User`s guide

16 •• Operation Theorem
Digital Value HEX value Output Voltage
32767 0x7FFF +9.99969V
16384 0x4000 +5.00000V
8192 0x2000 +2.50000V
1 0x0001 0.00031V
0 0x0000 0.00000V
-1 0xFFFF -0.00031V
-8192 0xE000 -2.50000V
-16384 0xC000 -5.00000V
-32767 0x8001 -9.99969V
-32768 0x8000 -10.00000V
4.2 Current Output and Range Control
The current output is implemented by the precision voltage-to-current
converter XTR110. The current output channel n (An) is control by the
voltage of channel n (Vn). The block diagram of the current output
channels is shown in Fig 3.1.
XTR110
50 Ohm
On Board +15V
Vn
An
External Load
(Resister R
L
= 250 Ohm typical)
A.GND
Io
Current Output
Range Control
Fig 3.1