AD8639ACPZ-REEL7

AD8639 is a dual channel, wide bandwidth, auto-zero amplifier featuring rail-to-rail output swing and low noise. This amplifier has very low offset, drift, and bias current. Operation is fully specified from 5V to 16V single supply (±2.5V to ±8V dual supply). It provides benefits previously found only in expensive zero-drift or chopper-stabilized amplifiers. Using the Analog Devices, Inc., topology, this auto-zero amplifier combines low cost with high accuracy and low noise. No external capacitors are required. In addition, this device greatly reduces the digital switching noise found in most chopper stabilized amplifiers. Position and pressure sensors, medical equipment, and strain gauge amplifiers benefit greatly from nearly zero drift over their operating temperature ranges. It is used in applications such as pressure and position sensors, strain gauge amplifiers, medical instrumentation, thermocouple amplifiers, automotive sensors, precision references, precision current sensing.

• Rail-to-rail output swing, qualified for automotive application
• Offset voltage is 3μV typical at (VSY = 5V, VCM = VSY/2, TA = 25°C)
• Input bias current is 1.5pA typical at (VSY = 5V, VCM = VSY/2, TA = 25°C)
• Common-mode rejection ratio is 133dB typical at (VCM = 0V to 3V, TA = 25°C)
• Power supply rejection ratio is 143dB typical at (VSY = 5V, VCM = VSY/2, TA = 25°C)
• Supply current per amplifier is 1mA typical at (VSY = 5V, VCM = VSY/2, TA = 25°C)
• Slew rate is 2.5V/μs typical at (RL = 10Kohm, CL = 20pF, AV = 1)
• Settling time to 0.1% is 3μs typical at (VIN = 2V step, CL = 20pF, RL = 1Kohm, AV = 1)
• Gain bandwidth product is 1.35MHz typical at (RL = 2Kohm, CL = 20pF, AV = 1)
• Operating temperature is -40°C to +125°C, package style is 8-lead LFCSP_WD

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party