GND MSPAN LTC2755 Quad Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O FEATURES DESCRIPTION Program or Pin-Strap Six Output Ranges The LTC 2755 is a family of quad 12-, 14-, and 16-bit Unipolar: 0V to 5V, 0V to 10V multiplying parallel-input, current-output DACs. These Bipolar: 5V, 10V, 2.5V, 2.5V to 7.5V DACs operate from a single 2.7V to 5.5V supply and are all Maximum 16-Bit INL Error: 1 LSB over Temperature guaranteed monotonic over temperature. The LTC2755A-16 Low 1A (Maximum) Supply Current provides 16-bit performance (1LSB INL and DNL) over Guaranteed Monotonic over Temperature temperature without any adjustments. These SoftSpan Low Glitch Impulse 1nVs DACs offer six output rangestwo unipolar and four 2.7V to 5.5V Single Supply Operation bipolarthat can be programmed through the parallel 2s Settling Time to 1 LSB interface, or pinstrapped for operation in a single range. Parallel Interface with Readback of All Registers The LTC2755 DACs use a bidirectional input/output paral- Asynchronous CLR Pin Clears DAC Outputs to 0V in lel interface that allows readback of any internal register, Any Output Range including the DAC output span settings. A power-on reset Power-On Reset to 0V circuit resets the DAC outputs to 0V when power is initially 64-Pin 9mm 9mm QFN Package applied. A logic low on the CLR pin asynchronously clears the DACs to 0V in any output range. APPLICATIONS The parts are speci ed over commercial and industrial High Resolution Offset and Gain Adjustment temperature ranges. Process Control and Industrial Automation , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Automatic Test Equipment SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7034735, Data Acquisition Systems 7256721. TYPICAL APPLICATION SoftSpan Parallel I DAC Selector Guide Quad 16-Bit V DAC with Software-Selectable Ranges OUT OUT V REF1 SINGLE DUAL QUAD 5V + Part Number LTC2751 LTC2753 LTC2755 R R R R REFA REFB OFSA IN1 COM1 OFSB R VOSB R LTC2755-16 Integral Nonlinearity (INL) VOSA I OUT2B + I OUT2A V 1.0 DAC B I OUTB OUT1B V = 5V V DAC A DD OUTA I OUT1A 0.8 V = 5V REF R FBB 10V RANGE R FBA 0.6 V DD 5V 0.4 SPAN I/O I/O PORT 0.1F LTC2755-16 0.2 R FBC DATA I/O I/O PORT 0.0 R FBD I OUT1C 0.2 I OUT1D DAC C I V OUTC OUT2C 0.4 + V I DAC D OUTD OUT2D R VOSC 0.6 25C R VOSD 90C 0.8 45C 2755 TA01 R REFD REFC R R R OFSD COM2 IN2 OFSC 1.0 0 16384 32768 49152 65535 CODE 2755 TA01b V REF2 5V 2755f 1 INL (LSB) + + +LTC2755 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Operating Temperature Range I , I , R to GND ................................0.3V OUT1X OUT2X COMX LTC2755C ..................................................... 0C to 70C R , R , R , R , REF to GND ..................15V VOSX FBX OFSX INX X LTC2755I .................................................. 40C to 85C V to GND .................................................. 0.3V to 7V DD Maximum Junction Temperature........................... 125C Digital Inputs and Digital I/O Storage Temperature Range ................... 65C to 150C to GND ..........................0.3V to V +0.3V (max 7V) DD PIN CONFIGURATION 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 48 S2 1 D/S S2 1 D/S S2 1 48 D/S I 2 47 S0 I 2 47 S0 I 2 47 S0 OUT2A OUT2A OUT2A GND 3 46 I GND 3 46 I GND 3 46 I OUT2B OUT2B OUT2B D11 4 45 GND D13 4 45 GND D15 4 45 GND D10 5 44 NC D12 5 44 NC D14 5 44 NC D9 6 43 NC D11 6 43 NC D13 6 43 NC 7 42 NC 7 42 NC 7 42 D0 D8 D10 D12 8 41 8 41 41 D7 NC D9 NC D11 8 D1 65 65 65 D6 9 40 NC D8 9 40 D0 D10 9 40 D2 D5 10 39 NC D7 10 39 D1 D9 10 39 D3 D4 11 38 D0 D6 11 38 D2 D8 11 38 D4 D3 12 37 D1 D5 12 37 D3 D7 12 37 D5 GND 13 36 D2 GND 13 36 D4 GND 13 36 D6 I 14 35 GND I 14 35 GND I 14 35 GND OUT2D OUT2D OUT2D 15 34 I 15 34 I 15 34 I V V V DD OUT2C DD OUT2C DD OUT2C 33 33 33 A2 16 MSPAN A2 16 MSPAN A2 16 MSPAN 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 LTC2755-12 UP PACKAGE LTC2755-14 UP PACKAGE LTC2755-16 UP PACKAGE 64-LEAD (9mm 9mm) PLASTIC QFN 64-LEAD (9mm 9mm) PLASTIC QFN 64-LEAD (9mm 9mm) PLASTIC QFN T = 125C, = 28C/W T = 125C, = 28C/W T = 125C, = 28C/W JMAX JA JMAX JA JMAX JA EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2755CUP-12 PBF LTC2755CUP-12 TRPBF LTC2755UP-12 64-Lead (9mm 9mm) Plastic QFN 0C to 70C LTC2755IUP-12 PBF LTC2755IUP-12 TRPBF LTC2755UP-12 64-Lead (9mm 9mm) Plastic QFN 40C to 85C LTC2755CUP-14 PBF LTC2755CUP-14 TRPBF LTC2755UP-14 64-Lead (9mm 9mm) Plastic QFN 0C to 70C LTC2755IUP-14 PBF LTC2755IUP-14 TRPBF LTC2755UP-14 64-Lead (9mm 9mm) Plastic QFN 40C to 85C LTC2755BCUP-16 PBF LTC2755BCUP-16 TRPBF LTC2755UP-16 64-Lead (9mm 9mm) Plastic QFN 0C to 70C LTC2755BIUP-16 PBF LTC2755BIUP-16 TRPBF LTC2755UP-16 64-Lead (9mm 9mm) Plastic QFN 40C to 85C LTC2755ACUP-16 PBF LTC2755ACUP-16 TRPBF LTC2755UP-16 64-Lead (9mm 9mm) Plastic QFN 0C to 70C LTC2755AIUP-16 PBF LTC2755AIUP-16 TRPBF LTC2755UP-16 64-Lead (9mm 9mm) Plastic QFN 40C to 85C 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: