LT1217
Low Power 10MHz
Current Feedback Amplifier
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
1mA Quiescent Current
50mA Output Current (Minimum)
10MHz Bandwidth
500V/碌s Slew Rate
280ns Settling Time to 0.1%
Wide Supply Range,
鹵5V
to
鹵15V
1mV Input Offset Voltage
100nA Input Bias Current
100M鈩?Input Resistance
The LT1217 is a 10MHz current feedback amplifier with DC
characteristics better than many voltage feedback ampli-
fiers. This versatile amplifier is fast, 280ns settling to 0.1%
for a 10V step thanks to its 500V/碌s slew rate. The LT1217
is manufactured on Linear Technology鈥檚 proprietary
complementary bipolar process resulting in a low 1mA
quiescent current. To reduce power dissipation further,
the LT1217 can be turned off, eliminating the load current
and dropping the supply current to 350碌A(chǔ).
The LT1217 is excellent for driving cables and other low
impedance loads thanks to a minimum output drive cur-
rent of 50mA. Operating on any supplies from
鹵5V
to
鹵15V
allows the LT1217 to be used in almost any system. Like
other current feedback amplifiers, the LT1217 has high
gain bandwidth at high gains. The bandwidth is over 1MHz
at a gain of 100.
The LT1217 comes in the industry standard pinout and
can upgrade the performance of many older products.
APPLICATI
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s
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S
Video Amplifiers
Buffers
IF and RF Amplification
Cable Drivers
8, 10, 12-Bit Data Acquisition Systems
TYPICAL APPLICATI
Cable Driver
60
V
IN
Voltage Gain vs Frequency
+
LT1217
AMPLIFIER VOLTAGE GAIN (dB)
75鈩?/div>
50
40
30
20
10
0
鈥?0
R
G
= 30鈩?/div>
R
G
= 100鈩?/div>
R
G
= 330鈩?/div>
R
G
= 1.3k
R
G
=
鈭?/div>
鈥?/div>
R
F
3k
75鈩?/div>
CABLE
V
OUT
R
G
3k
75鈩?/div>
R
A
V
= 1 +
F
R
G
AT AMPLIFIER OUTPUT.
6dB LESS AT V
OUT
.
LT1217 鈥?TA01
鈥?0
100k
U
V
S
=
鹵15V
R
F
= 3k
R
L
= 100鈩?/div>
1M
10M
100M
LT1217 鈥?TA02
UO
UO
FREQUENCY (Hz)
1
LT1217CN8相關(guān)型號(hào)PDF文件下載
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