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AD5546 Datasheet(PDF) 9 Page - Analog Devices |
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AD5546 Datasheet(HTML) 9 Page - Analog Devices |
9 / 16 page ![]() AD5546/AD5556 Rev. 0 | Page 9 of 16 3.0 2.5 10k 100k 1M 10M 100M 2.0 1.5 1.0 0.5 0 CLOCK FREQUENCY (Hz) 0x5555 0x8000 0xFFFF 0x0000 Figure 12. AD5546 Supply Current vs. Clock Frequency 90 70 10 100 1k 10k 100k 1M 50 40 60 80 30 10 20 0 FREQUENCY (Hz) VDD =5V ± 10% VREF =10V Figure 13. Power Supply Rejection Ratio vs. Frequency LDAC VOUT 1 2 CH1 5.00V CH2 2.00V M 200ns A CH1 2.70V B CH1 –6.20V 400.00ns Figure 14. Settling Time from Full Scale to Zero Scale 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VDD =5V VREF =10V CODES 0x8000 ↔0x7FFF TIME ( µs) VOUT (50mV/DIV) LDAC (5V/DIV) Figure 15. AD5546 Midscale Transition and Digital Feedthrough 0xFFFF 0x8000 0x4000 –12dB –24dB –36dB –48dB –60dB –72dB –84dB –96dB –108dB 0x2000 0x1000 0x0800 0x0400 0x0200 0x0100 0x0080 0x0040 0x0020 0x0010 0x0008 0x0004 0x0002 0x0001 0x0000 10 100 1k 100k 10k 1M 10M START 10.000Hz STOP 50 000 000.000Hz REF LEVEL 0.000dB /DIV 12.000dB MARKER 4 41 677.200Hz MAG (A/R) –2.939db Figure 16. AD5546 Unipolar Reference Multiplying Bandwidth 0 –12 –24 –36 –48 –60 –72 –84 –96 –108 –120 10 100 1k 100k 10k 1M 10M START 10.000Hz STOP 10 000 000.000Hz REF LEVEL 0.000dB /DIV 12.000dB ALL BITS ON D15 AND D14 ON D15 AND D13 ON D15 AND D12 ON D15 AND D11 ON D15 AND D10 ON D15 AND D9 ON D15 AND D8 ON D15 AND D7 ON D15 AND D6 ON D15 AND D5 ON D15 AND D4 ON D15 AND D3 ON D15 AND D2 ON D15 AND D1 ON D15 AND D0 ON D15 ON Figure 17. AD5546 Bipolar Reference Multiplying Bandwidth (Codes from Midscale to Full Scale) |
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