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