The MAX6628MTA+T is a remote ±1°C accurate digital temperature sensor with SPI-compatible serial interface in 8 pin TDFN package. This remote sensor is a diode connected transistor, typically a low cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. The device can also measure die temperature of other ICs, such as microprocessors (µPs) or microcontrollers (µCs) that contain an on-chip, diode connected transistor. Remote accuracy is ±1°C when temperature of remote diode is between 0°C and +125°C and temperature of device is +30°C. Temperature is converted to a 12bit +sign word with 0.0625°C resolution. The architecture of device is capable of interpreting data as high as +145°C from remote sensor. This sensor is 3-wire serial interface SPI-compatible, allowing IC to be readily connected to a variety of µCs and are read only device, simplifying its use in systems where only temperature data is required.
● Supply voltage range is 3V to 5.5V
● Operating temperature range from -55°C to 125°C
● Low power consumption of 200µA (typ)
● Measurement temperature range, remote junction (-55°C to +145°C)
● 0.8s conversion rate
● SPI-compatible interface
● Maximum power supply sensitivity is 0.7°C/V
● Resolution of 0.0625°C
● Maximum conversion time of 320ms
● Average operating current is 400µA (max)
