14-Bit High-Speed SAR ADC
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ADS7056
SBAS769 – MARCH 2017
ADS7...
Description
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ADS7056
SBAS769 – MARCH 2017
ADS7056 Ultra-Low Power, Ultra-Small Size, 14-Bit, High-Speed SAR ADC
1 Features
1 2.5-MSPS Throughput Ultra-Small Size SAR ADC:
– X2QFN-8 Package with 2.25-mm2 Footprint Wide Operating Range:
– AVDD: 2.35 V to 3.6 V – DVDD: 1.65 V to 3.6 V (Independent of AVDD) – Temperature Range: –40°C to +125°C Unipolar Input Range: 0 V to AVDD Excellent Performance: – 14-Bit NMC DNL, ±2-LSB INL – 74.5-dB SINAD at 2-kHz – 73.7-dB SINAD at 1-MHz Ultra-Low Power Consumption: – 3.5 mW at 2.5-MSPS with 3.3-V AVDD – 158 µW at 100-kSPS with 3.3-V AVDD Integrated Offset Calibration SPI-Compatible Serial Interface: 60-MHz JESD8-7A Compliant Digital I/O
2 Applications
Sonar Receivers Optical Line Cards and Modules Thermal Imaging Ultrasonic Flow Meters Motor Controls Handheld Radios Environmental Sensing Fire and Smoke Detection
3 Description
The ADS7056 is a 14-bit, 2.5-MSPS, analog-to-digital converter (ADC). The device includes a capacitorbased, successive-approximation register (SAR) ADC that supports a wide analog input voltage range (0 V to AVDD, for AVDD in the range of 2.35 V to 3.6 V).
The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabl...
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