LTC2654 Datasheet | Linear Technology

.. Features n n n n n n n n n n n LTC2654 Quad 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference DESCRIPTION The LTC®2654 is a family of quad 16-/12-bit rail-to-rail DACs with integrated 10ppm/°C maximum reference . The DACs have built-in high performance, rail-to-rail, output buffers and are guaranteed monotonic. The LTC2654-L has a full-scale output of 2.5V with the integrated reference and operates from a single 2.7V to 5.5V supply. The LTC2654-H has a full-scale output of 4.096V with the integrated reference 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 2 times the external reference voltage. These DACs municate via a SPI/MICROWIRE patible 4-wire serial interface which operates at clock rates up to 50MHz. The LTC2654 incorporates a power-on reset circuit that is controlled by the PORSEL pin. If PORSEL is tied to GND the DACs reset to zero-scale. If PORSEL is tied to VCC, the DACs reset to mid-scale. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5396245, 6891433 and patent pending. Precision Reference 10ppm/°C Max Maximum INL Error: ±4LSB at 16-Bits Low ±2m V (Max) Offset Error Guaranteed Monotonic Over Temperature Selectable Internal or External Reference 2.7V to 5.5V Supply Range (LTC2654-L) Integrated Reference Buffers Ultralow Crosstalk Between DACs (<3n V- s) Power-on-Reset to Zero-Scale/Mid-Scale Asynchronous DAC Update Pin Tiny 20-Lead 4mm × 4mm QFN and 16-Lead Narrow SSOP Packages APPLICATIONS n n n n n Mobile munications Process Control and Industrial Automation Instrumentation Automatic Test Equipment Automotive BLOCK DIAGRAM REFP GND REFLO REGISTER REGISTER REGISTER REGISTER VOUTA DAC A DAC D VOUTD 3 2 INL (LSB) 1 0 - 1 - 2 - 3 CONTROL LOGIC SCK SDI LDAC 32-BIT...