LTC1663 10-Bit Rail-to-Rail Micropower DAC with 2-Wire Interface FEATURES DESCRIPTION n Micropower 10-Bit DAC in SOT-23 The LTC 1663 is a 10-bit voltage output DAC with true n Low Operating Current: 60A buffered rail-to-rail output voltage capability. It operates n Ultralow Power Shutdown Mode: 10A from a single supply with a range of 2.7V to 5.5V. The n 2-Wire Serial Interface Compatible reference for the DAC is selectable between the supply with SMBus voltage or an internal bandgap reference. Selecting the n Selectable Internal Reference or Ratiometric to internal bandgap reference will set the full-scale output V voltage range to 2.5V. Selecting the supply as the reference CC n Maximum DNL Error: 0.75LSB sets the output voltage range to the supply voltage. n 8 User Selectable Addresses (MSOP Package) The part features a simple 2-wire serial interface compat- n Single 2.7V to 5.5V Operation ible with SMBus that allows communication between many n Buffered True Rail-to-Rail Voltage Output devices. The internal data registers are double buffered to n Power-On Reset allow for simultaneous update of several devices at once. n 0.6V V and 1.4V V for SDA and SCL IL IH The DAC can be put in low current power-down mode for n Small 5-Lead SOT-23 and 8-Lead MSOP Packages use in power conscious systems. APPLICATIONS Power-on reset ensures the DAC output is at 0V when power is initially applied, and all internal registers are n Digital Calibration cleared. n Offset/Gain Adjustment 2 n For I C designs, please refer to the LTC1669. Industrial Process Control n Automatic Test Equipment L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Arbitrary Function Generators n Battery-Powered Data Conversion Products BLOCK DIAGRAM 4 (5) V CC Differential Nonlinearity (DNL) BANDGAP 1.25V 1.0 REFERENCE V = V = 5V REF CC 0.8 T = 25C A 0.6 REFERENCE SELECT 0.4 0.2 0 10-BIT 0.2 + DAC LATCH V 3 (8) OUT 0.4 0.6 0.8 R COMMAND INPUT MSOP LATCH LATCH PACKAGE 1.0 0 512 768 896 28 156 384 640 1024 ONLY R CODE (6) AD0 1663 TA01 (2) AD1 2-WIRE INTERFACE (3) AD2 SDA SCL GND 1663 BD 1 (1) 5 (4) 2 (7) NOTE: PIN NUMBERS IN PARENTHESES REFER TO THE MSOP PACKAGE 1663fd 1 ERROR (LSB)LTC1663 (Note 1) ABSOLUTE MAXIMUM RATINGS V to GND .............................................. 0.3V to 7.5V Operating Temperature Range CC SDA, SCL ................................................. 0.3V to 7.5V LTC1663C ............................................... 0C to 70C AD0, AD1, AD2 (MSOP Only) ........0.3V to (V + 0.3V) LTC1663I............................................. 40C to 85C CC V .............................................0.3V to (V + 0.3V) LTC1663E (Note 8) .............................. 40C to 85C OUT CC Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ................. 300C PACKAGE/ORDER INFORMATION ORDER PART ORDER PART NUMBER NUMBER TOP VIEW TOP VIEW LTC1663CMS8 LTC1663CS5 SDA 1 8 V SDA 1 5 SCL OUT LTC1663IMS8 LTC1663-1CS5 AD1 2 7 GND GND 2 AD2 3 6 AD0 LTC1663-8CMS8 LTC1663-2CS5 SCL 4 5 V V 3 4 V CC OUT CC LTC1663-8IMS8 LTC1663ES5 MS8 PACKAGE S5 PACKAGE 8-LEAD PLASTIC MSOP 5-LEAD PLASTIC SOT-23 T = 125C, = 150C/W JMAX JA MS8 PART MARKING S5 PART MARKING* T = 125C, = 250C/W JMAX JA LTEQ LTA6 LTEP LTSB LTJJ LTA7 LTSA LTEP Order Options Tape and Reel: Add TR Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking: