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參數(shù)資料
| 型號： | AD9225-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Complete 12-Bit, 25 MSPS Monolithic A/D Converter |
| 中文描述： | 完整的12位，25 MSPS的單片機的A / D轉換器 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 321K |
| 代理商： | AD9225-EB |
–3–
REV. A
AD9225
AC SPECIFICATIONS
Parameter
Min
Typ
Max
Units
SIGNAL-TO-NOISE AND DISTORTION RATIO (S/N+D)
f
INPUT
= 2.5 MHz
f
INPUT
= 10 MHz
SIGNAL-TO-NOISE RATIO (SNR)
f
INPUT
= 2.5 MHz
f
INPUT
= 10 MHz
TOTAL HARMONIC DISTORTION (THD)
f
INPUT
= 2.5 MHz
f
INPUT
= 10 MHz
SPURIOUS FREE DYNAMIC RANGE
f
INPUT
= 2.5 MHz
f
INPUT
= 10 MHz
Full Power Bandwidth
Small Signal Bandwidth
Aperture Delay
Aperture Jitter
Acquisition to Full-Scale Step
Specifications subject to change without notice.
67.4
66.7
70.7
69.6
dB
dB
69.0
68.2
71
70
dB
dB
–82
–81
–72
–71.5
dB
dB
73
72.5
–85
–83
105
105
1
1
10
dB
dB
MHz
MHz
ns
ps rms
ns
DIGITAL SPECIFICATIONS
Parameters
LOGIC INPUTS
High Level Input Voltage
Low Level Input Voltage
High Level Input Current (V
IN
= DRVDD)
Low Level Input Current (V
IN
= 0 V)
Input Capacitance
LOGIC OUTPUTS
High Level Output Voltage (I
OH
= 50
μ
A)
High Level Output Voltage (I
OH
= 0.5 mA)
Low Level Output Voltage (I
OL
= 1.6 mA)
Low Level Output Voltage (I
OL
= 50
μ
A)
Output Capacitance
LOGIC OUTPUTS (with DRVDD = 3 V)
High Level Output Voltage (I
OH
= 50
μ
A)
High Level Output Voltage (I
OH
= 0.5 mA)
Low Level Output Voltage (I
OL
= 1.6 mA)
Low Level Output Voltage (I
OL
= 50
μ
A)
Specifications subject to change without notice
.
Symbol
Min
Typ
Max
Units
V
IH
V
IL
I
IH
I
IL
C
IN
+3.5
V
V
μ
A
μ
A
pF
+1.0
+10
+10
–10
–10
5
V
OH
V
OH
V
OL
V
OL
C
OUT
+4.5
+2.4
V
V
V
V
pF
+0.4
+0.1
5
V
OH
V
OH
V
OL
V
OL
+2.95
+2.80
V
V
V
V
+0.4
+0.05
SWITCHING SPECIFICATIONS
Parameters
Clock Period
1
CLOCK Pulsewidth High
CLOCK Pulsewidth Low
Output Delay
Pipeline Delay (Latency)
Symbol
t
C
t
CH
t
CL
t
OD
Min
40
18
18
13
Typ
Max
Units
ns
ns
ns
ns
Clock Cycles
3
NOTES
1
The clock period may be extended to 1 ms without degradation in specified performance @ +25
°
C.
Specifications subject to change without notice.
(AVDD = +5 V, DRVDD = +5 V, f
SAMPLE
= 25 MSPS, VREF
= 2.0 V, T
MIN
to T
MAX
, Differential Input unless otherwise noted)
(AVDD = +5 V, DRVDD = +5 V, unless otherwise noted)
(T
MIN
to T
MAX
with AVDD = +5 V, DRVDD = +5 V, C
L
= 20 pF)
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