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參數(shù)資料
| 型號： | AD9238BST-20 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | TV07RW21-35SD W/ PC CONT |
| 中文描述： | 2-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP64 |
| 封裝： | MS-026-BBD, LQFP-64 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大?。?/td> | 1737K |
| 代理商： | AD9238BST-20 |
–4–
AD9238
AC SPECIFICATIONS
Test
Level
AD9238BST-20
Min
Typ
AD9238BST-40
Min
Typ
AD9238BST-65
Min
Typ
Parameter
SIGNAL-TO-NOISE RATIO
INPUT
f
= 2.4 MHz
INPUT
f
= 9.7 MHz
Temp
Max
Max
Max
Unit
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
V
V
IV
V
IV
V
IV
V
70.4
70.2
70.4
70.4
70.3
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
69.7
INPUT
f
= 19.6 MHz
70.1
70.3
69.7
INPUT
f
= 32.5 MHz
69.3
69.5
67.6
68.7
INPUT
f
= 100 MHz
68.7
68.3
SIGNAL-TO-NOISE AND
DISTORTION RATIO
INPUT
f
= 2.4 MHz
INPUT
f
= 9.7 MHz
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
V
V
IV
V
IV
V
IV
V
70.2
70.1
70.2
70.2
70.1
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
69.3
INPUT
f
= 19.6 MHz
69.9
70.1
69.4
INPUT
f
= 32.5 MHz
68.9
69.1
66.6
68.1
INPUT
f
= 100 MHz
67.9
67.9
TOTAL HARMONIC
DISTORTION
INPUT
f
= 2.4 MHz
INPUT
f
= 9.7 MHz
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
V
V
I
V
I
V
I
V
–83.0
–81.0
–83.0
–83.0
–83.0
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
–74.6
INPUT
f
= 19.6 MHz
–81.0
–83.0
–75.5
INPUT
f
= 32.5 MHz
–78.0
–80.0
–74.0
–71.7
INPUT
f
= 100 MHz
–77.0
–79.0
WORST HARMONIC
(2nd or 3rd)
INPUT
f
= 9.7 MHz
INPUT
f
= 19.6 MHz
INPUT
f
= 32.5 MHz
SPURIOUS FREE
DYNAMIC RANGE
INPUT
f
= 2.4 MHz
INPUT
f
= 9.7 MHz
Full
Full
Full
V
V
V
–84.0
dBc
dBc
dBc
–85.0
–80.0
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
Full
V
V
I
V
I
V
I
V
V
86.0
84.0
86.0
86.0
86.0
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dB
76.1
INPUT
f
= 19.6 MHz
85.0
86.0
76.7
INPUT
f
= 32.5 MHz
80.0
83.0
75.0
–80
72.5
INPUT
f
= 100 MHz
79.0
–80
81.0
–80
CROSSTALK
Specifications subject to change without notice.
(AVDD = 3 V, DRVDD = 2.5 V, Maximum Sample Rate, CLK_A = CLK_B; AIN = –0.5 dBFS Differential Input,
1.0 V Internal Reference, T
MIN
to T
MAX
, un ess oth er wise noted.)
Figure 1. Timing Diagram
REV. A
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