High Resolution Analog-Digital Converter for Gas Sensor Interface
This discrete-time 3rd order delta-sigma analog-digital converter is supplied by 3.2V, and shows 16bit resolution. The measured effective number of bits(ENOB) is 13.2bit. The sampling rate is 500KS/s High SNDR is achieved by delta-sigma modulation, and this chip is based on TSMC 0.18um BCDMOS process.
Die size is 1.17..
14bit Inverter based low power Incremental ADC
an inverter based low power 14-b incremental analog to digital converter(ADC) based on Sigma-Delta ADC in a 0.18um CMOS technology. The proposed incremental ADC comprises a 2nd-order feedforward structure and the 2nd-order modulator is consist of an inverter based integrators for the area and power efficiency. The simu..
15bit Delta-Sigma (∑Δ) ADC
Voltage-domain temperature sensors need an ADC that has both low-power consumption and high resolution. A sigma-delta (∑Δ) ADC is a suitable ADC for temperature sensors. Successive approximation register (SAR) ADCs have a merit in low-power consumption. However, a SAR ADC is not appropriate for temperature sensors b..
A 24kHz BW 90dB SNDR Delta-Sigma Modulator with amplifier power reduction
A 90dB SNDR 24kHz BW discrete-time delta-sigma modulator is designed in 180nm CMOS process. Applying the proposed amplifier assisting technique, the slew rate of amplifier is increased and the current requirement is relieved for stable integrator settling. One-bit quantizer is applied to avoid DAC linearity problem and..
A 15bit 100S/s delta-sigma ADC for current sensor interface
This IP presents an amplifier-less and digital-intensive architecture for general purpose current sensor interface. The implemented circuit in 0.35um CMOS converts an input range of 3.0uA to 15b digital output while consuming 15.8uW. With a conversion rate of 50 samples/s, filtered output shows an ENOB of 13.4b and a d..