A Step-Down Conversion Concept for a PWM
... discharged by the current from the current generator. For better accuracy the discharging current is adjusted by an error amplifier. The capacitor voltage is compared with a fixed voltage level (for ideal MOS switches this is ground level). Once the capacitor is discharged to this level a comparator ...
... discharged by the current from the current generator. For better accuracy the discharging current is adjusted by an error amplifier. The capacitor voltage is compared with a fixed voltage level (for ideal MOS switches this is ground level). Once the capacitor is discharged to this level a comparator ...
AD8106 数据手册DataSheet 下载
... AD8106/AD8107 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic encapsulated devices is determined by the glass transition temperature of the plastic, approximately 150°C. Temporarily exceeding this limit can cause a shift in parametric perf ...
... AD8106/AD8107 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic encapsulated devices is determined by the glass transition temperature of the plastic, approximately 150°C. Temporarily exceeding this limit can cause a shift in parametric perf ...
Measuring Temperature with Thermistors
... change of a thermistor as related to its temperature. The equation below shows it to be a 3rd order logarithmic polynomial using three constants. ...
... change of a thermistor as related to its temperature. The equation below shows it to be a 3rd order logarithmic polynomial using three constants. ...
Slide - Anne Roudaut
... 1. plug in two wires and a piece of foam between pin A0 and GND 1. write code to display the change of voltage on pin A0 1. write code to make an LED more or less bright when you squeeze the foam ...
... 1. plug in two wires and a piece of foam between pin A0 and GND 1. write code to display the change of voltage on pin A0 1. write code to make an LED more or less bright when you squeeze the foam ...
Data Sheet Features
... 6.1 The VIN quiescent current loss comprises two parts: the DC bias current as given in the electrical characteristics and the internal MOSFET switch gate charge currents. The gate charge current results from switching the gate capacitance of the internal power MOSFET switches. Each cycle the gate i ...
... 6.1 The VIN quiescent current loss comprises two parts: the DC bias current as given in the electrical characteristics and the internal MOSFET switch gate charge currents. The gate charge current results from switching the gate capacitance of the internal power MOSFET switches. Each cycle the gate i ...
LT1800 - 80MHz, 25V/µs Low Power Rail-to-Rail Input and Output Precision Op Amp
... The LT®1800 is a low power, high speed rail-to-rail input and output operational amplifier with excellent DC performance. The LT1800 features reduced supply current, lower input offset voltage, lower input bias current and higher DC gain than other devices with comparable bandwidth. The LT1800 has an ...
... The LT®1800 is a low power, high speed rail-to-rail input and output operational amplifier with excellent DC performance. The LT1800 features reduced supply current, lower input offset voltage, lower input bias current and higher DC gain than other devices with comparable bandwidth. The LT1800 has an ...
INA101 数据资料 dataSheet 下载
... obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the speci ...
... obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the speci ...
No Doze EEG Sleep Detector
... The main objectives of the signal processing module are to determine the frequency of the EEG signal, classify that frequency as a specific awareness level, and then output based on the user’s awareness state. The module has one input and four outputs. The single input is an analog AC voltage signal ...
... The main objectives of the signal processing module are to determine the frequency of the EEG signal, classify that frequency as a specific awareness level, and then output based on the user’s awareness state. The module has one input and four outputs. The single input is an analog AC voltage signal ...
MAX8751 Fixed-Frequency, Full-Bridge CCFL Inverter Controller General Description
... The MAX8751 can drive large power MOSFETs typically used in applications where one power stage drives four or more CCFL lamps in parallel. An internal 5.35V linear regulator powers the MOSFET drivers and most of the internal circuitry. The controller operates over a wide input-voltage range (6V to 2 ...
... The MAX8751 can drive large power MOSFETs typically used in applications where one power stage drives four or more CCFL lamps in parallel. An internal 5.35V linear regulator powers the MOSFET drivers and most of the internal circuitry. The controller operates over a wide input-voltage range (6V to 2 ...
74LCX257 Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs 7
... outputs. It selects four bits of data from two sources under control of a Common Data Select input. When the Select input is LOW, the I0x inputs are selected and when Select is HIGH, the I1x inputs are selected. The data on the selected inputs appears at the outputs in true (non inverted) form. The ...
... outputs. It selects four bits of data from two sources under control of a Common Data Select input. When the Select input is LOW, the I0x inputs are selected and when Select is HIGH, the I1x inputs are selected. The data on the selected inputs appears at the outputs in true (non inverted) form. The ...
LTC6802-2 - Multicell Addressable Battery Stack Monitor
... GPIO1, GPIO2 (Pins 35, 36): General Purpose Input/Output. The operation of these pins depends on the state of the MMB pin. When MMB is high, the pins behave as traditional GPIOs. By writing a “0” to a GPIO configuration register bit, the open drain output is activated and the pin is pulled to V–. By ...
... GPIO1, GPIO2 (Pins 35, 36): General Purpose Input/Output. The operation of these pins depends on the state of the MMB pin. When MMB is high, the pins behave as traditional GPIOs. By writing a “0” to a GPIO configuration register bit, the open drain output is activated and the pin is pulled to V–. By ...
MAX14778 Dual ±25V Above- and Below-the-Rails 4:1 Analog Multiplexer General Description
... and ENB). Drive ENA or ENB low to disconnect all inputs from the common terminal for that MUX, regardless of the status of the select inputs or the other enable input. ...
... and ENB). Drive ENA or ENB low to disconnect all inputs from the common terminal for that MUX, regardless of the status of the select inputs or the other enable input. ...
Features
... Sharp edges and high currents cause some parisitic elements in the packaging to become significant. In this frequency range, the package inductance and series resistance should be taken into account. It is known that an inductor slows down the settling time of the current and causes voltage drops on ...
... Sharp edges and high currents cause some parisitic elements in the packaging to become significant. In this frequency range, the package inductance and series resistance should be taken into account. It is known that an inductor slows down the settling time of the current and causes voltage drops on ...
13cm PSK transceiver for 1.2Mbit/s packet radio
... The input resonator (L1) functions as an open circuit for the input frequency (590MHz) and as a short circuit for the output frequency (1180MHz) of the frequency doubler. In this way the operation of the doubler is less sensitive to the exact cable length and output impedance of the exciter. The out ...
... The input resonator (L1) functions as an open circuit for the input frequency (590MHz) and as a short circuit for the output frequency (1180MHz) of the frequency doubler. In this way the operation of the doubler is less sensitive to the exact cable length and output impedance of the exciter. The out ...
ADM2491E 数据手册DataSheet 下载
... whereas the bus side requires an isolated 5 V supply. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations in which bus contention could cause excessive power dissipation. The ADM2491E is available in a wide body, 16-lead SOIC package ...
... whereas the bus side requires an isolated 5 V supply. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations in which bus contention could cause excessive power dissipation. The ADM2491E is available in a wide body, 16-lead SOIC package ...
MAX9169/MAX9170 4-Port LVDS and LVTTL-to-LVDS Repeaters General Description Features
... operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
... operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
Analog-to-digital converter
An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.The conversion involves quantization of the input, so it necessarily introduces a small amount of error. Furthermore, instead of continuously performing the conversion, an ADC does the conversion periodically, sampling the input. The result is a sequence of digital values that have been converted from a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal.An ADC is defined by its bandwidth (the range of frequencies it can measure) and its signal to noise ratio (how accurately it can measure a signal relative to the noise it introduces). The actual bandwidth of an ADC is characterized primarily by its sampling rate, and to a lesser extent by how it handles errors such as aliasing. The dynamic range of an ADC is influenced by many factors, including the resolution (the number of output levels it can quantize a signal to), linearity and accuracy (how well the quantization levels match the true analog signal) and jitter (small timing errors that introduce additional noise). The dynamic range of an ADC is often summarized in terms of its effective number of bits (ENOB), the number of bits of each measure it returns that are on average not noise. An ideal ADC has an ENOB equal to its resolution. ADCs are chosen to match the bandwidth and required signal to noise ratio of the signal to be quantized. If an ADC operates at a sampling rate greater than twice the bandwidth of the signal, then perfect reconstruction is possible given an ideal ADC and neglecting quantization error. The presence of quantization error limits the dynamic range of even an ideal ADC, however, if the dynamic range of the ADC exceeds that of the input signal, its effects may be neglected resulting in an essentially perfect digital representation of the input signal.An ADC may also provide an isolated measurement such as an electronic device that converts an input analog voltage or current to a digital number proportional to the magnitude of the voltage or current. However, some non-electronic or only partially electronic devices, such as rotary encoders, can also be considered ADCs. The digital output may use different coding schemes. Typically the digital output will be a two's complement binary number that is proportional to the input, but there are other possibilities. An encoder, for example, might output a Gray code.The inverse operation is performed by a digital-to-analog converter (DAC).