AD5447 Analog Devices, AD5447 Datasheet
AD5447
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AD5447 Summary of contents
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... 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. 1 U.S. Patent Number 5,689,257. ...
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... Single-Supply Applications ....................................................... 19 Adding Gain................................................................................ 19 REVISION HISTORY 8/11—Rev Rev. C Changes to CS Pin Description, Table 6 ........................................ 9 3/11—Rev Rev. B Changes to Evaluation Board For the AD5447 Section ............ 23 Changes to Figure 47 Caption....................................................... 24 Changes to Figure 49...................................................................... 25 Change to U1 Description in Table 12......................................... 27 Change to Ordering Guide............................................................ 29 7/05—Rev Rev. A Changed Pin DAC A/B to DAC A /B ...
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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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... V p-p, all 1s loaded 100 kHz REF Clock = 10 MHz 3.5 V REF AD5447, 65k codes 3.5 V REF AD5447, 65k codes 3.5 V REF AD5447, 65k codes 3.5 V REF Clock = 10 MHz Clock = 25 MHz T = 25°C, logic inputs = −40°C to +125°C, logic inputs = ∆ ...
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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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... OUT OUT REF AD5428 TOP VIEW REF DD (Not to Scale) DGND 5 R/W 16 DAC A DB7 7 DB0 (LSB) 14 DB6 8 DB1 13 DB5 9 DB2 12 10 DB4 11 DB3 Figure 4. Pin Configuration 20-Lead TSSOP (RU-20) Rev Page AD5428/AD5440/AD5447 ...
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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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... Data Sheet Table 6. AD5447 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. OUT OUT DAC Feedback Resistor Pins. Establish voltage output for the DAC by connecting to an external amplifier ...
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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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... AD5428/AD5440/AD5447 GENERAL DESCRIPTION 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 ...
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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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... 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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... AD5428/AD5440/AD5447 PARALLEL INTERFACE Data is loaded into the AD5428/AD5440/AD5447 in 8-, 10-, or 12-bit parallel word format. Control lines CS and R/ W allow data to be written to or read from the DAC register. A write event takes place when CS and R/ W are brought low, data available on the data lines fills the shift register, and the rising edge of CS latches the data and transfers the latched data-word to the DAC register. The DAC latches are not transparent ...
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... I-to-V amplifier should be located as close as possible to the device. EVALUATION BOARD FOR THE AD5447 The evaluation board consists of an AD5447 DAC 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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... 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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... FEC 499-675 FEC 240-345 (Pack) FEC 310-682 FEC 310-682 FEC 310-682 FEC 310-682 FEC 310-682 FEC 310-682 FEC 511-791 and FEC 528-456 FEC 147-753 FEC 151-792 FEC 240-345 (Pack) FEC 240-345 (Pack) AD5447YRU ADR01AR AD8065AR Fairchild 74ABT543CMTC CD74HCT139M AD8065AR FEC 148-922 ...
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... 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 12 2 AD5452 12 1 AD5446 14 1 AD5453 14 1 AD5553 14 1 AD5556 14 1 AD5555 14 2 AD5557 14 2 AD5543 16 1 AD5546 ...
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... 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. 24 PIN 1 0.15 0.05 0.75 8° 0.60 0° 0.45 0.10 COPLANARITY Figure 52. 24-Lead Thin Shrink Small Outline Package [TSSOP] INL (LSB) Temperature Range ±0.5 –40 °C to +125°C ±0.5 –40 °C to +125°C ± ...
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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 ...