The LTC2633 is a family of dual 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 rail-to-rail output buffers and is guaranteed monotonic. The LTC2633-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2633-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. Each DAC can also operate with an external reference, which sets the full-scale output to the external reference voltage.
These DACs communicate via a 2-wire I2C-compatible serial interface. The LTC2633 operates in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). The LTC2633 incorporates a power-on reset circuit. Options are available for reset to zero-scale, reset to mid-scale in internal reference mode, reset to mid-scale in external reference mode, or reset with all DAC outputs in a high impedance state after power-up.
Feature
- Integrated Precision Reference
- 2.5V Full-Scale 10ppm/°C (LTC2633-L)
- 4.096V Full-Scale 10ppm/°C (LTC2633-H)
- Maximum INL Error: ±1.5LSB (LTC2633A-12)
- Low Noise: 0.75mVP-P 0.1Hz to 200kHz
- Guaranteed Monotonic Over –40°C to 125°C Temperature Range
- Selectable Internal or External Reference
- 2.7V to 5.5V Supply Range (LTC2633-L)
- Low Power: 0.4mA at 3V
- Power-on-Reset to Zero-Scale/Mid-Scale/Hi-Z
- Double-Buffered Data Latches
- 8-Lead ThinSOT™ Package
Applications
- Mobile Communications
- Process Control and Industrial Automation
- Power Supply Margining
- Portable Equipment
- Automotive
