Linear - Analog Multipliers, Dividers

Category Introduction

Analog multipliers take two or more analog signals and produce an output which is their product or the sum of multiple products. Such circuits can be used to implement related functions such as squares (apply same signal to both inputs) and square roots. Applications may include variable gain amplifiers, ring modulators, product detectors, mixers, gain control, true RMS converters, and pulse amplitude modulators (PAMs).

Product List

84 Items

Mfr Part #	Quantity Available	UnitPrice	Series	Packaging	Product Status	Function	Number of Bits/Stages	Package / Case	Supplier Device Package
AD633ARZ-R7 IC MULTIPLIER ANALOG 8-SOIC Analog Devices Inc.	9	$12.60		Tape & Reel (TR)	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD633JRZ-R7 IC MULTIPLIER ANALOG 8-SOIC Analog Devices Inc.	48	$12.52		Tape & Reel (TR)	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD835ARZ-REEL7 IC MULTIPLIER 4-QUADRANT 8-SOIC Analog Devices Inc.	21	$25.49		Tape & Reel (TR)	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD633JRZ-RL IC MULTIPLIER ANALOG 8-SOIC Analog Devices Inc.	24	$12.64		Tape & Reel (TR)	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD538ADZ IC REALTIME ACU UNIT 18-CDIP Analog Devices Inc.	4	$88.66		Tube	Active	Analog Computational Unit	1-Quadrant	18-CDIP (0.300", 7.62mm)	18-SBDIP
ADL5391ACPZ-R2 DC TO 2.0 GHZ MULTIPLIER Analog Devices Inc.	122	$8.03		Bulk	Active	Analog Multiplier	1-Quadrant	16-VFQFN Exposed Pad, CSP	16-LFCSP-VQ (3x3)
AD633ARZ IC MULTIPLIER ANALOG 8-SOIC Analog Devices Inc.	38	$12.71		Tube	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD633JRZ IC MULTIPLIER ANALOG 8-SOIC Analog Devices Inc.	5	$12.63		Tube	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD633ANZ IC ANALOG MULTIPLIER 8-DIP Analog Devices Inc.	35	$16.83		Tube	Active	Analog Multiplier	4-Quadrant	8-DIP (0.300", 7.62mm)	8-PDIP
AD633JNZ IC ANALOG MULTIPLIER 8-DIP Analog Devices Inc.	41	$16.86		Tube	Active	Analog Multiplier	4-Quadrant	8-DIP (0.300", 7.62mm)	8-PDIP
AD834JRZ IC MULTIPLIER 4-QUADRANT 8-SOIC Analog Devices Inc.	11	$51.68		Tube	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD834ARZ IC MULTIPLIER 4-QUADRANT 8-SOIC Analog Devices Inc.	15	$54.52		Tube	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
AD632AHZ IC PREC MULTIPLIER MONO TO100-10 Analog Devices Inc.	6	$38.30		Bulk	Active	Analog Multiplier/Divider	4-Quadrant	TO-100-10 Metal Can	TO-100-10
AD834JNZ IC MULTIPLIER QUADRANT 8DIP Analog Devices Inc.	10	$60.47		Tube	Active	Analog Multiplier	4-Quadrant	8-DIP (0.300", 7.62mm)	8-PDIP
AD632BHZ IC MULTIPLIER TRIMMED TO100-10 Analog Devices Inc.	9	$45.37		Bulk	Active	Analog Multiplier/Divider	4-Quadrant	TO-100-10 Metal Can	TO-100-10
AD532JDZ IC MULTIPLIER 10V 14-CDIP Analog Devices Inc.	4	$113.73		Tube	Active	Analog Multiplier/Divider	4-Quadrant	14-CDIP (0.300", 7.62mm)	14-CDIP
AD534TD IC PREC MULTIPLIER 14-CDIP Analog Devices Inc.	3	$349.97		Tube	Active	Analog Multiplier/Divider	4-Quadrant	14-CDIP (0.300", 7.62mm)	14-CDIP
AD835ARZ IC MULTIPLIER 4-QUADRANT 8-SOIC Analog Devices Inc.	24	$25.28		Bulk	Active	Analog Multiplier	4-Quadrant	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MPY634KU IC WIDE BW PREC MULT 16-SOIC Texas Instruments	37	$27.46	MPY	Bulk	Active	Analog Multiplier	4-Quadrant	16-SOIC (0.295", 7.50mm Width)	16-SOIC
AD734ANZ IC MULT/DIV 4-QUADRANT 14-DIP Analog Devices Inc.	2	$42.31		Tube	Active	Analog Multiplier	4-Quadrant	14-DIP (0.300", 7.62mm)	14-PDIP

About Analog Multipliers & Analog Dividers

What are Analog Multipliers & Analog Dividers?

Analog Multipliers

Analog multipliers are specialized integrated circuits designed to perform the mathematical operation of multiplication on two analog input signals. These devices are fundamental in various signal processing applications where the product of two signals is required. The basic operating principle involves converting the input signals into currents, which are then multiplied using a transconductance stage. The resulting product is converted back into a voltage output. This process allows for the precise manipulation of signal amplitudes, making analog multipliers essential components in modulation, demodulation, and other signal processing tasks.

Analog Dividers

Analog dividers are specialized integrated circuits designed to perform division operations on analog signals. These components are crucial in applications where it is necessary to divide one analog signal by another, producing an output that is the quotient of the two inputs. The basic operating principle involves using a combination of transistors, resistors, and capacitors to achieve a mathematical division of input voltages. By leveraging the properties of these electronic components, analog dividers can maintain signal integrity while providing precise and reliable division results.

Types of Analog Multipliers

Four-Quadrant Multipliers

Four-quadrant multipliers can handle both positive and negative input signals, making them versatile for applications requiring full-wave signal processing. These multipliers are commonly used in applications like amplitude modulation and phase detection, where the ability to process bipolar signals is crucial.

Two-Quadrant Multipliers

Two-quadrant multipliers are designed to handle one positive and one negative input signal. They are typically used in applications where one signal remains constant in polarity, such as in automatic gain control circuits. These multipliers offer simpler designs and are often more cost-effective than their four-quadrant counterparts.

Logarithmic Multipliers

Logarithmic multipliers utilize the logarithmic properties of signals to perform multiplication. They are particularly useful in applications requiring wide dynamic range and high precision, such as in audio processing and instrumentation. These multipliers convert input signals to their logarithmic equivalents, add them, and then convert the result back to a linear scale.

Types of Analog Dividers

Logarithmic Analog Dividers

Logarithmic analog dividers utilize the logarithmic properties of signals to perform division. By converting the input signals into their logarithmic equivalents, these dividers can subtract the logarithms to achieve division. They are particularly useful in applications requiring a wide dynamic range and where signal compression is beneficial.

Operational Amplifier-Based Dividers

These dividers use operational amplifiers (op-amps) to perform division operations. By configuring op-amps in specific feedback arrangements, they can achieve division with high precision. They are commonly used in applications requiring high accuracy and low noise.

Translinear Analog Dividers

Translinear analog dividers exploit the exponential relationship between current and voltage in semiconductor devices. By using matched transistors in a translinear loop, these dividers can perform division with high speed and efficiency. They are ideal for applications requiring fast response times.

How to choose Analog Multipliers?

When selecting an analog multiplier, several key parameters should be considered:

Bandwidth: Ensure the multiplier can handle the frequency range of your application.
Linearity: Look for multipliers with low distortion to maintain signal integrity.
Temperature Range: Choose a multiplier that operates reliably within your environmental conditions.
Supply Voltage: Verify compatibility with your system's power supply.

Evaluating product quality involves checking supplier certifications, customer reviews, and product datasheets. Reliability can be assessed through testing for consistency in performance under various conditions. Consider environmental factors such as humidity and temperature, and ensure proper installation to avoid interference and signal degradation.

How to choose Analog Dividers?

When selecting an analog divider, several key parameters must be considered:

Accuracy: Evaluate the precision required for your application, ensuring the divider meets the necessary accuracy specifications.
Bandwidth: Consider the frequency range over which the divider must operate effectively.
Input Range: Ensure the divider can handle the expected range of input voltages without distortion.
Temperature Stability: Assess the divider's performance across the expected temperature range of your application.
Power Consumption: Choose a divider that meets your power efficiency requirements, especially in battery-powered applications.

To evaluate product quality and reliability, review supplier datasheets, customer reviews, and industry certifications. Consider environmental factors such as humidity and temperature, and ensure the installation requirements align with your system's design.

Applications of Analog Multipliers & Analog Dividers

Analog multipliers and dividers are versatile components used in various industries to perform mathematical operations on analog signals. These components are essential in applications where signal processing, modulation, and control are required. Below are some of the key industries and scenarios where analog multipliers and dividers play a crucial role:

1. Telecommunications

In the telecommunications industry, analog multipliers are extensively used in modulation and demodulation processes. They help in mixing signals to shift frequencies, which is essential for transmitting data over different channels. Analog dividers, on the other hand, are used in automatic gain control circuits to maintain consistent signal levels, ensuring clear and reliable communication.

2. Audio Processing

Analog multipliers find applications in audio processing, particularly in the creation of effects such as amplitude modulation and ring modulation. These effects are used in synthesizers and audio mixers to produce unique sound textures. Analog dividers are used in audio compressors to manage dynamic range, ensuring that audio signals remain within desired levels without distortion.

3. Instrumentation and Measurement

In instrumentation, analog multipliers are used in phase-locked loops (PLLs) for frequency synthesis and control. They are also employed in signal conditioning circuits to perform operations such as squaring and square rooting of signals. Analog dividers are crucial in ratio metric measurements, where they help in comparing two signals to determine their relative magnitudes, which is vital in precision measurement systems.

4. Control Systems

Control systems in industrial automation often utilize analog multipliers in feedback loops to adjust control signals based on real-time data. This is particularly important in proportional-integral-derivative (PID) controllers, where precise multiplication of error signals is required for accurate control. Analog dividers are used to normalize signals, ensuring that control actions are proportional to the desired setpoints.

5. Aerospace and Defense

In aerospace and defense applications, analog multipliers are used in radar and sonar systems for signal processing tasks such as Doppler shift detection and beamforming. These systems rely on accurate multiplication of signals to enhance detection capabilities. Analog dividers are used in navigation systems to compute ratios of signals, aiding in precise location and speed determination.

Overall, analog multipliers and dividers are indispensable components in a wide array of applications, providing essential functions that enhance the performance and reliability of electronic systems across various industries.