The ADS7844NBG4 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844NBG4 is guaranteed down to 2.7V operation.
Low power, high speed, and on-board multiplexer make the ADS7844NBG4 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844NBG4 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the 40°C to +85°C temperature range.
Feature
- SINGLE SUPPLY: 2.7V to 5V
- 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
- UP TO 200kHz CONVERSION RATE
- ±1 LSB MAX INL AND DNL
- NO MISSING CODES
- 72dB SINAD
- SERIAL INTERFACE
- 20-LEAD QSOP AND 20-LEAD SSOP PACKAGES
- ALTERNATE SOURCE FOR MAX147
- APPLICATIONS
- DATA ACQUISITION
- TEST AND MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- PERSONAL DIGITAL ASSISTANTS
- BATTERY-POWERED SYSTEMS
