LTC1043C View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1043C Datasheet PDF : 16 Pages
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LTC1043
TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4)
Oscillator Frequency, fOSC
vs Ambient Temperature, TA
350
325 COSC = 0pF
300
275
250
225
200
175
V+ = 10V, V– = 0V
150
V+ = 5V, V– = 0V
125
V+ = 15V, V– = 0V
100
–50 –25 0 25 50
75 100 125
AMBIENT TEMPERATURE (°C)
LTC1043 • 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
4
S1A
S2A
7
8
SHA 10
11 CA+
12 CA–
S3A
S4A
13
14
CHARGE
BALANCING
S1B
CIRCUITRY
S2B
6
5
SHB 1
2 CB+
3 CB–
S3B
S4B
18
15
CHARGE
BALANCING
CIRCUITRY
V+
V–
COSC
16
NON-OVERLAPPING
CLOCK
OSCILLATOR
THE CHARGE BALANCING CIRCUITRY SAMPLES THE VOLTAGE
V+ AT S3 WITH RESPECT TO S4 (PIN 16 HIGH) AND INJECTS A
4 SMALL CHARGE AT THE C+ PIN (PIN 16 LOW).
THIS BOOSTS THE CMRR WHEN THE LTC1043 IS USED AS AN
INSTRUMENTATION AMPLIFIER FRONT END.
V– FOR MINIMUM CHARGE INJECTION IN OTHER TYPES OF
17 APPLICATIONS, S3A AND S3B SHOULD BE GROUNDED
THE SWITCHES ARE TIMED AS SHOWN WITH PIN 16 HIGH
LTC1043 • BD01
1043fa
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