Datasheet
Table Of Contents
Measurement Computing (508) 946-5100
1
info@mccdaq.com mccdaq.com
USB-1608FS-Plus
Measurement Computing (508) 946-5100
1
info@mccdaq.com mccdaq.com
Features
• Eight single-ended analog
inputs
• 16-bit resolution
• Simultaneous sampling
• 400 kS/s aggregate sample rate
(100 kS/s max for any channel)
• Eight high-current digital I/O
• 32-bit event counter
• External clock I/O
• External digital trigger input
• OEM version available
Supported Operating Systems
• Windows
®
10/8/7/Vista
®
/XP
32/64-bit
• Linux
®
• Android
™
Analog Input
The USB-1608FS-Plus device has a dedi-
cated A/D converter per analog channel
for simultaneous sampling. It offers
software-selectable analog input ranges
for ±10 V, ±5 V, ±2 V, and ±1 V.
Simultaneous Sampling
Each analog input channel has a dedicated
16-bit A/D converter for true simultaneous
sampling of all 8 inputs.
Sample Rates
With hardware paced mode, the maxi-
mum throughput rate is 100 kS/s for
any one channel, up to about 400 kS/s
aggregate for multiple channels.
Use burst scan mode to run any number of
channels at the maximum rate of 100 kS/s
up to the full capacity of the 32K sample
FIFO. The maximum sampling rate is
800 kS/s aggregate for all channels.
Pull-Up/Down Configuration
The USB-1608FS-Plus has a user-con-
figurable internal jumper to configure
the digital bits for pull-up (default) or
pull-down.
Counter Input
A 32-bit event counter can accept a signal
up to 1 MHz. The internal counter incre-
ments when the TTL levels transition from
low to high.
External Clock I/O
The USB-1608FS-Plus has a bidirectional
external clock terminal. When configured
for input, A/D conversions can be paced by
an external source. The USB-1608FS-Plus
supports TTL-level input signals up to
100 kHz.
When configured for output, this device
can pace A/D conversions on a second
device and acquire data from all input
channels simultaneously.
Channel-Gain Queue
Users can configure a list of channels and
gains for each scan. Each channel can
have a different gain setting.
The settings are stored in a channel-gain
queue list that is written to local memory
on the device. The channel-gain queue list
can contain up to eight unique channels.
The channels can be non-consecutive, but
must be listed in increasing order.
Digital I/O
Each of the eight digital I/O channels is
individually-configurable for input or
output. When configured for input, the
digital I/O terminals can detect the state
of any TTL-level input.
The digital I/O channels are high-drive
(24 mA) connections.
Simultaneous USB DAQ Device
Overview
The USB-1608FS-Plus provides simultaneous sampling with a sample rate of
100 kS/s maximum for any one channel, and up to 400 kS/s aggregate for mul-
tiple channels. The device also features a 32-bit event counter, 8 digital I/O lines,
external digital triggering, and a bidirectional clock. An OEM version is available
for embedded applications.
The USB-1608FS-Plus features simultaneous sampling of 8 analog inputs, and also provides
8 DIO lines and a 32-bit event counter