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DAC8812ICPWR bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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DAC8812ICPWR bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 18 page DAC8812 www.ti.com FEATURES DESCRIPTION APPLICATIONS 16 DAC D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 A0 A1 EN A B SDI CS CLK DGND RS MSB LDAC R R Power-On Reset R DAC B Register DAC A Register R DAC A DAC B Decode Input Register Input Register V A B REF R A FB R B FB I A OUT A A GND I B OUT A B GND DAC8812 SBAS349A – AUGUST 2005 – REVISED DECEMBER 2005 Dual, Serial Input 16-Bit Multiplying Digital-to-Analog Converter • Relative Accuracy: 1 LSB Max The DAC8812 is a dual, 16-bit, current-output • Differential Nonlinearity: 1 LSB Max digital-to-analog converter (DAC) designed to operate from a single +2.7 V to +5.5 V supply. • 2-mA Full-Scale Current ±20%, with VREF = ±10 V The applied external reference input voltage VREF • 0.5 µs Settling Time determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking • Midscale or Zero-Scale Reset for the full-scale output when combined with an • Separate 4Q Multiplying Reference Inputs external I-to-V precision amplifier. • Reference Bandwidth: 10 MHz A double-buffered, serial data interface offers • Reference Dynamics: –105 dB THD high-speed, 3-wire, SPI and microcontroller • SPI™-Compatible 3-Wire Interface: compatible inputs using serial data in (SDI), clock 50 MHz (CLK), and a chip-select (CS). A common • Double Buffered Registers Enable level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from • Simultaneous Multichannel Change previously loaded input registers. Additionally, an • Internal Power On Reset internal power-on reset forces the output voltage to • Industry-Standard Pin Configuration zero at system turn-on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1. • Automatic Test Equipment The DAC8812 is available in an TSSOP-16 package. • Instrumentation • Digitally Controlled Calibration Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. SPI is a trademark of Motorola, Inc. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2005, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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