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MAX6691 Datasheet Four-channel Thermistor Temperature-to-pulse-width Converter

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-2304; Rev 0; 1/02 Four-Channel Thermistor Temperature-to-PulseWidth.

General Description

The MAX6691 four-channel thermistor temperature-topulse-width converter measures the temperatures of up to four thermistors and converts them to a series of output pulses whose widths are related to the thermistors’ temperatures.

Each of the four thermistors and an external fixed resistor (REXT) form a voltage-divider that is driven by the MAX6691’s internal voltage reference (VREF).

VREF and the voltage across REXT are measured and converted to a pulse.

Key Features

  • MAX6691 Ordering Information PART MAX6691MUB TEMP RANGE -55°C to +125°C PIN-.

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