LTC1659 12-Bit Rail-to-Rail Micropower DAC in MSOP Package FEATURES DESCRIPTION Buffered True Rail-to-Rail Voltage Output The LTC 1659 is a single supply, rail-to-rail voltage output, Maximum DNL Error: 0.5LSB 12-bit digital-to-analog converter (DAC) in an MSOP pack- 12-Bit Resolution age. It includes a rail-to-rail output buffer ampli er and an Supply Operation: 3V to 5V easy-to-use 3-wire cascadable serial interface. Output Swings from 0V to V REF The LTC1659 output swings from 0V to REF. The REF input V Can Tie to V REF CC can be tied to V which can range from 2.7V to 5.5V. CC Schmitt Trigger On Clock Input Allows Direct This allows a rail-to-rail output swing from 0V to V . The CC Optocoupler Interface LTC1659 draws only 250A from a 5V supply. Power-On Reset Clears DAC to 0V Its guaranteed 0.5LSB maximum DNL makes the LTC1659 3-Wire Cascadable Serial Interface excel in calibration, control and trim/adjust applications. Low Cost The low power supply current and the small MSOP 8-Lead SO and MSOP Packages package make the LTC1659 ideal for battery-powered APPLICATIONS applications. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Digital Calibration All other trademarks are the property of their respective owners. Industrial Process Control Automatic Test Equipment Cellular Telephones TYPICAL APPLICATION Functional Block Diagram: 12-Bit Rail-to-Rail DAC Differential Nonlinearity vs Input Code 2.7V TO 5.5V 86 0.5 V REF CC 2 D IN + V OUT RAIL-TO-RAIL 7 1 CLK 12-BIT VOLTAGE P SHIFT OUTPUT 12-BIT REG 3 CS/LD DAC 0 AND DAC LATCH 4 D OUT POWER-ON TO RESET OTHER 0.5 DACS GND 0 512 1024 1536 2048 2560 3072 3584 4095 1659 TA01 CODE 5 1659 TA02 1659fa 1 DNL ERROR (LSB) LTC1659 ABSOLUTE MAXIMUM RATINGS (Note 1) V to GND ............................................... 0.5V to 7.5V Operating Temperature Range CC Logic Inputs to GND ................................. 0.5V to 7.5V LTC1659CS8 ............................................ 0C to 70C V .................................................0.5V to V + 0.5V LTC1659IS8 ......................................... 40C to 85C OUT CC Maximum Junction Temperature .......................... 125C LTC1659CMS8 ......................................... 0C to 70C Storage Temperature Range ................... 65C to 150C LTC1659IMS8 ...................................... 40C to 85C Lead Temperature (Soldering, 10 sec) .................. 300C PIN CONFIGURATION TOP VIEW TOP VIEW CLK 1 8 V CC CLK 1 8 V CC D 2 V 7 IN OUT D 2 7 V IN OUT CS/LD 3 6 REF CS/LD 3 6 REF D 4 5 GND OUT D 4 5 GND OUT MS8 PACKAGE 8-LEAD PLASTIC MSOP S8 PACKAGE T = 150C, = 140C/W JMAX JA 8-LEAD PLASTIC SO T = 125C, = 160C/W JMAX JA ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC1659CS8 PBF LTC1659CS8 TRPBF 1659 8-Lead Plastic SO 0C to 70C LTC1659IS8 PBF LTC1659IS8 TRPBF 1659I 8-Lead Plastic SO 40C to 85C LTC1659CMS8 PBF LTC1659CMS8 TRPBF LTCK 8-Lead Plastic MSOP 0C to 70C LTC1659IMS8 PBF LTC1659IMS8 TRPBF LTCK 8-Lead Plastic MSOP 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based nish parts. For more information on lead free part marking, go to: