Analog input signal overview, Analog input signal overview -6 – National Instruments NI 6014 User Manual
Page 32
Chapter 4
Connecting Signals
4-6
ni.com
Analog Input Signal Overview
The AI signals for the NI 6013/6014 are ACH<0..15>, AISENSE, and
AIGND. Connection of these AI signals to the device depends on the type
of input signal source and the configuration of the AI channels you are
using. This section provides an overview of the different types of signal
sources and AI configuration modes. More specific signal connection
information is provided in the
Connecting Analog Input Signals
section.
DIO<0..7>
DIO
—
V
CC
+0.5
10 at (V
CC
–0.4)
24 at
0.4
1.1
1.5 k
Ω pd
SCANCLK
DO
—
—
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
EXTSTROBE*
DO
—
—
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI0/TRIG1
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI1/TRIG2
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI2/CONVERT*
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI3/GPCTR1_SOURCE
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI4/GPCTR1_GATE
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
GPCTR1_OUT
DO
—
—
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI5/UPDATE*
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI6/WFTRIG
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI7/STARTSCAN
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI8/GPCTR0_SOURCE
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI9/GPCTR0_GATE
DIO
—
V
CC
+0.5
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
GPCTR0_OUT
DO
—
—
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
FREQ_OUT
DO
—
—
3.5 at (V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω pu
pd = pull down
pu = pull up
DO = Digital Output
The tolerance on the 50 k
Ω pull-up resistors is very large. Actual value may range between 17 and 100 kΩ.
Table 4-3. I/O Signal Summary for the NI 6013/6014 (Continued)
Signal Name
Signal
Type and
Direction
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mA at V)
Sink
(mA
at V)
Rise
Time
(ns)
Bias