AD8205 Difference Amplifier IC chip

AD8205(Single-Supply 42V System,Difference Amplifier)

Introduction

The AD8205 is a single-supply difference amplifier for amplifying small differential voltages in the presence of large common-mode voltages. The operating input common-mode voltage range extends from -2V to +65 V. The typical single-supply voltage is 5V.

The Y and W grade models of the AD8205 in an 8-lead SOIC package rate its operation from -40°C to +125°C, while the H grade version of the AD8205 rates its operation from -40°C to +150°C.Excellent dc performance over temperature keeps errors in the measurement loop to a minimum. Offset drift is typically less than 15 μV/°C, and gain drift is typically below 30 ppm/°C.

The output offset can be adjusted from 0.05 V to 4.8 V with a 5 V supply by using the VREF1 and VREF2 pins. With VREF1 attached to the V+ pin, and VREF2 attached to the GND pin, the output is set at half scale. Attaching both pins to GND causes the output to be unipolar, starting near ground.Attaching V+ to both pins causes the output to become unipolar, starting near V+. You can obtain other offsets by applying an external voltage to the VREF1 and VREF2 pins.

Feature

• Ideal for current shunt applications
• High common-mode voltage range
  – -2 V to +65 V operating
  – 25 V to +75 V survival
• Gain = 50 V/V
• Wide operating temperature range:
  – 40°C to +125°C for Y and W grade
  – 40°C to +150°C for H grade .
• Bidirectional operation
• Available in 8-lead SOIC
• Qualified for automotive applications

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