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公开(公告)号：US6081214A
公开(公告)日：2000-06-27
申请号：US39760
申请日：1998-03-16
CPC分类号： H03F3/45479 , H03M1/1028 , H03M1/167 , H03M1/76
摘要： An A/D conversion device includes: an amplifier AMP provided with regulating means controlled by a control signal OC or GC for adjusting the value of its output voltage V2, andan A/D converter ADC2 intended to convert the output voltage V2 of the amplifier AMP into digital signals.The device includes means S0 or MUX for setting the input of the amplifier AMP at a reference potential when a calibration signal CALOS or CALG is active, and at least a calibration arrangement DEC0 or DECM each havinga module comparing the output of the second converter ADC2 with a predetermined binary word,a module supplying the control signal OC or GC whose value depends on the result of said comparison, andmeans for storing the control signal OC or GC when the corresponding calibration signal CALOS or CALG is inactive.
摘要翻译： A / D转换装置包括：放大器AMP，其具有由用于调节其输出电压V2的值的控制信号OC或GC控制的调节装置;以及用于转换放大器的输出电压V2的A / D转换器ADC2 AMP进入数字信号。 器件包括用于当校准信号CALOS或CALG有效时将放大器AMP的输入设置为参考电位的装置S0或MUX，以及至少校准装置DEC0或DECM，每个具有比较第二转换器ADC2的输出的模块 具有预定的二进制字，提供其值取决于所述比较结果的控制信号OC或GC的模块以及当对应的校准信号CALOS或CALG无效时用于存储控制信号OC或GC的装置。
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公开(公告)号：US6069577A
公开(公告)日：2000-05-30
申请号：US39756
申请日：1998-03-16
CPC分类号： H03M1/1014 , H03M1/167
摘要： An A/D conversion device includes:an amplifier AMP receiving an input voltage V1 and supplying an output voltage V2, andan A/D converter ADC2 intended to convert the output voltage V2 of the amplifier AMP into a digital signal by comparing it with reference voltages generated by a resistance ladder R2 traversed by a bias current.The device includes a multiplexer MUX for setting the input of the amplifier AMP at a reference potential when a calibration signal CALG is active, and a calibration arrangement DECM which compares the output of the second converter ADC2 with a predetermined binary word, supplies a control signal GC, which depends on the result of said comparison and determines the value of the bias current, and stores the control signal GC when the calibration signal CALG is inactive.
摘要翻译： A / D转换装置包括：放大器AMP，其接收输入电压V1并提供输出电压V2;以及A / D转换器ADC2，其旨在通过将放大器AMP的输出电压V2与参考电压进行比较来将其转换为数字信号 由偏置电流穿过的电阻梯R2产生的电压。 该装置包括多路复用器MUX，用于当校准信号CALG有效时将放大器AMP的输入设置为参考电位，并且将第二转换器ADC2的输出与预定二进制字进行比较的校准装置DECM提供控制信号 GC，其取决于所述比较的结果并确定偏置电流的值，并且当校准信号CALG不活动时存储控制信号GC。
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公开(公告)号：US20110032648A1
公开(公告)日：2011-02-10
申请号：US12936637
申请日：2009-03-03
IPC分类号： H02H9/00
CPC分类号： H03K19/00315 , H01L27/0259
摘要： An electrostatic discharge protection structure (200) for an integrated circuit, the electrostatic discharge protection structure (200) comprising: a first silicon controlled rectifier structure (211) having a first triggering voltage, the first rectifier structure (211) being directly connected to an input (250) of the electrostatic discharge protection structure (200); a second silicon controlled rectifier structure (222) having a second triggering voltage lower than the first triggering voltage, the second rectifier structure (222) being connected to the input (250) via a resistor (221); and a secondary over-voltage protection unit (231) connected to the input (250) via the resistor (221).
摘要翻译： 一种用于集成电路的静电放电保护结构（200），所述静电放电保护结构（200）包括：具有第一触发电压的第一可控硅整流器结构（211），所述第一整流器结构（211）直接连接到 静电放电保护结构（200）的输入（250）; 第二可控整流器结构（222），具有低于第一触发电压的第二触发电压，第二整流器结构（222）经由电阻器（221）连接到输入端（250）; 以及经由电阻器（221）连接到输入（250）的次级过电压保护单元（231）。
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4.发明授权Digitally gain-controlled amplifying device, and camera using such a device 失效数字增益控制放大装置，以及使用这种装置的相机
公开(公告)号：US5923213A
公开(公告)日：1999-07-13
申请号：US890450
申请日：1997-07-09
CPC分类号： H03G1/0088
摘要： An amplifying device has a decibel gain that evolves quasi-linearly as a function of the digital value of a control word C(O:M-1). The device includes: an amplifying stage with K amplifiers having mutually different decibel gains, the gain in decibels of each amplifier being a multiple of the same value G0; a switching stage with K switches; a gain-controlled amplifier having a gain which varies between 0 and G0 as a function of the value of the N least significant bits (C(O:N-1)) of the control word received at its digital input; and a decoder receiving a digital word including the (M-N) most significant bits (C(N:M-1)) of the control word. The decoder has K logic outputs controlling the K switches.
摘要翻译： 放大器具有分贝增益，其作为控制字C（O：M-1）的数字值的函数被准线性地演变。 该装置包括：具有K个放大器的具有相互不同分贝增益的放大级，每个放大器的分贝增益是相同值G0的倍数; 具有K开关的开关级; 具有在0和G0之间变化的增益作为在其数字输入端接收的控制字的N个最低有效位（C（O：N-1））的值的函数的增益控制放大器; 以及解码器，接收包含控制字的（M-N）个最高有效位（C（N：M-1））的数字字。 解码器具有控制K开关的K逻辑输出。
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5.发明授权
公开(公告)号：US5917380A
公开(公告)日：1999-06-29
申请号：US873374
申请日：1997-06-12
CPC分类号： H03G3/001 , H03F3/45085 , H03G1/0088 , H03F2203/45356 , H03F2203/45392
摘要： The invention relates to a digitally gain-controlled amplifier including a transconductance stage provided with means for producing, at each of its N current outputs, a current (Itr) having a variable component which is representative of the analog input voltage. The amplifier also includes a switching stage comprising N switches each controlling the activation or deactivation of one of the N current outputs of the transconductance stage. Finally, the amplifier has a current/voltage conversion stage having one voltage output constituting the analog output of the amplifier and supplying a voltage which is representative of the currents received at its N current inputs.
摘要翻译： 本发明涉及一种数字增益控制放大器，其包括跨导级，该跨导级具有用于在其N个电流输出中的每一个产生具有代表模拟输入电压的可变分量的电流（Itr）的装置。 该放大器还包括一个包括N个开关的开关级，每个开关控制跨导级的N个电流输出之一的激活或去激活。 最后，放大器具有电流/电压转换级，其具有构成放大器的模拟输出的一个电压输出，并提供代表在其N个电流输入处接收的电流的电压。
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