Description

8-Channel, 24-Bit, Simultaneous Sampling ADC Features: 8-channel, 24-bit simultaneous sampling analog-to-digital converter (ADC) Single-ended or true differential inputs Programmable gain amplifier (PGA) per channel (gains of 1, 2, 4, and 8) Low dc input current ±1.5 nA (differential) ±4 nA (single-ended) Up to 16 kSPS output data rate (ODR) per channel Programmable ODRs and bandwidth Sample rate converter (SRC) for coherent sampling Sampling rate resolution up to 15.2 µSPS Low latency sinc3 filter path Adjustable phase synchronization Internal 2.5 V reference Two power modes optimizing power dissipation and performance: high resolution mode and low power mode Low resolution successive approximation (SAR) ADC for system and chip diagnostics Power supply Bipolar (±1.65 V) or unipolar (3.3 V) supplies Digital input/output (I/O) supply: 1.8 V to 3.6 V Performance temperature range: –40°C to +105°C Functional temperature range: –40°C to +125°C Performance Combined ac and dc performance 108 dB signal-to-noise ratio (SNR)/dynamic range at 16 kSPS in high resolution mode −109 dB total harmonic distortion (THD) ±7 ppm integral nonlinearity (INL) ±40 µV offset error ±0.1% gain error±10 ppm/°C typical temperature coefficient ±10 ppm/°C typical temperature coefficient