LTC6943IGN 데이터 시트보기 (PDF) - Linear Technology
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LTC6943IGN
Linear Technology
LTC6943IGN Datasheet PDF : 16 Pages
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LTC6943
TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4)
Oscillator Frequency, fOSC
vs Ambient Temperature
350
COSC = 0pF
300
VS = 5V
250
200 VS = 10V
150 VS = 15V
100
50
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
6943 TPC10
COSC Pin ISINK, ISOURCE
vs Supply Voltage
100
ISINK, TA = –55°C
75
ISINK, TA = 25°C
ISOURCE, TA = –55°C
50
ISOURCE, TA = 25°C
25
ISINK, TA = 125°C
ISOURCE, TA = 125°C
0
0 2 4 6 8 10 12 14 16 18
LTC1043 • TPC11
Break-Before-Make Time, tNOV,
vs Supply Voltage
80
TA = 25°C
70
60
50
40
30
20
10
0 2 4 6 8 10 12 14 16 18 20
VSUPPLY (V)
LTC1043 • TPC12
BLOCK DIAGRA
S1A 6
SHA 8
9 CA+
10 CA–
7 S2A
4
S3A 11
S1B 5
CHARGE
BALANCING
CIRCUITRY
12 S4A
4 S2B
S3B 16
1 CB+
2 CB–
CHARGE
BALANCING
CIRCUITRY
13 S4B
V+
COSC 14
V–
NON-OVERLAPPING
CLOCK
OSCILLATOR
3 V+
15 V–
THE CHARGE BALANCING CIRCUITRY SAMPLES THE VOLTAGE
AT S3 WITH RESPECT TO S4 (PIN 14 HIGH) AND INJECTS A
SMALL CHARGE AT THE C+ PIN (PIN 14 LOW).
THIS BOOSTS THE CMRR WHEN THE LTC6943 IS USED AS AN
INSTRUMENTATION AMPLIFIER FRONT END.
FOR MINIMUM CHARGE INJECTION IN OTHER TYPES OF
APPLICATIONS, S3A AND S3B SHOULD BE GROUNDED
THE SWITCHES ARE TIMED AS SHOWN WITH PIN 14 HIGH
6943 • BD01
6943f
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