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LTC2635-LMO10 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2635-LMO10 Datasheet(HTML) 1 Page - Linear Technology |
1 / 32 page LTC2635 2635fb Block Diagram Description Quad 12-/10-/8-Bit I2C VOUT DACs with 10ppm/°C Reference The LTC®2635 is a family of quad 12-, 10-, and 8-bit voltage-output DACs with an integrated, high-accuracy, low-drift reference in a 16-pin QFN or a 10-lead MSOP package. It has rail-to-rail output buffers and is guaran- teed monotonic. The LTC2635-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2635-H has a full-scale output of 4.096V, 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 the external reference voltage. These DACs communicate via a 2-wire I2C-compatible serialinterface.TheLTC2635operatesinboththestandard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). The LTC2635 incorporates a power-on reset circuit. Options are available for reset to zero-scale, reset tomid-scaleininternalreferencemode,resettomid-scale in external reference mode, or reset with all DAC outputs in a high-impedance state after power-up. Integral Nonlinerity Features applications n Integrated Precision Reference 2.5V Full-Scale 10ppm/°C (LTC2635-L) 4.096V Full-Scale 10ppm/°C (LTC2635-H) n Maximum INL Error: ±2.5 LSB (LTC2635-12) n Power-On-Reset to Zero-Scale/Mid-Scale/Hi-Z n Low Noise: 0.75mVP-P 0.1Hz to 200kHz n Guaranteed Monotonic Over –40°C to 125°C Automotive Temperature Range n Selectable Internal or External Reference n 2.7V to 5.5V Supply Range (LTC2635-L) n Ultralow Crosstalk Between DACs (3nV•s) n Low Power: 0.6mA at 3V n Double-Buffered Data Latches n Small 16-Pin 3mm × 3mm QFN and 10-Lead MSOP Packages n Mobile Communications n Process Control and Industrial Automation n Power Supply Margining n Portable Equipment n Automotive DAC A VOUTA (REFLO) (LDAC) CA0 (CA1) (CA2) ( ) QFN PACKAGE ONLY GND VOUTB VREF DAC D DAC B DAC C VREF VOUTD REF VCC VREF VOUTC SWITCH INTERNAL REFERENCE I2C INTERFACE DECODE I2C ADDRESS DECODE POWER-ON RESET SCL SDA 2635 BD L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5396245, 5859606, 6891433, 6937178, 7414561. CODE 0 2 1 0 –1 –2 1024 3072 2635 TA01 4095 2048 VCC = 3V INTERNAL REF. |
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