MAX191是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX191是低功耗、12位采样ADC，内置电压基准及关断模式，本站介绍了MAX191的封装应用图解、特点和优点、功能等，并给出了与MAX191相关的Maxim元器件型号供参考。
MAX191 - 低功耗、12位采样ADC，内置电压基准及关断模式 - 数据转换器和采样-保持电路 - 对于新设计，请参考MAX129X系列产品 - 美信半导体
The MAX191 is a monolithic, CMOS, 12-bit analog-to-digital converter (ADC) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial µP interface. TheMAX191 has a 7.5µs conversion time, a 2µs acquisition time, and a guaranteed 100ksps sample rate.
The MAX191 operates from a single +5V supply or from dual ±5V supplies, allowing ground-referenced bipolar input signals. The device features a logic power-down input, which reduces the 3mA VDD supply current to 50µA max, including the internal-reference current.
Decoupling capacitors are the only external components needed for the power supply and reference. This ADC operates with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors.
The MAX191 provides three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI™, QSPI™, and MICROWIRE™ serial-interface standards.
