LT1194CN8 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1194CN8 Datasheet PDF : 12 Pages
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LT1194
APPLICATIO S I FOR ATIO
Murphy Circuits
There are several precautions the user should take when
using the LT1194 in order to realize its full capability.
Although the LT1194 can drive a 50pF capacitive load,
isolating the capacitance with 10Ω can be helpful. Precau-
tions primarily have to do with driving large capacitive
loads.
Other precautions include:
1. Use a ground plane (see Design Note 50, High Fre-
quency Amplifier Evaluation Board).
2. Do not use high source impedances. The input capaci-
tance of 2pF, and RS = 10k, for instance, will give an
8MHz – 3dB bandwidth.
3. PC board socket may reduce stability.
Driving Capacitive Load
Driving Capacitive Load
LT1194 IN DEMO BOARD, CL = 50pF
LT1194 • TA12
LT1194 IN DEMO BOARD, CL = 50pF
WITH 10Ω ISOLATING RESISTOR
LT1194 • TA13
5V
3
+7
5
LT1194
2– 4
8
1 –5V
6 COAX
An Unterminated Cable is
a Large Capacitive Load
5V
3
+7
5
LT1194
2– 4
8
1 –5V
6
1X SCOPE
PROBE
LT1194 • TA14
A 1X Scope Probe is a
Large Capacitive Load
10
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