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參數(shù)資料
| 型號(hào)： | AD9281-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual Channel 8-Bit Resolution CMOS ADC |
| 中文描述： | 雙通道8位分辨率的CMOS模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/19頁 |
| 文件大小： | 406K |
| 代理商： | AD9281-EB |
–2–
REV. E
AD9281–SPECIFICATIONS
Parameter
(AVDD = +3 V, DVDD = +3 V, F
SAMPLE
= 28 MSPS, VREF = 2 V, INB = 0.5 V, T
MIN
to T
MAX
unless otherwise noted)
Symbol
Min
Typ
Max
Units
Condition
RESOLUTION
8
Bits
CONVERSION RATE
F
S
28
MHz
(32 MHz at +25
°
C)
DC ACCURACY
Differential Nonlinearity
Integral Nonlinearity
Differential Nonlinearity (SE)
1
Integral Nonlinearity (SE)
1
Zero-Scale Error, Offset Error
Full-Scale Error, Gain Error
Gain Match
Offset Match
DNL
INL
DNL
INL
E
ZS
E
FS
±
0.1
±
0.25
±
0.2
±
0.3
±
1
±
1.2
±
0.2
±
1.2
LSB
LSB
LSB
LSB
% FS
% FS
LSB
LSB
REFT = 1.0 V, REFB = 0.0 V
±
1.0
±
1.5
±
3.2
±
5.4
REFT = 1.0 V, REFB = 0.0 V
ANALOG INPUT
Input Voltage Range
Input Capacitance
Aperture Delay
Aperture Uncertainty (Jitter)
Aperture Delay Match
Input Bandwidth (–3 dB)
Small Signal (–20 dB)
Full Power (0 dB)
AIN
C
IN
t
AP
t
AJ
–0.5
AVDD/2
2
4
2
2
V
pF
ns
ps
ps
BW
240
245
MHz
MHz
INTERNAL REFERENCE
Output Voltage (1 V Mode)
Output Voltage Tolerance (1 V Mode)
Output Voltage (2 V Mode)
Output Voltage Tolerance (2 V Mode)
Load Regulation (1 V Mode)
Load Regulation (2 V Mode)
VREF
1
±
10
2
±
15
±
10
±
15
V
mV
V
mV
mV
mV
REFSENSE = VREF
VREF
REFSENSE = GND
VREF
±
35
1 mA Load Current
1 mA Load Current
POWER SUPPLY
Operating Voltage
AVDD
DVDD
I
AVDD
I
DVDD
P
D
2.7
2.7
3
3
75
0.1
225
16
0.15
5.5
5.5
V
V
mA
mA
mW
mW
% FS
Supply Current
Power Consumption
Power-Down
Power Supply Rejection
260
STBY = AVDD, Clock Low
PSR
0.75
DYNAMIC PERFORMANCE
2
Signal-to-Noise and Distortion
f = 3.58 MHz
f = 14 MHz
Signal-to-Noise
f = 3.58 MHz
f = 14 MHz
Total Harmonic Distortion
f = 3.58 MHz
f = 14 MHz
Spurious Free Dynamic Range
f = 3.58 MHz
f = 14 MHz
Two-Tone Intermodulation Distortion
3
Differential Phase
Differential Gain
Crosstalk Rejection
SINAD
46.4
49.1
48
dB
dB
SNR
47.8
49.2
48.5
dB
dB
THD
–67.5
–60
–49.5
dB
dB
SFDR
49.6
65
56
–58
0.2
0.08
–62
dB
dB
dB
Degree
%
dB
IMD
DP
DG
f = 44.9 MHz and 45.52 MHz
NTSC 40 IRE Mod Ramp
F
S
= 14.3 MHz
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