参数资料
型号: EVAL-AD7264EDZ
厂商: Analog Devices Inc
文件页数: 5/29页
文件大小: 0K
描述: BOARD EVALUATION FOR AD7264
标准包装: 1
ADC 的数量: 1
位数: 14
采样率(每秒): 1M
数据接口: 串行
输入范围: 5 Vpp
在以下条件下的电源(标准): 120mW @ 1MSPS
工作温度: -40°C ~ 105°C
已用 IC / 零件: AD7264
已供物品:
AD7264
Data Sheet
Rev. B | Page 12 of 28
–90
–88
–86
–84
–82
–78
–76
–74
–72
–80
–70
1
2
3
4
6
8
12
16
24
32
48
64
96 128
06732-
018
GAIN
CM
R
(
d
B)
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
INTERNAL REFERENCE
fRIPPLE = 50kHz
Figure 17. Common-Mode Rejection vs. Gain
–80
–79
–78
–77
–76
–75
–74
–73
–72
–71
–70
0
20
40
60
80
100
120
140
160
180
200
06732-
019
RIPPLE FREQUENCY (kHz)
CM
R
(
d
B)
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
VRIPPLE = 700mV p-p
GAIN = 2
INTERNAL REFERENCE
Figure 18. Common-Mode Rejection vs. Common-Mode Ripple Frequency
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
3.3
3.5
3.7
G = 2
G = 3
G = 12
G = 24
G ≥ 32
G = 8
G = 16
06732-
020
VCM RANGE (V)
T
HD
(
d
B)
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
fIN = 100kHz
INTERNAL REFERENCE
G = 1
G = 4
G = 6
Figure 19. THD vs. Common-Mode Voltage Range for Various
PGA Gain Settings
06732-
021
OVERDRIVE VOLTAGE (mV)
P
RO
P
AG
AT
IO
N
DE
L
AY
(
s)
0
1
2
3
4
5
6
7
8
9
10
0
10
20
30
40
50
60
70
80
90
100
L TO H, CA_CBVCC = 4.5V
L TO H, CA_CBVCC = 5V
H TO L, CA_CBVCC = 3.6V
H TO L, CA_CBVCC = 4.5V
H TO L, CA_CBVCC = 5V
H TO L, CA_CBVCC = 2.7V
L TO H, CA_CBVCC = 3.6V
L TO H, CA_CBVCC = 2.7V
AVCC = 5V
VDRIVE = 3.3V
TA = 25°C
Figure 20. Propagation Delay for Comparator A and Comparator B
vs. Overdrive Voltage for Various Supply Voltages
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
06732-
022
OVERDRIVE VOLTAGE (mV)
P
RO
P
AG
AT
IO
N
DE
L
AY
(
s)
0
10
20
30
40
50
60
70
80
90
100
H TO L, CC_CDVCC = 4.5V
H TO L, CC_CDVCC = 5V
L TO H, CC_CDVCC = 3.6V
L TO H, CC_CDVCC = 4.5V
L TO H, CC_CDVCC = 5V
L TO H, CC_CDVCC = 2.7V
H TO L, CC_CDVCC = 3.6V
H TO L, CC_CDVCC = 2.7V
AVCC = 5V
VDRIVE = 3.3V
TA = 25°C
Figure 21. Propagation Delay for Comparator C and Comparator D
vs. Overdrive Voltage for Various Supply Voltages
06732-
036
SUPPLY RIPPLE FREQUENCY (kHz)
P
S
RR
(
d
B)
–120
–115
–110
–105
–100
–95
–90
–85
–80
–75
0
200
400
600
800
1000
–70
VDRIVE = 5V
GAIN = 2
TA = 25°C
INTERNAL REFERENCE
100mV p-p SINE WAVE ON AVCC
AVCC DECOUPLED WITH
10F AND 100nF CAPACITORS
Figure 22. Power Supply Rejection Ratio
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