The ADS1118-Q1 is a precision, low power, 16-bit analog-to-digital converter (ADC) thatprovides all features necessary to measure the most common sensor signals. The ADS1118-Q1integrates a programmable gain amplifier (PGA), voltage reference, oscillator, and high-accuracytemperature sensor. These features, along with a wide power-supply range from 2 V to 5.5 V, makethe
ADS1118-Q1 ideally suited for power- and space-constrained, sensor-measurement applications.
The ADS1118-Q1 performs conversions at data rates up to 860 samples per second (SPS). ThePGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to bemeasured with high resolution. An input multiplexer (mux) allows measurement of two differential orfour single-ended inputs. The high-accuracy temperature sensor is used for system-level temperaturemonitoring, or cold-junction compensation for thermocouples.
The ADS1118-Q1 operates either in continuous-conversion mode, or in a single-shot modethat automatically powers down after a conversion. Single-shot mode significantly reduces currentconsumption during idle periods. Data are transferred through a serial peripheral interface(SPI™). The ADS1118-Q1 is specified from –40°C to+125°C.