MAX6677
Low-Voltage, 1.8kHz PWM Output Temperature Sensors
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Industry's Lowest Voltage PWM Output Temperature Sensor in Tiny SOT23 Package
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Features
- Simple Single-Wire, 1.8kHz PWM Output
- Operates Down to 1.8V
- High Accuracy
- ±1.5°C at TA= +25°C
- ±3.0°C at TA = 0°C to +85°C
- Operates from -40°C to +125°C
- Low 80µA Typical Current Consumption
- Small 6-Pin SOT23 Package
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The MAX6676/MAX6677 are high-accuracy, low-power temperature sensors with a single-wire output. The MAX6676/MAX6677 convert the ambient temperature into a ratiometric PWM output with temperature information contained in the duty cycle of the output square wave. The MAX6676 has an open-drain output and the MAX6677 has a push-pull output.
The MAX6676/MAX6677 are specified for operation with power-supply voltages from 1.8V to 3.6V, or from 3.6V to 5.5V (MAX6676 only). The typical unloaded supply current is 80µA. All devices feature a single-wire output that minimizes the number of pins necessary to interface with a microprocessor (µP). The output is a square wave with a nominal frequency of 1.8kHz (±20%) at +25°C. The output format is decoded as follows:
Temperature (°C) = 398.15 x (t1 / t2) - 273.15Where t1 is fixed with a typical value of 0.24ms and t2 is modulated by the temperature. The MAX6676/ MAX6677 operate from -40°C to +125°C and are available in space-saving 6-pin SOT23 packages.
Applications
- HVAC and Environmental Control
- Industrial
- Isolated Temperature Sensing
- Portable Devices
- Process Control
- µP and µC Temperature Monitoring
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MAX6677
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Software & Part Ecosystem
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PWM Output Temperature Sensors in SC70 Packages |
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High-Accuracy PWM Output Temperature Sensors |
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PWM Output Temperature Sensors in SC70 Packages |
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