a Software ProgrammableGain AmplifierAD526FEATURESPIN CONFIGURATIONDigitally Programmable Binary Gains from 1 to 16 Two-Chip Cascade Mode Achieves Binary Gain from1 to 256DIG GND 116 A1Gain Error:NULL 215 A00.01% Max, Gain = 1, 2, 4 (C Grade)V314INCS0.02% Max, Gain = 8, 16 (C Grade)NULL 4AD52613 CLK0.5 ppm/ ⴗ C Drift Over TemperatureTOP VIEWANALOG GND 2 512 A2Fast Settling Time(Not to Scale)ANALOG GND 1 611 B10 V Signal Change:–V7100.01% in 4.5 s (Gain = 16)S+VSGain Change:V89OUT SENSEVOUT FORCE0.01% in 5.6 s (Gain = 16)Low Nonlinearity: ⴞ 0.005% FSR Max (J Grade) Excellent DC Accuracy:Offset Voltage: 0.5 mV Max (C Grade) Offset Voltage Drift: 3 V/ ⴗ C (C Grade)TTL-Compatible Digital InputsPRODUCT DESCRIPTION The AD526 is a single-ended, monolithic software program- APPLICATION HIGHLIGHTS mable gain amplifier (SPGA) that provides gains of 1, 2, 4, 8 1. Dynamic Range Extension for ADC Systems: A single and 16. It is complete, including amplifier, resistor network AD526 in conjunction with a 12-bit ADC can provide and TTL-compatible latched inputs, and requires no external 96 dB of dynamic range for ADC systems . components. 2. Gain Ranging Preamps: The AD526 offers complete digital Low gain error and low nonlinearity make the AD526 ideal for gain control with precise gains in binary steps from 1 to 16. precision instrumentation applications requiring programmable Additional gains of 32, 64, 128