Galvanically isolated, dual-channel, 16-bit, simultaneous sampling, daisy-chain data acquisition system
New Analog/Analog Isolator Using Isolated Σ-Δ Modulator, Isolated DC/DC Converter and Active Filter
Construct a low-cost programmable gain instrumentation amplifier circuit using the four-channel single-pole single-throw switch ADG1611 and the instrumentation amplifier AD620
Using a current-sense amplifier, a high-side MOSFET driver, and a latching voltage monitor a circuit can be easily constructed that protects from overcurrent conditions and operates at voltages as high as 26V.
The MAX5953A provides a simple and inexpensive, yet complete, nonisolated power solution for a powered device (PD) in a Power-over-Ethernet (PoE) system. The circuit provides the PD with detection and classification signatures in compliance with the IEEESM 802.3af standard, plus programmable inrush-current control, an integrated power switch, a PWM controller, and integrated high- and low-side switches. The buck step-down converter is capable of > 80% conversion efficiency while delivering 12V at 0.85A.
Integrating a battery-load switch function into a smart-charger IC greatly benefits low-cost applications. The DS2715 battery-charger IC intelligently senses battery loading after removal of the charge source to seamlessly maintain power to connected loads. This application note details examples of several application circuits that optimize the performance of the DS2715. Specifically, it presents a circuit for applications in which the DS2715 is connected to noncontinuous loads, and a circuit for powering the load directly from batteries.
This article presents a five-channel hot-swap circuit that handles both positive and negative input voltages with sequential turn-on. The unique configuration allows two negative-voltage channels not protected by circuit breakers, in addition to three positive-voltage channels, to be controlled by a single MAX5927A positive-voltage hot-swap controller. The included test data verifies that the circuit meets the described load and power-sequencing requirements of the five channels.
Designers need open-drain logic to run at 1.8V at the 1-Wire master IO. Most 1-Wire slave devices cannot run at 1.8V. This application note presents an RD (reference design) of a circuit that translates from a 1.8V 1-Wire master to a 5V