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 ...
TI has remained remarkably quiet about its latest precision voltage reference IC: REF81. It is a modified form of the equally quietly released REF80, which is a temperature-controlled buried Zener ...
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, ...
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