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USB-1208FS-Plus/LS/1408FS-Plus Series

May 2018. Rev 3

DS-USB-1208FS-Plus-LS-1408FS-Plus-Series

© Measurement Computing Corporation

Digital I/O

Digital type: 82C55

Number of I/O: 16 (Port A0 through A7, Port B0 through B7)

Configuration: 2 banks of 8.

Pull-up/down configuration: All pins pulled up to Vs through 47 kΩ resistors

(default). Positions available for pull down to ground. Hardware-selectable

through 0 Ω resistors as a factory option.

Input high voltage: 2.0 V min, 5.5 V absolute max

Input low voltage: 0.8 V max, –0.5 V absolute min, 0 V recommended min

Output high voltage (IOH = –2.5 mA): 3.0 V min

Output low voltage (IOL = 2.5 mA): 0.4 V max

External Trigger

Trigger source: External digital, TRIG_IN (protected with a 1.5 kΩ series resistor)

Trigger mode: Level sensitive; software-selectable for TTL level high or low input

Trigger latency: Burst, 25 µs min, 50 µs max

Trigger pulse width: Burst, 40 µs min

Input high voltage: 3.0 V min, 15.0 V absolute max

Input low voltage: 0.8 V max

Input leakage current: ±1.0 µA

Counter

Pin name: CTR

Counter type: Event counter

Number of channels: 1

Input type: TTL, rising edge triggered

Resolution: 32 bits

Maximum input frequency: 1 MHz

High pulse width: 500 ns min

Low pulse width: 500 ns min

Schmidt trigger hysteresis 20 mV to 100 mV

Input leakage current: ±1 µA

Input high voltage: 4.0 V min, 5.5 V absolute max

Input low voltage: 1.0 V max, –0.5 V absolute min

Non-Volatile Memory

Memory size: 8192 bytes

Memory configuration

Address 0x0000 to 0x17FF: Read/write access, A/D data (4 kS)

Address 0x1800 to 0x1EFF: Read/write access, user data area

Address 0x1F00 to 0x1FEF: Read/write access, calibration data

Address 0x1FF0 to 0x1FFF: Read/write access, system data

Power*

Supply current: 20 mA (total current requirement; includes up to 5 mA for

the status LED)

5 V USB power available

Connected to self-powered hub: 4.5 V min, 5.25 V max

Connected to bus-powered hub: 4.1 V min, 5.25 V max

Output current (total amount of current that can be sourced from the USB 5 V, analog

outputs and digital outputs)

Connected to self-powered hub: 450 ma min, 500 ma max

Connected to bus-powered hub: 50 mA min, 100 mA max

General

USB controller clock error

25 °C: ±30 ppm max

0 °C to 70 °C: ±50 ppm max

Device type: USB 1.1 low-speed mode (1.5 Mbps)

Device compatibility: USB 1.1, 2.0

Environment

Operating temperature: 0 ˚C to 70 ˚C

Storage temperature: –40 ˚C to 70 °C

Relative humidity: 0% to 90% non-condensing

Acquisition data buffer: 4 kS

Signal I/O connector: 2 banks of screw-terminal blocks

Dimensions (L × W × H): 79 × 82 × 27 mm (3.20 × 3.10 × 1.05 in.)

* Self-powered USB hubs and hosts have their own power supply. The USB

port(s) on your computer are root port hubs. All externally powered root

port hubs (desktop computers) provide up to 500 mA of current for a

USB device. Battery-powered root port hubs provide 100 mA or 500 mA,

depending upon the manufacturer. A laptop PC that is not connected to an

external power adapter is an example of a battery-powered root port hub.

Bus-powered USB hubs and hosts do not have their own power supply.

Ordering

Order Information

Hardware

Part No.

Description

USB-1208LS

USB-based data acquisition device with eight

12-bit analog inputs, 1.2 kS/s, two analog

outputs, and 16 digital I/O. Includes USB cable

and MCC DAQ software.

USB-1208FS-Plus

USB-based multifunction DAQ device with 8 SE/

4 DIFF analog inputs, up to 12-bit resolution,

50 kS/s, 2 analog outputs, and 16 digital I/O

(includes eight high-current lines). Includes USB

cable and MCC DAQ software.

USB-1208FS-Plus-OEM

Board-only USB-based DAQ device with eight

analog inputs, 50 kS/s, up to 12-bit resolution,

50 kS/s, two analog outputs, 16 digital I/O lines

(includes eight high-current lines).

USB-1408FS-Plus

USB-based multifunction DAQ device with 8 SE/

4 DIFF analog inputs, up to 14-bit resolution,

48 kS/s, 2 analog outputs, and 16 digital I/O

(includes eight high-current lines). Includes USB

cable and MCC DAQ software.

USB-1408FS-Plus-OEM

Board-only USB-based multifunction DAQ board

with 8 SE/4 DIFF analog inputs, up to 14-bit

resolution, 48 kS/s, 2 analog outputs, and 16

digital I/O (includes eight high-current lines).

Software also Available from MCC

TracerDAQ Pro

DASYLab

Out-of-the-box virtual instrument suite with strip

chart, oscilloscope, function generator, and rate

generator – professional version

Icon-based data acquisition, graphics, control, and

analysis software