GENERAL DESCRIPTION The AD7264 is a dual, 14-bit, high speed, low power, successive approximation ADC that operates from a single 5 V power supply and features throughput rates of up to 1 MSPS per on-chip ADC (500 kSPS for the AD7264-5). 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 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.
FEATURES Dual, simultaneous sampling, 14-bit, 2-channel ADC True differential analog inputs Programmable gain stage: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128 Throughput rate per ADC 1 MSPS for AD7264 500 kSPS for AD7264-5 Analog input impedance: >1 GΩ Wide input bandwidth −3 dB bandwidth: 1.7 MHz at gain = 2 4 on-chip comparators SNR: 78 dB typical at gain = 2, 71 dB typical at gain = 32 Device offset calibration System gain calibration On-chip reference: 2.5 V −40°C to +105°C operation High speed serial interface Compatible with SPI, QSPI™, MICROWIRE™, and DSP 48-lead LFCSP and LQFP packages
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