Datasheet

LTC1043
9
1043fa
Divide by 4 0.005% V/F Converter
0.01% Analog Multiplier
LTC1043 • A07
0.01µF
0 ≤
V
IN
≤ V
+
V
OUT
= V
IN
/4 ±5ppm
12
11
V
OUT
V
IN
1µF1µF
LTC1043
14
17
3
2
1µF1µF
5
15
6
7
16
13
8
18
LTC1043 • A08
–5V
–5V
30pF
22k 330k
1µF
Q1
2N2907A
5V
5V
–5V
LT1009
2.5k
1µF
1k
f
OUT
: 0kHz TO 30kHz
78
13
V
IN
0V TO 3V
1µF
0.01µF
1/2 LTC1043
164 12
11
14
17
–
+
6.19k
GAIN
2.5k
LF356
LTC1043 • A09
0.001µF
1µF
1k
LT1004-1.2V
2N2907A
(FOR START-UP)
5V
X
INPUT
OPERATE LTC1043 FROM ±5V
POLYSTYRENE, MOUNT CLOSE
1% FILM RESISTOR
ADJUST OUTPUT TRIM
SO X • Y = OUTPUT ±0.01%
Y
INPUT
1µF
1µF
2
3
4
6
7
1/4 LTC1043
12
14
5V
0.01µF
–5V
2
3
4
7
6
–
+
LT1056
–5V
–5V
–5V
30pF
22k
330k
–
+
LT1056
13
0.001µF
1/4 LTC1043
2
16
56
7.5k*
80.6k*
20k
OUTPUT
TRIM
OUTPUT
XY ±0.01%
†
†
†
*
TYPICAL APPLICATIO S
U
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