18601529. DIGITAL-TO-ANALOG CONVERTER, DATA DRIVER, AND DISPLAY DEVICE simplified abstract (LAPIS Technology Co., Ltd.)
Contents
DIGITAL-TO-ANALOG CONVERTER, DATA DRIVER, AND DISPLAY DEVICE
Organization Name
Inventor(s)
Hiroshi Tsuchi of Yokohama (JP)
DIGITAL-TO-ANALOG CONVERTER, DATA DRIVER, AND DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18601529 titled 'DIGITAL-TO-ANALOG CONVERTER, DATA DRIVER, AND DISPLAY DEVICE
The disclosure involves a differential amplifier and a first decoder that distributes and supplies a first or a second voltage to each of a plurality of input terminals based on digital data. The differential amplifier consists of a Kth-power of 2 pieces of differential pairs, each driven by an individually received tail current, and a tail current control circuit that individually supplies the tail current to the Kth-power of 2 pieces of the differential pairs. The tail current control circuit sets a current ratio of the tail current flowing through two respective differential pairs among the Kth-power of 2 pieces of the differential pairs to be larger than a current ratio of the tail current flowing through other respective differential pairs excluding the two differential pairs.
- The disclosure includes a differential amplifier and a first decoder for distributing voltages based on digital data.
- The differential amplifier comprises a Kth-power of 2 differential pairs, each driven by an individually received tail current.
- A tail current control circuit supplies the tail current to the differential pairs and sets a current ratio for optimal performance.
- The current ratio for two specific differential pairs is set to be larger than the ratio for other pairs, enhancing differential amplifier efficiency.
- This innovation improves the performance and efficiency of differential amplifiers in electronic circuits.
Potential Applications: - Electronic circuit design - Signal processing systems - Voltage distribution technologies
Problems Solved: - Optimizing current ratios in differential amplifiers - Enhancing efficiency in electronic circuits
Benefits: - Improved performance in signal processing - Enhanced efficiency in voltage distribution - Better overall functionality in electronic systems
Commercial Applications: Potential commercial uses include: - Integrated circuits - Audio amplifiers - Communication systems
Questions about the technology: 1. How does the tail current control circuit optimize the performance of the differential amplifier? 2. What are the specific advantages of setting different current ratios for different pairs of differential amplifiers?
Original Abstract Submitted
The disclosure includes a differential amplifier and a first decoder that distributes and supplies a first or a second voltage to each of a plurality of input terminals based on digital data. The differential amplifier includes a Kth-power of 2 pieces of differential pairs each driven by an individually received tail current, and a tail current control circuit that individually supplies the tail current to the Kth-power of 2 pieces of the differential pairs. The tail current control circuit sets a current ratio of the tail current flowing through of two respective differential pairs among the Kth-power of 2 pieces of the differential pairs to be larger than a current ratio of the tail current flowing through other respective differential pairs excluding the two differential pairs.
