Description
a .
Software Programmable Gain Amplifier AD526
PIN CONFIGURATION
DIG GND 1 NULL 2 VIN 3 NULL 4
16 15 14
A1 A0 CS
CLK TOP VIEW ANALOG GND 2 5 (Not to Sc.
Features
* Digitally Programmable Binary Gains from 1 to 16 Two-Chip Cascade Mode Achieves Binary Gain from 1 to 256 Gain Error: 0.01% Max, Gain = 1, 2, 4 (C Grade) 0.02% Max, Gain = 8, 16 (C Grade) 0.5 ppm/؇ C Drift Over Temperature Fast Settling Time 10 V Signal Change: 0.01% in 4.5 s (Gain = 16) Gain Chan
Applications
* requiring programmable gain. The small signal bandwidth is 350 kHz at a gain of 16. In addition, the AD526 provides excellent dc precision. The FETinput stage results in a low bias current of 50 pA. A guaranteed maximum input offset voltage of 0.5 mV max (C grade) and low gain error (0.01%, G = 1, 2