UDAQ-1208, UDAQ-1408
The UDAQ-1208 module is a low-cost multifunctional module for the USB interface. The UDAQ-1408 is analogical type fitted with more accurate A/D converter.
The module provides eight analog inputs, two digital inputs (they serve also as the counter inputs) and one digital output (switching relay).
The analog inputs are accessible via double screw terminals, placed on the front panel, the digital ports are accessible via the terminals of the same type on the rare panel. There is also the USB connector in the rear.
The UDAQ-1208/1408 provide
- High-impedance analog inputs (see note below)
- Programmable input ranges (including ±10V range)
- High accuracy when setting the gain of the programmable amplifier
- High capacity buffer for measured data
- Counter values saved synchronously with data of analog inputs
Software support
The support is available for Windows XP, Windows 2000 and Windows 98/Me operating systems. Windows 95, Windows NT4 and MS-DOS are not supported.
Universal application driver with user-friendly interface is supplied - the same is supplied for the PCI cards. Advanced users may also use a low-level driver.
Specifications (UDAQ-1208/1408 ver. 2.0)
| Analog Inputs | 8x S.E. |
| ADC Resolution (Analog Inputs) |
12-bits (UDAQ-1208) 14-bits (UDAQ-1408) |
| Input Ranges | ±10V, ±5V, ±2V, ±1V, ±0.5V, ±0.2V |
| Overvoltage Protection | ±32V |
| Sampling frequency
(see note below) |
40kHz max. (PC RAM sampling depends on the system load) 20kHz max. (HDD sampling depends on the system load) |
| Data buffer | 1kB (+384B integrated in the USB driver) |
| Number and type of Counters | 2x 16-bit |
| Counter Input Frequency | 2MHz max. |
| Compatibility of the Counters | TTL/HC (overvoltage protection ±24V, isolation protection 1kV) |
| Number of Digital Inputs | 2 (common with counters) |
| Digital Inputs Compatibility | TTL/HC (overvoltage protection ±24V, isolation protection 1kV) |
| Number of Digital Outputs | 1 |
| Compatibility of Digital Outputs |
C type relay 125V/0.5A |
| Bus Type | USB rev. 1.1 USB rev. 2.0 (full speed mode) |
| Module Dimensions | Approx. 140x110x35 mm |
Note: The sampling frequency shown above is for the signal source input impedance of max. 1 kOhm. When using higher impedance, the problem of transferring of the charge during the multiplexer schwitching is to be solved by using longer settling time at the input amplifier. When using TEDIA_DAQ01 library, this could be done via the Advanced Settings dialog in the Administration program "admin.exe".