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LTC2664 Dataheets PDF



Part Number LTC2664
Manufacturers Linear Technology
Logo Linear Technology
Description SoftSpan DACs
Datasheet LTC2664 DatasheetLTC2664 Datasheet (PDF)

Features nn Precision Reference 10ppm/°C Max nn Independently Programmable Output Ranges: 0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V nn Full 16-Bit/12-Bit Resolution at All Ranges nn Maximum INL Error: ±4LSB at 16 Bits nn A/B Toggle via Software or Dedicated Pin nn Analog Multiplexer with Auxiliary Inputs nn Guaranteed Monotonic Over Temperature nn Internal or External Reference nn Outputs Drive ±10mA Guaranteed nn 1.8V to 5V SPI Serial interface nn 32-Lead (5mm × 5mm) QFN Package Applications nn Opt.

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Features nn Precision Reference 10ppm/°C Max nn Independently Programmable Output Ranges: 0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V nn Full 16-Bit/12-Bit Resolution at All Ranges nn Maximum INL Error: ±4LSB at 16 Bits nn A/B Toggle via Software or Dedicated Pin nn Analog Multiplexer with Auxiliary Inputs nn Guaranteed Monotonic Over Temperature nn Internal or External Reference nn Outputs Drive ±10mA Guaranteed nn 1.8V to 5V SPI Serial interface nn 32-Lead (5mm × 5mm) QFN Package Applications nn Optical Networking nn Instrumentation nn Data Acquisition nn Automatic Test Equipment nn Process Control and Industrial Automation LTC2664 Quad 16-Bit/12-Bit ±10V VOUT SoftSpan DACs with 10ppm/°C Max Reference Description The LTC®2664 is a family of four-channel, 16-/12-bit ±10V digital-to-analog converters with integrated precision references. They are guaranteed monotonic and have built-in rail-to-rail output buffers. These SoftSpan™ DACs offer five output ranges up to ±10V. The range of each channel is independently programmable, or the part can be hardware-configured for operation in a fixed range. The integrated 2.5V reference is buffered separately to each channel; an external reference can be used for additional range options. The LTC2664 also includes A/B toggle capability via a dedicated pin or software toggle command. The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and 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, 7671770. Block Diagram REFCOMP 26 OVRTMP 30 GND 11, 29 REFLO 10, 27 MUXIN0 2 VOUT0 3 VREF DAC 0 INTERNAL REFERENCE MUX MUX VREF DAC 3 25 REF 28 VCC 24 CLR 7 V+ 8 V– 23 MUXIN3 22 VOUT3 RGSTR B RGSTR A SPAN SPAN REGISTER SPAN REGISTER SPAN RGSTR B RGSTR A RGSTR B RGSTR A SPAN SPAN REGISTER SPAN REGISTER SPAN RGSTR B RGSTR A VREF VOUT1 4 MUXIN1 5 CS/LD 13 SCK 14 SDI 16 SDO 15 MUXOUT 9 DAC 1 VREF MUX MUX DAC 2 21 VOUT2 20 MUXIN2 CONTROL LOGIC DECODE 12 LDAC 17 TGP 31 MSP0 32-BIT SHIFT REGISTER POWER-ON RESET MONITOR MUX TOGGLE SELECT REGISTER 32 MSP1 1 MSP2 18 IOVCC 2664 BD INL (LSB) Integral Nonlinearity (LTC2664-16) 4 ±10V RANGE 3 2 1 0 –1 –2 –3 –4 0 16384 32768 CODE 49152 65535 2664 TA01b For more information www.linear.com/LTC2664 2664fa 1 LTC2664 Absolute Maximum Ratings (Notes 1, 2) Analog Supply Voltage (VCC)........................ –0.3V to 6V Digital I/O Voltage (IOVCC)............................ –0.3V to 6V REFLO........................................................ –0.3V to 0.3V V+............................................................ –0.3V to 16.5V V–.............................................................–16.5V to 0.3V CS/LD, SCK, SDI, LDAC, CLR, TGP............... –0.3V to 6V MSP0, MSP1, MSP2.........–0.3V to Min (VCC + 0.3V, 6V) VOUT0 to VOUT3, MUXIN0 to MUXIN3, MUXOUT................ V– – 0.3V to V+ + 0.3V (Max ±16.5V) REF, REFCOMP.................–0.3V to Min (VCC + 0.3V, 6V) SDO.............................. –0.3V to Min (IOVCC + 0.3V, 6V) OVRTMP........................................................ –0.3V to 6V Operating Temperature Range LTC2664C................................................. 0°C to 70°C LTC2664I..............................................–40°C to 85°C LTC2664H........................................... –40°C to 125°C Maximum Junction Temperature........................... 150°C Storage Temperature Range................... –65°C to 150°C Pin Configuration TOP VIEW MSP1 MSP0 OVRTMP GND VCC REFLO REFCOMP REF 32 31 30 29 28 27 26 25 MSP2 1 24 CLR MUXIN0 2 23 MUXIN3 VOUT0 3 VOUT1 4 MUXIN1 5 22 VOUT3 33 21 VOUT2 20 MUXIN2 DNC 6 V+ 7 V– 8 19 DNC 18 IOVCC 17 TGP 9 10 11 12 13 14 15 16 MUXOUT REFLO GND LDAC CS/LD SCK SDO SDI UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 150°C, θJA = 44°C/W EXPOSED PAD IS V–, MUST BE SOLDERED TO PCB 2664fa 2 For more information www.linear.com/LTC2664 Order Information http://www.linear.com/product/LTC2664#orderinfo LTC2664 C UH 16 #TR PBF LEAD FREE DESIGNATOR PBF = Lead Free TAPE AND REEL TR = 2500-Piece Tape and Reel RESOLUTION 16 = 16-Bit 12 = 12-Bit PACKAGE TYPE UH = 32-Lead QFN TEMPERATURE GRADE C = Commercial Temperature Range (0°C to 70°C) I = Industrial Temperature Range (–40°C to 85°C) H = Automotive Temperature Range (–40°C to 125°C) PRODUCT PART NUMBER LTC2664 For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Product Selection Guide LE.


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