MAX6633MSA+

MAX6633MSA+ is a 12-bit plus sign temperature sensor with an SMBus/I2C-compatible serial interface. It combines a temperature sensor, a programmable overtemperature alarm, and an SMBus/I2C-compatible serial interface into a single package. This converts its die temperatures into digital values using internal analogue-to-digital converters (ADCs). The result of the conversion is then held in a temperature register as a 12-bit + sign value, allowing 0.0625°C resolution, readable at any time through the serial interface. It features a shutdown mode that saves power by turning off everything except the power-on reset (POR) and the serial interface. The device can be configured to separate addresses, allowing multiple devices to be used on the same bus. It has four address pins, allowing up to 16 devices to be connected to a single bus. Applications include battery temperature alarms, PC temperature control.

• 3V to +5.5V supply range
• Accuracy is ±0.4°C typ at 0°C ≤ TA=≤ +50°C, VCC=+3.3V
• Power-supply rejection ratio is 0.2°C/V typ at VCC=+3.3V, TA=+25°C
• Supply current in shutdown is 12µA typ at VCC=+3.0V, SMBus inactive, TA=+25°C
• Conversion rate is 2Hz typ at VCC=+3.3V, TA=+25°C
• Output low sink current is 6mA min at VOL=0.6V (SMBDATA, ALERT, OVERT)
• Output leakage current is ±1µA max at ALERT, OVERT at VCC
• Serial clock frequency is 100kHz maximum
• 8 SO package
• Temperature range from -55°C to +150°C

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