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參數(shù)資料
| 型號： | AD8021 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low Noise, High Speed Amplifier for 16-Bit Systems |
| 中文描述： | 低噪聲，高速放大器的16位系統(tǒng) |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 467K |
| 代理商： | AD8021 |
REV. 0
–4–
AD8021
V
S
= 5 V
(@ T
A
= 25 C, R
L
= 1 k , Gain = +2, unless otherwise noted.)
AD8021AR/AD8021ARM
Min
Typ
Parameter
Conditions
Max
Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth
G = +1, C
C
= 10 pF, V
O
= 0.05 V p-p
G = +2, C
C
= 7 pF, V
O
= 0.05 V p-p
G = +5, C
C
= 2 pF, V
O
= 0.05 V p-p
G = +10, C
C
= 0 pF, V
O
= 0.05 V p-p
G = +1, C
C
= 10 pF
G = +2, C
C
= 7 pF
G = +5, C
C
= 2 pF
G = +10, C
C
= 0 pF
V
O
= 1 V Step, R
L
= 500
0 V to 2.5 V Input Step, G = +2
270
155
135
95
80
110
210
290
305
190
165
130
110
140
280
390
28
40
MHz
MHz
MHz
MHz
V/
μ
s
V/
μ
s
V/
μ
s
V/
μ
s
ns
ns
Slew Rate, 1 V Step
Settling Time to 0.01%
Overload Recovery (50%)
DISTORTION/NOISE PERFORMANCE
f = 1 MHz
HD2
HD3
f = 5 MHz
HD2
HD3
Input Voltage Noise
Input Current Noise
V
O
= 2 V p-p
V
O
= 2 V p-p
–84
–91
dBc
dBc
V
O
= 2 V p-p
V
O
= 2 V p-p
f = 50 kHz
f = 50 kHz
–68
–81
2.1
2.1
dBc
dBc
nV/
√
Hz
pA/
√
Hz
2.6
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Bias Current Drift
Input Offset Current
Open-Loop Gain
0.4
0.8
7.5
10
0.1
76
1.0
mV
μ
V/
°
C
μ
A
nA/
°
C
±μ
A
dB
T
MIN
to T
MAX
+Input or –Input
10.3
0.5
72
INPUT CHARACTERISTICS
Input Resistance
Common-Mode Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
10
1
0.9 to 4.6
–98
M
pF
V
dB
1.5 V to 3.5 V
–84
OUTPUT CHARACTERISTICS
Output Voltage Swing
Linear Output Current
Short-Circuit Current
Capacitive Load Drive for 30% Overshoot
1.25 to 3.38
1.10 to 3.60
30
50
10/120
V
mA
mA
pF
V
O
= 50 mV p-p/1 V p-p
DISABLE CHARACTERISTICS
Off Isolation
Turn-On Time
Turn-Off Time
DISABLE
Voltage—Off/On
Enabled Leakage Current
f = 10 MHz
V
O
= 0 V to 1 V, 50% Logic to 50% Output
V
O
= 0 V to 1 V, 50% Logic to 50% Output
V
DISABLE
– V
LOGIC REFERENCE
Logic Ref = 0.4 V
DISABLE
= 4.0 V
Logic Ref = 0.4 V
DISABLE
= 0.4 V
–40
45
50
1.55/1.70
70
2
30
33
dB
ns
ns
V
μ
A
μ
A
μ
A
μ
A
Disabled Leakage Current
POWER SUPPLY
Operating Range
Quiescent Current
±
2.25
±
5
6.7
1.2
–82
–84
±
12.0
7.5
1.5
V
mA
mA
dB
dB
Output Enabled
Output Disabled
V
CC
= 4.5 V to 5.5 V, V
EE
= 0 V
V
CC
= +5 V, V
EE
= –0.5 V to +0.5 V
+Power Supply Rejection Ratio
–Power Supply Rejection Ratio
–74
–76
Specifications subject to change without notice.
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