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MEASURING SYSTEMS AND TOOLS
MEASURING SYSTEMS AND TOOLS

... applications. For example, transistors used for switching are designed and constructed differently from transistors used for amplifying signals. Because each electronic component is designed to operate satisfactorily for its particular application, any severe change in operating current (amperes), v ...
TGA2521-SM 数据资料DataSheet下载
TGA2521-SM 数据资料DataSheet下载

A DC Motor Controller Using The ZILOG Z86E06 MCU Application
A DC Motor Controller Using The ZILOG Z86E06 MCU Application

a CMOS, Low-Voltage, 3-Wire Serially-Controlled, Matrix Switches ADG738/ADG739
a CMOS, Low-Voltage, 3-Wire Serially-Controlled, Matrix Switches ADG738/ADG739

... parts also provide the user with more flexibility as to where their signal may be routed. Each bit of the 8-bit serial word corresponds to one switch of the part. A Logic 1 in the particular bit position turns on the switch, while a Logic 0 turns the switch off. Because each switch is independently ...
CD74HC4538-Q1 数据资料 dataSheet 下载
CD74HC4538-Q1 数据资料 dataSheet 下载

AN-6076 Design and Application Guide of Bootstrap Circuit for High
AN-6076 Design and Application Guide of Bootstrap Circuit for High

... and the resulting latch-up mechanism. ...
Thin Film Surface Resistivity
Thin Film Surface Resistivity

... Most surface resistivity measurements are made on semiconductor wafers or thin films on a small surface area substrate. Since the measurements are made on finite sized areas, correction factors have to be used based on the sample geometry. This correction factor depends on the sample thickness, edge ...
“2/3” divider
“2/3” divider

Voltage, energy and power in electric circuits
Voltage, energy and power in electric circuits

... wishes to make it clear that the Department and its agents accept no responsibility for the actual content of any materials suggested as information sources in this publication, whether these are in the form of printed publications or on a website. In these materials icons, logos, software products ...
Design and construction of an electronic gain
Design and construction of an electronic gain

... There are InallY' communication and electronic circuits, such as £11ters, phase-shifting networks, matching networks, voltage amplifiers with and without feedback, whose proper usage with associated equipment depends upon the knowledge of the variation with frequency of the voltage ratio and phase a ...
Optical Position Sensors with Applications in Servo Feedback
Optical Position Sensors with Applications in Servo Feedback

... is what creates the sound. The speaker cone is attached to the voice coil, which has wires wound all around it through which runs the electrical current that the speaker receives from the amplifier. Surrounding the voice coil on the inside and outside is a magnet, with the portion of the magnet insi ...
A Torsional Balance that Resolves Sub-micro
A Torsional Balance that Resolves Sub-micro

Flight Computer Carrier Board Capstone
Flight Computer Carrier Board Capstone

... too big and fragile for the LV2. So, the need for a smaller, more robust , compatible with the TQM5200 but yet fully loaded carrier board is the goal of this design project. The fc-carrier is designed to address the needs for a smaller, robust, more compact but yet fully featured flight computer car ...
Four White LED Backlight Driver ADM8843  FEATURES
Four White LED Backlight Driver ADM8843 FEATURES

... with VCC input voltages as low as 2.6 V. It also includes regulation of the charge pump output voltage for supply voltages up to 5.5 V. The ADM8843’s four LEDs are arranged into two groups, main and sub. The main display can have up to three LEDs (FB1 to FB3), and the sub display has one LED (FB4) ( ...
AD5062 数据手册DataSheet 下载
AD5062 数据手册DataSheet 下载

... Ground Input to the DAC. Level-Triggered Control Input (Active Low). This is the frame synchronization signal for the input data. When SYNC goes low, it enables the input shift register, and data is transferred in on the falling edges of the following clocks. The DAC is updated following the 24th cl ...
3.0-V TO 20-V PMBus SYNCHRONOUS BUCK CONTROLLER TPS40400 FEATURES APPLICATIONS
3.0-V TO 20-V PMBus SYNCHRONOUS BUCK CONTROLLER TPS40400 FEATURES APPLICATIONS

... overcurrent condition persists for more than 7 clock cycles of the converter, a fault condition is declared and the converter shuts down and goes into either a hiccup restart mode or latches off. The behavior is selectable though the PMBus interface. Other PMBus interface features include programmab ...
Physics Laboratory Manual PHYC 10190 2011-2012
Physics Laboratory Manual PHYC 10190 2011-2012

... Some of the experiments in the manual may appear similar to those at school, but the emphasis and expectations are likely to be different. Do not treat this manual as a ‘cooking recipe’ where you follow a prescription. Instead, understand what it is you are doing, why you are asked to plot certain q ...
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MAX4291/MAX4292/MAX4294 Ultra-Small, 1.8V, µPower, Rail-to-Rail I/O Op Amps General Description
MAX4291/MAX4292/MAX4294 Ultra-Small, 1.8V, µPower, Rail-to-Rail I/O Op Amps General Description

... capacitance) creates a parasitic pole that produces an underdamped signal response. Reducing input capacitance or placing a small capacitor across the feedback resistor improves response in this case. The MAX4291/MAX4292/MAX4294 family’s inputs are protected from large differential input voltages by ...
MT-060 TUTORIAL  Choosing Between Voltage Feedback (VFB)
MT-060 TUTORIAL Choosing Between Voltage Feedback (VFB)

... The best way to make the noise calculations is to write a simple computer spreadsheet program that performs the calculations automatically, and include all the noise sources. The equation discussed in Tutorial MT-049 can be used for this purpose. ‹ VFB Op Amps z Low voltage noise ( < 1 nV/√Hz) avail ...
SN74LVC1G126-EP 数据资料 dataSheet 下载
SN74LVC1G126-EP 数据资料 dataSheet 下载

... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
74CBTLVD3245 1. General description 8-bit level-shifting bus switch with output enable
74CBTLVD3245 1. General description 8-bit level-shifting bus switch with output enable

... The 74CBTLVD3245 is an 8-pole, single-throw bus switch. The device features a single output enable input (OE) that controls eight switch channels. The switches are disabled when OE is HIGH. Schmitt trigger action at control inputs makes the circuit tolerant of slower input rise and fall times. This ...
POL- SiP - Renesas e-Learning
POL- SiP - Renesas e-Learning

BD00HC5MEFJ-M
BD00HC5MEFJ-M

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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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