MAX198 - 6通道、多量程、5V、12位DAS，带有12位总线接口和故障保护

MAX198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，MAX198是6通道、多量程、5V、12位DAS，带有12位总线接口和故障保护，本站介绍了MAX198的封装应用图解、特点和优点、功能等，并给出了与MAX198相关的Maxim元器件型号供参考。

MAX198 - 6通道、多量程、5V、12位DAS，带有12位总线接口和故障保护 - 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 MAX196/MAX198 multirange, 12-bit data-acquisition systems (DAS) require only a single +5V supply for operation, yet convert analog signals at their inputs up to ±10V (MAX196) and ±4V (MAX198). These systems provide six analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, and 0V to +5V for the MAX196; ±VREF, ±VREF/2, 0V to +VREF, and 0V to +VREF/2 for the MAX198. This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface ±12V, ±15V, and 4mA to 20mA powered sensors to a single +5V system. In addition, these converters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, 100ksps throughput rate, software-selectable internal/external clock, internal/external acquisition control, 12-bit parallel interface, and internal 4.096V or external reference.

Two programmable power-down modes (STBYPD, FULLPD) provide low-current shutdown between conversions. In STBYPD mode, the reference buffer remains active, eliminating start-up delays.

The MAX196/MAX198 employ a standard microprocessor (µP) interface. A three-state data I/O port is configured to operate with 16-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.

These devices are available in 28-pin DIP, wide SO, SSOP (55% smaller in area than wide SO), and ceramic SB packages. For 8+4 bus interface, see the MAX197 and the MAX199 data sheets. An evaluation kit is available (MAX196EVKIT-DIP).

关键特性

以下关键特性由Maxim美信半导体提供：

12-Bit Resolution, 1/2 LSB Linearity

Single +5V Supply Operation

Software-Selectable Input Ranges:

±10V, ±5V, 0V to +10V, 0V to +5V (MAX196)

±VREF, ±VREF/2, 0V to +VREF, 0V to +VREF/2 (MAX198)

Internal 4.096V or External Reference

Fault-Protected Input Multiplexer

6 Analog Input Channels

6µs Conversion Time, 100ksps Sampling Rate

Internal or External Acquisition Control

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

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