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AD5044 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD5044 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 28 page Fully Accurate, 12-/14-/16-Bit VOUT nanoDAC, Quad, SPI Interface, 4.5 V to 5.5 V in TSSOP Data Sheet AD5024/AD5044/AD5064 Rev. F Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2008–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Low power quad 12-/14-/16-bit DAC, ±1 LSB INL Pin compatible and performance upgrade to AD5666 Individual and common voltage reference pin options Rail-to-rail operation 4.5 V to 5.5 V power supply Power-on reset to zero scale or midscale 3 power-down functions and per-channel power-down Hardware LDAC with software LDAC override function CLR function to programmable code SDO daisy-chaining option 14-/16-lead TSSOP Internal reference buffer and internal output amplifier APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators FUNCTIONAL BLOCK DIAGRAMS INTERFACE LOGIC AND SHIFT REGISTER INPUT REGISTER DIN SDO LDAC GND VDD LDAC VREFIN SYNC SCLK AD5064-1 CLR VOUTA VOUTB VOUTC VOUTD DAC REGISTER DAC A BUFFER INPUT REGISTER DAC REGISTER DAC B BUFFER INPUT REGISTER DAC REGISTER DAC C BUFFER INPUT REGISTER DAC REGISTER DAC D BUFFER POR POWER-DOWN LOGIC POWER-ON RESET Figure 1. AD5064-1 Functional Equivalent and Pin Compatible with AD5666 INTERFACE LOGIC AND SHIFT REGISTER INPUT REGISTER DIN LDAC GND VDD LDAC VREFA SYNC SCLK AD5024/ AD5044/ AD5064 CLR VOUTA VOUTB VOUTC VOUTD DAC REGISTER DAC A BUFFER INPUT REGISTER DAC REGISTER DAC B BUFFER INPUT REGISTER DAC REGISTER DAC C BUFFER INPUT REGISTER DAC REGISTER DAC D BUFFER VREFB VREFC VREFD POR POWER-DOWN LOGIC POWER-ON RESET Figure 2. AD5024/AD5044/AD5064 with Individual Reference Pins GENERAL DESCRIPTION The AD5024/AD5044/AD5064/AD5064-1 are low power, quad 12-/14-/16-bit buffered voltage output nanoDAC® converters that offer relative accuracy specifications of 1 LSB INL and 1 LSB DNL with the AD5024/AD5044/AD5064 individual reference pin and the AD5064-1 common reference pin options. The AD5024/AD5044/AD5064/AD5064-1 can operate from a single 4.5 V to 5.5 V supply. The AD5024/AD5044/AD5064/AD5064-1 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compati- ble with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. Integrated reference buffers and output amplifiers are also provided on-chip. The AD5024/AD5044/AD5064/AD5064-1 incorporate a power-on reset circuit that ensures the DAC output powers up to zero scale or midscale and remains there until a valid write takes place to the device. The AD5024/AD5044/ AD5064/AD5064-1 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power- down mode. Total unadjusted error for the parts is <2 mV. PRODUCT HIGHLIGHTS 1. Quad channel available in 14-/16-lead TSSOP packages. 2. 16-bit accurate, 1 LSB INL. 3. High speed serial interface with clock speeds up to 50 MHz. 4. Reset to known output voltage (zero scale or midscale). Table 1. Related Devices Part No. Description AD5666 Quad,16-bit buffered DAC, 16 LSB INL, TSSOP AD5025/AD5045/AD5065 Dual, 16-bit buffered DACs, 1 LSB INL, TSSOP AD5062, AD5063 16-bit nanoDAC, 1 LSB INL, SOT-23, MSOP AD5061 16-bit nanoDAC, 4 LSB INL, SOT-23 AD5040/AD5060 14-/16-bit nanoDAC, 1 LSB INL, SOT-23 |
Podobny numer części - AD5044_15 |
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Podobny opis - AD5044_15 |
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