Datasheet

LT1010
14
1010fe
APPLICATIONS INFORMATION
Figures A and B show response with both output stages.
The LT1010 is used in Figure A (Trace A = input, Trace B
= output). Figure B uses the discrete stage and is slightly
faster. Either stage provides more than adequate perfor-
mance for driving video cable or data converters and the
LT1012 maintains DC stability under all conditions.
Thermal Considerations for the MiniDIP Package
The miniDIP package requires special thermal consider-
ations since it is not designed to dissipate much power. Be
aware that for applications requiring large output currents,
another package should be used.
Gain-Trimmable Wideband FET Amplifier
–
+
A1
LT1012
A2
LT1010
Q3
2N3906
470Ω
10pF
OUTPUT
1k
50Ω300Ω2k10k10M
INPUT
5.6k
–15V
(A) (B)
3k
3k
3k
–15V
15V
3Ω
3Ω
BA
2N3904
2N3906
10M
1k
15V
Q2
2N3904
Q1
2N5486
1k
GAIN
ADJ
A B
0.002µF
0.1µF
0.1µF
1k
1010 AI19
0.01µF
A = 0.2V/DIV
B = 0.2V/DIV
10ns/DIV
1010 AI20
A = 0.2V/DIV
B = 0.2V/DIV
10ns/DIV
1010 AI21
Figure A. Waveforms Using LT1010 Figure B. Waveforms Using Discrete Stage