Product Summary

The AD8221ARM is a gain programmable, high performance instrumentation amplifier that delivers the highest CMRR over frequency in its class. The CMRR of instrumentation amplifiers on the market today falls off at 200 Hz. In contrast, the AD8221ARM maintains a minimum CMRR of 80 dB to 10 kHz for all grades at G = 1. High CMRR over frequency allows the AD8221ARM to reject wideband interference and line harmonics, greatly simplifying filter requirements. Possible applications include precision data acquisition, biomedical analysis, and aerospace instrumentation. The applications of the AD8221ARM include Weigh scales, Industrial process controls, Bridge amplifiers, Precision data acquisition systems, Medical instrumentation, Strain gages and Transducer interfaces.

Parametrics

AD8221ARM absolute maximum ratings: (1)Supply Voltage: ±18 V; (2)Internal Power Dissipation: 200 mW; (3)Output Short-Circuit Current: Indefinite; (4)Input Voltage (Common-Mode): ±VS; (5)Differential Input Voltage: ±VS; (6)Storage Temperature Range: -65 to +150℃; (7)Operating Temperature Range: -40 to +125℃.

Features

AD8221ARM features: (1)Easy to use; (2)Available in space-saving MSOP ; (3)Gain set with 1 external resistor (gain range 1 to 1000); (4)Wide power supply range: ±2.3 V to ±18 V ; (5)Temperature range for specified performance: -40 to +85℃ ; (6)Operational up to 125℃; (7)Excellent AC specifications: 80 dB minimum CMRR to 10 kHz ( G = 1); 825 kHz, –3 dB bandwidth (G = 1); 2 V/μs slew rate ; (8)Low noise: 8 nV/Hz, @ 1 kHz, maximum input voltage noise; 0.25 μV p-p input noise (0.1 Hz to 10 Hz) ; (9)High accuracy dc performance (AD8221BR): 90 dB minimum CMRR (G = 1); 25 μV maximum input offset voltage; 0.3 μV/℃ maximum input offset drift; 0.4 nA maximum input bias current.

Diagrams

AD8221ARM connection diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD8221ARM
AD8221ARM

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-50: $2.78
AD8221ARM-REEL
AD8221ARM-REEL

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-3000: $1.81
AD8221ARM-REEL7
AD8221ARM-REEL7

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-1000: $1.83
AD8221ARMZ
AD8221ARMZ

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-1: $3.13
1-10: $2.79
10-25: $2.52
25-100: $2.29
100-250: $2.07
250-500: $1.86
500-1000: $1.56
1000-2500: $1.49
AD8221ARMZ-R7
AD8221ARMZ-R7

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-1000: $1.56
AD8221ARMZ-RL
AD8221ARMZ-RL

IC AMP INST PREC LN 18MA 8MSOP
Data Sheet
0-3000: $1.49