This application note describes how to achieve complex linear circuit functions, such as data converters and sample-holds, in circuits powered by a single 1.5V cell.
Linear Technology Corporation presents this document to address the challenges of designing electronic circuits powered by a single 1.5V battery cell. The text explains that standard linear ICs are difficult to use at this voltage due to silicon transistor drops and end-of-life battery variations, but specific circuit techniques can overcome these limitations.
The current consumption for this circuit is about 205uA.
The converter maintains 10-bit accuracy over a temperature range of 15°C to 35°C.
The first circuit has an acquisition time of 4ms to 0.1% accuracy.