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LTC2636HMS-LMX8 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2636HMS-LMX8 Datasheet(HTML) 1 Page - Linear Technology |
1 / 24 page LTC2636 1 2636f BLOCK DIAGRAM FEATURES APPLICATIONS DESCRIPTION Octal 12-/10-/8-Bit SPI VOUT DACs with10ppm/°C Reference 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™-com- patible 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 pack- age. 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. 12-Bit Integral Nonlinearity (LTC2636-LZ12) n 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: 0.75mVP-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 Mobile Communications n Process Control and Industrial Automation n Automatic Test Equipment n Portable Equipment n Automotive n Optical Networking L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. SPI/MICROWIRE 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. 2636 BD GND VOUTA VOUTB VOUTC VOUTD SCK CS/LD (LDAC) REF VCC VOUTH VOUTG VOUTF VOUTE SDI (CLR) INTERNAL REFERENCE SWITCH DAC A CONTROL LOGIC DECODE POWER-ON RESET VREF VREF VREF VREF VREF VREF VREF DAC B DAC C DAC D DAC H DAC G DAC F DAC E 32-BIT SHIFT REGISTER ( ) MSOP PACKAGE ONLY CODE 0 2 1 0 –1 –2 1024 3072 2636 TA01 4095 2048 VCC = 3V INTERNAL REF. |
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