Analog Functions
Analog Devices designs amplifiers and linear products that deliver high performance and high value. We combine circuit design, manufacturing process innovation, and applications expertise to create products that simplify signal conditioning design.
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Analog Multipliers & Dividers
An analog multiplier/divider is a device that produces an output voltage or current that is proportional to the product of two or more independent input voltages or currents. In addition to multiplying and dividing, multipliers can perform squaring, square-rooting and modulation functions. Applications include radar, communications, and industrial controls where a real-time response is required. Analog Devices’ offers the widest selection of multipliers and dividers.
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High Speed Comparators (<100ns Propagation Delay)
Analog Devices high speed comparators feature <100 ns propagation delay and are a versatile and easy to use solution for a range of applications. Owing to our proprietary CB and XFCB fabrication processes, our comparators such as the AD790 possess a fast response time with outstanding input voltage resolution.
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Low Power Comparators
Analog Devices low power comparators provide a capable solution to demanding applications that must operate in the µA range. To cover a range of design needs, our low power comparators are available in commercial, industrial, and automotive temperature ranges, with feature such as noninverting inputs and inverting inputs. This portfolio supports applications such as Li-Ion monitoring, handheld instruments, LED/relay driving, control systems, and optoisolator driving.
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Current Mirrors
Analog Devices current mirrors are precision, high dynamic range, wide variable supply parts used for optical power monitoring, voltage biasing with current monitoring, and voltage-to-current conversion. Our current mirrors can monitor current down to as little as 3 nA and as much as 3 mA, with a linearity of 1% or better. The current dynamic range is 120 dB or 6 decades of current range, while the overcurrent protection feature in our devices forces the input pin to ground to avoid part damage. Over temperature (–40°C to +85°C) and process, the dynamic range only suffers 10 dB at the lower end of the range.
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Filter Building Blocks
Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) filter building blocks. These devices were designed to simplify the implementation of band-pass, high-pass, low-pass, notch, or all-pass filters using classical filter realizations (such as Butterworth, Cauer, Bessel, and Chebyshev).
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Low-Pass Filters
Low-Pass Filters from Analog Devices are specifically designed to reject higher frequency noise and unwanted signals while allowing desired signals to pass through. Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) devices preconfigured for low-pass filtering. These integrated low pass filters feature a wide range of cutoff frequencies and response characteristics.
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Wideband Active Filters
Analog Devices’ family of fixed and tunable wideband active filters operating up to 28 MHz bandwidth support a wide range of wireless communications, signal conditioning, and RFID applications. Single-channel and dual-channel options are available.
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Matched Transistors
Analog Devices offers dual and quad transistors with excellent matching characteristics. Offset voltages, temperature drift, and hFE matching are individually tested to data sheet specifications. Device performance is guaranteed over industrial and military temperature ranges. Each of these devices is an excellent choice as an input stage for an amplifier or in log/antilog circuits. ADI’s matched transistors offer low noise and high gain, with characteristics approaching an ideal transistor.
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Precision Modulators/Demodulators
Analog Devices precision modulators and demodulators support balanced modulation and demodulation, synchronous detection, signal recovery, and a range of other applications in industrial, medical, and communications markets. Our devices are specified over a temperature range of –40°C to +85°C and have the low power consumption that makes them ideal for battery-powered and low voltage systems.
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Precision Resistor Network
Analog Devices provides a portfolio of quad resistor networks with excellent matching specifications over the entire temperature range. All of our resistors can be accessed and biased independently, making them a convenient and versatile choice for any application that can benefit from matched resistors. Our resistor networks provide the precise ratiometric stability required in highly accurate difference amplifiers, voltage references, and bridge circuits.
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RMS to DC Converters
RMS-to-DC converters manufactured by Analog Devices are used in a wide variety of applications where precision and low power measurement of ac signals is the prime objective. An ADI rms-to-dc converter offers real time measurements, meaning there are no latency issues such as those that limit the frequency response of other technologies—the dc output is simply the equivalent of the rms input, over a wide range of input frequencies, and for complex waveforms not limited to sine waves. ADI offers a wide range of rms-to-dc converters optimized for the most demanding performance, power, and cost applications satisfying true rms needs.
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Switched Cap Building Blocks
Analog Devices’ family of switched capacitor building blocks provide a unique method of sampling and amplifying low level differential signals with excellent CMRR and precision.
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Micropower Voltage References
Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Reference plus Comparator or Amplifier
Analog Devices reference plus comparator or amplifier products combine the excellent initial accuracy and low overtemperature drift performance of single function voltage references with comparators, buffer amplifiers, and current sense amplifiers. These products offer compact solutions for a broad range of applications such as battery monitoring, threshold detectors, window comparators, auto power-off circuits, and low dropout (LDO) regulators.
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Series Voltage References
Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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product
Shunt Voltage References
Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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product
Analog Multipliers & Dividers
An analog multiplier/divider is a device that produces an output voltage or current that is proportional to the product of two or more independent input voltages or currents. In addition to multiplying and dividing, multipliers can perform squaring, square-rooting and modulation functions. Applications include radar, communications, and industrial controls where a real-time response is required. Analog Devices’ offers the widest selection of multipliers and dividers.
-
product
High Speed Comparators (<100ns Propagation Delay)
Analog Devices high speed comparators feature <100 ns propagation delay and are a versatile and easy to use solution for a range of applications. Owing to our proprietary CB and XFCB fabrication processes, our comparators such as the AD790 possess a fast response time with outstanding input voltage resolution.
-
product
Low Power Comparators
Analog Devices low power comparators provide a capable solution to demanding applications that must operate in the µA range. To cover a range of design needs, our low power comparators are available in commercial, industrial, and automotive temperature ranges, with feature such as noninverting inputs and inverting inputs. This portfolio supports applications such as Li-Ion monitoring, handheld instruments, LED/relay driving, control systems, and optoisolator driving.
-
product
Current Mirrors
Analog Devices current mirrors are precision, high dynamic range, wide variable supply parts used for optical power monitoring, voltage biasing with current monitoring, and voltage-to-current conversion. Our current mirrors can monitor current down to as little as 3 nA and as much as 3 mA, with a linearity of 1% or better. The current dynamic range is 120 dB or 6 decades of current range, while the overcurrent protection feature in our devices forces the input pin to ground to avoid part damage. Over temperature (–40°C to +85°C) and process, the dynamic range only suffers 10 dB at the lower end of the range.
-
product
Filter Building Blocks
Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) filter building blocks. These devices were designed to simplify the implementation of band-pass, high-pass, low-pass, notch, or all-pass filters using classical filter realizations (such as Butterworth, Cauer, Bessel, and Chebyshev).
-
product
Low-Pass Filters
Is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The exact frequency response of the filter depends on the filter design.
-
product
Wideband Active Filters
Analog Devices’ family of fixed and tunable wideband active filters operating up to 28 MHz bandwidth support a wide range of wireless communications, signal conditioning, and RFID applications. Single-channel and dual-channel options are available.
-
product
Matched Transistors
Analog Devices offers dual and quad transistors with excellent matching characteristics. Offset voltages, temperature drift, and hFE matching are individually tested to data sheet specifications. Device performance is guaranteed over industrial and military temperature ranges. Each of these devices is an excellent choice as an input stage for an amplifier or in log/antilog circuits. ADI’s matched transistors offer low noise and high gain, with characteristics approaching an ideal transistor.
-
product
Precision Modulators/Demodulators
Analog Devices precision modulators and demodulators support balanced modulation and demodulation, synchronous detection, signal recovery, and a range of other applications in industrial, medical, and communications markets. Our devices are specified over a temperature range of –40°C to +85°C and have the low power consumption that makes them ideal for battery-powered and low voltage systems.
-
product
Precision Resistor Network
Analog Devices provides a portfolio of quad resistor networks with excellent matching specifications over the entire temperature range. All of our resistors can be accessed and biased independently, making them a convenient and versatile choice for any application that can benefit from matched resistors. Our resistor networks provide the precise ratiometric stability required in highly accurate difference amplifiers, voltage references, and bridge circuits.
-
product
RMS to DC Converters
RMS-to-DC converters manufactured by Analog Devices are used in a wide variety of applications where precision and low power measurement of ac signals is the prime objective. An ADI rms-to-dc converter offers real time measurements, meaning there are no latency issues such as those that limit the frequency response of other technologies—the dc output is simply the equivalent of the rms input, over a wide range of input frequencies, and for complex waveforms not limited to sine waves. ADI offers a wide range of rms-to-dc converters optimized for the most demanding performance, power, and cost applications satisfying true rms needs.
-
product
Switched Cap Building Blocks
Analog Devices’ family of switched capacitor building blocks provide a unique method of sampling and amplifying low level differential signals with excellent CMRR and precision.
-
product
Micropower Voltage References
Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
-
product
Reference plus Comparator or Amplifier
Analog Devices reference plus comparator or amplifier products combine the excellent initial accuracy and low overtemperature drift performance of single function voltage references with comparators, buffer amplifiers, and current sense amplifiers. These products offer compact solutions for a broad range of applications such as battery monitoring, threshold detectors, window comparators, auto power-off circuits, and low dropout (LDO) regulators.
-
product
Series Voltage References
Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
-
product
Shunt Voltage References
Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
