An instrumentation amplifier offers precise gain without feedback resistors, and, at any value of gain, it provides high input impedances at its noninverting and inverting inputs. In a typical IC instrumentation amplifier, a single resistor...

One option for driving high-brightness LEDs uses the standard stepdown buck converter. The sense resistor, RS, generates a feedback voltage, VFB, that sets the desired LED current...

You can use the simple sensor circuit to remotely monitor the level of liquid water in a vessel such as a swimming pool. The LMC555 sensor oscillator provides an output-signal frequency that is a function of the water level...

Pulse width modulation is a terrific basis for digital to analog conversion. Credit goes to features like simplicity and perfect differential and integral linearity. Unfortunately, PWM’s need for ripple filtering tends to make it slow...

The 0- to 20-mA current loop is a reliable means of data communication in industrial applications. These circuits use a precision shunt in the receiver to convert the current signal into a voltage signal...

This is the Microchip MCP41xxx digital potentiometer data sheet that includes an interesting application circuit comprising a Dpot controlled amplifier with pseudologarithmic gain settings...

Designers charged with creating precision analog front ends and signal chains know that the performance of the voltage reference is often the ultimate determinant of system performance...

The utilization of Micro-Electro-Mechanical Systems microphones presents an opportunity to incorporate sophisticated communication and monitoring capabilities into a diverse range of devices...

Battery stack voltage monitor development is aided by a floating, variable potential battery simulator. This capability permits monitor accuracy verification over a wide range of battery voltage...

Computer Terminal Corporation launched the DataPoint 3300 computer terminal in 1969 as a platform to replace teleprinters, or the precursors to fax machines...