Features and Benefits
- AEC-Q100 Qualified for Automotive Applications
- Integrated Precision Reference
- 2.5V Full-Scale 10ppm/°C (LTC2634-L)
- 4.096V Full-Scale 10ppm/°C (LTC2634-H)
- Maximum INL Error: ±2.5 LSB (LTC2634-12)
- Low Noise: 0.75mVP-P 0.1Hz to 200KHz
The LTC2634 is a family of quad 12-, 10- and 8-bit voltage output DACs with an integrated, high accuracy, low drift 10ppm/°C reference in 16-lead QFN and 10-lead MSOP packages. It has rail-to-rail output buffers and is guaranteed monotonic. The LTC2634-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2634-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 an SPI/MICROWIRE compatible 3-wire serial interface which operates at clock rates up to 50MHz. Serial data output (SDO), a hardware clear (CLR), and an asynchronous DAC update (LDAC) capability are available in the QFN package. The LTC2634 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.
- Mobile Communications
- Process Control and Industrial Automation
- Automatic Test Equipment
- Portable Equipment
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (4)
DC1488A-A: Demo Board for the LTC2634-12 Quad 12-Rail-to-Rail DACs with 10ppm/°C Reference.
DC1488A-C: Demo Board for the LTC2634-12 Quad 12-Rail-to-Rail DACs with 10ppm/°C Reference.
DC1488A-B: Demo Board for the LTC2634-12 Quad 12-Rail-to-Rail DACs with 10ppm/°C Reference.
DC1488A-D: Demo Board for the LTC2634-12 Quad 12-Rail-to-Rail DACs with 10ppm/°C Reference.
Documentation & Resources
R461 Reliability Data3/22/201831 K
DC1488A - Demo Manual4/21/2011750K
DAC Selector Card9/21/2015587K
PWM to DC in One Cycle8/7/2014509K
Voltage Output DACs3/3/2011797K
LTC263x Video Product Brief10/15/2018
Tools & Simulations
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Linduino code repository on GitHub and instructions on how to use the code.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.