front-end electronics for fast in vitro biological measurements
... Keywords: binary sequence, bioimpedance, electrochemical impedance spectroscopy, retinal pigment epithelium Epithelium forms tight membranes that efficiently take part in secretion and absorption between the two lining tissues. A tight membrane of this nature has a low DC conductivity and this is ge ...
... Keywords: binary sequence, bioimpedance, electrochemical impedance spectroscopy, retinal pigment epithelium Epithelium forms tight membranes that efficiently take part in secretion and absorption between the two lining tissues. A tight membrane of this nature has a low DC conductivity and this is ge ...
Advanced Control Systems (ACS) - Dr. Imtiaz Hussain
... • is the emission coefficient for the diode. It is determined by the way the diode is constructed. It somewhat varies with diode current. For a silicon diode is around 2 for low currents and goes down to about 1 at higher currents ...
... • is the emission coefficient for the diode. It is determined by the way the diode is constructed. It somewhat varies with diode current. For a silicon diode is around 2 for low currents and goes down to about 1 at higher currents ...
FAN41501 Ground Fault Interrupter Self-Test Digital Controller
... functionality of the controller, R1, D1, D2-5 , sense coil, and SCR without opening the load contacts. The load contacts do not open during this test because D1 is reversed biased, which prevents current from energizing the solenoid. Once the FAN41501 detects the triggering of the SCR, the current p ...
... functionality of the controller, R1, D1, D2-5 , sense coil, and SCR without opening the load contacts. The load contacts do not open during this test because D1 is reversed biased, which prevents current from energizing the solenoid. Once the FAN41501 detects the triggering of the SCR, the current p ...
Unit 3 review - SD43 Teacher Sites
... so they repel each other. When the rod is pulled away, the leaves will move back to their original position as the electrons move back to an even distribution within the electroscope. b) No. Electrons would move from the bulb to the leaves since they would be repelled by the negative charge of the r ...
... so they repel each other. When the rod is pulled away, the leaves will move back to their original position as the electrons move back to an even distribution within the electroscope. b) No. Electrons would move from the bulb to the leaves since they would be repelled by the negative charge of the r ...
Charge Pump Driver for LCD White LED Backlights ADM8845
... An external resistor, RSET, is connected between the ISET pin and GND. This resistor sets up a reference current, ISET, which is internally gained up by 120 within the ADM8845 to produce the ILED currents of up to 30 mA/LED (ILED = ISET × 120 and ISET = 1.18 V/RSET). The ADM8845 uses six individual ...
... An external resistor, RSET, is connected between the ISET pin and GND. This resistor sets up a reference current, ISET, which is internally gained up by 120 within the ADM8845 to produce the ILED currents of up to 30 mA/LED (ILED = ISET × 120 and ISET = 1.18 V/RSET). The ADM8845 uses six individual ...
Exam 2
... and U denote stored energy. Of these quantities, capacitors in parallel must have the same: a. Q only b. Q & U only c. U only d. V & U only e. V only 18. Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true? a. There is more charge stored ...
... and U denote stored energy. Of these quantities, capacitors in parallel must have the same: a. Q only b. Q & U only c. U only d. V & U only e. V only 18. Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true? a. There is more charge stored ...
MAX1870A Step-Up/Step-Down Li+ Battery Charger General Description
... Step-Up/Step-Down Li+ Battery Charger (Circuit of Figure 2, VDCIN = VCSSP = VCSSN = VCSSS = VVHP = 18V, VBATT = VCSIP = VCSIN = VBLKP = 12V, VREFIN = 3.0V, VICTL = 0.75 x VREFIN, VCTL = LDO, CELLS = FLOAT, GND = PGND = 0, VDLOV = 5.4V, TA = 0°C to +85°C, unless otherwise noted. Typical values are a ...
... Step-Up/Step-Down Li+ Battery Charger (Circuit of Figure 2, VDCIN = VCSSP = VCSSN = VCSSS = VVHP = 18V, VBATT = VCSIP = VCSIN = VBLKP = 12V, VREFIN = 3.0V, VICTL = 0.75 x VREFIN, VCTL = LDO, CELLS = FLOAT, GND = PGND = 0, VDLOV = 5.4V, TA = 0°C to +85°C, unless otherwise noted. Typical values are a ...
60VIN, 3A Synchronous Buck Regulator
... Supply voltage for the internal LDO. The VIN operating voltage range is from 4.6V to 60V. A ceramic capacitor from VIN to AGND is required for decoupling. The decoupling capacitor should be placed as close as possible to the supply pin. ...
... Supply voltage for the internal LDO. The VIN operating voltage range is from 4.6V to 60V. A ceramic capacitor from VIN to AGND is required for decoupling. The decoupling capacitor should be placed as close as possible to the supply pin. ...
10.7 Gbps Active Back-Termination, Differential Laser Diode Driver ADN2525
... provides excellent matching with the output transmission lines while reducing the power dissipation in the output stage. The back-termination in the ADN2525 absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality to be achieved even when ...
... provides excellent matching with the output transmission lines while reducing the power dissipation in the output stage. The back-termination in the ADN2525 absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality to be achieved even when ...
from the sales partner portal or fluke web site
... Improved measurement speed (less self heating) Little phase shift for calibration of power quality instruments (like the Fluke 6100A) ...
... Improved measurement speed (less self heating) Little phase shift for calibration of power quality instruments (like the Fluke 6100A) ...
LP2980-N Micropower 50-mA Ultra-Low
... Minimum and maximum limits are ensured through test, design, or statistical correlation over the junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Limits ar ...
... Minimum and maximum limits are ensured through test, design, or statistical correlation over the junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Limits ar ...
TPS92691/-Q1 Multi-Topology LED Driver With
... LED current can be independently modulated using either analog or PWM dimming techniques. Linear analog dimming response with 15:1 range is obtained by varying the voltage from 140 mV to 2.25 V across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by modulating ...
... LED current can be independently modulated using either analog or PWM dimming techniques. Linear analog dimming response with 15:1 range is obtained by varying the voltage from 140 mV to 2.25 V across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by modulating ...
BQ24620 数据资料 dataSheet 下载
... only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GND if not sp ...
... only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GND if not sp ...
LTC1644 - CompactPCI Bus Hot Swap Controller
... to be safely inserted and removed from a CompactPCI bus slot. External N-channel transistors control the 3.3V/5V supplies, while on-chip switches control the –12V and 12V supplies. The 3.3V and 5V supplies can be ramped up at a programmable rate. Electronic circuit breakers protect all four supplies ...
... to be safely inserted and removed from a CompactPCI bus slot. External N-channel transistors control the 3.3V/5V supplies, while on-chip switches control the –12V and 12V supplies. The 3.3V and 5V supplies can be ramped up at a programmable rate. Electronic circuit breakers protect all four supplies ...
Non-isolated, Phase Dimmable, Buck PFC LED Driver with Digital
... The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDECstandard test exists, but a close description can be found in the ANSI SEMI standard G30-88. The junction-to-board thermal resistance is obtained by simulating in an environ ...
... The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDECstandard test exists, but a close description can be found in the ANSI SEMI standard G30-88. The junction-to-board thermal resistance is obtained by simulating in an environ ...
MAX5471/MAX5472/MAX5474/MAX5475 32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23 General Description
... (state of U/D) can be changed at any time as long as the setup and hold times are met. Since the MAX5471/MAX5472 have the wiper internally connected to H, an increment command increases the resistance between H and GND, and a decrement command decreases the resistance between H and GND. The wiper pe ...
... (state of U/D) can be changed at any time as long as the setup and hold times are met. Since the MAX5471/MAX5472 have the wiper internally connected to H, an increment command increases the resistance between H and GND, and a decrement command decreases the resistance between H and GND. The wiper pe ...
3. Switched Current Mirror Mixer
... gain of the mixer with different a. We can see that the conversion gain is easy to adjust. Because the noise from the mixer is moderated by the LNA’s gain, it places a limit on how small a signal can be resolved. The sensitivity of the receiver is then adversely affected. Noise is measured using the ...
... gain of the mixer with different a. We can see that the conversion gain is easy to adjust. Because the noise from the mixer is moderated by the LNA’s gain, it places a limit on how small a signal can be resolved. The sensitivity of the receiver is then adversely affected. Noise is measured using the ...
Multimeter
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A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value. A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of industrial and household devices such as electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems.Multimeters are available in a wide range of features and prices. Cheap multimeters can cost less than US$10, while laboratory-grade models with certified calibration can cost more than US$5,000.