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ADuM1411 英文数据手册DataSheet下载
ADuM1411 英文数据手册DataSheet下载

Analog Output Current Shunt and Voltage Instantaneous Power
Analog Output Current Shunt and Voltage Instantaneous Power

Technote 7 Using Op Amps Successfully
Technote 7 Using Op Amps Successfully

... connected to ground. First, this will likely violate the common mode input range for the device because there is no “headroom” to bias the input circuitry properly7. Second, this is an inverting amplifier. However, as the output cannot go below ground, it will only work when Vi is negative. Finally, ...
HI-3000 Rev. F - Holt Integrated Circuits
HI-3000 Rev. F - Holt Integrated Circuits

... 2. Junction Temperature TJ is defined as TJ = TAMB + P × Rth, where TAMB is the ambient or operating temperature, P is the power dissipation and Rth is a fixed thermal resistance value which depends on the package and circuit board mounting conditions. Stresses above those listed under "Absolute Max ...
LMK00105 Ultra-low Jitter LVCMOS Fanout Buffer/Level Translator
LMK00105 Ultra-low Jitter LVCMOS Fanout Buffer/Level Translator

DA4709 / DA4718
DA4709 / DA4718

... The IxR mode is a voltage mode with an additional factor to correct the speed under changing the load. The factor which is adjusted with the IxR potentiometer is only an approximate value. The speed regulation is good but not stable for all load conditions. It is a compromise between voltage mode an ...
FAN6791 / FAN6793 Highly Integrated, Dual-PWM Combination Controller FA N
FAN6791 / FAN6793 Highly Integrated, Dual-PWM Combination Controller FA N

... Voltage Feedback for Flyback PWM Stage. It is internally pulled HIGH through a 6.5kΩ resistor. An external opto-coupler from secondary feedback circuit is usually connected to this pin. ...
CDCM1802: Clock Buffer w/Programmable Divider, LVPECL I/O +
CDCM1802: Clock Buffer w/Programmable Divider, LVPECL I/O +

... Differential input clock. Input stage is sensitive and has a wide common mode range. Therefore, almost any type of differential signal can drive this input (LVPECL, LVDS, CML, HSTL). Since the input is high-impedance, it is recommended to terminate the PCB transmission line before the input (for exa ...
RE-ENGINEERING THE CRYBABY
RE-ENGINEERING THE CRYBABY

... After learning more and more about feedback, I feel that my analysis on the wah-wah pedal in the book ’Science of Electric Guitars and Guitar Electronics’ is not enough to explain how and why the ’original’ wah pedal works as it does. Although the analysis based on the Miller theorem is valid, it do ...
PLUS+1 Controller Family Technical Information
PLUS+1 Controller Family Technical Information

... Module analog input offset error can be 80 counts out of 4096 (12 bit A/D resolution). Therefore, the minimum voltage that a module will read at the most common 0 to 5.25 Vdc range is 105 mV. ...
Low Voltage circuit-breaker breaking techniques
Low Voltage circuit-breaker breaking techniques

... information in order to complement that given in product catalogues. Furthermore, these "Cahiers Techniques" are often considered as helpful "tools" for training courses. They provide knowledge on new technical and technological developments in the electrotechnical field and electronics. They also p ...
CMOS STATIC RAM 1 MEG (128K x 8-BIT)
CMOS STATIC RAM 1 MEG (128K x 8-BIT)

... 3. tWR is measured from the earlier of either CS1 or WE going HIGH or CS2 going LOW to the end of the write cycle. 4. During this period, I/O pins are in the output state, and input signals must not be applied. 5. If the CS1 LOW transition or the CS2 HIGH transition occurs simultaneously with or aft ...
LM3448 Phase Dimmable Offline LED Driver with
LM3448 Phase Dimmable Offline LED Driver with

... BLDR pin goes low. This provides the supply voltage to operate the LM3448. Resistor R5 is used to bleed charge out of any stray capacitance on the BLDR node and may be used to provide the necessary holding current for the dimmer when operating at light output currents. ...
QS10.121 - PULS Power Supply
QS10.121 - PULS Power Supply

... Note: The DC-ok feature requires that the output voltage reaches the nominal (=adjusted) level after turn-on in order to function according to specification. If this level cannot be achieved, the overload lamp will be on and the DC-ok contact will be open. The overload signal will only shut off as s ...
UCC2897A 数据资料 dataSheet 下载
UCC2897A 数据资料 dataSheet 下载

... by RON and ROFF. If the pulse width of the synchronization signal stays within these limits, the maximum operating duty ratio remains valid as defined by the ratio of RON and ROFF, and DMAX is the same in free running and in synchronized modes of operation. If the pulse width of the synchronization ...
AP3440 Description Pin Assignments
AP3440 Description Pin Assignments

... The RT/CLK pin of AP3440 is used to synchronize the converter with an external system clock referring to Figure 3. To implement the synchronization feature in a system, connect a square wave to the RT/CLK pin with an on-time of at least 75ns. When the clock is detected on the RT/CLK pin, a mode chan ...
MAX8729 Constant-Frequency, Half-Bridge CCFL Inverter Controller General Description
MAX8729 Constant-Frequency, Half-Bridge CCFL Inverter Controller General Description

... The MAX8729 cold-cathode-fluorescent lamp (CCFL) inverter controller is designed to drive multiple CCFLs using the half-bridge inverter consisting of two external n-channel power MOSFETs. The half-bridge topology minimizes the component count, while providing near sinusoidal drive waveforms. The MAX ...
TPS77033 数据资料 dataSheet 下载
TPS77033 数据资料 dataSheet 下载

LM5160A, LM5160 Wide Input 65-V, 2
LM5160A, LM5160 Wide Input 65-V, 2

... voltage regulation over the entire operating temperature range. The on-time varies inversely with input voltage resulting in nearly constant switching frequency. Peak and valley current limit circuits protect against overload conditions. The undervoltage lockout (EN/UVLO) circuit provides independen ...
CD74HCT4067-Q1 数据资料 dataSheet 下载
CD74HCT4067-Q1 数据资料 dataSheet 下载

DC Biasing using a S..
DC Biasing using a S..

... This suddenly seems like a lot of goals 3) Minimize Sensitivity to changes in β Manufacturing and temperature variances will result in significant changes in the value β . We seek to design the bias network such that the amplifier parameters will be insensitive to these changes. Q: You’re kidding me ...
MAX3738 155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control General Description
MAX3738 155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control General Description

... ERC, and safety circuitry. The circuit design is optimized for high-speed, low-voltage (+3.3V) operation (Figure 4). ...
Experiment Procedure
Experiment Procedure

IR3550 - Infineon
IR3550 - Infineon

... ambient temperature, and 8-layer PCB of 3.7” (L) x 2.6” (W). PWM controller loss and inductor loss are not included. 3. VIN=12V, VOUT=1.2V, ƒSW = 400kHz, L=150nH (0.29mΩ), VCC=7V, CIN=47uF x 4, COUT =470uF x3, no airflow, no heat sink, 25°C ambient temperature, and 8-layer PCB of 3.7” (L) x 2.6” (W) ...
BQ2057 数据资料 dataSheet 下载
BQ2057 数据资料 dataSheet 下载

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Wilson current mirror



A Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a ""mirrored"" current source or sink output at the output terminal. The mirrored current is a precise copy of the input current. It may be used as a Wilson current source by applying a constant bias current to the input branch as in Fig. 2. The circuit is named after George R. Wilson, an integrated circuit design engineer who worked for Tektronix. Wilson devised this configuration in 1967 when he and Barrie Gilbert challenged each other to find an improved current mirror overnight that would use only three transistors. Wilson won the challenge.
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