 ± 10V for a ±15V supply.
  4. Output Connections:

    • The output signal is available at the OUT pin.
    • The output voltage swing is typically ±13V for a ±15V supply.
  5. Biasing and Decoupling:

    • Use bypass capacitors (0.1μF and 10μF) between the supply pins (VCC and GND) to reduce noise and improve stability.
    • Place these capacitors as close as possible to the AD620ANZ to minimize parasitic inductance.
  6. Temperature Considerations:

    • The AD620ANZ is designed to operate over a wide temperature range (-40°C to +125°C).
    • However, ensure that the device is not subjected to extreme temperatures to maintain optimal performance.
  7. Handling and Storage:

    • Handle the AD620ANZ with care to avoid static discharge, which can damage the sensitive internal components.
    • Store the device in a dry, cool environment to prevent moisture-related issues.

By following these instructions, you can effectively use the AD620ANZ in your applications, ensuring optimal performance and reliability.

(For reference only)

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