ADS7229 Overview
Description
The ADS7229 is a low-power, 12-bit, 1MSPS analog-to-digital converter (ADC) with a unipolar input. The device includes a 12-bit capacitor-based successive approximation register (SAR) ADC with inherent sample-and-hold.
Key Features
- 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 AC Performance at fI = 10kHz with 73.9dB SNR, 93.4dB SFDR, –88.5dB 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
