MAX1989 - 多通道远端/本地温度传感器

MAX1989是Maxim美信半导体公司的一款1-Wire器件产品，MAX1989是多通道远端/本地温度传感器，本站介绍了MAX1989的封装应用图解、特点和优点、功能等，并给出了与MAX1989相关的Maxim元器件型号供参考。

MAX1989 - 多通道远端/本地温度传感器 - 1-Wire器件 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1668/MAX1805/MAX1989 are precise multichannel digital thermometers that report the temperature of all remote sensors and their own packages. The remote sensors are diode-connected transistors—typically low-cost, easily mounted 2N3904 NPN types—that replace conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The remote channels can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor.

The 2-wire serial interface accepts standard system management bus (SMBus™) write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data. The data format is 7 bits plus sign, with each bit corresponding to 1°C, in two's-complement format.

The MAX1668/MAX1805/MAX1989 are available in small, 16-pin QSOP surface-mount packages. The MAX1989 is also available in a 16-pin TSSOP.

关键特性

以下关键特性由Maxim美信半导体提供：

Multichannel

4 Remote, 1 Local (MAX1668/MAX1989)

2 Remote, 1 Local (MAX1805)

No Calibration Required

SMBus 2-Wire Serial Interface

Programmable Under/Overtemperature Alarms

Supports SMBus Alert Response

Accuracy

±2°C (+60°C to +100°C, Local)

±3°C (-40°C to +125°C, Local)

±3°C (+60°C to +100°C, Remote)

3µA (typ) Standby Supply Current

700µA (max) Supply Current

Small, 16-Pin QSOP/TSSOP Packages

热门应用

局端电信设备

台式计算机/笔记本电脑

工业控制

LAN服务器

多芯片模块

测试与测量设备

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