Ver.3.00
AD12-64(PCI)
6
Analog Input Connection
T
he input form o
f analog signal has a single and input
, and different
ial input
, and t
he connect
ion me
t
hods wit
h a signal d
iffer,
resp
ec
t
ively
. He
re, t
he example in t
h
e case of connect
ing using a f
lat cable o
r a shield cable is shown.
Single-ended Input
It is an example of connect
i
on when us
ing a flat cable.
The source of a signal and a ground a
re connect
e
d t
o 1 t
o 1 t
o each a
nalog input channel o
f CN1.
An al og In p u t 0 ...6 3
An alog Gr ou nd
V
BO ARD
CN 1
Cable
Signal Source
*1
*1 0 ... 15 on t h e AD 12 -1 6 (PCI) b oar d
It is t
he example of conne
ct
ion whic
h used t
he shield ca
ble. When t
he dist
an
ce of t
he source of a signal and a board is long, p
lease
use it t
o enlarge noise-proof nature
. T
o each analog input channel of CN1, wi
re line is connect
ed t
o signal line and t
he group edit
ed
by t
h
e shield i
s connected t
o a ground.
Ana log Gr oun d
Sh iel d ca ble
An al og In p u t 0. ..6 3
BOARD
CN 1
Si gn a l Sou r ce
V
*1
*1 0... 15 on t h e AD 12 -1 6 (PCI) b oar d
Notes!
- Frequency components higher than 1MHz contained in a signal may cause crosstalk across channels.
- When a frequency ingredient 1MHz or more is contained in the source of signal, the cross talk between channels may occur.
- When a board and the source of a signal are influenced of a noise, or when the distance of a board and the source of a signal is
long, it may be unable to input in exact data by the connection method.
- Analog signal to input mus t not exceed the maximum input voltage on the basis of the analog ground of a board. A board may
be damaged when it exceeds.
- Conver sion data is unknown when input terminal is not connected. Please connect with analog ground too hastily the input
terminal of a channel which is not connected to the sour ce of a signal.
Differential input mode
It is an example of connect
i
on when us
ing a flat cable.
[+] input of each analog input channel of CN1 is connect
ed t
o a signal, and [-] input is connect
ed t
o t
he ground o
f t
he sourc
e of a
signal
. Furt
herm
ore, t
he an
alog groun
d of a boa
rd and t
he ground of t
he source of a signa
l are connect
ed.
Ana log In p u t 0[+]. ..31 [+]
An a log Grou n d
BOARD
Cabl e
Sign a l Sour ce
Ana log In p u t 0[-]. ..31 [-]
CN1
V
*2
*2 0 [+]...7 [+] a n d 0 [-]...7 [-] a re r es pect iv ely ap pl icabl e t o AD1 2-16 (PCI ).
It is t
he exampl
e of conne
ct
ion which used 2 h
eart shield cable et
c
. When t
he dist
ance of t
he sou
rce of a s
ignal and a board is long,
p
lease use it t
o enlarge noise-p
roof nat
ure. [
+] input o
f each anal
og input c
hannel of CN1 is connect
ed t
o a signal, and [-] input is
connec
t
ed t
o t
he ground of t
he sourc
e of a signal. Furt
h
ermore, t
he analog gr
ound of a board and t
he ground of t
he so
urce of a signal
are c
onnect
ed i
n t
he group edit
ed by t
he sh
ield.
Analog In
p
u
t 0[+].
..31
[+]
An
alog Grou
n
d
V
BOARD
Signal Source
Analog In
p
u
t 0[-].
..31
[-]
CN1
Shield cable
*2
*2 0 [+].. .7[+] an d 0[-].. .7[-] a re res pect i vely ap p li cab le t o AD 12-1 6(PCI).
Notes!
- When a frequency ingredient 1MHz or more is contained in the source of signal, the cross talk between channels may occur.
- Conver sion data becomes unfixed when analog ground is not connected.
- When a board and the source of a signal are influenced of a noise, or when the distance of a board and the source of a signal is
long, it may be unable to input in exact data by the connection method.
- Analog signal inputted into [+] input and [-] input must not exceed the maximum input voltage on the basis of analog ground of
a board. A boar d may be damaged when it exceeds.
- Conver sion data when having not connected term inal of [+] input or [-] input is unfixed. Both should connect with an analog
ground too hastily the term inal of [+] input of the channel which does not connect with the source of a signal, and [-] input.