Texas Instruments ADS8638
The ADS8638 can measure up to eight inputs. The digital supply operates from 5V all the way down to 1.8V for direct connection to a wide range of processors and controllers.FEATURES
1●23 Selectable Input Range: ±10V, ±5V, ±2.5V, 0V to 10V, or 0V to 5V Up to ±12V with External Reference
● No Latent Conversions Up to 1MSPS
● Outstanding Performance: 12 Bits No Missing Codes INL: ±0.9LSB SNR: 71.8dB
● Highly Integrated: 4- or 8-Channel Input Mux Temperature Sensor Internal Voltage Reference Alarm Thresholds for Each Channel
● Low Power: 14.45mW at 1MSPS 5.85mW at 0.1MSPS Flexible Power-Down Mode
● SPI™-Compatible Serial Interface
● Extended Temperature Range: –40°C to +125°C
● Small Footprint: 4mm × 4mm QFN Package
DESCRIPTION
The ADS8634 and ADS8638 (ADS8634/8) are 12-bit analog-to-digital converters (ADCs) capable of measuring inputs up to ±10V at 1MSPS. Using a successive approximation register (SAR) core, these ADCs provide a sample-and-hold front-end with no latency in conversions. The ADS8634 includes an input multiplexer (mux) for measuring up to four inputs. The ADS8638 can measure up to eight inputs. In addition to the input multiplexer, the ADS863...