MCC USB-1808X: High-Speed, High-Precision, Simultaneous USB DAQ Device - Datasheet

ManualsBrandsDigilent ManualsIO Expansion & ADCsMCC USB-1808X High-Speed, High-Precision, Simultaneous USB DAQ Device

Measurement Computing (508) 946-5100

info@mccdaq.com mccdaq.com

USB-1808 Series

Measurement Computing (508) 946-5100

info@mccdaq.com mccdaq.com

USB-1808 Series

Analog Input

USB-1808 Series devices provide eight,

18-bit simultaneous-sampling analog

inputs that are software-selectable per

channel for DIFF or SE mode.

USB-1808X models support sample

rates up to 200 kS/s per channel, while

USB-1808 models support sample rates

up to 50 kS/s per channel. All devices

support voltage ranges of ±10 V, ±5 V,

0 V to 10 V, and 0 V to 5 V.

Channel-Gain Queue

Use the channel-gain queue feature to

conﬁgure a list of channels and gains

for each scan. Each channel can have a

different gain setting, and the settings

are stored in a list that is written to local

memory on the device.

The channel-gain queue list on

USB-1808 Series devices can contain up

to eight unique channels that must be

listed in increasing order.

USB-1808 Series devices provide eight simultaneously-sampling analog inputs that are con-

ﬁgurable per channel as differential or single-ended, two analog outputs, four digital I/O, two

general-purpose counters, two quadrature encoders, and two timer outputs.

USB-1808 Series Selection Chart

Model Analog

Inputs

Sample Rate

(max/channel)

Analog

Outputs

Update Rate

(max/channel)

Digital

I/O

Counter

Inputs

Encoder

Inputs

Timer

Outputs

Signal I/O

USB-1808 8 DIFF/8 SE 50 kS/s 2 125 kS/s 4 2 2 2 Screw Terminal

USB-1808X 8 DIFF/8 SE 200 kS/s 2 500 kS/s 4 2 2 2 Screw Terminal

USB-1808-OEM 8 DIFF/8 SE 50 kS/s 2 125 kS/s 4 2 2 2 Header

USB-1808X-OEM 8 DIFF/8 SE 200 kS/s 2 500 kS/s 4 2 2 2 Header

High-Speed, High-Precision, Simultaneous USB Devices

Features

• Eight 18-bit differential

(DIFF) or single-ended (SE)

analog inputs

• Simultaneous sampling (up to

200 kS/s per channel)

• Two analog outputs

• Four digital I/O

• Two general-purpose counters

and two quadrature encoders

• Two timer outputs

• Synchronous AI, AO, DIO

operations (up to 200 kS/s per

channel

• External clock I/O, external

digital triggering, and pattern

triggering

• Board-only OEM available

Supported Operating Systems

• Windows

10/8/7/Vista

/XP

32/64-bit

• Linux

Overview

USB-1808 Series devices are high-performance, simultaneous-sampling DAQ

devices. All devices provide synchronous and concurrent voltage I/O, waveform

output, counter input, quadrature encoder input, timer output, and digital I/O.

USB-1808X models offer synchronous I/O operations at rates up to 200 kS/s per

channel, while USB-1808 models offer the same features at rates up to 50 kS/s

per channel.

Analog Output

USB-1808 Series devices offer two 16-bit

analog outputs. USB-1808X models can be

updated at a rate of 500 kS/s per channel,

while USB-1808 models can be updated

at a rate of 125 kS/s. The output range is

ﬁxed at ±10 V.

Digital I/O

Four digital I/O lines are individually

conﬁgurable for input or output. The

DIO terminals can detect the state of any

TTL-level input. Users can conﬁgure for

pull-up (+5 V) or pull-down (0 V) with an

onboard jumper.

Summary of content (6 pages)

PAGE 1
USB-1808 Series High-Speed, High-Precision, Simultaneous USB Devices Features • Eight 18-bit differential (DIFF) or single-ended (SE) analog inputs • Simultaneous sampling (up to 200 kS/s per channel) • Two analog outputs • Four digital I/O • Two general-purpose counters and two quadrature encoders • Two timer outputs • Synchronous AI, AO, DIO operations (up to 200 kS/s per channel USB-1808 Series devices provide eight simultaneously-sampling analog inputs that are configurable per channel as differential
PAGE 2
USB-1808 Series Features Counter Input Each analog channel can have a different gain, and digital, counter, and encoder channels do not need additional scanning bandwidth as long as there is at least one analog channel in the scan group. USB-1808 Series devices have two 32-bit general-purpose counter inputs that can be read asynchronously under program control, or synchronously as part of a digital scan group.
PAGE 3
USB-1808 Series Software Software Support USB-1808 Series devices are supported by the software in the table below. Ready-to-Run Applications Data acquisition companion software with drag-and-drop interface that is used to acquire, view, and log data, and generate signals. DAQami can be configured to log analog, digital, and counter channels, and to view that data in real-time or post-acquisition on user-configurable displays. Logged data can be exported for use in Excel® or MATLAB®.
PAGE 4
USB-1808 Series Specifications Signal I/O Connector 8 18-bit 18 bit 18-bit ADC ADC Buffer Buffer x2 Analog Output 2 4 Buffer 16-bit 16 bit 16-bit DAC DAC FPGA FPGA Trigger Input 2 Clock Input 2 Clock Output 2 Counter Input 2 Quad Counter Input Bitwise Bitwise Programmable Programmable DIO DIO DIO DIO Protection Protection 2 Timer Output 2 Power Power Supplies Supplies with with Shutdown Shutdown and and Soft Soft Start Start Microcontroller Microcontroller with with USB USB 2.0 2.
PAGE 5
USB-1808 Series Specifications Digital I/O transfer rate (synchronous) USB-1808: 0.023 Hz to 50 kHz input, 125 kHz output, based on the internal clock speed of 100 MHz USB-1808X: 0.
PAGE 6
USB-1808 Series Ordering Memory External Clock Input/Output Terminal names: ICLKI, ICLKO, OCLKI, OCLKO Terminal types xCLKI: Input, active on rising edge xCLKO: Output, power on default is 0 V, active on rising edge Terminal descriptions xCLKI: Receives sampling clock from external source xCLKO: Outputs the internal input scan or internal output scan clock, or the pulse generated from xCLKI when in external clock mode.