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microK Manual
microK Manual

... Thermistors). They are based on a completely new measurement technology, unique to these products, that provides better accuracy and lower noise than comparables technologies (see section 6). They are also the first instruments of their type to be completely solid-state, making them highly reliable. ...
TAS5342A 数据资料 dataSheet 下载
TAS5342A 数据资料 dataSheet 下载

... noise, and low idle current. The TAS5342A has a complete protection system integrated on-chip, safeguarding the device against a wide range of fault conditions that could damage the system. These protection features are short-circuit protection, over-current protection, under voltage protection, ove ...
Phase-Locked Loop MC74HC4046A
Phase-Locked Loop MC74HC4046A

$doc.title

... the VCO is seen; the output of the phase comparator goes low. This discharges the loop filter until the leading edge of the SIGIN is detected at which time the output disables itself again. This has the effect of slowing down the VCO to again make the rising edges of both waveforms coincidental. Whe ...
User Manual
User Manual

... our appointed distributors - we have extensive experience of thermometry and can provide advice and equipment to help you. Retain these instructions. Use only as specified in these operating instructions or the intrinsic protection may be impaired. Please observe the following safety precautions:  ...
74HC423 - Nexperia
74HC423 - Nexperia

AN-1118 APPLICATION NOTE
AN-1118 APPLICATION NOTE

... convenient to match the output to Channel A. Matching these channels results in easier computations because one bit in the energy register and one pulse on the CF output has the same weight on each channel. It is recommended that channel matching be performed as the first calibration step. To match ...
Low-Power, Low-Noise, 24-Bit, Analog-to-Digital Converter
Low-Power, Low-Noise, 24-Bit, Analog-to-Digital Converter

Si5345/44/42 - Silicon Labs
Si5345/44/42 - Silicon Labs

18-Bit - Multi-Channel Delta-Sigma Analog-to
18-Bit - Multi-Channel Delta-Sigma Analog-to

... weak input signal with high resolution. The MCP3422/3/4 devices have two conversion modes: (a) One-Shot Conversion mode and (b) Continuous Conversion mode. In One-Shot conversion mode, the device performs a single conversion and enters a low current standby mode automatically until it receives anoth ...
Transistor Odds and Ends
Transistor Odds and Ends

AN 366: Understanding I/O Output Timing for Altera Devices
AN 366: Understanding I/O Output Timing for Altera Devices

... In configuration 1, set up a simulation with the output buffer and the default load. Note the time delay from the output to the VM, or the measured voltage point, typically 50% of the output signal swing. Refer to this value as tOUT_DEFAULT, as shown in Figure 4. The reference load values and the VM ...
MAX5486 Stereo Volume Control with Pushbutton Interface General Description
MAX5486 Stereo Volume Control with Pushbutton Interface General Description

... feature provides a wiper-changing rate at 4Hz for holding the control input low for more than 250ms and at 8Hz after 500ms and then at 11Hz after 1000ms (see Table 2). All of the MAX5486’s pushbutton inputs are debounced. The mute input allows a single pushbutton to change between volume control and ...
62-0306—04 - Class 200 3-Phase kWh Meter
62-0306—04 - Class 200 3-Phase kWh Meter

... by the current rating (amperage) of the Class 200 meter. For example, a 200 Amp meter must use extra sets of 200 Amp current sensors. All locations being monitored must have the same power source. A 480 Volt meter cannot monitor a 208V load nor can a meter monitor two 480 or 208 Volt loads if they a ...
Design of a 14-bit fully differential discrete time delta
Design of a 14-bit fully differential discrete time delta

302 User Guide and Technical Information
302 User Guide and Technical Information

... The 302 input limiters act solely as “safety” limiters, and are enabled when the output limiters are enabled with the front-panel “LIM” switch. See Setup Menu to defeat Input Limiters entirely. In normal operation with properly set input levels, the threshold of the input limiter will rarely be reac ...
DC/DC converter testing with Fast Load Transient
DC/DC converter testing with Fast Load Transient

... occur, which is transferred to the converter output and looks like control loop instability. 3. Slope compensation issues: Current mode converters use slope compensation to avoid sub-harmonic oscillation in high duty-cycle applications. For slope compensation to work well, a specific amount of induc ...
Lecture 22: Multistage Amps - University of California, Berkeley
Lecture 22: Multistage Amps - University of California, Berkeley

... M1 and M2 have the same VGS If we neglect CLM (λ=0), then the drain currents are equal Since λ is small, the currents will nearly mirror one another even if Vout is not equal to VGS1 We say that the current IREF is mirrored into iOUT Notice that the mirror works for small and large signals! Universi ...
A  MEMS-Based,  High-Resolution Electric-Field  Meter
A MEMS-Based, High-Resolution Electric-Field Meter

Manual.
Manual.

... The scope and the display parameters (CH1 Volt/div, CH2 Volt/div, time base Sec/div, Trigger Channel, Trigger rise/fall, Trigger Level) appear on the bottom of the screen. The Up and Down arrow keys highlight one of the fields below. The required field can be selected by touching it and can be chang ...
Presentation - KPB INTRA sro
Presentation - KPB INTRA sro

ADM1276 数据手册DataSheet 下载
ADM1276 数据手册DataSheet 下载

... limit of 20 mV is set, but this limit can be adjusted, if required, using a resistor divider network from the internal reference voltage to the ISET pin. The ADM1276 limits the current through the sense resistor by controlling the gate voltage of an external N-channel FET in the power path, via the ...
description - KevinChant.com
description - KevinChant.com

... rectified by one half of a type 6AL5 valve (V2) and applied to the bridge (V3). Providing no readings are being taken, and the circuit has been previously balanced by adjustment to the balance resistor (R25), the cathode currents of the two triode sections of the valve (V3) are equal, and the microa ...
Channel-length and gate-bias dependence of contact resistance
Channel-length and gate-bias dependence of contact resistance

electrical system component repair
electrical system component repair

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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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