AD5066 Analog Devices, AD5066 Datasheet
AD5066
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AD5066 Summary of contents
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... LSB INL with individual reference pins and can operate from a single 2 5.5 V supply. The AD5066 also offers a differential accuracy specification of ±1 LSB DNL. Reference buffers are also provided on-chip. The part uses a ...
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... Serial Interface ............................................................................ 15 Input Shift Register .................................................................... 15 Power-On Reset .......................................................................... 17 Clear Code Register ................................................................... 18 LDAC Function ........................................................................... 18 Power Supply Bypassing and Grounding ................................ 19 Microprocessor Interfacing ....................................................... 19 Applications Information .............................................................. 21 Using a Reference as a Power Supply ....................................... 21 Bipolar Operation....................................................................... 21 Using the AD5066 with a Galvanically Isolated Interface .... 21 Outline Dimensions ....................................................................... 22 Ordering Guide .......................................................................... 22 Rev Page ...
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... Output impedance tolerance ± 400 Ω µ ± 10%, DAC = full scale DD V − 0 ±1 µA Per DAC channel MΩ Per DAC channel ±1 µA 0 5.5 V All digital inputs DAC active, excludes load current and V = GND µA AD5066 DD ...
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... AD5066 AC CHARACTERISTICS 5.5 V, 2.0 V ≤ REF REF Table Parameter Min DYNAMIC PERFORMACE Output Voltage Settling Time Output Voltage Settling Time Slew Rate Digital-to-Analog Glitch Impulse Reference Feedthrough Digital Feedthrough Digital Crosstalk Analog Crosstalk DAC-to-DAC Crosstalk Total Harmonic Distortion ...
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... Figure 2. Serial Write Operation Rev Page )/ Min Typ Max 10 AD5066 = 2 Unit µs µ µs ...
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... AD5066 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter Rating V to GND −0 Digital Input Voltage to GND −0 GND −0 OUT GND −0 REF Operating Temperature Range Industrial −40°C to +125°C Storage Temperature Range − ...
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... If SYNC is taken high before the 32 SYNC acts as an interrupt, and the write sequence is ignored by the device Power Supply Input. The AD5066 can be operated from 2 5.5 V. Decouple the supply with a 10 µF DD capacitor in parallel with a 0.1 µF capacitor to GND. 4 ...
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... AD5066 TYPICAL PERFORMANCE CHARACTERISTICS 0.3 0.2 0.1 0 –0.1 –0.2 –0 4.096V REF –0 25°C A –0.5 0 10,000 20,000 30,000 40,000 CODE Figure 4. INL Error vs. Code 0 4.096V REF 0 25°C A 0.1 0 –0.1 –0.2 –0.3 –0.4 0 10,000 20,000 30,000 40,000 CODE Figure 5. DNL Error vs. Code ...
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... Figure 14. Total Unadjusted Error vs. Temperature –10 –20 –30 –40 –50 100 120 –40 –20 Figure 15. Zero-Code Error vs. Temperature Rev Page AD5066 MAX DNL MIN DNL = 4.096V REF 100 TEMPERATURE (°C) Figure 13. DNL vs. Temperature MAX TUE MIN TUE V ...
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... AD5066 0.0020 0.0015 0.0010 0.0005 0 –0.0005 –0.0010 –0.0015 V = 4.096V REF –0.0020 –40 – TEMPERATURE (°C) Figure 16. Gain Error vs. Temperature 0.010 0.005 0 –0.005 4.096V REF T = 25°C A –0.010 2.7 3.2 3.7 4.2 V (V) DD Figure 17. Gain Error and Full-Scale Error vs. Supply Voltage ...
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... DAC LOAD = 9pF 0 100 120 0 V REF T = 25°C A 5.0 5.5 CH1 2.00V CH3 2.00V REF CH1 2.00V 5 6 CH3 2.00V Rev Page AD5066 1/4 TO 3/4 3/4 TO 1/4 = 4.5V = 4.096V = 25° TIME (µs) Figure 25. Settling Time REF V OUT = 4.096V CH2 2.00V M10.00ms ...
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... AD5066 CH1 = SCLK 1 CH2 = OUT DD POWER-UP TO MIDSCALE OUTPUT UNLOADED 2 CH1 5V CH2 500mV M2µs T 55% Figure 28. Exiting – 4.096V REF – 25°C A CODE = 0x8000 TO 0x7FFF OUTPUT UNLOADED WITH 5kΩ AND 200pF –15 – TIME (µs) Figure 29 ...
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... 4.096V REF T = 25°C A 50.0mV CH2 5.00V M4.00µs A CH2 T 9.800% Figure 37. Glitch Upon Entering Power Down CH1 PEAK TO PEAK 159mV V OUT LAST SCLK = 5V = 4.096V = 25°C 50.0mV CH2 5.00V M4.00µs A CH2 T 9.800% Figure 38. Glitch Upon Exiting Power Down AD5066 1.80V 1.80V ...
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... Zero-code error is a measure of the output error when zero code (0x0000) is loaded into the DAC register. Ideally, the output should The zero-code error is always positive in the AD5066, because the output of the DAC cannot go below 0 V. Zero-code error is expressed in millivolts. Figure 17 shows a typical zero-code error vs. supply voltage plot. ...
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... The AD5066 is a quad 16-bit, serial input, voltage output nanoDAC. The part operates from supply voltages of 2 5.5 V. Data is written to the AD5066 in a 32-bit word format via a 3-wire serial interface. The AD5066 incorporates a power-on reset circuit to ensure the DAC output powers known output state ...
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... Bringing the SYNC line low enables the DIN and SCLK input buffers. Data from the DIN line is clocked into the 32-bit shift register on the falling edge of SCLK. The serial clock frequency can be as high as 50 MHz, making the AD5066 compatible with high speed DSPs. On the 32 nd ...
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... The AD5066 contains a power-on reset circuit that controls the output voltage during power-up. By connecting the POR pin low, the AD5066 output powers connecting the POR pin high, the AD5066 output powers up to midscale. The output remains powered up at this level until a valid write sequence is made to the DAC ...
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... AD5066 CLEAR CODE REGISTER The AD5066 has a hardware CLR pin that is an asynchronous clear input. The CLR input is falling edge sensitive. Bringing the CLR line low clears the contents of the input register and the DAC registers to the data contained in the user-configurable CLR register and sets the analog outputs accordingly (see Table 11) ...
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... AGND-to-DGND con- nection, make the connection at one point only and as close as possible to the AD5066. Bypass the power supply to the AD5066 with 10 µF and 0.1 µF capacitors. The capacitors should be physically as close as possible to the device, with the 0.1 µF capacitor, ideally, right up against the device. The 10 µ ...
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... P3.3 is taken high following the completion of this cycle. The 80C51/80L51 output the serial data in a format that has the LSB first. The AD5066 must receive data with the MSB first. The 80C51/80L51 transmit routine should take this into account. ...
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... for example The voltage reference outputs a steady supply voltage for the AD5066. If the low dropout REF195 is used, it must supply 2 current to the AD5066 with no load on the output of the DAC. 15V 5V ...
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... AD5066 OUTLINE DIMENSIONS 0.15 0.05 ORDERING GUIDE 1 Model Temperature Range AD5066BRUZ −40°C to +125°C AD5066BRUZ-REEL7 −40°C to +125°C AD5066ARUZ −40°C to +125°C AD5066ARUZ-REEL7 −40°C to +125° RoHS Compliant Part. 5.10 5.00 4. 4.50 6.40 4.40 BSC 4. PIN 1 1.20 MAX 0.20 0.09 8° 0.30 0.65 0° 0.19 SEATING BSC ...
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... NOTES Rev Page AD5066 ...
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... AD5066 NOTES ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06845-0-8/10(A) Rev Page ...