公开(公告)号：US20140361915A1

公开(公告)日：2014-12-11

申请号：US14294300

申请日：2014-06-03

Applicant: STMicroelectronics SA ,  STMicroelectronics International N.V.

Inventor： Stéphane LE TUAL ,  Pratap Narayan SINGH

IPC: H03M1/08 ,  H03K3/013

CPC classification number: H03M1/08 ,  G11C27/024 ,  G11C27/026 ,  H03K3/013 ,  H03K19/018528

Abstract: The invention concerns a circuit comprising: a first transistor (202) having a first main current node coupled to a first voltage signal (CNVDD), a control node coupled to a second voltage signal (CPVDD) and a second main current node coupled to an output node (206) of the circuit; a second transistor (204) having a first main current node coupled to a third voltage signal (CPGND), a control node coupled to a fourth voltage signal (CPGND) and a second main current node coupled to said output node of the circuit; and circuitry (210, 212) adapted to generate said first, second, third and fourth voltage signals based on a pair of differential input signals (CP, CN), wherein said first and second voltage signals are both referenced to a first supply voltage (VDD) and wherein said third and fourth voltage signals are both referenced to a second supply voltage (GND).

Abstract translation: 本发明涉及一种电路，包括：具有耦合到第一电压信号（CNVDD）的第一主电流节点的第一晶体管（202），耦合到第二电压信号（CPVDD）的控制节点和耦合到第一电流信号 输出节点（206）; 第二晶体管（204），其具有耦合到第三电压信号（CPGND）的第一主电流节点，耦合到第四电压信号（CPGND）的控制节点和耦合到所述电路的所述输出节点的第二主电流节点; 以及适于基于一对差分输入信号（CP，CN）产生所述第一，第二，第三和第四电压信号的电路（210,212），其中所述第一和第二电压信号都参考第一电源电压 VDD），并且其中所述第三和第四电压信号都参考第二电源电压（GND）。

公开(公告)号：US20150280728A1

公开(公告)日：2015-10-01

申请号：US14230370

申请日：2014-03-31

Applicant: STMicroelectronics International N.V.

Inventor： Pratap Narayan SINGH ,  Ashish Sharma KUMAR ,  Chandrajit DEBNATH ,  Rakesh MALIK

IPC: H03M1/46 ,  H03M1/12

CPC classification number: H03M1/125 ,  H03M1/00 ,  H03M1/0612 ,  H03M1/069 ,  H03M1/0695 ,  H03M1/12 ,  H03M1/46 ,  H03M1/462

Abstract: An asynchronous SAR ADC to convert an analog signal into a series of digital pulses in an efficient, low power manner. In synchronous SAR ADC circuits, a separate and cumbersome clock signal is used to trigger the internal circuitry of the SAR ADC. Instead of triggering the components of the SAR DAC synchronously with a clock signal, the asynchronous solution uses its own internal signals to trigger its components in an asynchronous cyclic manner. Further, in order to increase efficiency and guard against circuit failures due to difficulties arising from transient signals, the asynchronous SAR ADC may also include a delay circuit for introducing a variable delay to the SAR ADC cycle.

Abstract translation: 异步SAR ADC，以高效，低功耗的方式将模拟信号转换为一系列数字脉冲。 在同步SAR ADC电路中，单独和繁琐的时钟信号用于触发SAR ADC的内部电路。 异步解决方案不是以时钟信号同步触发SAR DAC的组件，而是以其自身的内部信号以异步循环方式触发其组件。 此外，为了提高效率并防止由于瞬态信号引起的困难而导致的电路故障，异步SAR ADC还可以包括用于将可变延迟引入SAR ADC周期的延迟电路。

公开(公告)号：US20140361914A1

公开(公告)日：2014-12-11

申请号：US14293119

申请日：2014-06-02

Applicant: STMicroelectronics SA ,  STMicroelectronics International N.V.,

Inventor： Pratap Narayan SINGH ,  Stéphane LE TUAL

IPC: H03K17/22 ,  H03M1/12

CPC classification number: H03K17/223 ,  H03K17/145 ,  H03K17/687 ,  H03K2217/0018 ,  H03M1/12

Abstract: The invention concerns a circuit comprising: a first transistor (102) having first and second main current nodes, and a gate node adapted to receive a first timing signal (CLK) for causing the first transistor to transition between conducting and non-conducting states; a biasing circuit (108) coupled to a further node of said first transistor; and a control circuit (110) adapted to control said biasing circuit to apply a first control voltage (VCTRL) to said further node to adjust the timing of at least one of said transitions.

Abstract translation: 本发明涉及一种电路，包括：具有第一和第二主电流节点的第一晶体管（102）和适于接收用于使第一晶体管在导通状态与非导通状态之间转变的第一定时信号（CLK）的栅极节点; 偏置电路（108），耦合到所述第一晶体管的另一节点; 以及适于控制所述偏置电路以对所述另一节点施加第一控制电压（VCTRL）以调整至少一个所述转换的定时的控制电路（110）。