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DACX0508 Datasheet(PDF) 1 Page - Texas Instruments |
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DACX0508 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 53 page  OUT0 DAC Register DAC Buffer Channel 0 Channel 1 Channel 2 Power Down Logic Resistive Network Power On Reset DACx0508 OUT1 OUT2 REF SCLK SDI SDO/ALARM VDD DAC CS INTERNAL REFERENCE VIO GAIN x1 OR x2 GND Copyright © 2017, Texas Instruments Incorporated BUF Channel 3 OUT3 Channel 4 OUT4 Channel 5 OUT5 Channel 6 OUT6 Channel 7 OUT7 +1 OR +2 Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. DAC80508Z, DAC70508Z, DAC60508Z, DAC80508M, DAC70508M, DAC60508M SLASEL1B – JUNE 2017 – REVISED JANUARY 2018 DACx0508 Octal, 16-, 14-, 12-Bit, SPI, Voltage Output DAC with Internal Reference 1 1 Features 1 • Performance – INL: ±1 LSB Maximum at 16-Bit Resolution – TUE: ±0.14% of FSR Maximum • Integrated 2.5 V Precision Internal Reference – Initial Accuracy: ±5 mV Maximum – Low Drift: 5 ppm/°C Typical • High Drive Capability: 20 mA with 0.5 V from Supply Rails • Flexible Output Configuration – User Selectable Gain: 2, 1 or ½ – Reset to Zero Scale or Midscale • Wide Operating Range – Power Supply: 2.7 V to 5.5 V – Temperature Range: –40 ˚C to 125˚C • 50 MHz SPI Compatible Serial Interface – 4-Wire Mode, 1.7 V to 5.5 V Operation – Daisy Chain Operation – CRC Error Check • Low Power: 0.6 mA/Channel at 5.5 V • Small Packages: – 3 mm × 3 mm, 16-Pin WQFN – 2.4 mm x 2.4 mm, 16-Pin DSBGA 2 Applications • Optical Networking • Wireless Infrastructure • Industrial Automation • Data Acquisition Systems 3 Description The DACx0508 is a pin-compatible family of low power, eight-channel, buffered voltage-output, digital- to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx0508 includes a 2.5-V, 5- ppm/°C internal reference, eliminating the need for an external precision reference in most applications. A user selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7-V to 5.5-V supply, is specified monotonic and provides high linearity of ±1 LSB INL. Communication to the DACx0508 is performed through a 4-wire serial interface that operates at clock rates up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx0508 flexible interface enables operation with a wide range of industry-standard microprocessors and microcontrollers. The DACx0508 incorporates a power-on-reset circuit that powers up and maintains the DAC outptus at either zero scale or midscale until a valid code is written to the device. The device consumes low current of 0.6 mA/channel at 5.5 V, making it suitable for battery-operated equipment. A per-channel power- down feature reduces the device current consumption to 15 µA. The DACx0508 is characterized for operation over the temperature range of –40°C to 125°C and is available in small packages. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) DACx0508(2) WQFN (16) 3.00 mm × 3.00 mm DSBGA (16) 2.40 mm x 2.40 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. (2) DAC80508Z and DAC80508M Product Preview Simplified Block Diagram |
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