MAX192 - 低功耗、8通道、串行10位ADC

MAX192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，MAX192是低功耗、8通道、串行10位ADC，本站介绍了MAX192的封装应用图解、特点和优点、功能等，并给出了与MAX192相关的Maxim元器件型号供参考。

MAX192 - 低功耗、8通道、串行10位ADC - 数据转换器和采样-保持电路 - 对于3V应用，请参考MAX1248和MAX148 - 美信半导体

产品概述

The MAX192 is a low-cost, 10-bit data-acquisition system thatcombines an 8-channel multiplexer, high-bandwidth track/hold, and serialinterface with high conversion speed and ultra-low power consumption. The deviceoperates with a single +5V supply. The analog inputs are software configurablefor single-ended and differential (unipolar/bipolar) operation.

The 4-wire serial interface connects directly to SPI™, QSPI™, and MICROWIRE™ devices, without using external logic. A serial strobe output allows direct connection to TMS320 family digital signal processors. The MAX192 uses either the internal clock or an external serial-interface clock to perform successive approximation A/D conversions. The serial interface can operate beyond 4MHz when the internal clock is used. The MAX192 has an internal 4.096V reference with a drift of ±30ppm typical. A reference-buffer amplifier simplifies gain trim and two sub-LSBs reduce quantization errors.

The MAX192 provides a hardwired active-low SHDN pin and two software-selectable power-down modes. Accessing the serial interface automatically powers up the device, and the quick turn-on time allows the MAX192 to be shut down between conversions. By powering down between conversions, supply current can be cut to under 10µA at reduced sampling rates.

The MAX192 is available in 20-pin DIP and SO packages, and in a shrink-small-outline package (SSOP) that occupies 30% less area than an 8-pin DIP. The data format provides hardware and software compatibility with the MAX186/MAX188. For anti-aliasing filters, consult the data sheets for the MAX291-MAX297.

关键特性

以下关键特性由Maxim美信半导体提供：

8-Channel Single-Ended or 4-Channel Differential Inputs

Single +5V Operation

Low Power:

1.5mA (operating)

2µA (power-down)

Internal Track/Hold, 133kHz Sampling Rate

Internal 4.096V Reference

4-Wire Serial Interface is Compatible with SPI, QSPI, MICROWIRE, and TMS320

20-Pin DIP, SO, SSOP Packages

Pin-Compatible 12-Bit Upgrade (MAX186/MAX188)

热门应用

汽车电子

电池管理

电池供电应用

消费类电子

医疗仪器

笔输入系统

便携式数据记录

机器人技术

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