AD9721 Analog Devices, Inc., AD9721 Datasheet
![no-image](/images/no-image-200.jpg)
AD9721
Available stocks
Related parts for AD9721
AD9721 Summary of contents
Page 1
... DAC such as the industry-standard AD9721. The proliferation of digital communications into base station and high volume subscriber-end markets has created a demand for excellent DAC performance delivered at reduced levels of power dissipation and cost ...
Page 2
AD9731–SPECIFICATIONS Parameter RESOLUTION MAX CONVERSION RATE DC ACCURACY Differential Nonlinearity Integral Nonlinearity INITIAL OFFSET ERROR Zero-Scale Offset Error 1 Full-Scale Gain Error Offset Drift Coefficient REFERENCE/CONTROL AMP 2 Internal Reference Voltage Internal Reference Voltage Drift 3 Internal Reference Output Current ...
Page 3
SPECIFICATIONS Parameter SFDR PERFORMANCE (Narrowband) 2 MHz; 2 MHz Span 25 MHz, 2 MHz Span 10 MHz, 5 MHz Span (Clock = 170 MHz) INTERMODULATION DISTORTION F1 = 800 kHz 900 kHz 15 POWER SUPPLY Digital –V Supply ...
Page 4
AD9731 ABSOLUTE MAXIMUM RATINGS* Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . – ...
Page 5
Pin No. Mnemonic 1 D9(MSB) 2–9 D8–D1 10 D0(LSB) 11 CLOCK 12 DIGITAL +V S 15, 18, 28 GND 16 DIGITAL – SET 19 ANALOG RETURN 20 I OUT 21 I OUTB 22 ANALOG ...
Page 6
AD9731 –Typical Performance Characteristics – MHz OUT TPC 1. Narrowband SFDR (Clock = 170 MHz) vs. f Frequency OUT ...
Page 7
I – mA OUT TPC 7. SFDR vs. I (Clock =125 MHz/f OUT 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 TPC 8. Typical Differential Nonlinearity Performance (DNL) ...
Page 8
AD9731 –10 ENCODE = 125MHz f –20 = 40MHz OUT SPAN = 62.5MHz –30 –40 –50 –60 –70 –80 –90 –100 0Hz 6.25MHz/DIV START TPC 13. Wideband SFDR 40 MHz f 125 MHz Clock 0 ENCODE = 170MHz f –10 ...
Page 9
THEORY AND APPLICATIONS The AD9731 high speed digital-to-analog converter utilizes most significant bit decoding and segmentation techniques to reduce glitch impulse and deliver high dynamic performance on lower power consumption than previous bipolar DAC technologies. The design is based on ...
Page 10
AD9731 The REFERENCE IN pin can also be driven directly for wider bandwidth multiplying operation. The analog signal for this mode of operation must have a signal swing in the range of –3 –4.25 V. This can be ...
Page 11
REV. B Figure 6. PCB Evaluation Board Schematic –11– AD9731 ...
Page 12
AD9731 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN 2.00 MAX 0.05 MIN Revision History Location 5/03–Data Sheet ...