LTC2640 Datasheet | Linear Technology

Features n Integrated Precision Reference 2.5V Full-Scale 10ppm/°C (LTC2640-L) 4.096V Full-Scale 10ppm/°C (LTC2640-H) n Maximum INL Error: 1LSB (LTC2640A-12) n Bidirectional Reference: Input or 10ppm/°C Output n Low Noise (0.7m Vpp, 0.1Hz to 200k Hz) n Guaranteed Monotonic Over Temperature n2.7V to 5.5V Supply Range (LTC2640-L) n Low Power Operation: 180µA at 3V n Power Down to 1.8µA Maximum (C and I Grades) n Asynchronous DAC Clear Pin (LTC2640-Z) n Power-On Reset to Zero or Mid-Scale options n Double-Buffered Data Latches n Guaranteed Operation from - 40°C to 125°C (H-Grade) n8-Lead TSOT-23 (Thin SOT™) Package APPLICATIONS n Mobile munications n Process Control and Industrial Automation n Automatic Test Equipment n Portable Equipment n Automotive n Optical Networking LTC2640 Single 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference DESCRIPTION The LTC®2640 is a family of 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 a rail-to-rail output buffer that is guaranteed monotonic. The LTC2640-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2640-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. A 10ppm/°C reference output is available at the REF pin. Each DAC can also operate in External Reference mode, in which a voltage supplied to the REF pin sets the fullscale output. The LTC2640 DACs use a SPI/MICROWIRE™ patible 3-wire serial interface which operates at clock rates up to 50MHz. The LTC2640 incorporates a power-on reset circuit. Options are available for Reset to Zero-Scale or Reset to Mid-Scale after power-up. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Thin SOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5396245, 5859606, 6891433, 6937178 and...