Features: `Two Channels: Measures Both Remote and Local Temperatures
`No Calibration Required
`SMBus 2-Wire Serial Interface
`Programmable Under/Overtemperature Alarms
`Supports SMBus Alert Response
`Accuracy:
±2 (+60 to + 100, local)
±3 (-40 to +125, local)
±3 (+60 to +100, remote)
`3A (typ) Standby Supply Current
`70A (max) Supply Current in Auto- Convert Mode
`+3V to +5.5V Supply Range
`Small, 16-Pin SSOP PackageApplicationDesktop and Notebook
Central Office
Computers
Telecom Equipment
Smart Battery Packs
Test and Measurement
LAN Servers
Multi-Chip Modules
Industrial ControlsPinout
SpecificationsVcc to GND..........................-0.3V to +6V
DXP, ADD to GND..............-0.3V to (Vcc + 0.3V)
DXN to GND........................-0.3V to +0.8V
SMBCLK, SMBDATA, ALERT , STBY to GND....
..............................-0.3V to +6V
SMBDATA, ALERT Current..............-1mA to +50mA
DXN Current..........................±1mA
ESD Protection (SMBCLK, SMBDATA, ALERT ,
human body model)......................4000V
ESD Protection (other pins, human body model).2000V
Continuous Power Dissipation (TA = +70)
SSOP(derate 8.30mW/ above +70)..... ...667mW
Operating Temperature Range...... -55 to +125
Junction Temperature............. +150°C
Storage temperature Range.... .-65 to +165
Reflow Temperature (soldering, 10sec)........260
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe G767 is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. The remote sensor of G767 is a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type-that replace conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. 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 (SMBusTM) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data.The data format of G767 is 7 bits plus sign, with each bit corresponding to 1°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 of G767 allows the user to control the supply-current drain.
The G767 is available in a small, 16-pin SSOP surface- mount package.
G767 Data Sheet
