AD5428 Analog Devices, AD5428 Datasheet
AD5428
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AD5428 Summary of contents
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... The applied external reference input voltage (V the full-scale output current. An integrated feedback resistor (R provides temperature tracking and full-scale voltage output when combined with an external I-to-V precision amplifier. The AD5428 is available in a small 20-lead TSSOP package, and the AD5440/AD5447 DACs are available in small 24-lead TSSOP packages ...
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... Changes to Table 9 Through Table 11 ......................................... 21 Changes to Microprocessor Interfacing Section ........................ 22 Added Figure 44 Through Figure 46 ........................................... 22 Added 8xC51-to-AD5428/AD5440/AD5447 Interface Section ........................................................................ 22 Added ADSP-BF5xx-to-AD5428/AD5440/AD5447 Interface Section ........................................................................ 22 Changes to Power Supplies for the Evaluation Board Section.... 23 Changes to Table 13 ....................................................................... 28 Updated Outline Dimensions....................................................... 29 Changes to Ordering Guide .......................................................... 29 7/04— ...
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... Rev Page AD5428/AD5440/AD5447 to T MIN MAX Conditions Guaranteed monotonic Guaranteed monotonic Guaranteed monotonic Data = 0x0000 25°C A Data = 0x0000 Input resistance TC = –50 ppm/°C Typ = 25°C, max = 125° 3 5 ...
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... AD5428/AD5440/AD5447 Parameter Multiplying Feedthrough Error Output Capacitance Digital Feedthrough Output Noise Spectral Density Analog THD Digital THD 100 kHz f OUT 50 kHz f OUT SFDR Performance (Wide Band) Clock = 10 MHz 500 kHz f OUT 100 kHz f OUT 50 kHz f OUT Clock = 25 MHz 500 kHz f OUT ...
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... OUTPUT PIN C L 50pF 200μ Figure 3. Load Circuit for Data Output Timing Specifications Rev Page AD5428/AD5440/AD5447 + V )/ unless otherwise noted. MIN MAX Conditions/Comments R setup time R hold time CS low time Address setup time ...
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... AD5428/AD5440/AD5447 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 DGND REF REF DGND OUT OUT 1 Logic Inputs and Output Operating Temperature Range ...
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... Data Sheet PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 4. AD5428 Pin Function Descriptions Pin No. Mnemonic Description 1 AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to achieve single-supply operation DAC Current Outputs. ...
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... AD5428/AD5440/AD5447 Table 5. AD5440 Pin Function Descriptions Pin No. Mnemonic Function AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to 1 achieve single-supply operation DAC Current Outputs. OUT OUT DAC Feedback Resistor Pins. Establish voltage output for the DAC by connecting to an external amplifier ...
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... FB REF REF DD AD5447 TOP VIEW R/W DGND 5 20 (Not to Scale) DAC A DB11 7 18 DB0 (LSB) DB10 8 17 DB1 DB9 9 16 DB2 DB8 10 DB3 15 DB7 DB4 11 14 DB6 DB5 12 13 Figure 6. Pin Configuration 24-Lead TSSOP (RU-24) Rev Page AD5428/AD5440/AD5447 ...
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... AD5428/AD5440/AD5447 TYPICAL PERFORMANCE CHARACTERISTICS 0. 25° 10V REF 0. 0.10 0.05 0 –0.05 –0.10 –0.15 –0. 100 150 CODE Figure 7. INL vs. Code (8-Bit DAC) 0 25° 10V REF 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 200 400 600 CODE Figure 8. INL vs. Code (10-Bit DAC) 1 ...
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... TEMPERATURE (°C) Figure 15. Gain Error vs. Temperature T = 25° 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 80 100 120 140 Rev Page AD5428/AD5440/AD5447 2. 0.5 1.0 1.5 2.0 2.5 3.0 3.5 INPUT VOLTAGE (V) Figure 16. Supply Current vs. Logic Input Voltage OUT OUT DD 0 – ...
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... AD5428/AD5440/AD5447 25°C A LOADING 100 1k 10k 100k FREQUENCY (Hz) Figure 19. Supply Current vs. Update Rate 25°C ALL LOADING DB11 – DB10 –12 DB9 –18 DB8 –24 DB7 –30 DB6 –36 DB5 –42 DB4 –48 DB3 – ...
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... OUT Figure 27. Wideband SFDR vs. f 100k 1M 10M 100k 25° 3.5V REF AMP = AD8038 140 160 180 200 Frequency OUT Rev Page AD5428/AD5440/AD5447 90 80 MCLK = 5MHz 70 MCLK = 10MHz 60 50 MCLK = 25MHz 100 200 300 400 500 600 ...
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... AD5428/AD5440/AD5447 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 0 0.5 1.0 1.5 2.0 2.5 3.0 FREQUENCY (MHz) Figure 31. Wideband SFDR kHz, Clock = 10 MHz OUT 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 250 300 350 400 450 500 550 FREQUENCY (kHz) Figure 32. Narrow-Band SFDR, f ...
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... Narrow-band SFDR is a measure of SFDR over an arbitrary window size, in this case 50%, of the fundamental. Digital SFDR is a measure of the usable dynamic range of the DAC when the signal is a digitally generated sine wave. Rev Page AD5428/AD5440/AD5447 pins and, subsequently, OUT 1 terminal when all 0s are OUT ...
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... DAC SECTION The AD5428/AD5440/AD5447 are CMOS 8-, 10-, and 12-bit, dual-channel, current output DACs consisting of a standard inverting R-2R ladder configuration. Figure 37 shows a simplified diagram for a single channel of the 8-bit AD5428. The feedback resistor R A has a value of R. The value typically 10 kΩ FB (with a minimum of 8 kΩ ...
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... REF OUT 8-/10-/12-BIT LATCH R-2R DAC A AGND OUT 8-/10-/12-BIT LATCH R-2R DAC REF (±10V) Figure 38. Unipolar Operation Rev Page AD5428/AD5440/AD5447 OUT AGND OUT AGND ...
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... V OUT REF REF where the fractional representation of the digital word loaded to the DAC 255 (AD5428 1023 (AD5440 4095 (AD5447 the number of bits. When signal, the circuit performs 4-quadrant IN multiplication. Table 8 shows the relationship between digital code and the expected output voltage for bipolar operation using the 8-bit AD5428 ...
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... DAC. This approach is recommended in circuits where gains of greater than 1 are required. V OUT V IN NOTES 1. ADDITIONAL PINS OMITTED FOR CLARITY PHASE COMPENSATION (1pF TO 2pF) MAY BE REQUIRED HIGH SPEED AMPLIFIER. polarity for REF Rev Page AD5428/AD5440/AD5447 ADR03 V V OUT IN GND + ...
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... AD5428/AD5440/AD5447 DIVIDER OR PROGRAMMABLE GAIN ELEMENT Current-steering DACs are very flexible and lend themselves to many applications. If this type of DAC is connected as the feedback element amp and R FB resistor, as shown in Figure 43, the output voltage is inversely proportional to the digital input fraction, D. −n For − 2 ...
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... Noise (μV p-p) B 0.1 0.5 2 0.4 0.05 1 0.001 2.3 0.1 0.5 Slew Rate (V/μs) VOS (Max) (μV) 180 1,500 120 1,000 425 3,000 1,300 10,000 Rev Page AD5428/AD5440/AD5447 I (mA) Output Noise (μV p-p) Package SOIC TSOT-23, SC70 1 10 SOIC TSOT-23, SC70 1 6 SOIC TSOT-23, SC70 ...
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... ADSP-21xx-to-AD5428/AD5440/AD5447 Interface Figure 44 shows the AD5428/AD5440/AD5447 interfaced to the ADSP-21xx series of DSPs as a memory-mapped device. A single wait state may be necessary to interface the AD5428/ AD5440/AD5447 to the ADSP-21xx, depending on the clock speed of the DSP. The wait state can be programmed via the data memory wait state control register of the ADSP-21xx (see the ADSP-21xx family’ ...
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... In any circuit where accuracy is important, careful consideration of the power supply and ground return layout helps to ensure the rated performance. The printed circuit board on which the AD5428/AD5440/AD5447 is mounted should be designed so that the analog and digital sections are separate and confined to certain areas of the board. If the DAC ...
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... AD5428/AD5440/AD5447 Figure 47. Schematic of AD5447 Evaluation Board Rev Page Data Sheet ...
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... Data Sheet Figure 48. Component-Side Artwork Figure 49. Silkscreen—Component-Side View (Top Layer) Rev Page AD5428/AD5440/AD5447 ...
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... AD5428/AD5440/AD5447 Figure 50. Solder-Side Artwork Rev Page Data Sheet ...
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... V 10 0.1 μ μ 0.1 μF 10 Rev Page AD5428/AD5440/AD5447 Stock Code FEC 499-675 FEC 499-675 FEC 197-427 FEC 499-675 FEC 197-130 FEC 499-675 FEC 721-876 FEC 499-675 FEC 197-427 FEC 499-675 FEC 197-427 FEC 499-675 FEC 499-675 ...
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... AD5428/AD5440/AD5447 OVERVIEW OF AD54xx DEVICES Table 13. 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 AD5451 10 1 AD5443 12 1 AD5444 12 1 AD5415 12 2 AD5405 12 2 AD5445 12 2 AD5447 12 2 AD5449 ...
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... COPLANARITY 0.19 SEATING 0.10 PLANE COMPLIANT TO JEDEC STANDARDS MO-153-AC Figure 51. 20-Lead Thin Shrink Outline Package [TSSOP] (RU-20) Dimensions shown in millimeters ORDERING GUIDE 1 Model Resolution AD5428YRU 8 AD5428YRU-REEL 8 AD5428YRU-REEL7 8 AD5428YRUZ 8 AD5428YRUZ-REEL 8 AD5428YRUZ-REEL7 8 AD5440YRU 10 AD5440YRU-REEL 10 AD5440YRU-REEL7 10 AD5440YRUZ 10 AD5440YRUZ-REEL 12 AD5440YRUZ-REEL7 12 AD5447YRU 12 AD5447YRU-REEL 12 AD5447YRUZ 12 AD5447YRUZ-REEL 12 AD5447YRUZ-REEL7 12 EVAL-AD5447EBZ RoHS Compliant Part. ...
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... AD5428/AD5440/AD5447 NOTES Rev Page Data Sheet ...
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... Data Sheet NOTES Rev Page AD5428/AD5440/AD5447 ...
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... AD5428/AD5440/AD5447 NOTES ©2004–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04462-0-8/11(C) Rev Page Data Sheet ...