LTC2754 Quad 12-/16-Bit SoftSpan I DACs OUT FEATURES DESCRIPTION n Program or Pin-Strap Six Output Ranges The LTC 2754 is a family of quad 12- and 16-bit multiplying 0V to 5V, 0V to 10V, 2.5V to 7.5V, 2.5V, 5V, 10V serial-input, current-output digital-to-analog converters. n Maximum 16-Bit INL Error: 1 LSB over They operate from a single 3V to 5V supply and are guar- Temperature anteed monotonic over temperature. The LTC2754A-16 n Guaranteed Monotonic over Temperature provides full 16-bit performance (1LSB INL and DNL, n Low Glitch Impulse 0.26nVs (3V), 1.25nVs (5V) max) over temperature without any adjustments. These n Serial Readback of All On-Chip Registers SoftSpan DACs offer six output ranges (up to 10V) that n Low 1A Maximum Supply Current can be programmed through the 3-wire SPI serial interface, n 2.7V to 5.5V Single-Supply Operation or pinstrapped for operation in a single range. n 16-Bit Settling Time: 2s The content of any on-chip register (including DAC out- n Voltage-Controlled Offset and Gain Trims put-range settings) can be veri ed in just one instruction n Clear and Power-On-Reset to 0V Regardless of cycle and if you change any register, that register will be Output Range automatically read back during the next instruction cycle. n 52-Pin 7mm 8mm QFN Package Voltage-controlled offset and gain adjustments are also provided and the power-on reset circuit and CLR pin both APPLICATIONS reset the DAC outputs to 0V regardless of output range. High Resolution Offset and Gain Adjustment L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Process Control and Industrial Automation Technology Corporation. SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Automatic Test Equipment Protected by U.S. Patents, including 5481178. Data Acquisition Systems TYPICAL APPLICATION Quad 16-Bit V DAC with Software-Selectable Ranges OUT V V REFA REFB + LTC2754-16 Integral Nonlinearity (INL) V DD 1.0 V = 5V DD 0.8 V = 5V REF V V OSADJA OSADJB 10V RANGE 0.6 I I + OUT2A OUT2B V V OUTA OUTB 0.4 I DAC A DAC B I OUT1A OUT1B R R 0.2 FBA FBB SPI with READBACK 0 LTC2754-16 R R FBD FBC 0.2 I I OUT1D OUT1C 0.4 V V I I OUTD OUT2D OUT2C OUTC DAC D DAC C + 0.6 V V 0.8 OSADJD OSADJC 1.0 0 16384 32768 65535 49152 CODE ALL AMPLIFIERS 1/2 LT1469 2754 G01 + V V REFD REFC 2754 TA01 2754f 1 GND M-SPAN R INA R IND GE GE ADJD ADJA R R COMA COMD REFD REFA R R OFSD OFSA R R OFSC OFSB REFC REFB R R COMC COMB GE ADJC GE ADJB R INC R INB INL (LSB) + + + +LTC2754 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) TOP VIEW I , I to GND ............................................0.3V OUT1X OUT2X R , R , REFX, R , R , V , INX COMX FBX OFSX OSADJX GE to GND ........................................................18V ADJX 52 51 50 49 48 47 46 45 44 43 42 41 V to GND .................................................. 0.3V to 7V DD GE 1 40 GE ADJA ADJB Digital Inputs and R 2 39 R INA INB Outputs to GND ................ 0.3V to V +0.3V (max 7V) I 3 38 I OUT2A OUT2B DD GND 4 37 GND Operating Temperature Range CS/LD 5 36 LDAC LTC2754C ................................................ 0C to 70C SDI S2 6 35 LTC2754I..............................................40C to 85C SCK 7 34 S1 53 Maximum Junction Temperature........................... 150C SRO 8 33 S0 Storage Temperature Range ...................65C to 150C SROGND 9 32 M-SPAN V 10 31 RFLAG DD GND 11 30 CLR I 12 29 I OUT2D OUT2C R 13 28 R IND INC GE 14 27 GE ADJD ADJC 15 16 17 18 19 20 21 22 23 24 25 26 UKG PACKAGE 52-LEAD (7mm s 8mm) PLASTIC QFN T = 150C, = 29C/W JMAX JA EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2754CUKG-12 PBF LTC2754CUKG-12 TRPBF LTC2754UKG-12 0C to 70C 52-Lead (7mm 8mm) Plastic QFN LTC2754IUKG-12 PBF LTC2754IUKG-12 TRPBF LTC2754UKG-12 40C to 85C 52-Lead (7mm 8mm) Plastic QFN LTC2754BCUKG-16 PBF LTC2754BCUKG-16 TRPBF LTC2754UKG-16 52-Lead (7mm 8mm) Plastic QFN 0C to 70C LTC2754BIUKG-16 PBF LTC2754BIUKG-16 TRPBF LTC2754UKG-16 52-Lead (7mm 8mm) Plastic QFN 40C to 85C LTC2754ACUKG-16 PBF LTC2754ACUKG-16 TRPBF LTC2754UKG-16 0C to 70C 52-Lead (7mm 8mm) Plastic QFN LTC2754AIUKG-16 PBF LTC2754AIUKG-16 TRPBF LTC2754UKG-16 40C to 85C 52-Lead (7mm 8mm) Plastic QFN 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: