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LTC1661

Linear Technology
Part Number LTC1661
Manufacturer Linear Technology
Description Micropower Dual 10-Bit DAC
Published Mar 27, 2005
Detailed Description Features n Tiny: Two 10-Bit DACs in an 8-Lead MSOP— Half the Board Space of an SO-8 n Micropower: 60µA per DAC Sleep Mod...
Datasheet PDF File LTC1661 PDF File

LTC1661
LTC1661

Overview
Features n Tiny: Two 10-Bit DACs in an 8-Lead MSOP— Half the Board Space of an SO-8 n Micropower: 60µA per DAC Sleep Mode: 1µA for Extended Battery Life n Rail-to-Rail Voltage Outputs Drive 1000pF n Wide 2.
7V to 5.
5V Supply Range n Double Buffered for Independent or Simultaneous DAC Updates n Reference Range Includes Supply for Ratiometric 0V-to-VCC Output n Reference Input Has Constant Impedance over All Codes (260kΩ Typ)—Eliminates External Buffers n 3-Wire Serial Interface with Schmitt Trigger Inputs n Differential Nonlinearity: ≤±0.
75LSB Max Applications n Mobile Communications n Digitally Controlled Amplifiers and Attenuators n Portable Battery-Powered Instruments n Automatic Calibration for Manufacturing n Remote Industrial Devices 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.
LTC1661 Micropower Dual 10-Bit DAC in MSOP Description The LTC®1661 integrates two accurate, serially addressable, 10-bit digital-to-analog converters (DACs) in a single tiny MS8 package.
Each buffered DAC draws just 60µA total supply current, yet is capable of supplying DC output currents in excess of 5mA and reliably driving capacitive loads up to 1000pF.
Sleep mode further reduces total supply current to a negligible 1µA.
Linear Technology’s proprietary, inherently monotonic voltage interpolation architecture provides excellent linearity while allowing for an exceptionally small external form factor.
The double-buffered input logic provides simultaneous update capability and can be used to write to either DAC without interrupting sleep mode.
Ultralow supply current, power-saving sleep mode and extremely compact size make the LTC1661 ideal for battery-powered applications, while its straightforward usability, high performance and wide supply range make it an excellent choice as a general purpose converter.
For additional outputs and even greater board ...


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