Integrated zener-zap nonvolatile memory cell with programming and
pretest capability
    2.
    发明授权
    Integrated zener-zap nonvolatile memory cell with programming and pretest capability 失效
    集成的齐纳瓦非易失性存储器单元,具有编程和预测试功能

    公开(公告)号:US5572472A

    公开(公告)日:1996-11-05

    申请号:US421774

    申请日:1995-04-14

    IPC分类号: G11C17/18 G11C29/04 G11C29/00

    CPC分类号: G11C17/18 G11C29/04

    摘要: A "zener-zap" memory cell with pretest capability for testing effects that would be realized from permanently programming the memory cell is provided. The memory cell is addressable and provides a binary signal at an output. The memory cell uses a zener diode as a memory element which is permanently programmed when selectively coupled to a programming voltage which exceeds the reverse breakdown voltage of the zener diode. The memory cell has a test circuit for generating the programmed binary signal at the output of the memory cell prior to permanently programming the zener diode and when coupled to a pretest voltage.

    摘要翻译: 提供了具有预测试功能的“齐纳比”存储器单元,用于测试由永久编程存储器单元实现的效果。 存储单元可寻址,并在输出端提供二进制信号。 存储器单元使用齐纳二极管作为存储元件,当被选择性地耦合到超过齐纳二极管的反向击穿电压的编程电压时,其被永久编程。 存储单元具有测试电路,用于在永久地编程齐纳二极管之前和当耦合到预测试电压时,在存储器单元的输出处产生编程的二进制信号。

    Stackable voltage comparator circuit for a multiple voltage window
detector
    3.
    发明授权
    Stackable voltage comparator circuit for a multiple voltage window detector 失效
    用于多电压窗口检测器的可堆叠电压比较器电路

    公开(公告)号:US5532627A

    公开(公告)日:1996-07-02

    申请号:US422433

    申请日:1995-04-14

    IPC分类号: H03K5/24 H03K5/153

    CPC分类号: H03K5/2418

    摘要: A stackable voltage comparator circuit that may be used in an analog voltage address decoder circuit for performing voltage window comparisons. The voltage comparator circuit includes a plurality of voltage comparator circuit cells, each of which includes a differential input stage made up of a pair of transistors which receives a current source. A first comparator circuit cell includes a differential input pair of transistors with one of the transistors having a first collector and a second collector, with the second collector being coupled to an output line. The first comparator circuit cell compares an input window with a first threshold voltage and produces an output at the output line. A second comparator circuit cell compares the input voltage with a second threshold voltage and includes a second differential input pair of transistors. The second comparator circuit cell has an input coupled to the output line of the first comparator circuit for receiving current when the input voltage is less than the first threshold voltage and provides an output indicative of whether the input voltage is within a voltage window bounded by the first and second threshold voltages.

    摘要翻译: 可以在用于执行电压窗口比较的模拟电压地址解码器电路中使用的可堆叠电压比较器电路。 电压比较器电路包括多个电压比较器电路单元,每个电压单元包括由接收电流源的一对晶体管构成的差分输入级。 第一比较器电路单元包括差分输入对晶体管,其中一个晶体管具有第一集电极和第二集电极,其中第二集电极耦合到输出线。 第一比较器电路单元将输入窗口与第一阈值电压进行比较,并在输出线处产生输出。 第二比较器电路单元将输入电压与第二阈值电压进行比较,并且包括第二差分输入对晶体管。 第二比较器电路单元具有耦合到第一比较器电路的输出线的输入端,用于当输入电压小于第一阈值电压时接收电流,并提供指示输入电压是否在由 第一和第二阈值电压。

    Temperature dependent voltage generator with binary adjustable null
voltage
    4.
    发明授权
    Temperature dependent voltage generator with binary adjustable null voltage 失效
    具有二进制可调零电压的温度相关电压发生器

    公开(公告)号:US5619122A

    公开(公告)日:1997-04-08

    申请号:US422341

    申请日:1995-04-14

    摘要: In accordance with the teachings of the present invention, a temperature dependent voltage generator circuit is provided for generating an output voltage that changes proportionally with changes in the operating temperature of the temperature dependent voltage generator circuit. The temperature dependent voltage generator circuit includes binary weighted current sources and electronic switches that are selectively closed in order to produce a binary weighted current. The binary weighted current is adjustable such that the output voltage of the temperature dependent voltage generator circuit may be "nulled" or forced to zero at any given operating temperature.

    摘要翻译: 根据本发明的教导,提供了一种依赖于温度的电压发生器电路,用于产生与温度相关的电压发生器电路的工作温度的变化成比例地变化的输出电压。 温度相关电压发生器电路包括二进制加权电流源和选择性闭合的电子开关,以产生二进制加权电流。 二进制加权电流是可调节的,使得温度相关电压发生器电路的输出电压在任何给定的工作温度下可能被“零”或强制为零。

    Programmable transducer amplifier circuit
    5.
    发明授权
    Programmable transducer amplifier circuit 失效
    可编程传感器放大器电路

    公开(公告)号:US5534816A

    公开(公告)日:1996-07-09

    申请号:US421956

    申请日:1995-04-14

    摘要: In accordance with the teachings of the present invention, a programmable integrated transducer amplifier circuit is provided which receives differential outputs from a transducer, such as a pressure or accelerometer transducer. The programmable integrated transducer amplifier circuit includes binary adjustable circuits that are programmed in response to binary coded signals. The binary adjustable circuits generate binary weighted currents that are employed to adjust the operating characteristics of the amplifier circuit. The binary coded signals are received from a programmable memory array which includes a plurality of memory cells that store binary information. Each of the memory cells are programmed when coupled to a programming signal. Additionally, the memory array has pretest capability for testing outputs of the memory cells prior to permanently programming the respective memory cells. Additionally, the integrated transducer amplifier circuit automatically compensates for variations in the operating temperature of the amplifier circuit. The method of temperature compensation is accomplished by operating the programmable integrated transducer amplifier circuit at a first temperature such that a temperature compensation voltage is "nulled" or is forced to equal zero. Thereafter, the integrated transducer amplifier circuit is operated at other temperatures such that the temperature compensation voltage is generated in a manner representing the difference between the first operating temperatures and the current operating temperature.

    摘要翻译: 根据本发明的教导,提供了可编程集成换能器放大器电路,其接收来自诸如压力传感器或加速度计换能器的换能器的差分输出。 可编程集成传感器放大器电路包括响应于二进制编码信号编程的二进制可调电路。 二进制可调电路产生二进制加权电流,用于调整放大器电路的工作特性。 从包括存储二进制信息的多个存储器单元的可编程存储器阵列接收二进制编码信号。 当耦合到编程信号时,每个存储器单元被编程。 此外,存储器阵列具有用于在对各个存储单元进行永久编程之前测试存储器单元的输出的预测试能力。 此外,集成的换能器放大器电路自动补偿放大器电路的工作温度变化。 温度补偿的方法是通过在第一温度下操作可编程的积分换能器放大器电路来实现的,使得温度补偿电压被“零”或被迫等于零。 此后,集成的换能器放大器电路在其它温度下工作,使得以表示第一工作温度和当前工作温度之间的差异的方式产生温度补偿电压。

    Temperature compensated voltage generator
    7.
    发明授权
    Temperature compensated voltage generator 失效
    温度补偿电压发生器

    公开(公告)号:US4883992A

    公开(公告)日:1989-11-28

    申请号:US240279

    申请日:1988-09-06

    CPC分类号: G01D3/0365 G01L9/065

    摘要: A temperature compensation circuit for a device with a voltage output affected by temperature in a predetermined manner and a null output for which the voltage is zero regardless of temperature comprises a voltage to current converter responsive to the generated voltage to produce a proportional current, a current generator comprising elements responsive to the temperature of the device to generate a pair of compensation currents varying therewith in a predetermined manner so that the ratio of the compensation currents embodies a desired temperature compensation, and a transconductance multiplier effective to multiply the proportional current by the ratio of the compensation currents to generate a compensated output current. It may further comprise a current to voltage converter responsive to the compensated output current to produce a compensated output voltage.

    Differential voltage to current converter
    8.
    发明授权
    Differential voltage to current converter 失效
    差分电压电流转换器

    公开(公告)号:US4866312A

    公开(公告)日:1989-09-12

    申请号:US240699

    申请日:1988-09-06

    IPC分类号: H03F3/45

    摘要: A bipolar integrated circuit differential voltage to current converter comprises a current source and a current sink at a lower current with two parallel branches connected therebetween. Each branch comprises, from the current source, a resistor, an input transistor with an emitter connected to the resistor and a mirror transistor with an emitter connected to the current sink. The resistors have equal resistance; the input transistors have bases comprising a differential voltage input; and the mirror transistors are connected in a current mirror arrangement. An output current is taken from the junction the resistor and the emitter of the input transistor connected thereto on the output side of the mirror so as to allow the current mirror to maintain equal currents and thus equal base/emitter voltages in the input transistors. A demand current sink transistor is connected in series with the current source with a base connected to the current sink so as to take excess current from the current source not taken by the current sink and current output and thus maintain the currents through the input transistors low for minimal input loading.

    摘要翻译: 双极集成电路差分电压到电流转换器包括在较低电流下的电流源和电流吸收器,其间连接有两个并联支路。 每个分支包括来自电流源的电阻器,具有连接到电阻器的发射极的输入晶体管和具有连接到电流吸收器的发射极的反射镜晶体管。 电阻器具有相等的电阻; 所述输入晶体管具有包括差分电压输入的基极; 并且反射镜晶体管以电流镜布置连接。 输出电流取自反射镜输出侧连接的输入晶体管的电阻和发射极,从而允许电流镜保持相等的电流,从而在输入晶体管中保持相等的基极/发射极电压。 需求电流宿晶体管与电流源串联连接,其基极连接到电流吸收器,以便从电流源获取不占用电流源和电流输出的过剩电流,从而保持通过输入晶体管的电流低 为最小输入负载。

    Self-regulating band-gap voltage regulator
    9.
    发明授权
    Self-regulating band-gap voltage regulator 失效
    自调节带隙稳压器

    公开(公告)号:US5430367A

    公开(公告)日:1995-07-04

    申请号:US6290

    申请日:1993-01-19

    IPC分类号: G05F3/30 G05F3/16

    CPC分类号: G05F3/30 Y10S323/907

    摘要: A band-gap voltage regulator having a self-regulating characteristic which improves the operation of the regulator includes a feedback circuit coupling a gain stage of the regulator to a voltage reference circuit which influences the regulated voltage. Changes in the operation of the gain stage which would otherwise change the regulated voltage produce counteracting changes in the voltage reference circuit, causing the supply voltage to remain substantially constant.

    摘要翻译: 具有改善调节器操作的自调节特性的带隙电压调节器包括将调节器的增益级耦合到影响调节电压的电压参考电路的反馈电路。 否则将改变调节电压的增益级的操作的变化产生电压参考电路的抵消变化,导致电源电压保持基本恒定。

    Operational amplifier circuit
    10.
    发明授权
    Operational amplifier circuit 失效
    运算放大器电路

    公开(公告)号:US4463319A

    公开(公告)日:1984-07-31

    申请号:US404580

    申请日:1982-08-02

    申请人: Mark B. Kearney

    发明人: Mark B. Kearney

    IPC分类号: H03F3/30 H03F3/45

    摘要: An operational amplifier includes a PNP differential amplifier operable for low common mode input voltages and an NPN differential amplifier operable for high common mode input voltages so that the operational amplifier is operable over a range of common mode input voltages that includes substantially the positive and negative supply voltages.

    摘要翻译: 运算放大器包括可用于低共模输入电压的PNP差分放大器和可操作用于高共模输入电压的NPN差分放大器,使得运算放大器可在大体上包括正和负电源的共模输入电压范围内工作 电压。