AD8630WARZ-R7

AD8630WARZ-R7 is a zero-drift, single-supply, rail-to-rail input/output operational amplifier. It provides benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, this zero-drift amplifier combines low cost with high accuracy and low noise. No external capacitor is required. In addition, this device greatly reduces the digital switching noise found in most chopper-stabilized amplifiers. With an offset voltage of only 1µV, drift of less than 0.005μV/°C, and noise of only 0.5µV p-p (0.1Hz to 10Hz), this device is suited for applications where error sources cannot be tolerated. It is used in applications such as automotive sensors, pressure and position sensors, strain gauge amplifiers, medical instrumentation, thermocouple amplifiers, precision current sensing, and photodiode amplifiers.

• Lowest auto-zero amplifier noise, qualified for automotive applications
• Rail-to-rail input and output swing, 5V single-supply operation
• Offset voltage is 1µV typical at (VS = 5V, VCM = 2.5V, TA = 25°C)
• Offset voltage drift is 0.002µV/°C typical at (VS = 5V, VCM = 2.5V, TA = 25°C)
• Common-mode rejection ratio is 140dB typical at (VCM = 0V to 5V, VS = 5V, VCM = 2.5V, TA = 25°C)
• Input bias current is 100pA typical at (VS = 5V, VCM = 2.5V, TA = 25°C)
• Supply current per amplifier is 0.85mA typical at (VO = VS/2, VS = 5V, VCM = 2.5V, TA = 25°C)
• Gain bandwidth product is 2.5MHz typical at (VS = 5V, VCM = 2.5V, TA = 25°C)
• Slew rate is 1V/µs typical at (VS = 5V, VCM = 2.5V, TA = 25°C)
• Operating temperature range from -40°C to +125°C, 14-lead SOIC package

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