Case 1: designed and completed the simulation IP of single-phase smart meter for a listed company in 2013, and the design indicators were as follows

Three output channels of sigma delta modulator are provided

Programmable gain amplifier, amplification gain 4,8,16,32 optional

The three channels are controlled by independent enabling terminals

With integrator reset function

Built in 2.5 ± 4% low temperature drift reference voltage source

Built in reference voltage temperature drift coefficient and power consumption adjustment function power supply voltage

Power supply voltage: 5V for analog power supply and 1.8V for digital power supply

Modulator output rate: 1MHz

Σ - Δ ADC SNR > 85dB (OSR = 160)

The overall current of analog part is less than 3mA

Temperature range: - 40 ~ 85 ℃

Case 2: providing a low-power 60m 12bit pipeline ADC IP Design for a company in Shanghai in 2014

Block diagram of design principle

Submit layout IP

Case 3: in April 2015, we provided RS485 chip customization service for a company in Guangzhou based on 0.5um HV CMOS process with built-in lightning resistant TVs

Block diagram of design principle

Some design indexes

Case 4: providing isolated Δ - ∑ ADC modulator IP for a company in Guangzhou in 2016

Some design indexes

Case 5: providing SAR ADC IP for a company in Shenzhen in 2017

Submit layout IP

Some design indexes

Case 6: providing customized service of readout circuit chip of imaging detector for a research institute in 2018

Some design indexes