CXHA3183 build-in noise filtering function in remote sensor measuring the diode temperature. The remote channel can also measure the die temperature of other ICs, such as microprocessors, that contain

   产品概述 返回TOPboa嘉泰姆

The CXHA3183 is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. The remote sensor is a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type that replace conventional thermistors or thermocouples. Remote accuracy is ±1°C with no calibration needed. It also has a build-in noise filtering function in remote sensor measuring the diode temperature. The remote channel 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 11bits plus sign, with each bit corresponding to 0.125°C, in two’s-complement format. Measurements can be done automatically and autonomously, with the conversion rate programmed by the user or programmed to operate in a single-shot mode. The adjustable rate allows the user to control the supply current drain. The CXHA3183 and CXHA3183-1 have the same functions but different SMBus slave addresses. This allows for one of each to be on the bus at the same time. The CXHA3183 is available in a small, 8-pin SOP and MSOP surface-mount package.

   产品特点 返回TOPboa嘉泰姆

„ Two Channels: Measures Both Remote and Local Temperatures boa嘉泰姆

„ No Calibration Required boa嘉泰姆

„ Built-in Noise-Buster for Remote Sensor boa嘉泰姆

„ SMBus 2-Wire Serial Interface boa嘉泰姆

„ Programmable Under/Overtemperature Alarms boa嘉泰姆

„ Supports SMBus Alert Response boa嘉泰姆

„ Accuracy: ±1°C (+60°C to +100°C, remote) ±3°C (+60°C to + 100°C, local) boa嘉泰姆

„ 320μA (typ) Average Supply Current During Conversion boa嘉泰姆

„ +3V to +5.5V Supply Range boa嘉泰姆

„ Small 8-Lead SOP and MSOP Package boa嘉泰姆

„ Remote Temperature Measurment up to 160°C by using offset shifting method (see “Measure Remote Temperature Higher Than 127°C” section)boa嘉泰姆

   应用范围 返回TOPboa嘉泰姆

Desktop and Notebook boa嘉泰姆

Central Office boa嘉泰姆

Computers boa嘉泰姆

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Test and Measurement boa嘉泰姆

LAN Servers boa嘉泰姆

Multi-Chip Modules boa嘉泰姆

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