Automatic impedance testing with the Sequid ATDR-100 helps PCB manufacturers to save time and reduce costs by eliminating manual measurement effort. It guarantees a high level of reproducibility and consistent quality, also for employees who do not have in-depth technical knowledge. By streamlining the testing process, manufacturers can increase throughput, improve yield, and strengthen their reputation for delivering reliable, high-performance PCBs.
The ATDR-100 is a test adapter that is offered as an extension to the DTDR-65. It combines a high-quality needle bed adapter (Ingun MA 2111) with an included RF multiplexer. In this way, up to 8 single-ended or differential lines located on a test coupon can be measured in an automated test run.
It is recommended to use the ATDR-100 software and hardware in conjunction with the Sequid Transmission Line Calculator (STLC). With STLC you can calculate your test coupon and create the coupon in such a way that the data can be loaded directly into the ATDR software. The Gerber-Files for the test coupon production can be generated with STLC as well.
The software provides all information about the transmission lines on the coupon at a glance. These include, for example, the parameters cable type and geometry, nominal impedance and tolerance.
To measure, the test coupon is simply inserted into the test adapter with the guide pins ensuring a precise fit. When the adapter is closed, the trace pads are automatically pressed against the spring-loaded pins. A high-frequency TDR step signal is then applied to the transmission lines. By using a high-quality differential RF multiplexer, all lines can be measured automatically one after the other.
The measurement is started immediately after the adapter is closed, ensuring a fast execution time of only a few seconds. The completion of the measurement is signaled to the user and the coupon can be removed. The impedance data is automatically stored in a measurement list and can be saved together with other measurements in project files.
After finishing all measurements, an expressive PDF report can easily be created. Furthermore, the project can then be archived and reopened at any time.
| Value | Comment | |
| Hardware Features | ||
|---|---|---|
| Channels | 2 | |
| ESD-protection | Yes | Included |
| Horizontal (in combination with the DTDR-65) | ||
| Rise time | 80ps 100ps |
20%-80% 10%-90% |
| Analog bandwidth | ≈6.5GHz | |
| Jitter | <750fs | Extremely low |
| Channel-to-channel skew | <5ps | |
| Vertical (in combination with the DTDR-65) | ||
| Step amplitude | 120mV | @50Ω |
| Noise | <750uV | Vrms |
| True differential | Yes | |
| Measurements | ||
| Wave impedance | Single-ended, differential |
|
| Calibration | ||
| Method | OSLT | Open, short, load |
| Wizard guided | Yes | |
| Interface | ||
| PC interface | USB | |
| Mechanical | ||
| Dimensions | 320×515×270mm³ | |
| Weight | 12kg | |
| Environment | ||
| High temperature stability | 0°C to 40°C | |
| Working environment | Production | |
| External components | DTDR-65, SPMC-P | |
