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.
The ADS7230 is based on the same core and includes a 2-to-1 input MUX with a programmable TAG bit output option. Both the ADS7229 and ADS7230 offer a high-speed, wide voltage serial interface and are capable of daisy-chain mode operation when multiple converters are used.
FEATURES
• 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:
– ±0.15LSB Typ, ±0.5LSB Max INL
– ±0.12LSB Typ, ±0.5LSB Max DNL
– ±0.8mV Max Offset Error at 3V
– ±1.25mV Max Offset Error at 5V
• Excellent AC Performance at fI = 10kHz with 73.9dB SNR, 93.4dB SFDR, –88.5dB THD
