ADS7279

ADS7279 ADS7280 www.ti.com ............................................................................................................................................................... SBAS436A – MAY 2008 – REVISED JUNE 2009 LOW-POWER, 14-BIT, 1MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE FEATURES 1 23 2.7V to 5.5V Analog Supply, Low Power: – 13.7mW (1MHz, +VA = 3V, +VBD = 1.8V) 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V, 900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V Excellent DC Performance: – ±0.4LSB Typ, ±1.0LSB Max INL – ±0.4LSB Typ, ±1.0LSB Max DNL – ±0.8mV Max Offset Error at 3V – ±1.25mV Max Offset Error at 5V Excellent AC Performance at fI = 10kHz with 85.9dB SNR, 105.3dB SFDR, –100.1dB THD Built-In Conversion Clock (CCLK) 1.65V to 5.5V I/O Supply: – SPI™/DSP-Compatible Serial Interface – SCLK up to 50MHz Comprehensive Power-Down Modes: – Deep Power-Down – Nap Power-Down – Auto Nap Power-Down Unipolar Input Range: 0V to VREF Software Reset Global CONVST (Independent of CS) Programmable Status/Polarity EOC/INT 4 × 4 QFN-16 and TSSOP-16 Packages Multi-Chip Daisy-Chain Mode Programmable TAG Bit Output Auto/Manual Channel Select Mode (ADS7280) APPLICATIONS Communications Transducer Interface Medical Instruments Magnetometers Industrial Process Control Data Acquisition Systems Automatic Test Equipment DESCRIPTION The ADS7279 is a low-power, 14-bit, 1MSPS analog-to-digital converter (ADC) with a unipolar...