Analog VLSI and neural systems
Analog VLSI and neural systems
Current-mode CMOS integrated circuits for analog computation and signal processing: a tutorial
Analog Integrated Circuits and Signal Processing
VLSI implementation of receptive fields with current-mode signal processing for smart vision sensors
Analog Integrated Circuits and Signal Processing - Special issue: current processing and current mode circuits, part I
CMOS differential current conveyors and application for analog VLSI
Analog Integrated Circuits and Signal Processing
| Hi-index | 0.00 |
The CMOS Imager presented integrates a 2D photoreceptor array with a nine input analog processor on the same focal plane. The analog processor is fully programmable, performing multiply-accumulate operations. A VLSI implementation of spatial convolution operations performed on images is presented. A modified photoreceptor is presented that is based on current mode for signal transmission, thus decreasing the effect of noise on the transmitted signal and increasing the sensitivity per decade. A novel decoding scheme was used to decode the required set of photoreceptors to be presented to the analog processor. Thus only one processor unit is needed whose inputs depend on the time state. A prototype system was fabricated that incorporates 15×15 pixels in a 2×2 mm^2 using a 2 μm double metal, single poly process.