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LTC2619CGN-1PBF Datasheet(PDF) 1 Page - Linear Technology |
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LTC2619CGN-1PBF Datasheet(HTML) 1 Page - Linear Technology |
1 / 22 page LTC2609/LTC2619/LTC2629 1 26091929fa BLOCK DIAGRAM DESCRIPTION Quad 16-/14-/12-Bit Rail-to-Rail DACs with I2C Interface The LTC ®2609/LTC2619/LTC2629 are quad 16-, 14- and 12- bit, 2.7V to 5.5V rail-to-rail voltage output DACs in a 16-lead SSOP package. They have built-in high performance output buffers and are guaranteed monotonic. These parts establish new board-density benchmarks for 16- and 14-bit DACs and advance performance standards for output drive and load regulation in single-supply, volt- age-output DACs. The parts use a 2-wire, I2C compatible serial interface. The LTC2609/LTC2619/LTC2629 operate in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). The LTC2609/LTC2619/LTC2629 incorporate a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero-scale; after power-up, they stay at zero-scale until a valid write and update take place. The power-on reset circuit resets the LTC2609-1/LTC2619-1/ LTC2629-1 to mid-scale. The voltage outputs stay at mid- scale until a valid write and update take place. Differential Nonlinearity (LTC2609) FEATURES APPLICATIONS n Smallest Pin-Compatible Quad DACs: LTC2609: 16 Bits LTC2619: 14 Bits LTC2629: 12 Bits n Guaranteed Monotonic Over Temperature n Separate Reference Inputs n 27 Selectable Addresses n 400kHz I2C™ Interface n Wide 2.7V to 5.5V Supply Range n Low Power Operation: 250μA per DAC at 3V n Individual Channel Power Down to 1μA (Max) n High Rail-to-Rail Output Drive (±15mA, Min) n Ultralow Crosstalk Between DACs (5μV) n LTC2609/LTC2619/LTC2629: Power-On Reset to Zero-Scale n LTC2609-1/LTC2619-1/LTC2629-1: Power-On Reset to Mid-Scale n Tiny 16-Lead Narrow SSOP Package n Mobile Communications n Process Control and Industrial Automation n Automatic Test Equipment and Instrumentation I2C INTERFACE ADDRESS DECODE LOGIC 32-BIT SHIFT REGISTER SDA 2609 BD 9 REFB 6 SCL 8 VOUTB 5 VOUTA 4 REFA 3 REFLO 2 GND 1 DAC A DAC B REFC 12 VOUTC 13 VOUTD 14 CA2 7 CA1 10 CA0 11 REFD 15 VCC 16 DAC D DAC C CONTROL LOGIC CODE 0 16384 32768 49152 65535 2609 G02 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 VCC = 5V VREF = 4.096V 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. Patent pending. |
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