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AD9268 数据表(PDF) 9 Page - Analog Devices

部件名 AD9268
功能描述  16-Bit, 80 MSPS/105 MSPS/125 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
PDF  44 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9268 数据表(HTML) 9 Page - Analog Devices

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AD9268
Rev. A | Page 9 of 44
SWITCHING SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, and DCS enabled,
unless otherwise noted.
Table 4.
AD9268BCPZ-80
AD9268BCPZ-105
AD9268BCPZ-125
Parameter
Temperature
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
CLOCK INPUT PARAMETERS
Input Clock Rate
Full
625
625
625
MHz
Conversion Rate1
DCS Enabled
Full
20
80
20
105
20
125
MSPS
DCS Disabled
Full
10
80
10
105
10
125
MSPS
CLK Period—Divide-by-1 Mode (tCLK)
Full
12.5
9.5
8
ns
CLK Pulse Width High (tCH)
Divide-by-1 Mode, DCS Enabled
Full
3.75
6.25
8.75
2.85
4.75
6.65
2.4
4
5.6
ns
Divide-by-1 Mode, DCS Disabled
Full
5.95
6.25
6.55
4.5
4.75
5.0
3.8
4
4.2
ns
Divide-by-2 Mode Through Divide-
by-8 Mode
Full
0.8
0.8
0.8
ns
Aperture Delay (tA)
Full
1.0
1.0
1.0
ns
Aperture Uncertainty (Jitter, tJ)
Full
0.07
0.07
0.07
ps
rms
DATA OUTPUT PARAMETERS
CMOS Mode
Data Propagation Delay (tPD)
Full
2.8
3.5
4.2
2.8
3.5
4.2
2.8
3.5
4.2
ns
DCO Propagation Delay (tDCO)2
Full
3.1
3.1
3.1
ns
DCO to Data Skew (tSKEW)
Full
−0.6
−0.4
0
−0.6
−0.4
0
−0.6
−0.4
0
ns
LVDS Mode
Data Propagation Delay (tPD)
Full
2.9
3.7
4.5
2.9
3.7
4.5
2.9
3.7
4.5
ns
DCO Propagation Delay (tDCO)2
Full
3.9
3.9
3.9
ns
DCO to Data Skew (tSKEW)
Full
−0.1
+0.2
+0.5
−0.1
+0.2
+0.5
−0.1
+0.2
+0.5
ns
CMOS Mode Pipeline Delay
(Latency)
Full
12
12
12
Cycles
LVDS Mode Pipeline Delay (Latency)
Channel A/Channel B
Full
12/12.5
12/12.5
12/12.5
Cycles
Wake-Up Time3
Full
500
500
500
μs
Out-of-Range Recovery Time
Full
2
2
2
Cycles
1 Conversion rate is the clock rate after the divider.
2 Additional DCO delay can be added by writing to Bit 0 through Bit 4 in SPI Register 0x17 (see Table 17).
3 Wake-up time is defined as the time required to return to normal operation from power-down mode.



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