High Sensitivity and Wide Dynamic Range Analog Front-End Circuits for Pulsed TOF 4-D Imaging LADAR Receiver

Zheng, Hao; Ma, Rui; Liu, Maliang; Zhu, Zhangming

doi:10.1109/jsen.2018.2809795

Cited by 29 publications

(15 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4, is used to measure the flight time of photons and counts how many clock periods have passed during the photon's TOF. In this work, TDC is realized by a combination of two segments, which are a coarse TDC and a fine TDC [9]. For the coarse TDC to function as a conventional counter, a 15-bit linear feedback shift register (LFSR) has been applied.…”

Section: Tdcmentioning

confidence: 99%

See 1 more Smart Citation

A novel TDC/ADC hybrid reconstruction ROIC for LiDAR

Xia

et al. 2019

IEICE Electron. Express

View full text Add to dashboard Cite

A novel low complexity TDC/ADC hybrid reconstruction readout circuit (ROIC) is proposed for LiDAR. Compared with other TDC-based receivers, the proposed circuit can provide a higher sampling speed, while consuming less power than ADC-based receivers. The circuit structure is constructed based on a sampler circuit to realize full waveform reconstruction. To further reduce power consumption, a Time Control Technique (TCT) is utilized to enable the sampler circuit to work only when needed. More specifically, the bandwidth, gain and input referred noise current spectral density of analog front-end (AFE) circuit are set as 150 M, 83 dB and 3.25 pA/sqrt (Hz), respectively. The experiment results demonstrate the feasibility that the sampler circuit can reach more than 3 GHz sampling frequency with only 2.8 mW power consumption.

show abstract

Section: Tdcmentioning

confidence: 99%

“…The transmitter generates a narrow pulse laser to illuminate the target. The receiver is used to sense the pulsed echo through a linear-mode Avalanche photodiode (APD) then capture the intensity signal and mark the timing point of the received echo in the ROIC circuits [9].…”

Section: Introductionmentioning

confidence: 99%

A novel TDC/ADC hybrid reconstruction ROIC for LiDAR

Xia

et al. 2019

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…shunt feedback-based [1], [19]- [26] and current mode-based [4], [27]- [30] TIAs. A combination of both approaches has been employed in [31]. Shunt feedback-based TIAs have gained more attention, however, due to their unique properties of low noise, low input impedance, and relatively wide bandwidth [32].…”

Section: Introductionmentioning

confidence: 99%

“…A recent implementation example of this technique was presented in [20], [21]. Another approach is to employ electronic gain control, either within the input stage or as a separate block [1], [25], [27], [30], [31]. This technique suffers from a limited DR (typically 1: ∼500-1500), however, due to the non-constant delay in the gain control electronics.…”

Section: Introductionmentioning

confidence: 99%

A Wide Dynamic Range Laser Radar Receiver Based on Input Pulse-Shaping Techniques

Baharmast

Kurtti

Kostamovaara

2020

IEEE Trans. Circuits Syst. I

View full text Add to dashboard Cite

This paper presents a Time-of-Flight laser radar receiver based on pulse-shaping at the input to the receiver channel, in which the first zero-crossing point of the converted pulse is marked as the timing moment. In this technique, an LC resonator is combined with a nonlinear feedback TIA to achieve high accuracy and high precision within a wide dynamic range. The key advantage is that the receiver does not require any post compensation or gain control techniques so that the total complexity of the TOF radar is reduced considerably. Measurements made in a 0.35µm standard CMOS process show a bandwidth of 230M H z and an input-referred noise of 70n A RMS. The receiver chip consumes 155mW power from a 3.3V supply. The single-shot precision and accuracy of the receiver within a dynamic range of 1 : 50, 000 are ∼ 15mm(SN R = 12) and ∼ ±15mm respectively. A wider dynamic range can be achieved with a larger accuracy tolerance. The functionality of the proposed receiver channel is also verified over an input pulse variation and temperature range of 0 o C to 50 o C.

show abstract

“…A TIA is used in analogue signal processing when a current signal from a sensor is required in voltage form. Sensors are used in a wide range of applications and to set this paper in context, a number of these are listed as references in [1][2][3][4][5]. Various types of biosensors are available, depending on the method of signal acquisition.…”

Section: Introductionmentioning

confidence: 99%

Design of a low-current shunt-feedback transimpedance amplifier with inherent loop-stability

Mathew

Hart

Hayatleh

2019

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

In this paper we propose a new architecture for enhancing the performance of a transimpedance amplifier (TIA) used for low-currents, and in particular, that used in biosensing. It is usually the first block in biomedical acquisition systems for converting a current in the nanoampere and picoampere range into a proportional voltage, with an amplitude suitable for further processing. There exist two main amplifier topologies for achieving this, current-mode and shunt-feedback mode. This paper introduces a shuntfeedback amplifier that embodies current-mode operation and thereby offers the advantages of both existing schemes. A conventional shunt-feedback amplifier has a number of stages and requires compensation components to achieve stability of the feedback loop. The exemplary circuit described is inherently stable because a high gain is effectively achieved in one stage that has a dominant pole controlling the frequency response. Exhibiting complementary symmetry, the configuration has an input port that is very close to earth potential. This enables the configuration to handle bidirectional input signals such are as met with in electrochemical ampero-metric biosensors. For the 0.35µm process adopted and ±3.3V rail supplies, the power dissipation is 330µW. With a transimpedance gain of 120dBohm the incremental input and output resistances are less than 2ohm and the-3dB bandwidth for non-optical input currents is 8.2MHz. The input referred noise current is 3.5pA/√Hz.

show abstract

High Sensitivity and Wide Dynamic Range Analog Front-End Circuits for Pulsed TOF 4-D Imaging LADAR Receiver

Cited by 29 publications

References 19 publications

A novel TDC/ADC hybrid reconstruction ROIC for LiDAR

A novel TDC/ADC hybrid reconstruction ROIC for LiDAR

A Wide Dynamic Range Laser Radar Receiver Based on Input Pulse-Shaping Techniques

Design of a low-current shunt-feedback transimpedance amplifier with inherent loop-stability

Contact Info

Product

Resources

About