Easy to use
Available in space-saving MSOP
Gain set with 1 external resistor (gain range 1 to 1000)
Wide power supply range: u00b12.3 V to u00b118 V
Temperature range for specified performance:
u221240u00b0C to +85u00b0C
Operational up to 125u00b0C1
Excellent AC specifications
80 dB minimum CMRR to 10 kHz (G = 1)
825 kHz, u20133 dB bandwidth (G = 1)
2 V/u00b5s slew rate
Low noise
8 nV/u221aHz, @ 1 kHz, maximum input voltage noise
0.25 u00b5V p-p input noise (0.1 Hz to 10 Hz)
High accuracy dc performance (AD8221BR)
90 dB minimum CMRR (G = 1)
25 u00b5V maximum input offset voltage
0.3 u00b5V/u00b0C maximum input offset drift
0.4 nA maximum input bias current
The AD8221 is a gain programmable, high performance instrumentation amplifier that delivers the industry’s highest CMRR over frequency in its class. The CMRR of instrumentation amplifiers on the market today falls off at 200 Hz. In contrast, the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz for all grades at G = 1. High CMRR over frequency allows the AD8221 to reject wideband interference and line harmonics, greatly simplifying filter requirements. Possible applications include precision data acquisition, biomedical analysis, and aerospace instrumentation.
