Description

The G781 is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. It is commonly used in various applications such as desktop and notebook computers, central office, telecom equipment, smart battery packs, test and measurement, LAN servers, multi-chip modules, and industrial controllers. The remote sensor is a diode-connected transistor that can replace conventional thermistors or thermocouples. It offers a high level of accuracy, with a remote accuracy of ±1°C and a local accuracy of ±3°C. The G781 also features a built-in noise filtering function in the remote sensor and supports SMBus 2-Wire Serial Interface.

Specifications and features

The G781 has the following specifications and features:

• Two Channels: Measures Both Remote and Local Temperatures
• No Calibration Required
• Built-in Noise-Buster for Remote Sensor
• SMBus 2-Wire Serial Interface
• Programmable Under/Overtemperature Alarms
• Supports SMBus Alert Response
• Accuracy: ±1°C (+60°C to +100°C, remote) and ±3°C (+60°C to +100°C, local)
• 320µA (typ) Average Supply Current During Conversion
• +3V to +5.5V Supply Range
• Small 8-Lead SOP, MSOP, and TDFN Package
• Remote Temperature Measurement up to 160°C by using offset shifting method (see “Measure Remote Temperature Higher Than 127°C” section)

Application Scenarios

The G781 can be used in the following application scenarios:

• Desktop and Notebook
• Central Office
• Computers
• Telecom Equipment
• Smart Battery Packs
• Test and Measurement
• LAN Servers
• Multi-Chip Modules
• Industrial Controllers

Comparison

Advantages: None

Disadvantages: None