The ADAS3022 series successive approximation-based Analog-to-Digital Data Acquisition System, which is manufactured on proprietary iCMOS® high voltage industrial process technology. The device integrates an 8-channel, low leakage multiplexer, a high impedance programmable gain instrumentation amplifier (PGIA) stage with high common-mode rejection, a precision, low drift 4.096V reference and buffer and a 16-bit charge redistribution analog-to-digital converter (ADC) with successive approximation register (SAR) architecture. In addition, the device can accept the commonly used bipolar differential, bipolar single-ended, pseudo bipolar or pseudo unipolar input signals, as shown in Table 1, thus enabling the use of almost any direct sensor interface. The ADAS3022 simplifies design challenges by eliminating signal buffering, level shifting, amplification/attenuation, common-mode rejection, settling time and any other analog signal conditioning challenge.
Ease of use-16-bit, 1MSPS Complete data acquisition system
>500MR High impedance, 8-channel input
±24.576V maximum Differential input voltage range
>100dB High input common-mode rejection
User-programmable input ranges
Channel sequencer with individual channel gains
On-chip 4.096V Reference and buffer
Auxiliary input-direct interface to PulSAR ADC inputs
No latency or pipeline delay (SAR architecture)
Serial 4-wire, 1.8V to 5V SPI-/SPORT-compatible interface
