LT1010_06 Datasheet, PDF (14/20 Pages) Linear Technology – Fast ±150mA Power Buffer

LT1010
APPLICATIO S I FOR ATIO
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 cur-
rents, another package should be used.
Gain-Trimmable Wideband FET Amplifier
15V
10pF
1k
470Ω
INPUT
0.01µF
Q1
2N5486
Q2
2N3904
Q3
2N3906
A
A2
LT1010
B
OUTPUT
1k
1k
GAIN
ADJ
10M
10k 2k 300Ω 50Ω 5.6k 3k
10M
–15V
A1
LT1012
0.002µF
0.1µF
0.1µF
1k
15V
3k
2N3904
3Ω
A
B
3Ω
2N3906
3k
–15V
1010 AI19
(A)
(B)
A = 0.2V/DIV
B = 0.2V/DIV
10ns/DIV
1010 AI20
Figure A. Waveforms Using LT1010
14
A = 0.2V/DIV
B = 0.2V/DIV
10ns/DIV
1010 AI21
Figure B. Waveforms Using Discrete Stage
1010fc