The Time Constant of an RC Circuit
... rises exponentially, while the voltage across - and hence the current through - the resistor will fall exponentially; see Figure 2. The quantity RC - which appears in the argument of the exponential - is known as the time constant of the system; it has units of time (hence the name), and determines ...
... rises exponentially, while the voltage across - and hence the current through - the resistor will fall exponentially; see Figure 2. The quantity RC - which appears in the argument of the exponential - is known as the time constant of the system; it has units of time (hence the name), and determines ...
MAX8836Z 1.2A PWM Step-Down Converter in General Description
... +160°C, thermal-shutdown circuitry turns off the IC, allowing it to cool. The IC turns on and begins soft-start after the junction temperature cools by 20°C. This results in a pulsed output during continuous thermaloverload conditions. ...
... +160°C, thermal-shutdown circuitry turns off the IC, allowing it to cool. The IC turns on and begins soft-start after the junction temperature cools by 20°C. This results in a pulsed output during continuous thermaloverload conditions. ...
here - WELopez.com
... 81. If an oscilloscopes TIME/DIV is set at .2 microseconds, and the width of the pulse measured is at 8 divisions on the scope graticule, what is the pulse width? A. .8 microseconds B. 1.6 microseconds C. 4 microseconds D. .4 microseconds 82. The coaxial cable leading to a cable TV is a 75 ohm trans ...
... 81. If an oscilloscopes TIME/DIV is set at .2 microseconds, and the width of the pulse measured is at 8 divisions on the scope graticule, what is the pulse width? A. .8 microseconds B. 1.6 microseconds C. 4 microseconds D. .4 microseconds 82. The coaxial cable leading to a cable TV is a 75 ohm trans ...
LM321 数据资料 dataSheet 下载
... Large differential input voltages can be easily accommodated and, as input differential voltage protection diodes are not needed, no large input currents result from large differential input voltages. The differential input voltage may be larger than V+ without damaging the device. Protection should ...
... Large differential input voltages can be easily accommodated and, as input differential voltage protection diodes are not needed, no large input currents result from large differential input voltages. The differential input voltage may be larger than V+ without damaging the device. Protection should ...
Synthesis of Input-Rectifierless AC/DC Converters
... power flow; • the two dc/dc converters should be separately controlled to achieve output regulation and input current shaping; • some power is being circulated between the two converters. Furthermore, some design constraints have been discussed, emanating from the limitation of the conversion ratios ...
... power flow; • the two dc/dc converters should be separately controlled to achieve output regulation and input current shaping; • some power is being circulated between the two converters. Furthermore, some design constraints have been discussed, emanating from the limitation of the conversion ratios ...
measurement of phase angles with the help of the cathode ray tube
... for this voltage drop is represented in fig. 8a. by the battery shown jn series with R. With.a given gridbias the correet position of the operating point is thus obtained only when the , gri~ current has a certain mean value -{g. The yalue "" of ig, h_oweve;r, depends closely upon the height' of the ...
... for this voltage drop is represented in fig. 8a. by the battery shown jn series with R. With.a given gridbias the correet position of the operating point is thus obtained only when the , gri~ current has a certain mean value -{g. The yalue "" of ig, h_oweve;r, depends closely upon the height' of the ...
ADS8481 - Texas Instruments
... Propagation delay time, BUSY falling edge to next RD (or CS for read cycle) falling ...
... Propagation delay time, BUSY falling edge to next RD (or CS for read cycle) falling ...
12-Bit, Voltage Output DIGITAL-TO
... The reference inputs, VREFL and VREFH, can be any voltage between VSS + 2.25V and VDD – 2.25V provided that VREFH is at least 1.25V greater than VREFL. The minimum output of each DAC is equal to VREFL plus a small offset voltage (essentially, the offset of the output op amp). The maximum output is e ...
... The reference inputs, VREFL and VREFH, can be any voltage between VSS + 2.25V and VDD – 2.25V provided that VREFH is at least 1.25V greater than VREFL. The minimum output of each DAC is equal to VREFL plus a small offset voltage (essentially, the offset of the output op amp). The maximum output is e ...
Lect 28 Example
... Voltage drop, due to Ia*(Ra+Rse) V_ra20 := Ia_27⋅ ( Rseries) V_ra20 = 4 V Find a triangle that has sides with voltage equal to voltage drop and current equal to If_se. Notice that the If_se extends from the Vt line, not the Ea line. In this case the triangle will have a plus sign, If_se since cumula ...
... Voltage drop, due to Ia*(Ra+Rse) V_ra20 := Ia_27⋅ ( Rseries) V_ra20 = 4 V Find a triangle that has sides with voltage equal to voltage drop and current equal to If_se. Notice that the If_se extends from the Vt line, not the Ea line. In this case the triangle will have a plus sign, If_se since cumula ...
TLV5624 数据资料 dataSheet 下载
... serial string containing 4 control and 8 data bits. The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The programmable settling time of the DAC allows the designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage reference, ...
... serial string containing 4 control and 8 data bits. The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The programmable settling time of the DAC allows the designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage reference, ...
LMC7111 Tiny CMOS Operational Amplifier with Rail-to
... makes the LMC7111 ideal for space and weight critical designs. The wide common-mode input range makes it easy to ...
... makes the LMC7111 ideal for space and weight critical designs. The wide common-mode input range makes it easy to ...
LMX2315
... LMX2315 and LMX2320 RF synthesizer at input frequencies of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide ratios are available in the 2.5 GHz LMX2325. Using a proprietary digital phase locked loop technique, the LMX2315/ 2320/2325’s linear phase detector characteristics can generate very st ...
... LMX2315 and LMX2320 RF synthesizer at input frequencies of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide ratios are available in the 2.5 GHz LMX2325. Using a proprietary digital phase locked loop technique, the LMX2315/ 2320/2325’s linear phase detector characteristics can generate very st ...
74LCX74 Low Voltage Dual D-Type PositiveEdge
... 74LCX74 Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop with 5V Tolerant Inputs ...
... 74LCX74 Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop with 5V Tolerant Inputs ...
ADS823, ADS826: 10-Bit, 60MHz Sampling Analog-To
... Using the OPA680 on a single +5V supply, its ideal commonmode point is at +2.5V, which coincides with the recommended common-mode input level for the ADS823 and ADS826, thus obviating the need of a coupling capacitor between the amplifier and the converter. Even though the OPA680 has an AC gain of + ...
... Using the OPA680 on a single +5V supply, its ideal commonmode point is at +2.5V, which coincides with the recommended common-mode input level for the ADS823 and ADS826, thus obviating the need of a coupling capacitor between the amplifier and the converter. Even though the OPA680 has an AC gain of + ...
ADS7816 数据资料 dataSheet 下载
... The reference current diminishes directly with both conversion rate and reference voltage. As the current from the reference is drawn on each bit decision, clocking the converter more quickly during a given conversion period will not reduce the overall current drain from the reference. The referenc ...
... The reference current diminishes directly with both conversion rate and reference voltage. As the current from the reference is drawn on each bit decision, clocking the converter more quickly during a given conversion period will not reduce the overall current drain from the reference. The referenc ...
MAX3864 2.5Gbps, +3V to +5.5V, Wide Dynamic Range Transimpedance Preamplifier General Description
... Supply voltage noise at the photodiode cathode produces a current I = CPD ΔV / Δt, which reduces the receiver sensitivity (C PD is the photodiode capacitance). The filter resistor of the MAX3864, combined with an external capacitor, can be used to reduce this noise (see the Typical Application Circu ...
... Supply voltage noise at the photodiode cathode produces a current I = CPD ΔV / Δt, which reduces the receiver sensitivity (C PD is the photodiode capacitance). The filter resistor of the MAX3864, combined with an external capacitor, can be used to reduce this noise (see the Typical Application Circu ...
AD8223 数据手册DataSheet 下载
... Figure 31 shows a simplified schematic of the AD8223. The AD8223 has three stages. In the first stage, the input signal is applied to PNP transistors. These PNP transistors act as voltage buffers and allow input voltages below ground. The second stage consists of a pair of 8 ...
... Figure 31 shows a simplified schematic of the AD8223. The AD8223 has three stages. In the first stage, the input signal is applied to PNP transistors. These PNP transistors act as voltage buffers and allow input voltages below ground. The second stage consists of a pair of 8 ...
LP2951JAN Series of Adjustable Micropower
... A 1.0μF (or greater) capacitor is required between the output and ground for stability at output voltages of 5V or more. At lower output voltages, more capacitance is required (2.2μF or more is recommended for 3V and 3.3V versions). Without this capacitor the part will oscillate. Most types of tanta ...
... A 1.0μF (or greater) capacitor is required between the output and ground for stability at output voltages of 5V or more. At lower output voltages, more capacitance is required (2.2μF or more is recommended for 3V and 3.3V versions). Without this capacitor the part will oscillate. Most types of tanta ...
... Switch S2 is again closed to reset the integrator output to 0V before the next integration period. This simple measurement arrangement is suited to many applications. There are, however, limitations to this basic approach. Input current continues to flow through S2 during the reset period. This leav ...
ADCLK948 数据手册DataSheet 下载
... ECL operation, the VCC power plane becomes the ground plane. It is also important to adequately bypass the input and output supplies. Place a 1 μF electrolytic bypass capacitor within several inches of each VCC power supply pin to the GND plane. In addition, place multiple high quality 0.001 μF bypa ...
... ECL operation, the VCC power plane becomes the ground plane. It is also important to adequately bypass the input and output supplies. Place a 1 μF electrolytic bypass capacitor within several inches of each VCC power supply pin to the GND plane. In addition, place multiple high quality 0.001 μF bypa ...
Integrating ADC
An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator. In its most basic implementation, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period (the run-up period). Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero (the run-down period). The input voltage is computed as a function of the reference voltage, the constant run-up time period, and the measured run-down time period. The run-down time measurement is usually made in units of the converter's clock, so longer integration times allow for higher resolutions. Likewise, the speed of the converter can be improved by sacrificing resolution.Converters of this type can achieve high resolution, but often do so at the expense of speed. For this reason, these converters are not found in audio or signal processing applications. Their use is typically limited to digital voltmeters and other instruments requiring highly accurate measurements.