DS1851
Dual Temperature-Controlled NV Digital-to-Analog Converters
Temperature Controlled Dual DAC Solves the Most Difficult Temperature Compensation Requirements
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Overview
Features and Benefits
- Two temperature-controlled 8-bit Digital-to-Analog Converters (DACs)
- DAC settings changeable every 4°C
- Access to temperature data and device control through a 2-wire interface
- Operates with +3.3V or +5V supplies
- Packaging: 8-pin TSSOP
- Operating temperature: -40°C to +95°C
- Programming temperature: 0°C to +70°C
Product Details
The DS1851 dual temperature-controlled nonvolatile (NV) DACs consists of two DACs, two EEPROM look-up tables, and a direct-to-digital temperature sensor. Both of the DACs can be programmed with any temperature coefficient, which means that any system temperature effects can be corrected without any additional external devices. The DS1851 provides an ideal method for setting and temperature-compensating bias voltages and currents in control applications using a minimal amount of external circuitry.
The user-defined settings for both DACs are stored in two EEPROM look-up tables and can be accessed over the industry-standard 2-wire serial bus, which consists of SDA and SCL pins. These look-up tables can assign a unique output value to each DAC for every 4°C increment over the -40°C to +95°C range. The output of the digital temperature sensor is also available as a 12-bit, two's complement value over the serial bus.
Applications
- Automated Test Equipment (ATE)
- Automotive Sensors
- Building Energy Management (HVAC)
- Cell Phone Base Stations
- Cell Phones
- Digital Still Cameras
- Industrial Sensor Transmitters/Transducers
- Industrial Sensor Transmitters/Transducers
- Sensor-Force
- Sensors - Accelerometers
- Sensors - Humidity
- Sensors - Piezo-Resistive transducers
- Sensors - Temperature
- Sensors-Pressure
- Test and Measurement Equipment
Product Categories
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
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DS1851 Reliability Data1/12/2023PDF17K
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DS1851 Varactor Temperature Compensation5/29/2003
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Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface3/8/2011
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Introduction to Electronic Calibration and Methods for Correcting Manufacturing Tolerances in Medical Equipment Designs5/10/2010
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Introduction to Electronic Calibration and Methods for Correcting Manufacturing Tolerances in Industrial Equipment Designs5/10/2010
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Interfacing digitally controlled potentiometers and resistors to laser drivers5/10/2002
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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