National Instruments USB-5681 RF Power Sensor Device

The USB-5681 is a RF Power Sensor Device. The NI USB-5681 device is a product of National Instruments. National Instruments offers the USB-5681 RF Power Sensor Device with the part number 781214-01. Due to possessing great measurement precision in a small-sized package, the deployment of the NI USB-5681 in mobile applications is preferred. The USB-5681 can perform in two modes: hardware-triggered mode and software-triggered mode.

The National Instruments USB-5681 RF Power Sensor Device supports a wide range of frequency, thereby proving itself a favored choice for wideband applications. The USB-5681 operates in frequencies ranging from 10 MHz to 18 GHz. The compatible input signal strength for the NI USB-5681 RF Power Sensor Device is in the range of – 40 dBm to + 20 dBm. This overall range is categorized in two sub-ranges: +20 dBm to -7 dBm and -7 dBm to -40 dBm for the measurement results. The USB-5681 device features a bandwidth support of 50 kHz between signal and channel. The measurement speed of the NI USB-5681 RF Power Sensor Device is 100 S/s. The typical level of uncertainty in the linearity of the measurements performed by the USB-5681 device is less than 3 %.

The USB-5681 RF Power Sensor Device is designed according to the safety standards of IEC 61010-1, EN 61010-1, UL 61010-1, CSA C22.2 No. 61010-1. For operation, the NI USB-5681 device requires an input of 5 VDC voltage from the host USB and 450 mA current. The protection scheme of the USB-5681 RF Power Sensor Device permits a maximum voltage in the range of ±20 VDC at RF port and absolute power of +30 dBm.