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參數(shù)資料
| 型號： | LF6197 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 160 ns Monolithic Sample-and-Hold Amplifier |
| 中文描述： | 160納秒單片采樣保持放大器 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 214K |
| 代理商： | LF6197 |
Electrical Characteristics
(Continued)
Unless otherwise specified, the following specifications apply for V
a
e a
15V, V
b
e b
15V,
b
12V
s
V
IN
s
a
12V,
R
L
l
1 k
X
, C
L
s
40 pF, Logic Reference 2 (LR2) voltage
e
0V and Logic Input Voltage
k
1.4V threshold, (Unit is in ‘‘sample’’
mode). V
S
refers to the supply voltages, V
a
and V
b
.
Boldface limits apply for T
A
e
T
J
from T
MIN
to T
MAX
;
all other limits
T
A
e
T
J
e
25
§
C.
Symbol
Parameter
Conditions
Typical
(Note 6)
Limit
(Note 7)
Units
(Limit)
SAMPLE/HOLD CHARACTERISTICS
t
ACQ
Acquisition Time
to 0.1% (Note 10)
to 0.01% (Note 10)
10V step
a
10V step
130
145
ns
240
260
240
260
ns (max)
ns (max)
ns (max)
ns (max)
b
10V step
160
t
AD
Aperture Delay Time
4
ns
t
AJ
Aperture Jitter
8
ps
rms
Droop Rate
0.6
10
m
V/
m
s (max)
V
HS
Hold Step (Note 11)
g
10
mV (max)
t
HMS
Hold Mode Settling Time to 0.01%
10V step
50
ns
Feedthrough Attenuation (Note 12)
f
e
1 kHz, V
IN
e
20 V
p-p
f
e
100 kHz, V
IN
e
20 V
p-p
83
77
80
dB (min)
dB
DYNAMIC CHARACTERISTICS
THD
Total Harmonic Distortion
f
e
10 kHz, V
IN
e
20 V
p-p
f
e
150 kHz, V
IN
e
20 V
p-p
b
83
b
78
dB
dB
FPBW
Full Power Bandwidth (Note 13)
V
IN
e
20 V
p–p
2.3
MHz
Small Signal Bandwidth
25
MHz
DIGITAL LOGIC CHARACTERISTICS
V
IN(1)
Logical ‘‘1’’ Input Voltage
2.0
V (min)
V
IN(0)
Logical ‘‘0’’ Input Voltage
0.8
V (max)
Logic Input Current
6
20
m
A (max)
Logic Reference 2 Input Current
3
5
m
A (max)
Differential Logic Threshold
(Logic Input to LR1)
1.4
1.1
1.6
V(min)
V(max)
POWER SUPPLY CHARACTERISTICS
I
S
a
Positive Supply Current
20
30
mA (max)
I
S
a
Positive Supply Current
V
S
e
g
5V (Note 8)
18.2
27
mA (max)
I
S
b
Negative Supply Current
20
30
mA (max)
I
S
b
Negative Supply Current
V
S
e
g
5V (Note 8)
17.5
27
mA (max)
PSRR
Power Supply Rejection Ratio
V
S
e
g
12V to
g
16V
84
74
dB (min)
3
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