MAX1204 - 5V、8通道、串行、10位ADC，3V数字接口

MAX1204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，MAX1204是5V、8通道、串行、10位ADC，3V数字接口，本站介绍了MAX1204的封装应用图解、特点和优点、功能等，并给出了与MAX1204相关的Maxim元器件型号供参考。

MAX1204 - 5V、8通道、串行、10位ADC，3V数字接口 - 数据转换器和采样-保持电路 - 可理想用于10位+5V或±5V模拟、+3V数字供电系统 - 美信半导体

产品概述

The MAX1204 is a 10-bit data-acquisition system specifically designed for use in applications with mixed +5V (analog) and +3V (digital) supply voltages. It operates with a single +5V analog supply or dual ±5V analog supplies, and combines an 8-channel multiplexer, internal track/hold, and serial interface with high conversion speed and low power consumption.

A 4-wire serial interface connects directly to SPI/MICROWIRE® devices without external logic, and a serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1204 uses either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The serial interface operates at up to 2MHz.

The MAX1204 features an internal 4.096V reference and a reference-buffer amplifier that simplifies gain trim. It also has a VL pin that supplies power to the digital outputs. Output logic levels (3V, 3.3V, or 5V) are determined by the value of the voltage applied to this pin.

A hard-wired active-low SHDN pin and two software-selectable power-down modes are provided. Accessing the serial interface automatically powers up the device. A quick turn-on time allows the MAX1204 to be shut down between conversions, enabling the user to optimize supply currents. By customizing power-down between conversions, supply current can drop below 10µA at reduced sampling rates.

The MAX1204 is available in 20-pin SSOP and PDIP packages, and is specified for the commercial and extended temperature ranges.

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

Operates from +5V Single or ±5V Dual Supplies

User-Adjustable Output Logic Levels (2.7V to 5.25V)

Low Power

1.5mA (Operating Mode)

2µA (Power-Down Mode)

Internal Track/Hold, 133kHz Sampling Rate

Internal 4.096V Reference

SPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface

Software-Configurable Unipolar/Bipolar Inputs

20-Pin PDIP/SSOP

Pin-Compatible 12-Bit Upgrade: MAX1202

热门应用

5V/3V混合供电系统

电池供电应用

数据采集

医疗仪器

过程控制

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