LTC2633 2 Dual 12-/10-/8-Bit I C V DACs with OUT 10ppm/C Reference Features Description n Integrated Precision Reference The LTC 2633 is a family of dual 12-, 10-, and 8-bit voltage-output DACs with an integrated, high accuracy, 2.5V Full-Scale 10ppm/C (LTC2633-L) low drift reference in an 8-lead TSOT-23 package. It has 4.096V Full-Scale 10ppm/C (LTC2633-H) n rail-to-rail output buffers and is guaranteed monotonic. Maximum INL Error: 1LSB (LTC2633A-12) n The LTC2633-L has a full-scale output of 2.5V, and operates Low Noise: 0.75mV 0.1Hz to 200kHz P-P n from a single 2.7V to 5.5V supply. The LTC2633-H has a Guaranteed Monotonic Over 40C to 125C full-scale output of 4.096V, and operates from a 4.5V to Temperature Range n 5.5V supply. Each DAC can also operate with an external Selectable Internal or External Reference n reference, which sets the full-scale output to the external 2.7V to 5.5V Supply Range (LTC2633-L) n reference voltage. Low Power: 0.4mA at 3V n 2 Power-on-Reset to Zero-Scale/Mid-Scale/Hi-Z These DACs communicate via a 2-wire I C-compatible n Double-Buffered Data Latches serial interface. The LTC2633 operates in both the standard n 8-Lead ThinSOT Package mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). The LTC2633 incorporates a power-on reset circuit. Options are available for reset to zero-scale, reset a to mid-scale in internal reference mode, reset to mid-scale n Mobile Communications in external reference mode, or reset with all DAC outputs n Process Control and Industrial Automation in a high impedance state after power-up. n Power Supply Margining L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and n ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property Portable Equipment of their respective owners. Protected by U.S. Patents including 5396245, 5859606, 6891433, n Automotive 6937178, 7414561. Block Diagram REF INTERNAL Integral Nonlinearity (LTC2633A-LZ12) SWITCH REFERENCE INL Curve GND V REF 2 V = 3V V CC CC INTERNAL REF. 1 V V OUTA OUTB DAC A DAC B 0 CONTROL POWER-ON 1 DECODE LOGIC RESET SCL 2 2 0 1024 2048 3072 4095 I C CA0 SDA 2 CODE ADDRESS I C INTERFACE 2633 TA01 DECODE 2633 BD 2633fb 1 REGISTER REGISTER REGISTER REGISTER INL (LSB) pplicationsLTC2633 aB solute m aximum r p in c F (Notes 1, 2) Supply Voltage (V ) ................................... 0.3V to 6V CC SCL, SDA ..................................................... 0.3V to 6V TOP VIEW V , V ....................0.3V to Min(V + 0.3V, 6V) OUTA OUTB CC SCL 1 8 SDA CA0 ...................................0.3V to Min(V + 0.3V, 6V) CC CA0 2 7 V CC REF ...................................0.3V to Min(V + 0.3V, 6V) CC REF 3 6 V OUTB GND 4 5 V Operating Temperature Range OUTA TS8 PACKAGE LTC2633C ................................................ 0C to 70C 8-LEAD PLASTIC TSOT-23 LTC2633H (Note 3) ............................ 40C to 125C T = 150C (NOTE 6), = 195C/W JMAX JA Maximum Junction Temperature........................... 150C Storage Temperature Range ................... 65C to 150C Lead Temperature (Soldering, 10 sec) ..................300C o r Der i n F LTC2633 A C TS8 L Z 12 TRM PBF LEAD FREE DESIGNATOR TAPE AND REEL TR = 2,500-Piece Tape and Reel TRM = 500-Piece Tape and Reel RESOLUTION 12 = 12-Bit 10 = 10-Bit 8 = 8-Bit POWER-ON RESET I = Reset to Mid-Scale in Internal Reference Mode X = Reset to Mid-Scale in External Reference Mode (2.5V Full-Scale Voltage, Internal Reference Mode Option Only) O = Reset to Mid-Scale in Internal Reference Mode, DACs High Z (2.5V Full-Scale Voltage, Internal Reference Mode Option Only) Z = Reset to Zero-Scale in Internal Reference Mode FULL-SCALE VOLTAGE INTERNAL REFERENCE MODE L = 2.5V H = 4.096V PACKAGE TYPE TS8 = 8-Lead Plastic TSOT-23 TEMPERATURE GRADE C = Commercial Temperature Range (0C to 70C) H = Automotive Temperature Range (40C to 125C) ELECTRICAL GRADE (OPTIONAL) A = 1LSB Maximum INL (12-Bit) PRODUCT PART NUMBER Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: