Measurement DBK12 User Manual

DBK12 and DBK13 16-Channel Analog Input Multiplexer Cards

DBK12 – Low Gain Programmable Card
DBK13 – High Gain Programmable Card

Overview …… 1
Hardware Setup …… 2

Card Connection …… 3
Card Configuration …… 3
DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration …… 4
DaqBook/2000 Series and DaqBoard/2000 Series Configuration …… 4

Software Setup …… 4
DBK12 – Specifications …… 5
DBK13 – Specifications …… 5

Reference Notes:

o Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your

system, as needed.

o In regard to calculating system power requirements, refer to DBK Basics located near

the front of this manual.

Overview

DBK12

DBK13

Both the DBK12 and DBK13 provide 16 single-ended, or 16 differential, analog inputs.

The DBK12 ’s amplifier offers ×1, 2, 4, or 8 gain (programmable per channel). These gains can be
combined with:

LogBook: the standard LogBook gains of 1, 2, 4, 8, 16, 32, and 64 to yield gains of 1, 2, 4, 8, 16,
32, 64, 128, 256, and 512.

Daq devices: the standard Daq device gains of 1, 2, 4, or 8 to yield gains of 1, 2, 4, 8, 16, 32, and

64.

The DBK amplifier offers ×1, 10, 100, or 1000 gain (programmable per channel). These gains can be
combined with:

LogBook: the standard LogBook gains of 1, 2, 4, 8, 16, 32, and 64 to yield gains of 1, 2, 4, 8, 10,
16, 20, 32, 40, 64, 80, 100, 160, 200, 320, 400, 640, 800, and 1000.

Daq devices: the standard Daq device gains of 1, 2, 4, or 8 for net gains of 1, 2, 4, 8, 10, 20, 40, 80,
100, 200, 400, 800, 1000.

DBK Option Cards and Modules 879895 DBK12 and DBK13, pg. 1

Up to 16 such cards can be attached to one of the 16 base channels for 256 single-ended or differential
inputs. The scan sequencer can directly program the expansion cards to scan external signals at the same
10 µs/channel rate as on-board channels.

Note: DBK12 and DBK13 use the same printed circuit board and look quite similar. If the label becomes

unreadable, you can distinguish them as follows: the U6 integrated circuit is a PGA203 in DBK12;
but a PGA202 in DBK13.

Hardware Setup

To set up the card, you may need to refer to the following board layout. The layout can be used for both
DBK12 and DBK13.

DBK12 and DBK13 Block Diagram

DBK12 and DBK13, pg. 2 879895 DBK Option Cards and Modules