EDN

SCR topology transmogrifies into BJT two-wire precision current source

An SCR topology transmogrifies into BJT two-wire precision current source with a self-resetting fault-current limiter.
EDN

Precision dual current source is software-programmable

For PIN-diode biasing and other applications that require precise current control, the circuit of Figure 1 provides an accurate dual current source using only two small ICs. Click to Enlarge Image ...
Electronic Design

Measure RTD Sensors without a Precision Current Source

Traditionally, resistance-temperature-detector (RTD) sensor resistance is measured by applying a precision current source and measuring the developed voltage. This approach usually requires a ...
Electronic Design

Precision Current Source Design Employs Bootstrapped Integrator

The general-purpose current source in Figure 1 is accurate within 1% and insensitive to temperature (less than 50 ppm/°C). It also has a high output resistance and a wide compliance range (4.3 to 34..