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LT1179 データシートの表示(PDF) - Linear Technology

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LT1179 Datasheet PDF : 12 Pages
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LT1178/LT1179
APPLICATIO S I FOR ATIO
Please see the LT1078/LT1079 data sheet for applications supply operation and phase reversal protection are
information. All comments relating to specifications, single directly applicable to the LT1178/LT1179.
Micropower 100Hz to 1MHz V-to-F Converter
VIN
0V TO 5V
1.5M
220k*
50k
1MHz
TRIM
100Hz
TRIM
240k
TYPICAL
2k
+
A1
1/2 LT1178
47k
0.01µF
12k
Q8
2N3906
1N4148
NC
+
1µF
Q7
2N3904
VDD
CLK CD4024 Q7
100
+
1µF
A2
1/2 LT1178
7V TO 10V
100k
10k
LT1004– 2.5
0.33µF
74C14
3pF 10M
RESET
VSS
FOUT
2µF
LTC201
S1
500pF
POLYSTYRENE
D1
D2
0.022µF
S2
IN1
V+
S3
IN3
D3
D4
IN4
S4
V
IN2
GND
LINEARITY IS 0.02%
QUIESCENT CURRENT IS 90µA
SUPPLY CURRENT IS 360µA AT 1MHz
DRIFT 50ppm/°C
*TRW MTR/5 + 120ppm/°C
LT1178/LT1179 • AI01
W
W
SI PLIFIED SCHE ATIC
1/2 LT1178
1/4 LT1179
V+
10k 10k
2.2k
5.6k
1.3k
6.4k
Q5
Q6
Q16
Q14
Q15
Q32
600
IN
+ IN 600
Q11
Q1
Q21
Q2
Q22
Q3
Q24 Q29
Q4
C1
50pF
Q12
4
1
Q27
8.6k
C5
2.5pF
Q37
Q30
1
3
Q25
3k
C4
4pF
2.9k Q26
Q28
V+
Q39
Q31
C3
Q18 40pF
Q19
Q9
C2 Q7
175pF
6.2k
Q10 Q17
Q8
6.2k
Q23
Q20
2A
Q34
3k
33k
11.5k
Q54
Q53
1
2
1
Q47
Q46
V
12.5k
Q52
Q40
Q35
Q41
V+
30
Q44
OUT 150k
Q36
Q33
Q48
Q50 Q42
J1
Q49
V+
9.1k
Q45 Q51
10k
Q38
2A
Q55
Q43
A
30
5.35k
700k
700k
V
11789fb
9

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