1. Flexible Coaxial Cable Assembly: microbend®

    microbend assemblies provide you with a standard preassembled and tested high performance, costeffective truly flexible alternative to .047 inch custom semi-rigid cable assemblies, eliminating the need for predefined custom lengths and bend configurations. microbend features include 35 % lower loss than .047 inch semi-rigid cable, a minimum bend radius of 1.52 mm (0.060 inch) and triple shielding for high isolation. microbend assemblies are available with a wide range of connector interfaces. All microbend assemblies are available only in a ruggedised version.

  2. Analog-To-Digital Converter: MCP3421

    The MCP3421 is a single channel low-noise, high accuracy delta-sigma A/D converter with differential inputs and up to 18 bits of resolution in a small SOT-23-6 package. The on-board precision 2.048V reference voltage enables an input range of ±2.048V differentially. The device uses a two-wire I2C™ compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. The MCP3421 device performs conversions at rates of 3.75, 15, 60 or 240 samples per second depending on user controllable configuration bit settings using the two-wire I2C™ compatible serial interface. This device has an onboard programmable gain amplifier (PGA). User can select the PGA gain of x1, x2, x4, or x8 before the analog-to-digital conversion takes place. This allows the MCP3421 device to convert a smaller input signal with high resolution. The device has two conversion modes: (a) Continuous mode and (b) One-Shot mode. In One-Shot mode, the device enters a low current standby mode automatically after one conversion. This reduces current consumption greatly during idle periods. The MCP3421 device can be used for various high accuracy analog-to-digital data conversion applications where ease of use, low power consumption and small footprint are major considerations.

  3. Analog-To-Digital Converter: MCP3421 Datasheet

    The MCP3421 is a single channel low-noise, high accuracy ΔΣ A/D converter with differential inputs and up to 18 bits of resolution in a small SOT-23-6 package.

  4. Thermocouple Reference Design

    This user's guide describes how to use Thermocouple Reference Design. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.

  5. Designing Operational Amplifier Oscillator Circuits For Sensor Applications

    Operational amplifier (op amp) oscillators can be used to accurately measure resistive and capacitive sensors.

  6. Using Digital Potentiometers To Design Low Pass Adjustable Filters

    The most common filter found in a data acquisition system signal path is a low-pass filter.

  7. Using Digital Potentiometers For Programmable Amplifier Gain

    Usually a sensor requires its output signal to be amplified before being converted to a digital representation.

  8. Battery Fuel Measurement Using Delta-Sigma ADC Devices

    The battery fuel status indicator is a common feature of the battery-supported handheld devices.

  9. Low-Power Linear Active Thermistor™ IC: MCP9700

    Linear Active Thermistor™ ICs are sensors whose output voltage is directly proportional to measured temperature. The MCP9700 can accurately measure temperature from -40C to +150C. The output of the MCP9700 is calibrated to a slope of 10mV/°C and has a DC offset of 500mV. The offset allows reading negative temperatures without the need for a negative supply. The MCP9700 is packaged in space saving 5-pin SC-70 packages, making it ideal for space-critical and low-cost applications.

  10. Rail-To-Rail Operational Amplifiers: MCP6231/1R/1U/2/4

    The Microchip Technology Inc. MCP6231/1R/1U/2/4 operational amplifiers (op amps) provide wide bandwidth for the quiescent current. The MCP6231/1R/ 1U/2/4 family has a 300 kHz gain bandwidth product and 65°C (typical) phase margin. This family operates from a single supply voltage as low as 1.8V, while drawing 20 μA (typical) quiescent current. In addition, the MCP6231/1R/1U/2/4 family supports rail-to-rail input and output swing, with a common mode input voltage range of VDD + 300mV to VSS – 300mV. These op amps are designed in one of Microchip’s advanced CMOS processes.

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