Texas Instruments Inc. (TI) has launched SN65HVS882, a highly integrated digital-input serializer that incorporates eight channels to provide high-density signal conditioning in a single, compact device. The new serializer converts eight digital inputs, ranging from 0V to 34V, into a single data stream on SPI interface, simplifying the design and saves overall board space for industrial automation and test and measurement equipment.
Featuring high channel density, the SN65HVS882 allows engineers to reduce overall board space up to 60 percent compared to competing solutions. Several SN65HVS882 eight-channel serializers can be cascaded through an integrated SPI port, reducing both the isolation channels and controller pins required for high channel-count input modules. In addition, the internal programmable de-bounce feature filters out spurious pulses up to 3ms on noisy switch inputs, eliminating the need for external components or software.
The SN65HVS882 also has a built-in voltage regulator that converts the industrial 10V to 34V field voltage to a 5V level, suitable to power the system's isolation device or logic controller. The new serializer operates over a wide temperature range of -40°C to 125°C, enabling applications such as process control systems, factory automation, or test and measurement equipment.
The device also features an adjustable input current limit that allows the use of a single resistor to set the maximum input current in the range of 0.2mA to 5mA, reducing system-level power dissipation by more than 50 percent in typical industrial applications.