This Design Idea mates a precision current source IC with precision difference amp chips to create a programmable current source or sink. The resistor-programmable current source/sink in Figure 1 ...

The circuit shown in Figure 1 implements a programmable 0- to 20-mA precision current source. The REF192 low-headroom 2.5-V voltage reference (U1) can source up to 30 mA. An AD5280 digital ...

Large analog systems that present many loads to a voltage-reference source can often demand more current than a single reference IC can deliver. However, if the reference IC includes force and sense ...

Linear Technology has announced the LT6658, a precision voltage reference that incorporates two high current output buffers. Based on a 2.5V bandgap voltage reference, each output can be separately ...

A voltage reference is a critical to the ultimate achievable accuracy of a signal-processing front end and subsequent analog-to-digital and digital-to-analog conversion performance “down the line.” As ...

CMOS current reference circuits play a critical role in modern integrated circuits by providing a stable and reproducible current source that remains unaffected by variations in supply voltage, ...