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Probes / Active Probes

Описание:
Operational amplifiers (op amps) have been used for decades in signal conditioning circuits and measurement systems. An op amp that has an output spanning from negative to positive supply rail are generally referred to as rail-to-rail output (RRO) op amps. These devices have been used increasingly in portable systems to drive analog to digital converters (ADCs) where reducing power consumption while not sacrificing converter dynamic range is a key concern. While the task calls for the lowest power RRO op amps, circuit designers are finding out that rail-to-rail doesn’t exactly mean rail-to-rail. In reality the output is limited to a couple hundred millivolts within the rail depending on the loading. This problem is known as headroom and is the result of the RRO architecture. This application report focuses on using a low power RRO fully differential op amp (THS4531A) and low noise negative bias generator (LM7705) to achieve true zero volts in a ground referenced single supply system.

Возможности:

Single supply +3V to +5V Extends Differential Amplifier Output to Include 0V Low Noise (Approx 100dB SNR) Low Power (2mW @ 5V) 36MHz of Bandwidth This reference design has been lab tested and is supported with design files and an application report

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
Описание:
This reference design demonstrates how to interface an MSP430 MCU featuring CapTIvate™ technology with an MSP432 MCU host microcontroller using the CapTIvate Software Library communications module. The design integrates capacitive touch technology with haptics, an MSP432 MCU as host, driving a color QVGA LCD screen.
Возможности:

Ultra-low-power MSP430 microcontroller featuring CapTIvate touch technology and FRAM Mutual capacitance HMI with 17 buttons, 2 sliders, 1 wheel, a proximity/guard channel and haptics MSP432 MCU, a low-power, high-performance 32-bit ARM® Cortex®-M4F host 320 x 240 pixel SPI controlled TFT QVGA display CapTIvate Design Center support

Документация:
  • Даташит
  • Схемотехника
  • BOM
Описание:
This multiplying DAC (MDAC) reference design outputs unipolar voltages from 0 V to 2.5 V. This design does not require dual supplies to realize a unipolar, positive output voltage. This design removes the need for a negative supply rail by applying a bias voltage to the output transimpedance stage.

Возможности:

TI Designs - Precision: Verified Design includes Theory, Component Selection, TINA-TI Simulation, PCB Schematic & Layout, Bill of Materials, and Measured Performance. 12-bit, 0-2.5 V output Multiplying DAC with single supply <0.1 %FSR total unadjusted error 1 LSB INL

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
Описание:

TIPD194 – это прецизионный динамический источник опорного напряжения, который способен выдавать напряжение питания в диапазоне ±10 В с 16-битным разрешением и чьими отличительными характеристиками являются точность и низкий уровень шумов.

Возможности:

  • Диапазон выходного напряжения ±10 В
  • Погрешность менее 0,02 % во всём диапазоне
  • Схема была испытана во всём температурном диапазоне

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Документация:
  • Даташит
  • Схемотехника
  • BOM