AS1743G-T 查看數據表（PDF） - austriamicrosystems AG
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AS1743G-T
austriamicrosystems AG
AS1743G-T Datasheet PDF : 15 Pages
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AS1741, AS1742, AS1743
Data Sheet
austriamicrosystems
Timing Diagrams and Test Setups
Figure 14. AS1743 Test Circuit and Timing Diagram
VS
NC2
NO1
V+
V+
AS1743
COM1
INx
50Ω
COM2
GND
VS
50Ω
VCOMx
35pF
Figure 15. Charge Injection
NCx
V+
or
V+
NOx
AS174x
INx
COMx
VIN
50Ω
GND
RGEN
VGEN
VOUT
CLOAD
1000pF
VIH + 0.5V
INx
0
VS
VCOMx
0
90%
90%
tR < 5ns
tF < 5ns
tBBM
tBBM
tBBM = tON(NOx) - tOFF(NCx)
or tBBM = tON(NCx) - tOFF(NOx)
V+
VIN
0
AS1741
AS1742
VOUT
∆VOUT
∆VOUT is the measured voltage due to charge transfer error Q
when the channel turns off.
Q = ∆VOUT x CLOAD
Figure 16. NOx, NCx, and COMx Capacitance
AS1741/
AS1742/
AS1743
V+
V+
COMx
As
Required INx
GND
NCx or
NOx
1MHz
Capacitance
Analyzer
www.austriamicrosystems.com
Revision 1.76
10 - 15
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