Description
The LTC®2633 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.

FEATUREs
■ Integrated Precision Reference
   2.5V Full-Scale 10ppm/°C (LTC2633-L)
   4.096V Full-Scale 10ppm/°C (LTC2633-H)
■ Maximum INL Error: ±1LSB (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