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LTC2636IDE-HMX12#PBF

製品説明
仕様・特性

LTC2636 Octal 12-/10-/8-Bit SPI VOUT DACs with10ppm/°C Reference Description Features Integrated Precision Reference 2.5V Full-Scale 10ppm/°C (LTC2636-L) 4.096V Full-Scale 10ppm/°C (LTC2636-H) n Maximum INL Error: 2.5LSB (LTC2636-12) n Low Noise: 0.75mV P-P 0.1Hz to 200KHz n Guaranteed Monotonic Over –40°C to 125°C Temperature Range n Selectable Internal or External Reference n 2.7V to 5.5V Supply Range (LTC2636-L) n Ultralow Crosstalk Between DACs (<2.4nV•s) n Low Power: 0.9mA at 3V (LTC2636-L) n Power-On-Reset to Zero-Scale/Mid-Scale n Double-Buffered Data Latches n Tiny 14-Lead 4mm × 3mm DFN and 16-Lead MSOP Packages n Applications Mobile Communications Process Control and Industrial Automation n Automatic Test Equipment n Portable Equipment n Automotive n Optical Networking n n The LTC®2636 is a family of octal 12-, 10-, and 8-bit voltage-output DACs with an integrated, high-accuracy, low-drift 10ppm/°C reference in 14-lead DFN and 16-lead MSOP packages. It has a rail-to-rail output buffer and is guaranteed monotonic. The LTC2636-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2636-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 DAC full-scale output to the external reference voltage. These DACs communicate via an SPI/MICROWIRE-compatible 3-wire serial interface which operates at clock rates up to 50MHz. Hardware clear (CLR) and asynchronous DAC update (LDAC) pins are available in the MSOP package. The LTC2636 incorporates a power-on reset circuit. Options are available for reset to zero-scale or reset to mid-scale in internal reference mode, or reset to mid-scale in external reference mode after power-up. 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, 5859606, 6891433, 6937178, 7414561. Block Diagram SWITCH INTERNAL REFERENCE REF VREF GND 12-Bit Integral Nonlinearity (LTC2636-LZ12) REGISTER REGISTER DAC A REGISTER DAC H REGISTER REGISTER REGISTER REGISTER DAC B DAC G REGISTER REGISTER REGISTER REGISTER DAC C DAC F VOUTF REGISTER REGISTER REGISTER REGISTER DAC D DAC E 0 –1 VREF VREF VOUTD VCC = 3V INTERNAL REF . 1 VOUTG VREF VREF VOUTC 2 VREF VREF VOUTB VOUTH INL (LSB) VOUTA REGISTER VCC VOUTE –2 0 1024 2048 CODE 3072 4095 2636 TA01 CS/LD CONTROL LOGIC SDI DECODE SCK (LDAC) 32-BIT SHIFT REGISTER ( ) MSOP PACKAGE ONLY (CLR) POWER-ON RESET 2636 BD 2636fb 1

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LINEARTECHNOLOGY

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