MAX197 - 多量程(±10V, ±5V, +10V, +5V)、单+5V、12位数DAS，8+4总线接口

MAX197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，MAX197是多量程(±10V, ±5V, +10V, +5V)、单+5V、12位数DAS，8+4总线接口，本站介绍了MAX197的封装应用图解、特点和优点、功能等，并给出了与MAX197相关的Maxim元器件型号供参考。

MAX197 - 多量程(±10V, ±5V, +10V, +5V)、单+5V、12位数DAS，8+4总线接口 - 数据转换器和采样-保持电路 - ±17V故障保护ADC，可通过软件选择输入量程 - 美信半导体

产品概述

The MAX197 multi-range, 12-bit data-acquisition system (DAS) requires only a single +5V supply for operation, yet accepts signals at its analog inputs that may span both above the power-supply rail and below ground. This system provides 8 analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, or 0V to +5V. This increases effective dynamic range to 14 bits, and provides the user flexibility to interface 4mA-to-20mA, ±12V, and ±15V powered sensors to a single +5V system. In addition, the converter is overvoltage tolerant to ±16.5V; a fault condition on any channel does not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, a 100ksps throughput rate, software-selectable internal or external clock and acquisition, 8+4 parallel interface, and an internal 4.096V or an external reference.

A hardware active-low SHDN pin and two programmable power-down modes (STBYPD, FULLPD) are provided for low-current shutdown between conversions. In STBYPD mode, the reference buffer remains active, eliminating start-up delays.

The MAX197 employs a standard microprocessor (µP) interface. A three-state data I/O port is configured to operate with 8-bit data buses, and data-access and bus-release timing specifications are compatible with most popular µPs. All logic inputs and outputs are TTL/CMOS compatible.

The MAX197 is available in 28-pin DIP, wide SO, SSOP, and ceramic SB packages.

For a different combination of ranges (±4V, ±2V, 0V to 4V, 0V to 2V), refer to the MAX199 data sheet. For 12-bit bus interface, refer to the MAX196 and MAX198 data sheets.

关键特性

以下关键特性由Maxim美信半导体提供：

12-Bit Resolution, 1/2LSB Linearity

Single +5V Operation

Software-Selectable Input Ranges: ±10V, ±5V, 0V to 10V, 0V to 5V

Fault-Protected Input Multiplexer (±16.5V)

8 Analog Input Channels

6µs Conversion Time, 100ksps Sampling Rate

Internal or External Acquisition Control

Internal 4.096V or External Reference

Two Power-Down Modes

Internal or External Clock

热门应用

自动测试设备(ATE)

数据采集

工业控制系统

医疗仪器

机器人技术

电信

下面可能是您感兴趣的美信半导体公司数据转换器和采样-保持电路元器件

Maxim(AD)|Maxim公司|Maxim美信半导体芯片授权国内Maxim代理商

Maxim公司产品现货专家，订购美信半导体公司产品不限最低起订量，Maxim（美信半导体）产品大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球Maxim代理商现货货源 - Maxim公司（已被AD亚德诺半导体收购）电子元件在线订购