Advantech PCI-1720U Bedienungsanleitung PDF herunterladen (Seite 18)

Features

6-18

Plug-in DA&C Cards

All product specifications are subject to change without notice Last updated : January 2005

PCI-1718HDU

PCI-1718HGU

Speciﬁcations

Analog Input

 Channels 16 single-ended or 8 differential or combination

 Resolution 12-bit

 FIFO Size 4 K samples

 Max. Sampling Rate 100 kS/s

Input range and

Gain List for

PCI-1718HDU/

HGU

Gain 0.5 1 2 4 8

Unipolar N/A 0~10 0~5 0~2.5 0~1.25

Bipolar ±10 ±5 ±2.5 ±1.25 ±0.625

Input range and

Gain List for

PCI-1718HDU/

HGU

Gain 0.5 1 5 10 50 100 500 1000

Unipolar N/A 0~10 N/A 0~1 N/A 0~0.1 N/A 0~0.01

Bipolar ±10 ±5 ±1 ±0.5 ±0.1 ±0.05 ±0.01 ±0.005

PCI-1718HDU/

HGU PGA

Bandwidth

Gain 0.5, 1 2 4 8

Bandwidth 5.0 MHz 4.0 MHz 1.3 MHz 0.6 MHz

12-bit Multi-function Card with PCI BUS

12-bit High-gain Multi-function card

with PCI BUS (ISA Compatible)

Introduction

PCI-1718HDU/HGU is a multifunction data acquisition card based on the PCI bus. It offers the ﬁve most desired measurement and control functions: 12-bit A/D conversion, 12-bit

D/A conversion, digital input, digital output, and counter/timer.

PCI-Bus Plug & Play

The PCI-1718HDU/HGU uses a PCI controller to interface the card to the PCI bus. The controller fully implements the PCI bus speciﬁcation Rev 2.2. All bus relative conﬁgurations,

such as base address and interrupt assignment, are automatically controlled by software. No jumper or DIP switch is required for user conﬁguration.

Automatic Channel/Gain/ SD Scanning

PCI-1718HDU/HGU features an automatic channel/Gain/SD scanning circuit. This circuit, instead of your software, controls multiplexer switching during sampling. On-board SRAM

stores different gain and SD values for each channel. This combination lets user perform multi-channel high-speed sampling (up to 100kHz) with different gains and SD for each

channel.

On-board FIFO

There are 4k samples FIFO for A/D (AI) on PCI-1718HDU/1718HGU. This is an important feature for faster data transfer and more predictable performance under Windows system.

On Board Programmable Timer/Counter

PCI-1718HDU/1718HGU provides a programmable timer counter for generating pacer trigger for the A/D conversion. The timer/counter chip is 82C54, which includes three 16-bit

counters of 10 MHz clock. One counter is used as an event counter for counting events coming from the input channel. The other two are cascaded together to make a 32-bit timer

for pacer trigger time base.

 16 single-ended or 8 differential analog inputs

 12-bit A/D converter

 Programmable gain for each input channel

 Automatic channel/gain/SD scanning

 On-board FIFO for AI

 One 12-bit analog output channel

 16 digital inputs and 16 digital outputs

 PCI-bus mastering for data transfer

 Universal PCI bus (support 3.3 V or 5 V PCI bus signal)

 BoardID™ switch

NEW

PCI-1718HDU/

HGU PGA

Bandwidth

Gain 0.5, 1 5, 10 50, 100 500, 1000

Bandwidth 1.0 MHz 80 kHz 10 kHz 1 kHz

Drift

Zero (µV/.) 15

Gain (ppm/.) 40

 Common Mode Voltage ±11 V max. (operational)

 Max. Input voltage ±15 V

 Input Protection 30 Vp-p

 Input Impedance 100 MΩ/10pF(Off); 100 MΩ/100pF(On)

 Trigger Mode Software, on-board or external programmable pacer

PCI-1718HDU/HGU

Accuracy

DNLE: ±1LSB

INLE: ±1LSB

Offset error: Adjustable to 0

Gain 0.5 1 2 4 8

Gain error(% FSR) 0.01 0.01 0.02 0.02 0.04

THD: -80 dB

ENOB: 11 bits

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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