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AD5678 Datasheet(PDF) 16 Page - Analog Devices

Part No. AD5678
Description  4 × 12-Bit and 4 × 16-Bit Octal DAC with On-Chip Reference in 14-Lead TSSOP
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5678 Datasheet(HTML) 16 Page - Analog Devices

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AD5678
Rev. A | Page 16 of 28
SAMPLE
2.505
2.485
0
512
64
128
192
256
320
384
448
VDD = 5V
VREFOUT = 2.5V
TA = 25°C
4ns/SAMPLE NUMBER
GLITCH IMPULSE = 3.55nV-s
1 LSB CHANGE AROUND
MIDSCALE (0x8000 TO 0x7FFF)
2.486
2.487
2.488
2.489
2.490
2.491
2.492
2.493
2.494
2.495
2.496
2.497
2.498
2.499
2.500
2.501
2.502
2.503
2.504
Figure 34. Digital-to-Analog Glitch Impulse (Negative)
SAMPLE
2.5000
2.4950
0
512
2.4955
2.4960
2.4965
2.4970
2.4975
2.4980
2.4985
2.4990
2.4995
64
128
192
256
320
384
448
VDD = 5V
VREFOUT = 2.5V
TA = 25°C
4ns/SAMPLE NUMBER
Figure 35. Analog Crosstalk
SAMPLE
2.4900
2.4855
0
512
64
128
192
256
320
384
448
2.4860
2.4865
2.4870
2.4875
2.4880
2.4885
2.4890
2.4895
VDD = 5V
VREFOUT = 2.5V
TA = 25°C
4ns/SAMPLE NUMBER
Figure 36. DAC-to-DAC Crosstalk
1
Y AXIS = 2
μV/DIV
X AXIS = 4s/DIV
VDD = VREF = 5V
TA = 25°C
DAC LOADED WITH MIDSCALE
Figure 37. 0.1 Hz to 10 Hz Output Noise Plot, External Reference
5s/DIV
1
VDD = 5V
VREFOUT = 2.5V
TA = 25°C
DAC LOADED WITH MIDSCALE
Figure 38. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
4s/DIV
1
VDD = 3V
VREFOUT = 1.25V
TA = 25°C
DAC LOADED WITH MIDSCALE
Figure 39. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference


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