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Features
- Integrated Precision Reference
- 2.5V Full-Scale 10ppm/°C (LTC2631-L)
- 4.096V Full-Scale 10ppm/°C (LTC2631-H)
- Maximum INL Error: 1LSB (LTC2631A-12)
- Bidirectional Reference: Input or 10ppm/°C Output
- 400kHz I2C Interface
- Nine Selectable Addresses (LTC2631-Z)
- Low Noise (0.7mVP-P , 0.1Hz to 200kHz)
- Guaranteed Monotonic Over Temperature
- 2.7V to 5.5V Supply Range (LTC2631-L)
- Low Power Operation: 180μA at 3V
- Power Down to 1.8μA Maximum (C and I Grades)
- Power-On Reset to Zero or Mid-Scale Options
- Double-Buffered Data Latches
- Guaranteed Operation From –40°C to 125°C (H-Grade)
- 8-Lead TSOT-23 (ThinSOT™) Package
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The LTC2631 is a family of 12-, 10-, and 8-bit voltage-output DACs with an integrated, high accuracy, low-drift reference in an 8-lead TSOT-23 package. It has a rail-to-rail output buffer that is guaranteed monotonic.
The LTC2631-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2631-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. A 10ppm/°C reference output is available at the REF pin.
Each DAC can also operate in External Reference mode, in which a voltage supplied to the REF pin sets the fullscale output.
The LTC2631 DACs use a 2-wire, I2C-compatible serial interface. The LTC2631 operates in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz).
The LTC2631 incorporates a power-on reset circuit. Options are available for reset to zero-scale or reset to mid-scale after power-up.
Applications
- Mobile Communications
- Process Control and Industrial Automation
- Automatic Test Equipment
- Portable Equipment
- Automotive
- Optical Networking
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