An amplifier-shared inverter-based MASH structure ΔΣ modulator for smart sensor interfaces

Honarparvar, Mohammad; Safi-Harb, Mona

doi:10.1109/iscas.2016.7539031

Cited by 4 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In sub-1 V environment, the inverter-based structure is very popular for the amplifier design because it has a higher g m =i d efficiency and a larger input common voltage range [19,26]. In this paper, a two-stage inverter-based amplifier with miller compensation is utilized, as shown in Fig.…”

Section: The Dynamic-biased Inverter-based Amplifiersmentioning

confidence: 99%

A 3rd-order 1-bit Σ-Δ modulator with a 2-tap FIR filter embedded

Chen

Wang

2019

IEICE Electron. Express

View full text Add to dashboard Cite

This paper presents a low-voltage 3 rd -order single-bit switchedcapacitor Σ-Δ modulator implemented in a 40-nm CMOS technology. In the modulator, a 2-tap FIR (finite impulse response) filter is employed in the feedback loop to reduce the integrator output swings. With the help of digital assisted techniques, the number of the sampling capacitors in the first integrator is reduced to mitigate the performance deterioration caused by capacitor mismatch. Besides, the inverter-based amplifiers with dynamic-biased structure are proposed to reduce the power consumption. The proposed modulator is sampled at 25.6 MHz over a bandwidth of 100 kHz. The modulator achieves a max SNR (signalto-noise ratio) of 92.1 dB, a max SNDR (signal-to-noise and distortion ratio) of 87.3 dB, and a DR (dynamic range) of 88.1 dB under the supply voltage of ²0.45 V while consuming a total power consumption of 790 µW.

show abstract

Section: The Dynamic-biased Inverter-based Amplifiersmentioning

confidence: 99%

A 3rd-order 1-bit Σ-Δ modulator with a 2-tap FIR filter embedded

Chen

Wang

2019

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…The vertical and horizontal sharing of the Op‐Amp in the

\sum normalΔ normalM

is reported in [4, 5]. Although, the use of inverter‐based low‐power Op‐Amp for bio‐medical applications is also reported, where the power consumption of an Op‐Amp is minimised [6, 7].…”

Section: Introductionmentioning

confidence: 99%

67 dB SNDR 20 kHz BW SC third‐order modulator with single Op‐Amp and 20 µW power consumption for bio‐medical applications

Sharma

Kumar

Vasantha

2020

IET Circuits, Devices & Systems

View full text Add to dashboard Cite

“…To overcome the aforementioned drawbacks, a cascade

normalΔ normalΣ M

with modified unity STF feed‐forward architecture [3] for low‐power high‐speed application is addressed in this Letter. The main features of the proposed modulator are as follows.…”

Section: Introductionmentioning

confidence: 99%

SMASH ΔΣ modulator with adderless feed‐forward loop filter

2017

View full text Add to dashboard Cite

A novel cascade ∆Σ modulator, which combines the benefits of SMASH topology and feed-forward loop filter, is presented in this letter. The proposed ∆Σ architecture is based on moving the powerhungry adder block from the quantizer input to the first integrator output. The proposed architecture shows a better OTA linearity and relaxed OTA DC-gain compared to conventional MASH and SMASH topologies. This feature makes the modulator topology more suitable than conventional MASH and SMASH topologies for low-voltage applications.

show abstract

An amplifier-shared inverter-based MASH structure ΔΣ modulator for smart sensor interfaces

Cited by 4 publications

References 8 publications

A 3rd-order 1-bit Σ-Δ modulator with a 2-tap FIR filter embedded

A 3rd-order 1-bit Σ-Δ modulator with a 2-tap FIR filter embedded

67 dB SNDR 20 kHz BW SC third‐order modulator with single Op‐Amp and 20 µW power consumption for bio‐medical applications

SMASH ΔΣ modulator with adderless feed‐forward loop filter

Contact Info

Product

Resources

About