Datasheet

8
LT1022
1022fa
TYPICAL APPLICATIO S
U
Fast, Differential Input Current Source
LT1022 • TA07
6
10pF
15V
–15V
3
2
7
4
LT1022
+
–
V
IN1
R
L
I
OUT
I
OUT
=
V
IN2
– V
IN1
V
IN2
R*
R*
R*
R*
R
2
I
OUTP-P
• R
L
*MATCH TO 0.01%
FULL-SCALE POWER BANDWIDTH
= 1MHz FOR I
OUT
R = 8V
P-P
= 400kHz FOR I
OUT
R = 20V
P-P
MAXIMUM I
OUT
= 10mA
P-P
COMMON-MODE VOLTAGE AT LT1022 INPUT =
Wide Bandwidth Absolute Value Circuit
LT1022 • TA06
3
2
3
2
7
6
7
6
4
LT1022
+
–
4
LT1022
+
–
10k*
10k*
10k*
10pF 10pF
10k* 10k*
INPUT
±10V
1N4148
1N4148
15V 15V
–15V –15V
OUTPUT
0V TO 10V
*0.1%
1% ACCURACY TO 300kHz
5% ACCURACY TO 700kHz