The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual,
simultaneous-sampling, 18-bit successive approximation register (SAR)
analog-to-digital converter (ADC). The ADS981x features
a complete analog front-end for each channel with an input clamp protection circuit,
1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable
bandwidth options. The high input impedance allows direct connection with sensors
and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept
unipolar or bipolar inputs with up to a ±12V common-mode voltage.
The device also features a 4.096V
reference for the ADC and a 2.5V reference output for use with external circuits. A
digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level
translators.
The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual,
simultaneous-sampling, 18-bit successive approximation register (SAR)
analog-to-digital converter (ADC). The ADS981x features
a complete analog front-end for each channel with an input clamp protection circuit,
1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable
bandwidth options. The high input impedance allows direct connection with sensors
and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept
unipolar or bipolar inputs with up to a ±12V common-mode voltage.
The device also features a 4.096V
reference for the ADC and a 2.5V reference output for use with external circuits. A
digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level
translators.