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LTC2655 Dataheets PDF



Part Number LTC2655
Manufacturers Linear Technology
Logo Linear Technology
Description 16-/12-Bit Rail-to-Rail DACs
Datasheet LTC2655 DatasheetLTC2655 Datasheet (PDF)

DataSheet.in FEATURES n n n n n n n n n n LTC2655 Quad I2C 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference DESCRIPTION The LTC®2655 is a family of Quad I2C 16-/12-Bit Rail-toRail DACs with integrated 10ppm/°C max reference. The DACs have built-in high performance, rail-to-rail, output buffers and are guaranteed monotonic. The LTC2655-L has a full-scale output of 2.5V with the integrated reference and operates from a single 2.7V to 5.5V supply. The LTC2655-H has a full-scale output of .

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DataSheet.in FEATURES n n n n n n n n n n LTC2655 Quad I2C 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference DESCRIPTION The LTC®2655 is a family of Quad I2C 16-/12-Bit Rail-toRail DACs with integrated 10ppm/°C max reference. The DACs have built-in high performance, rail-to-rail, output buffers and are guaranteed monotonic. The LTC2655-L has a full-scale output of 2.5V with the integrated reference and operates from a single 2.7V to 5.5V supply. The LTC2655-H has a full-scale output of 4.096V with the integrated reference and operates from a 4.5V to 5.5V supply. Each DAC can also operate with an external reference, which sets the full-scale output to 2 times the external reference voltage. The parts use the 2-wire I2C compatible serial interface. The LTC2655 operates in both the standard mode (maximum clock rate of 100kHz) and the fast mode (maximum clock rate of 400kHz). The LTC2655 incorporates a power-on reset circuit that is controlled by the PORSEL pin. If PORSEL is tied to GND the DACs power-on reset to zero-scale. If PORSEL is tied to VCC, the DACs power-on reset to mid-scale. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5396245, 6891433 and 7671770. Integrated Reference 10ppm/°C Max Maximum INL Error: ±4LSB at 16 Bits Guaranteed Monotonic Over Temperature Selectable Internal or External Reference 2.7V to 5.5V Supply Range (LTC2655-L) Integrated Reference Buffers Ultralow Crosstalk Between DACs (<1nV•s) Power-On-Reset to Zero-Scale/Mid-Scale Asynchronous DAC Update Pin Tiny 20-Lead 4mm × 4mm QFN and 16-Lead Narrow SSOP packages APPLICATIONS n n n n n Mobile Communications Process Control and Industrial Automation Instrumentation Automatic Test Equipment Automotive BLOCK DIAGRAM REFCOMP GND REFLO REGISTER REGISTER REGISTER REGISTER VOUTA DAC A DAC D VOUTD INL (LSB) INTERNAL REFERENCE REFIN/OUT INL Curve VCC 4 3 2 1 0 –1 DAC C VOUTC –2 –3 POWER-ON RESET PORSEL –4 128 16384 32768 CODE 49152 65535 2655 TA01b VCC = 5V REGISTER REGISTER REGISTER VOUTB CA0 CA1 DAC B 32-BIT SHIFT REGISTER CA2 SCL LDAC 2-WIRE INTERFACE REGISTER SDA 2655 BD 2655f 1 DataSheet.in LTC2655 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Supply Voltage (VCC) ................................... –0.3V to 6V SCL, SDA, LDAC, REFLO .............................. –0.3V to 6V VOUTA to VOUTD ................–0.3V to Min (VCC + 0.3V, 6V) REFIN/OUT, REFCOMP .....–0.3V to Min (VCC + 0.3V, 6V) PORSEL, CA0, CA1, CA2 ..–0.3V to Min (VCC + 0.3V, 6V) Operating Temperature Range LTC2655C ................................................ 0°C to 70°C LTC2655I .............................................–40°C to 85°C Maximum Junction Temperature .......................... 150°C Storage Temperature Range ......................–65 to 150°C Lead Temperature, GN Only (Soldering, 10 sec).... 300°C PIN CONFIGURATION TOP VIEW REFLO GND DNC DNC 15 DNC 14 VOUTD 21 GND 13 VOUTC 12 PORSEL 11 CA0 6 CA2 7 SCL 8 DNC 9 10 SDA CA1 TOP VIEW REFLO VOUTA REFCOMP VOUTB REFIN/OUT LDAC CA2 SCL 1 2 3 4 5 6 7 8 16 GND 15 VCC 14 VOUTD 13 VOUTC 12 PORSEL 11 CA0 10 CA1 9 SDA VOUTA 1 REFCOMP 2 VOUTB 3 REFIN/OUT 4 LDAC 5 VCC 20 19 18 17 16 GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 150°C, θJA = 110°C/W UF PACKAGE 20-LEAD (4mm s 4mm) PLASTIC QFN TJMAX = 150°C, θJA = 37°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB 2655f 2 DataSheet.in LTC2655 ORDER INFORMATION LTC2655 B C UF –L 16 #TR PBF LEAD FREE DESIGNATOR TAPE AND REEL TR = Tape and Reel RESOLUTION 16 = 16-Bit 12 = 12-Bit FULL-SCALE VOLTAGE, INTERNAL REFERENCE MODE L = 2.5V H = 4.096V PACKAGE TYPE UF = 20-Lead (4mm × 4mm) Plastic QFN GN = 16-Lead Narrow SSOP TEMPERATURE GRADE C = Commercial Temperature Range (0°C to 70°C) I = Industrial Temperature Range (–40°C to 85°C) ELECTRICAL GRADE (OPTIONAL) B = ±4LSB Maximum INL (16-Bit) PRODUCT PART NUMBER Consult LTC Marketing for information on non-standard lead based finish parts. Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ 2655f 3 DataSheet.in LTC2655 PRODUCT SELECTION GUIDE LEAD FREE FINISH LTC2655BCGN-L16#PBF LTC2655BIGN-L16#PBF LTC2655BCUF-L16#PBF LTC2655BIUF-L16#PBF LTC2655BCGN-H16#PBF LTC2655BIGN-H16#PBF LTC2655BCUF-H16#PBF LTC2655BIUF-H16#PBF LTC2655CGN-L12#PBF LTC2655IGN-L12#PBF LTC2655CUF-L12#PBF LTC2655IUF-L12#PBF LTC2655CGN-H12#PBF LTC2655IGN-H12#PBF LTC2655CUF-H12#PBF LTC2655IUF-H12#PBF TAPE AND REEL LTC2655BCGN-L16#TRPBF LTC2655BIGN-L16#TRPBF LTC2655BCUF-L16#TRPBF LTC2655BIUF-L16#TRPBF LTC2655BIGN-H16#TRPBF LTC2655BCUF-H16#TRPBF LTC2655BIUF-H16#TRPBF LTC2655CGN-L12#TRPBF LTC2655IGN-L12#TRPBF LTC2655CUF-L12#TRPBF LTC2655IUF-L12#TRPBF LTC2655CGN-H.


MAX1359B LTC2655 AD5421


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