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MAX6657 Datasheet Smbus-compatible Remote/local Temperature Sensors

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-2034; Rev 5; 10/10 MAX6657/MAX6658/MAX6659 ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms.

General Description

The MAX6657/MAX6658/MAX6659 are precise, twochannel digital temperature sensors.

Each accurately measures the temperature of its own die and one remote PN junction, and reports the temperature in digital form on a 2-wire serial interface.

The remote junction can be a diode-connected transistor like the low-cost NPN type 2N3904 or 2N3906 PNP type.

Key Features

  • o Dual Channel Measures Remote and Local Temperature o 11-Bit, +0.125°C Resolution o High Accuracy ±1°C (max) from +60°C to +100°C (Remote) o No Calibration Required o Programmable Under/Overtemperature Alarms o Programmable Conversion Rate (0.0625Hz to 16Hz) o SMBus/I2C-Compatible Interface o Two Alarm Outputs: ALERT and OVERT1 (MAX6657 and MAX6658) o Three Alarm Outputs: ALERT, OVERT1, and OVERT2 (MAX6659) o Compatible with 65nm Process Technology (Y Versions) Ordering Information PART MEASU.

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