參數(shù)資料
型號: AD9632AR
廠商: ANALOG DEVICES INC
元件分類: 音頻/視頻放大
英文描述: Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps
中文描述: VIDEO AMPLIFIER, PDSO8
封裝: SOIC-8
文件頁數(shù): 16/20頁
文件大小: 528K
代理商: AD9632AR
AD9631/AD9632
REV. A
–16–
A/D Converter Driver
As A/D converters move toward higher speeds with higher reso-
lutions, there becomes a need for high performance drivers that
will not degrade the analog signal to the converter. It is desir-
able from a system’s standpoint that the A/D be the element in
the signal chain that ultimately limits overall distortion. This
places new demands on the amplifiers used to drive fast, high
resolution A/Ds.
With high bandwidth, low distortion and fast settling time the
AD9631 and AD9632 make high performance A/D drivers for
advanced converters. Figure 64 is an example of an AD9631
used as an input driver for an AD872. A 12-bit, 10 Msps A/D
converter.
MSB
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
BIT8
BIT9
BIT10
BIT11
BIT12
AV
DD
AGND
V
INA
REF GND
REF IN
REF OUT
AV
SS
AV
SS
AGND
OTR
CLK
DRGND
DRV
DD
DGND
DV
DD
19
18
17
16
15
14
13
12
11
10
9
8
24
25
3
26
28
27
1
20
21
23
22
6
7
4
5
V
INB
0.1
μ
F
–5V ANALOG
AD872
1
7
6
4
3
2
5
1
μ
F
+5V ANALOG
AD9631
ANALOG IN
0.1
μ
F
0.1
μ
F
0.1
μ
F
DIGITAL OUTPUT
0.1
μ
F
0.1
μ
F
10
49.9
CLOCK INPUT
0.1
μ
F
0.1
μ
F
140
+5V ANALOG
+5V DIGITAL
+5V DIGITAL
130
–5V
ANALOG
2
10
μ
F
10
μ
F
Figure 64. AD9631 Used as Driver for an AD872, a 12-Bit, 10 Msps A/D Converter
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