AD5443 Analog Devices, AD5443 Datasheet
AD5443
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AD5443 Summary of contents
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... MHz. The applied external reference input voltage, V output current. An integrated feedback resistor, R temperature tracking and full-scale voltage output when combined with an external current to voltage precision amplifier. The AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages. 1 U.S. Patent No. 5,689,257 FUNCTIONAL BLOCK DIAGRAM ...
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... Amplifier Selection .................................................................... 18 Serial Interface ............................................................................ 20 Microprocessor Interface .......................................................... 21 PCB Layout and Power Supply Decoupling ................................ 23 Evaluation Board for the AD5426/AD5432/AD5443 Series of DACs ............................................................................................ 23 Operating the Evaluation Board .............................................. 23 Overview of AD54xx and AD55xx Devices ............................... 27 Outline Dimensions ....................................................................... 28 Ordering Guide .......................................................................... 28 ...
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... Rev Page AD5426/AD5432/AD5443 to T MIN MAX Conditions Guaranteed monotonic Guaranteed monotonic Guaranteed monotonic Data = 0x0000 25° OUT Data = 0x0000 −40°C to 125° OUT Input resistance TC = −50 ppm/°C Input resistance TC = − ...
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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 SFDR Performance (Narrow Band) 50 kHz f OUT 20 kHz f OUT Intermodulation Distortion POWER REQUIREMENTS ...
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... DB0 Figure 2. Standalone Mode Timing Diagram DB15 DB0 ( DB15(N) Figure 3. Daisy-Chain and Readback Modes Timing Diagram Rev Page AD5426/AD5432/AD5443 + unless otherwise noted. MIN MAX DB0 ( DB0(N) ...
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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 GND OUT OUT 1 Logic Inputs and Output Operating Temperature Range Extended Industrial (Y Version) ...
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... DAC Feedback Resistor Pin. Establish voltage output for the DAC by connecting to external amplifier output OUT FB AD5426 OUT REF AD5432/ GND AD5443 SCLK SDO 4 7 TOP VIEW SDIN (Not to Scale) SYNC 5 6 Figure 5. Pin Configuration Rev Page AD5426/AD5432/AD5443 ...
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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 25° 10V REF 0 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 200 400 600 CODE Figure 7. INL vs. Code (10-Bit DAC) 1 ...
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... Figure 17. Gain and Offset Errors vs. V Rev Page AD5426/AD5432/AD5443 MAX INL T = 25° REF AD5443 MAX DNL MIN INL MIN DNL 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 V (V) BIAS Figure 15. Linearity vs. V Voltage Applied to I BIAS = 25°C A MAX DNL = 2 ...
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... MIN DNL –3 0.5 1.0 1.5 V (V) BIAS Figure 19. Linearity vs. V Voltage Applied to I BIAS 25° 2.5V REF AD5443 2 MAX DNL 1 0 –1 –2 –3 –4 –5 0.5 1.0 V (V) BIAS Figure 20. Linearity vs. V Voltage Applied to I BIAS GAIN ERROR 1.4 1.6 1.8 2.0 Voltage Applied Figure 21 ...
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... Figure 28. Midscale Transition REF T = 25°C V 5V, 3.5V REF 3.5V NRG = 1.184nVs REF 0x7FF TO 0x800 AD8038 AMPLIFIER C = 1.8pF COMP AD5443 V 3V, 3.5V REF DD NRG = 1.433nVs 0x7FF TO 0x800 V 3V, 3.5V REF DD NRG = 0.647nVs 0x800 TO 0x7FF V 5V, 3.5V REF, NRG = 0.364nVs, DD 0x800 TO 0x7FF 0 50 100 150 ...
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... MCLK = 200kHz 80 MCLK = 500kHz 25° 3.5V REF AD8038 AMP AD5443 (kHz) OUT Figure 33. Wideband SFDR vs. f Frequency (AD5443) OUT 80 MCLK = 500kHz MCLK = 200kHz 25° 3.5V REF AD8038 AMP AD5426 (kHz) OUT Figure 34 ...
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... Figure 39. Narrowband (±50%) IMD f Rev Page AD5426/AD5432/AD5443 T = 25° 3.5V REF AD8038 AMPLIFIER AD5443 FREQUENCY (Hz kHz, Update = 1 MHz OUT T = 25° 3.5V REF AD8038 AMPLIFIER AD5443 FREQUENCY (Hz kHz, 25 kHz, Update = 1 MHz OUT ...
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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 is normally expressed in LSBs percentage of full-scale reading. Differential Nonlinearity ...
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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 has a value of R. The value typically 10 kΩ ...
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... D is the fractional representation of the digital word loaded to the DAC and n is the resolution of the DAC 255 (8-bit AD5426 1023 (10-bit AD5432 4095 (12-bit AD5443) When signal, the circuit performs 4-quadrant IN multiplication. Table 6 shows the relationship between digital code and the expected output voltage for bipolar operation (AD5426, 8-bit device) ...
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... Figure 43. Single-Supply Current Mode Operation In this configuration, the output voltage is given × × − V OUT FB DAC BIAS As D varies from 0 to 255 (AD5426), 1023 (AD5432) or 4095 (AD5443), the output voltage varies from − V OUT BIAS OUT BIAS IN V ...
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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 consider the effect of temperature coefficients of the thin film resistors of the DAC. Simply placing a resistor in series with the ...
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... (Max) (μV) I (Max) (nA) Noise (μV p-p) B 0.1 0.5 2 0.4 0.05 1 0.001 2.3 0.1 0.5 (MHz) Slew Rate (V/μs) CL 180 100 425 1,300 Rev Page AD5426/AD5432/AD5443 and AGND), they settle quickly. IN REF I (mA) Output Noise μV p 0.8 3.5 0.8 8 ...
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... This 16-bit word consists of 4 control bits and either data bits as shown in Figure 48, Figure 49, and Figure 50. The AD5443 uses all 12 bits of DAC data. The AD5432 uses 10 bits and ignores the 2 LSBs, while the AD5426 uses 8 bits and ignores the last 4 bits. ...
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... The ADSP-BF5xx family of processors has an SPI-compatible port that enables the processor to communicate with SPI- compatible devices. A serial interface between the ADSP-BF5xx and the AD526/AD5432/AD5443 DAC is shown in Figure 53. In this configuration, data is transferred through the master output/slave input (MOSI) pin. SYNC is driven by the SPI chip select pin, which is a reconfigured programmable flag pin ...
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... SCK of the 68HC11 drives the SCLK of the DAC interface, the MOSI output drives the serial data line (DIN) of the AD5426/AD5432/AD5443. The SYNC signal is derived from a port line (PC7). When data is being transmitted to the DAC, the SYNC line is taken low (PC7) ...
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... EVALUATION BOARD FOR THE AD5426/AD5432/AD5443 SERIES OF DACS The evaluation board consists of a 12-bit AD5443 and a current-to-voltage amplifier, the AD8065. Included on the evaluation board reference, the ADR01. An external reference may also be applied via an SMB input. ...
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... 10μF 0.1μF ADR01AR V DD TRIM 5 GND 4 + C12 10μF AGND + C14 10μF V DD1 C16 10μF Figure 59. Schematic of AD5426/AD5432/AD5443 Evaluation Board SCLK J3 C11 U3 SCLK J1 VOUT SDIN U1 J4 SDIN R1 C6 SYNC VREF LK1 SYNC U2 C3 SDO/LDAC J5 J2 VREF SDO/LDAC ...
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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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... Parallel RU-28 ±2 Serial RU-16 ±2 Parallel RU-38 Rev Page AD5426/AD5432/AD5443 Features 10 MHz BW pulse width 10 MHz BW, 50 MHz serial 10 MHz BW pulse width 10 MHz BW, 50 MHz serial 10 MHz BW, 50 MHz serial 10 MHz BW, 50 MHz serial 10 MHz BW pulse width ...
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... 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. ©2004–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...