USB-4702 User Manual
2
Chapter 1 Introduction
Thank you for buying the Advantech USB-4702 data acquisition module.
The Advantech USB-4702 is a powerful data acquisition (DAS) module
for the USB port. It features a unique circuit design and complete func-
tions for data acquisition and control.
1.1 Features
USB-4702 has the most requested measurement & control functions:
• 8 single-ended/ 4 differential or combination analog input channels
• 12-bit resolution A/D converter, with up to 10 kS/s sampling rate
• 8 digital input & 8 digital output channels (TTL Level)
• 2 analog output channels
• 16-bit programmable counter/timer x 1
• Programmable gain for each analog input channel
• Automatic channel/gain scanning
• Onboard 512K samples FIFO buffer for AI channels
• Bus-powered
• Supports high-speed USB 2.0
• Auto calibration function
• Hot swappable
Note:
The USB chip on your system may have a limitation on
the number of USB devices it will support. Normally,
only five USB-4702 devices can be supported.
Note:
The power output of an USB port is 500 mA, while the
USB-4702 requires 500 mA (max.). This means that if
an USB hub is used, it will need an external power sup-
ply to support more than one USB-4702 device.
