LTC2664 Quad 16-Bit/12-Bit 10V V SoftSpan DACs with OUT 10ppm/C Max Reference Features Description n Precision Reference 10ppm/C Max The LTC 2664 is a family of four-channel, 16-/12-bit 10V n Independently Programmable Output Ranges: digital-to-analog converters with integrated precision references. They are guaranteed monotonic and have 0V to 5V, 0V to 10V, 2.5V, 5V, 10V n built-in rail-to-rail output buffers. These SoftSpan DACs Full 16-Bit/12-Bit Resolution at All Ranges n offer five output ranges up to 10V. The range of each Maximum INL Error: 4LSB at 16 Bits n channel is independently programmable, or the part can A/B Toggle via Software or Dedicated Pin n be hardware-configured for operation in a fixed range. Analog Multiplexer with Auxiliary Inputs n Guaranteed Monotonic Over Temperature The integrated 2.5V reference is buffered separately to each n Internal or External Reference channel an external reference can be used for additional n Outputs Drive 10mA Guaranteed range options. The LTC2664 also includes A/B toggle n 1.8V to 5V SPI Serial interface capability via a dedicated pin or software toggle command. n 32-Lead (5mm 5mm) QFN Package The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates a up to 50MHz. n Optical Networking L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and n Instrumentation SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6891433, 5859606, 5936245, n Data Acquisition 7671770. n Automatic Test Equipment n Process Control and Industrial Automation Block Diagram Integral Nonlinearity (LTC2664-16) REFCOMP REF 26 INTERNAL REFERENCE 25 4 V 28 CC OVRTMP 30 10V RANGE CLR 24 GND 3 V V 11, 29 REF REF + 7 V REFLO 2 10, 27 8 V MUX MUX MUXIN0 2 23 MUXIN3 1 V 22 V OUT0 3 DAC 0 DAC 3 OUT3 0 1 2 V V REF REF 3 MUX MUX 4 0 16384 32768 49152 65535 V 4 DAC 1 DAC 2 21 V OUT1 OUT2 CODE 2664 TA01b 20 MUXIN2 MUXIN1 5 12 LDAC CS/LD 13 17 TGP SCK 14 CONTROL LOGIC DECODE MSP0 31 SDI 16 32 MSP1 32-BIT SHIFT REGISTER POWER-ON RESET 15 SDO 1 MSP2 MUXOUT 9 MONITOR MUX TOGGLE SELECT REGISTER 18 IOV CC 2664 BD 2664fa 1 For more information www.linear.com/LTC2664 SPAN REGISTER SPAN REGISTER SPAN SPAN RGSTR B RGSTR A RGSTR B RGSTR A RGSTR B RGSTR A RGSTR B RGSTR A SPAN SPAN SPAN REGISTER SPAN REGISTER INL (LSB) pplicationsLTC2664 aB m r p c F (Notes 1, 2) TOP VIEW Analog Supply Voltage (V ) ....................... 0.3V to 6V CC Digital I/O Voltage (IOV ) ........................... 0.3V to 6V CC REFLO ....................................................... 0.3V to 0.3V + 32 31 30 29 28 27 26 25 V ............................................................ 0.3V to 16.5V MSP2 1 24 CLR V ..........................................................16.5V to 0.3V MUXIN0 2 23 MUXIN3 CS/LD, SCK, SDI, LDAC, CLR, TGP .............. 0.3V to 6V V V 3 22 OUT0 OUT3 MSP0, MSP1, MSP2 ........0.3V to Min (V + 0.3V, 6V) CC V 4 21 V OUT1 OUT2 33 V to V , MUXIN0 to MUXIN3, OUT0 OUT3 MUXIN1 5 20 MUXIN2 + MUXOUT ............... V 0.3V to V + 0.3V (Max 16.5V) DNC 6 19 DNC + REF, REFCOMP ................0.3V to Min (V + 0.3V, 6V) V 7 18 IOV CC CC V 8 17 TGP SDO ............................. 0.3V to Min (IOV + 0.3V, 6V) CC 9 10 11 12 13 14 15 16 OVRTMP ....................................................... 0.3V to 6V Operating Temperature Range LTC2664C ................................................ 0C to 70C LTC2664I .............................................40C to 85C UH PACKAGE 32-LEAD (5mm 5mm) PLASTIC QFN LTC2664H .......................................... 40C to 125C T = 150C, = 44C/W JMAX JA Maximum Junction Temperature .......................... 150C EXPOSED PAD IS V , MUST BE SOLDERED TO PCB Storage Temperature Range .................. 65C to 150C 2664fa 2 For more information www.linear.com/LTC2664 MUXOUT MSP1 REFLO MSP0 GND OVRTMP LDAC GND CS/LD V CC SCK REFLO SDO REFCOMP SDI REF iguration on in atings aximum solute