Datasheet

LTC1052/LTC7652
13
1052fa
TYPICAL APPLICATIO S
U
Offset Stabilized Comparator
1HZ to 1.25MHz Voltage-to-Frequency Converter (5V Supply)
LTC1052/7652 • TA05
1M
–
5V
LTC1043
COMPARATOR
INPUTS
5V
STATUS OUTPUT
OV = ZERO
5V = COMPARE
4
5
16
3
2
8
11
–5V
14 13
7
+
GROUND OR
INPUT COMMON-
MODE VOLTAGE
5V
6
15 18
+
–
LTC1052
ZERO COMMAND
5V = ZERO
–5V=COMPARE
+
–
LT1011
2
3
4
5
1
6
7
8
6
COMPARATOR
OUTPUT (± 5V)
10k
–5V
7
2
150Ω330Ω
2k
–5V
8
4
5V
1µF
1
3
0.1µF
0.1µF
12
17
V
IN
OV TO 5V
TRW MTR–5/ +1200ppm/°C
POLYSTYRENE–WESCO #32–P/ – 120ppm/°C
*
**
LINEARITY
DYNAMIC RANGE
ZERO POINT DRIFT
GAIN DRIFT
±0.05%
>120dB
0.01Hz/°C
20ppm/°C
0.22µF
5V
LTC1043
12
+
–
LTC1052
6
7
2
8
4
5V
1
3
0.1µF 0.1µF
11
4
8
5V
5V
10k
74C04
7
NC
0.01µF
OUTPUT
1H to 1.25MHz
3.3pF
10k
100pF**
1/2
16
17
14 13
2k
LT1004-1.2V
10k
FULL-SCALE TRIM
(1.25MHz)
30.1k*
3.3k
10k
470Ω
330pF
Q1
2N2907
470Ω
LTC1052/7652 • TA06
2N3904
0.01µF
0.1µF