U PCI Bus

U 12-Bit 330 KHz

A/D Converter

U OME-PCI-1800H,

OME-PCI-1800L:

16 Single-Ended/

8 Differential Inputs,

2K Word FIFO

U OME-PCI-1802H,

OME-PCI-1802L:

32 Single-Ended/16

Differential Inputs,

8K Word FIFO

U 330 KSamples/s for

Single Channel or

Multiple Channels

U Trigger Methods:

Software Trigger, Pacer

Trigger, External Trigger

U External Triggers:

Post-Trigger, Pre-Trigger,

External Pacer Trigger

U OME-PCI-1800L,

OME-PCI-1802L

Programmable Low-Gain:

0.5, 1, 2, 4, 8

U 16 Digital Input and 16

Digital Output Channels

U OME-PCI-1800H,

OME-PCI-1802H

Programmable High-

Gain: 0.5, 1, 5, 10, 50,

100, 500, 1000

U Two Optional

12-Bit Independent

Programmable DACs;

2 MHz Throughput per

Channel (Max)

U 2.7M Word/High-Speed

Data Transfer Rate

U Includes Software

Development Kit

U Half-Size Board

OME-PCI-1800H

shown smaller than

actual size.

OME-PCI-1800H/L and

OME-PCI-1802H/L Series

High-Performance Analog and Digital I/O Boards

The OME-PCI-1800 Series is a

family of high-performance data

acquisition boards for the PCI bus.

It features continuous, 330 kHz,

gap-free data acquisition under

DOS and Windows.

The OME-PCI-1800 family has

two 12-bit D/A output channels, 16

digital input channels, and 16 digital

output channels.

The OME-PCI-1800H and OME-

PCI-1800L provide 16 single-ended

or 8 differential inputs. The OME-

PCI-1802H and OME-PCI-1802L

provide 32 single-ended or 16

differential inputs. The suffix “H”

denotes a high-gain model and the

“L” denotes a low-gain model. The

boards feature advanced scanning

features. The scanning mechanism

not only scans the different input

channels at vastly different rates,

but also at different gains. Even

in multichannel scan mode, the

sampling rates can be maintained at

330 KS/s.

The OME-PCI-1800 Series also

has some outstanding features,

including:

•

Data transfer rate of digital I/O is

up to 5.4 MB

•

Throughput of D/A is up to 2 MHz

(maximum)

•

Three flexible external trigger

modes such as post-trigger, pre-

trigger, middle trigger

•

True “plug & play” under DOS and

Windows

•

On-board FIFO

OME-PCI-1800 Series

System Expansion

Several daughter boards are available

that can expand the analog and

digital I/O capability

of the OME-PCI-1800 Series

high-performance data acquisition

boards. These include:

OME-DB-1825, OME-DB-8225, OME-

DB-8025, OME-DB-889D, OME-DB-

16P, OME-DB-16R.

OME-DB-889D 16-Channel

Analog Multiplexer Board

The OME DB-889D is an expansion

multiplexer/amplifier board for use

with OME-PCI-1800H/L boards. Each

OME-DB-889D multiplexes

16 differential analog input channels

into one analog input of the data

acquisition board. The high-grade

instrumentation amplifier provides

software programmable gains of 0.5,

1, 5, 10, 50, 100, 500, and 1000.

Thermocouple measurements are

handled easily with the OME-DB-889D.

The board includes cold-junction

sensing and compensation circuitry

that provides a scaling of 24.4 mV/°C.

Biasing resistors are included for

open thermocouple detection. The

OME-DB-889D can be cascaded to

a total of 128 channels of voltage

measurements or 112 channels of

thermocouple measurement.

OME-DB-16P 16-Channel

Isolated Digital Input Board

The OME-DB-16P is a 16-channel

isolated digital input daughter board

for any of the OME-PCI-

1802H/1802L/1800H/1800L/1602/

1602F/1202H/1202L/1002H/1002L

PCI-bus multifunction boards.

OM-PCI-1800L and 1802L Analog Input Ranges

Gains Bipolar (V) Unipolar (V) Throughput

0.5 ±10 V 0 to 10 V 330 KS/s

1 ±5 V 0 to 10 V 330 KS/s

2 ±2.5 V 0 to 5 V 330 KS/s

4 ±1.25 V 0 to 2.5 V 330 KS/s

8 ±0.625 V 0 to 1.25 V 330 KS/s

OME-DB-16P shown smaller than actual size.

OME-DB-16R shown smaller than actual size.

OM-PCI-1800H and 1802H Analog Input Ranges

Gains Bipolar (V) Unipolar (V) Throughput

0.5 ±10V 0 to 10 V 40 KS/s

1 ±5V 0 to 10 V 40 KS/s

5 ±1V 0 to 1 V 40 KS/s

10 ±0.5V 0 to 1 V 40 KS/s

50 ±0.1V 0 to 0.1 V 10 KS/s

100 ±0.05V 0 to 0.1 V 10 KS/s

500 ±0.01V 0 to 0.01 V 1 KS/s

1000 ±0.005V 0 to 0.01 V 1 KS/s

Specifications

ANALOG INPUT SPECIFICATIONS

Input Channels:

OME-PCI-1802H/L, 32 SE/16 Diff

OME-PCI-1800H/L, 16 SE/8 Diff

Resolution: 12 bits

Conversion Rate: 330 KS/s

Input Impedance:

10,000 MΩ/6 pf

Overvoltage Protection:

±35 V

Accuracy:

0.01% of reading, ±1 bit

On Board FIFO:

OME-PCI-1800 H/L: 2K

OME-PCI-1802 H/L: 8K

The optically isolated inputs of the

OME-DB-16P consist of a

bi-directional OPTO-coupler with

a resistor for current sensing. The

OME-DB-16P can be used to sense

DC signals from TTL levels up to

24 V and also a wide range of

AC signals. The OME-DB-16P

can also be used to isolate the

computer from large common-mode

voltages, ground loops and voltage

spikes that often occur in industrial

environments.

OME-DB-16R 16-Channel

Relay Output Board

The OME-DB-16R 16-channel relay

output board consists of 16 Form C

relays for efficient switching of loads

by programmed control.

The OME-DB-16R can be used with

any of the OME-PCI-1802H/1802L/

1800H/1800L/1602/1602F/1202H/

1202L/1002H/1002L PCI-bus

multifunction boards. The relays are

energized by applying a 5 V signal

to the appropriate relay channel

on the 20-pin flat cable connector.

Sixteen annunciator LEDs, one for

each relay, light when their associated

relay is activated. To avoid

overloading the PC’s power supply,

this board provides a screw terminal

connection for a power supply.

Software

Development Kit

All data acquisition boards are

supplied with a standard software

development kit for Windows

98/NT/2000/XP. The software

development kit includes DLL files

for programming in C, C++, or other

high-level languages, and OCX

files for Visual Basic or Active X

programming. LabVIEW drivers are

also included.