mb40568pf Fujitsu Microelectronics, Inc., mb40568pf Datasheet - Page 12

• Manufacturer Part Number: mb40568pf
• Description: A/d Converter 1-channel, 8-bit Low-power Model With Built-in Clamp Circuit
• Manufacturer: Fujitsu Microelectronics, Inc.

12
MB40568
1. Analog Input Equivalent Circuit
2. Equivalent Circuit of Clamp Circuit Block
EQUIVALENT CIRCUIT
V
V
CCA
INA
C
R
V
I
V
BIAS
RB
D
INA
INA
: Non-linear Emitter-Follower Junction Capacitance
: Linear Resistance Model for Input Current Transition by Comparator Switching
: Voltage at V
: Constant Input Bias Current
: The base-collector junction diode of emitter-follower transistor
Infinite value for V
255 CIRCUITS
A.GND
V
V
CCA
INC
RB
terminal.
INA
V
OUTC
< V
A.GND
RB
or when CLK + High
2 mA
–
C
CLMP
+
V
CLMP
850 k
V
V
CCA
INA
0.6
V
C
CC
INA
+ 200 mV + V
BE
A.GND
I
BIAS
R
V
V
D
INA
RB