Texas Instruments today introduced digital isolation and delta-sigma modulator families that offer reinforced isolation to help protect electronic equipment from high line voltages. The ISO7842 family provides the industry’s highest immunity reinforced isolators and the first to withstand an isolation barrier with a working breakdown voltage of 1,500 Vrms for a minimum lifetime of 40 years. The AMC1304 delta-sigma modulator family offers best-in-class precision performance and the lowest power consumption with reinforced isolation for current shunt monitoring.
Manufacturers of factory automation, motor control and other industrial equipment are integrating more advanced electronics to reduce power and increase efficiency and system intelligence, driving data rate requirements higher and raising the bar on system performance. TI’s new devices offer robust, high-speed, high-performance reinforced isolation to meet critical functional and safety isolation requirements for applications exposed to potential high voltage breakdowns, while providing decades of reliability with precision analog performance and high immunity for noisy industrial environments.
Key benefits of the ISO7842 family:
Key benefits of the AMC1304 family:
Tools and support to jump-start design
TI support, including hardware evaluation kits and reference designs from the TI Designs library, speeds time to market for designers using the ISO7842 and AMC1304 families.
The isolated current shunt and voltage feedback reference design (TIDA-00171) implements the AMC1304 delta-sigma modulator and the C2000™ TMS320F28377D Delfino™ MCU. This design is being demonstrated this week in a motor control application at the electronica 2014 Trade Fair, Hall A4, Booth 420. The isolated LVDS reference design (TIDA-00330) uses a reinforced isolated M-LVDS transceiver node and isolated power supply to enable a robust high-speed serial interface design, utilizing the ISO7842 digital isolator, SN65MLVD203 M-LVDS transceiver, SN6501 transformer driver and TPS76333 single-channel LDO. Two additional reinforced isolation reference designs are available today from TI.
Visit precision data converters or industrial interface forums in the TI E2E™ Community to search for solutions, get help, share knowledge and solve problems with fellow engineers and TI experts.
Package, availability and pricing
The four-channel ISO7842 is the first in a reinforced digital isolator family that will include quad-, triple-, dual- and single-channel devices. The ISO7842 is available today in production quantities and additional devices will be available in 1Q 2015. The AMC1304M25 with integrated LDO and CMOS interface and AMC1305L25 delta-sigma modulators are the first of seven devices, which will support inputs ranging from +/-50 to +/-250 mV. The AMC1304M25 is available for sampling Nov. 18, with production quantities of all devices planned for early 2015.
The devices are offered in a SOIC-16 DW package, and priced in quantities of 1,000 as listed below.