AD5426YRMZ Analog Devices Inc, AD5426YRMZ Datasheet
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AD5426YRMZ
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AD5426YRMZ Summary of contents
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FEATURES 5.5 V supply operation 50 MHz serial interface 10 MHz multiplying bandwidth 2.5 MSPS update rate INL of ±1 LSB for 12-bit DAC ±10 V reference input Low glitch energy < 2 nV-s Extended temperature range ...
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AD5426/AD5432/AD5443 TABLE OF CONTENTS Specifications ..................................................................................... 3 Timing Characteristics ..................................................................... 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin Configuration and Function Descriptions ............................. 7 Typical Performance Characteristics ............................................. 8 Terminology .................................................................................... 14 Theory of Operation ...................................................................... 15 ...
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SPECIFICATIONS temperature range for Y version: −40°C to +125°C; all specifications T DD REF OUT otherwise noted; dc performance measured with OP177; ac performance ...
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AD5426/AD5432/AD5443 Parameter Output Capacitance I 1 OUT I 2 OUT Digital Feedthrough Analog THD Digital THD 50 kHz f OUT 20 kHz f OUT Output Noise Spectral Density SFDR Performance (Wide Band) 50 kHz f OUT 20 kHz f OUT ...
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TIMING CHARACTERISTICS All input signals are specified with (10 temperature range for Y version: −40°C to +125°C; all specifications T REF ...
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AD5426/AD5432/AD5443 ABSOLUTE MAXIMUM RATINGS Transient currents 100 mA do not cause SCR latch-up 25°C, unless otherwise noted. A Table 3. Parameter V to GND GND REF ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description DAC Current Output. OUT DAC Analog Ground. This pin should normally be tied to the analog ground of the system. ...
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AD5426/AD5432/AD5443 TYPICAL PERFORMANCE CHARACTERISTICS 0. 25° 10V REF 0. 0.10 0.05 0 –0.05 –0.10 –0.15 –0. 100 150 CODE Figure 6. INL vs. Code (8-Bit DAC) 0 ...
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MAX INL 0.4 0.3 0 25° 0.1 AD5443 0 –0.1 MIN INL –0.2 –0 REFERENCE VOLTAGE Figure 12. INL vs. Reference Voltage –0. ...
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AD5426/AD5432/AD5443 0 25° 2.5V REF 0 AND 5V DD 0.3 0.2 0.1 OFFSET ERROR 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 0.2 0.4 0.6 0.8 1.0 1.2 V (V) BIAS Figure 18. ...
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T = 25°C A AD5443 LOADING 010101010101 3.0 2.5 2 100 1k 10k 100k FREQUENCY (Hz) Figure 24. Supply Current vs. Update Rate 6 LOADING ALL ...
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AD5426/AD5432/AD5443 25° AMPLIFIER = AD8038 0 –20 –40 –60 FULL SCALE –80 ZERO SCALE –100 –120 1 10 100 1k 10k FREQUENCY (Hz) Figure 30. Power Supply Rejection vs. Frequency –60 T ...
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REF –10 AD8038 AMPLIFIER AD5443 –20 –30 –40 –50 –60 –70 –80 –90 –100 0 50 100 150 200 250 300 350 FREQUENCY (Hz) Figure 36. Wideband SFDR kHz, Update = 1 MHz ...
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AD5426/AD5432/AD5443 TERMINOLOGY Relative Accuracy Relative accuracy or endpoint nonlinearity is a measure of the maximum deviation from a straight line passing through the endpoints of the DAC transfer function measured after adjusting for 0 and full scale and ...
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THEORY OF OPERATION The AD5426, AD5432, and AD5443 are 8-, 10-, and 12-bit current output DACs consisting of a standard inverting R-2R ladder configuration. A simplified diagram for the 8-bit AD5426 is shown in Figure 40. The matching feedback resistor, ...
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AD5426/AD5432/AD5443 Bipolar Operation In some applications, it may be necessary to generate full 4-quadrant multiplying operation or a bipolar output swing. This can easily be accomplished by using another external amplifier and some external resistors, as shown in Figure 42. ...
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SINGLE-SUPPLY APPLICATIONS Current Mode Operation These DACs are specified and tested to guarantee operation in single-supply applications. In the current mode circuit of Figure 43 and hence biased positive by an amount OUT OUT applied ...
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AD5426/AD5432/AD5443 ADDING GAIN In applications where the output voltage is required to be greater than V , gain can be added with an additional external IN amplifier or it can be achieved in a single stage important to ...
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The input bias current amp also generates an offset at the voltage output as a result of the bias current flowing in the feedback resistor Most op amps have input bias FB currents low enough ...
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AD5426/AD5432/AD5443 SERIAL INTERFACE The AD5426/AD5432/AD5443 have an easy to use 3-wire inter- face that is compatible with SPI/QSPI/MICROWIRE and DSP interface standards. Data is written to the device in 16 bit words. This 16-bit word consists of 4 control bits ...
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Standalone Mode After power-on, write 1001 to the control word to disable daisy- chain mode. The first falling edge of SYNC resets a counter that counts the number of serial clocks, ensuring the correct number of bits are shifted in ...
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AD5426/AD5432/AD5443 80C51/80L51 to AD5426/AD5432/AD5443 Interface A serial interface between the DAC and the 8051 is shown in Figure 55. TxD of the 8051 drives SCLK of the DAC serial interface, while RxD drives the serial data line, D programmable pin ...
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PCB LAYOUT AND POWER SUPPLY DECOUPLING In any circuit where accuracy is important, careful consider- ation of the power supply and ground return layout helps to ensure the rated performance. The printed circuit board on which the AD5426/AD5432/AD5443 is mounted ...
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AD5426/AD5432/AD5443 SCLK SCLK J3 P1–3 SDIN SDIN J4 P1–2 SYNC SYNC J5 P1–4 SDO/LDAC LDAC J6 P1–5 A LK2 B SDO P1–13 P1–19 P1–20 P1–21 P1–22 P1–23 P1–24 P1–25 P1–26 P1–27 P1–28 P1–29 P1–30 P2–3 C11 0.1μF P2–2 C13 0.1μF ...
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Figure 61. Component Side Artwork Rev Page AD5426/AD5432/AD5443 ...
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AD5426/AD5432/AD5443 Figure 62. Solder Side Artwork Rev Page ...
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OVERVIEW OF AD54xx AND AD55xx DEVICES Table 12. Part No. Resolution No. DACs AD5424 8 1 AD5426 8 1 AD5428 8 2 AD5429 8 2 AD5450 8 1 AD5432 10 1 AD5433 10 1 AD5439 10 2 AD5440 10 2 ...
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... AD5426/AD5432/AD5443 OUTLINE DIMENSIONS ORDERING GUIDE Model Resolution (Bit) AD5426YRM 8 AD5426YRM-REEL 8 AD5426YRM-REEL7 8 1 AD5426YRMZ 8 1 AD5426YRMZ-REEL 8 1 AD5426YRMZ-REEL7 8 AD5432YRM 10 AD5432YRM-REEL7 10 1 AD5432YRMZ 10 AD5432YRMZ-REEL AD5432YRMZ-REEL7 10 AD5443YRM 12 AD5443YRM-REEL 12 AD5443YRM-REEL7 12 1 AD5443YRMZ 12 1 AD5443YRMZ-REEL 12 1 AD5443YRMZ-REEL7 12 EVAL-AD5426EB EVAL-AD5432EB EVAL-AD5443EB EVAL-AD5443-DBRDZ RoHS Compliant Part, # denotes RoHS compliant product may be top or bottom marked. ...