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AD5547 Datasheet(PDF) 10 Page - Analog Devices

Part # AD5547
Description  Dual Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors
PDF  20 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5547 Datasheet(HTML) 10 Page - Analog Devices

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AD5547/AD5557
Rev. 0 | Page 10 of 20
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. AD5547 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. AD5547 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. AD5547 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. AD5547 Bipolar Reference Multiplying Bandwidth (Codes from
Midscale to Full Scale)



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