AD8225ARZ

The AD8225 is an instrumentation amplifier with a fixed gain of 5, which sets new standards of performance. The superior CMRR of the AD8225 enables rejection of high frequency common - mode voltage (80 dB Min @ 10 kHz). As a result, higher ambient levels of noise from utility lines, industrial equipment, and other radiating sources are rejected. Extended CMV range enables the AD8225 to extract low level differential signals in the presence of high common - mode dc voltage levels even at low supply voltages. CMRR performance of the AD8225 rejects noise from utility systems, motors, and repair equipment on factory floors, switching power supplies, and medical equipment. Low input bias currents combined with a high slew rate of 5 V/µs make the AD8225 ideally suited for multiplexed applications. The AD8225 provides excellent dc precision, with maximum input offset voltage of 150 µV and drift of 2 µV/°C. Gain drift is 5 ppm/°C or less. Operating on either single or dual supplies, the fixed gain of 5 and wide input common - mode voltage range make the AD8225 well suited for patient monitoring applications. The AD8225 is packaged in an 8 - lead SOIC package and is specified over the standard industrial temperature range, - 40°C to + 85°C.

Applications

• Patient Monitors
• Current Transmitters
• Multiplexed Systems
• 4 to 20 mA Converters
• Bridge Transducers
• Sensor Signal Conditioning

Key features

• No External Components Required
• Highly Stable, Factory Trimmed Gain of 5
• Low Power, 1.2 mA Max Supply Current
• Wide Power Supply Range (±1.7 V to ±18 V)
• Single - and Dual - Supply Operation
• Excellent Dynamic Performance High CMRR 86 dB Min @ DC 80 dB Min to 10 kHz Wide Bandwidth 900 kHz 4 V to 36 V Single Supply High Slew Rate 5 V/µs Min
• Outstanding DC Precision Low Gain Drift 5 ppm/°C Max Low Input Offset Voltage 150 µV Max Low Offset Drift 2 µV/°C Max Low Input Bias Current 1.2 nA Max