Internal Block Diagram - Toshiba AD268 User Manual

PART 2 DA264

2.2 Internal block diagram

LED
T2 CPU
The DA264 performs the following operations.
The digital data for D/A conversion generated by the T2 program are written into the DA264.
The written digital data are transferred to the D/A converter through optical isolator. Then the
D/A converter converts the digital values to the analog signals.
The generated analog signals are output to each channel (CH1 to CH4) via amplifier. Each
channel has both the voltage output and the current output. However either voltage or current
output can be used.
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Amplifier
Amplifier
(V I)
Amplifier Buffer
Amplifier
(V I)
Reference
voltage
+5V
Regulator
+15V
AG
-15V
Voltage
check
circuit
2. Specifications
Buffer
P
(V V)
N
P
TR
N
P
(V V)
N
TR P
N
P24
COM
LG
FG
User's Manual
Voltage
output
CH1
Current
output
Voltage
output
CH4
Current
output
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