Description: True Differential, Dual,1 MSPS, 12-Bit, 2-Channel SAR ADC With PGA
The AD7264/AD7262 are dual, 14-bit/12-bit, high speed, low power, successive approximation ADC’s that operate from a single 5 V power supply and features throughput rates up to 1MSPS, per on-chip ADC. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are thirteen gain settings available, ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96 and x128. The AD7264/AD7262 offers very wide dynamic range from 84dB at a gain of 2 to 102db at a gain of 32.
In addition, the AD7264/AD7262 contains four comparators. Comparators A and B are optimized for low power while comparator C and D have fast propagation delays. The AD7264/AD7262 features a calibration function to remove any devices offset error and programmable gain adjust registers to allow for input path (e.g. sensor) offset and gain compensation. The AD7264/AD7262 has an on-chip 2.5 V reference that can disabled if an external reference is preferred. The AD7264/AD7262 is available in a 48-lead LQFP or LFCSP package. |
