Texas Instruments的ADS1018是一个精密的模拟 - 数字转换器

The ADS1018 is a precision analog-to-digital converter (ADC) with 12 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package. The ADS1018 is designed with precision, power, and ease of implementation in mind. The ADS1018 features an integrated voltage reference and oscillator. Data are transferred via a SPI-compatible serial interface. The ADS1018 operates from a single power supply ranging from 2.0 V to 5.5 V.

The ADS1018 can perform conversions at rates up to 3300 samples per second (SPS). A programmable gain amplifier (PGA) is integrated in the ADS1018 that offers input ranges from as low as ±256 mV up to the supply rails, allowing both large and small signals to be measured with high resolution. The ADS1018 also features an input multiplexer (MUX) that provides two differential or four single-ended inputs. The ADS1018 can also function as a high-accuracy temperature sensor. This temperature sensor can be used for system-level temperature monitoring or cold-junction compensation for thermocouples.

The ADS1018 operates either in continuous conversion mode or single-shot mode that automatically powers down after a conversion and greatly reduces current consumption during idle periods. The ADS1018 is specified from –40°C to +125°C.

Features

Ultra-Small QFN Package: 2 mm × 1,5 mm × 0,4 mm Wide Supply Range: 2.0 V to 5.5 V Low Current Consumption: Continuous Mode: Only 150 µA Single-Shot Mode: Auto Power-Down Programmable Data Rate: 128 SPS to 3300 SPS Single-Cycle Settling Internal Temperature Sensor: 1°C (max) Error Internal Low-Drift Voltage Reference Internal Oscillator Internal PGA Four Single-Ended or Two Differential Inputs