FEATURES 
Easy to use 
Gain set with one external resistor
(Gain range 1to 10,000)
Wide power supply range(±2.3 Vto±18V)
Higher performance than 3 op amp IA designs 
Available in 8-lead DIP and SOIC packaging 
Low power,1.3 mA max supply current 
Excellent dc performance (B grade)
50 uV max, input offset voltage
0.6μV/PC max, input offset drift
1.0nA max, input bias current
100 dB min common-mode rejection ratio (G=10)
Low noise
9 nV/VHz@ 1 kHz, input voltage noise
0.28 μV p-pnoise (0.1 Hz to 10 Hz)
Excellent ac specifications
120kHz bandwidth(G=100)
15 us settling time to 0.01%
APPLICATIONS
Weigh scales 
ECG and medical instrumentation 
Transducer interface 
Data acquisition systems 
Industrial process controls 
Battery-powered and portable equipment

PRODUCT DESCRIPTION

The AD620ARZ-REEL7 is a low cost, high accuracy instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. Furthermore, the AD620ARZ-REEL7 features 8-lead SOIC and DIP packaging that is smaller than discrete designs and offers lower power (only 1.3 mA max supply current), making it a good fit for battery-powered, portable (or remote) applications. 

The AD620, with its high accuracy of 40 ppm maximum nonlinearity, low offset voltage of 50 μV max, and offset drift of 0.6 μV/°C max, is ideal for use in precision data acquisition systems, such as weigh scales and transducer interfaces. Furthermore, the low noise, low input bias current, and low power of the AD620ARZ-REEL7 make it well suited for medical applications, such as ECG and noninvasive blood pressure monitors. 

The low input bias current of 1.0 nA max is made possible with the use of Superϐeta processing in the input stage. The AD620 works well as a preamplifier due to its low input voltage noise of 9 nV/√Hz at 1 kHz, 0.28 μV p-p in the 0.1 Hz to 10 Hz band, and 0.1 pA/√Hz input current noise. Also, the AD620ARZ-REEL7 is well suited for multiplexed applications with its settling time of 15 μs to 0.01%, and its cost is low enough to enable designs with one in-amp per channel. 

Feature