The LTC2632 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 LTC2632-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2632-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 simple SPI/MICROWIRE compatible 3-wire serial interface which operates at clock rates up to 50MHz. The LTC2632 incorporates a power-on reset circuit. Options are available for reset to zero-scale or reset to mid-scale in internal reference mode, or reset to mid-scale in external reference mode after power-up.
Feature
- Integrated Precision Reference
- 2.5V Full-Scale 10ppm/°C (LTC2632-L)
- 4.096V Full-Scale 10ppm/°C (LTC2632-H)
- Maximum INL Error: ±1.5LSB (LTC2632A-12)
- Low Noise: 0.75mVP-P 0.1Hz to 200kHz
- Guaranteed Monotonic –40°C to 125°C Automotive Temperature Range
- Selectable Internal or External Reference
- 2.7V to 5.5V Supply Range (LTC2632-L)
- Low Power Operation 0.4mA at 3V
- Power-On-Reset to Zero-Scale/Mid-Scale
- Double-Buffered Data Latches
- 8-Lead ThinSOT™ Package
Applications
- Mobile Communications
- Process Control and Industrial Automation
- Automatic Test Equipment
- Portable Equipment
- Automotive
