CN0270

Complete 4 mA to 20 mA HART solution

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CN0278

Complete 4 mA to 20 mA HART solution with additional voltage output capability

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CN0280

Integrated isolated power supply, powerful fully isolated current sensing circuit for solar photovoltaic converters

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CN0287

Isolated 4-Channel Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy

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CN0321

Fully isolated, single-channel voltage, 4 mA to 20 mA output with HART

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CN0325

PLC/DCS universal analog input using 4-pin or 6-pin terminal strip

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CN0335

12-Bit, 300 kSPS, Single Supply, Fully Isolated Data Acquisition System for ±10 V Input

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CN0336

12-bit, 300 kSPS, single supply, fully isolated data acquisition system for 4-20 mA input

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CN0337

带三线式补偿的12位、300 kSPS、单电源、完全隔离式RTD温度测量系统

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CN0197

Li-ion battery pack monitor with integrated signal and power isolation

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CN0194

Galvanically isolated, dual-channel, 16-bit, simultaneous sampling, daisy-chain data acquisition system

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CN0185

New Analog/Analog Isolator Using Isolated Σ-Δ Modulator, Isolated DC/DC Converter and Active Filter

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Bluetooth BT121 Development Kit Design Document

BT121 is a Bluetooth dual-mode module suitable for applications requiring Bluetooth LE and BR/EDR connections. It can connect to older devices that only support Bluetooth SPP or Apple® iAP2 profiles as well as devices that support Bluetooth LE. The BT121 integrates a high-performance Bluetooth radio, a low-power ARM Cortex microcontroller and Bluegiga Bluetooth dual-mode stack software, requiring no RF or Bluetooth software development, making it very easy to use. The BT121 can be used as a modem with a separate host MCU, but applications can also be embedded into the built-in ARM® Cortex® MCU with the Bluegiga BGScriptTM scripting language.

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BLE113 development kit design information

BLE113 is a Bluetooth smart module targeting small, low-power sensors and accessories. It integrates all the functionality required for Bluetooth Smart applications, including Bluetooth radio, software stack and GATT-based profiles. The BLE113 Bluetooth Smart module can also host end-user applications, meaning no external microcontroller is required in devices with size or price constraints. The module features flexible hardware interfaces to connect different peripherals and sensors, and can be powered directly from a standard 3V coin cell or a pair of AAA batteries. In its lowest power sleep mode, it consumes only 500 nA and will wake up in a few hundred microseconds.

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Overcurrent monitor operates up to 26V

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.

Complete solution for low-cost electrical equipment including 12V buck converter

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 IEEE^SM 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.

Optimize the load switching function of DS2715 battery charger

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.

5-channel (3 +V and 2 -V) hot-swap reference design

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.

1-Wire Bidirectional Level Translator (1.8V to 5V) Reference Design

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 1-Wire slave device. The RD is used for driving typical 1-Wire slave devices. The MAX3394E voltage-level translator is featured in the design.

OCEANSIDE (MAXREFDES9#): 3.3V to 15V input, ±15V (±12V) output, isolated power supply

This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input, ±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency step-up controller, a 36V H-bridge transformer driver for isolated supplies, a wide input range, and a pair of adjustable output low dropout (LDO) linear regulator. Test results and hardware files are included.

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