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 func-tions 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.
The AD7264 contains four comparators. Comparator A and Comparator B are optimized for low power, whereas Comparator C and Comparator D have fast propagation delays. The AD7264 features a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7264 has an on-chip 2.5 V reference that can be disabled if an external reference is preferred. The AD7264 is available in 48-lead LFCSP and LQFP packages.
The AD7264 is ideally suited for monitoring small amplitude signals from a variety of sensors. The parts include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.
|Title||Content Type||File Type|
|AD7264: 1 MSPS, 14-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators Data Sheet (Rev B, 12/2012) (pdf, 1398 kB)||Data Sheets|
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
ADC Interfaces with Multiple Sensors; Replaces Up to Three Data Acquisition Channels in Motor Control Applications
(EE Product Center, 5/3/2007)
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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