The AD633 is a fully functional four-quadrant analog multiplier with high impedance differential X and Y inputs and a high impedance summing input (Z). Its low impedance output voltage is nominally 10 V full scale and is supported by a built-in Zener diode. The AD633 is the first product on the market to offer such a rich set of features in affordable 8-lead PDIP and SOIC packages.
To ensure high accuracy, the AD633 is laser calibrated to maintain overall accuracy within 2% of full scale. The nonlinearity of the Y input is typically less than 0.1% over a 10 Hz to 10 kHz bandwidth, and the converted noise at the output is typically less than 100 μV rms. With a bandwidth of 1 MHz and a slew rate of 20 V/μs, the AD633 is capable of driving capacitive loads, making it ideal for a variety of simple and cost-sensitive applications.
The ease of use of the AD633 does not compromise its versatility. Users can access the output buffer amplifier through the Z input to add the outputs of multiple multipliers, increase the gain of multipliers, convert the output voltage to current, and configure many other applications.
The device is available in 8-pin PDIP and SOIC packages and is rated for the J grade over the 0°C to 70°C operating temperature range and the A grade over the −40°C to +85°C industrial temperature range.
Overall, the AD633 is a full-featured four-quadrant multiplier packaged in low-cost 8-lead PDIP and SOIC, which is cost-effective and easy to use. When using the AD633, there is no need for external components or expensive user calibration, and the single-chip structure and laser calibration make it more stable and reliable. The high input impedance (10 MΩ) also ensures negligible signal source loading. The device is suitable for supply voltages from ±8 V to ±18 V, and its internal regulation voltage is generated by a stable Zener diode, so the multiplier accuracy is basically insensitive to the power supply.
Catalog:
AD632 Functional Block Diagram
What is the Function of Analog Multiplier IC AD633
• Four-quadrant multiplication
• Low-cost 8-pin SOIC and PDIP packages
• Complete structure, no external components required
• High-precision laser trimming
• Total error within 2% of full-scale range
• Differential high-impedance X and Y inputs
• High-impedance unity-gain summing input
• Laser-trimmed 10 V reference voltage source
• Support for defense and aerospace applications (AQEC standard)
• Military temperature range (-55°C to +125°C)
• Controlled manufacturing baseline
• Enhanced product change notification
• Certification data available upon request
• V62/18603 DSCC drawing number
To view AD633 IC datasheet, please click here.
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The relationship between Output Response and Frequency
The relationship between CMRR and Frequency
The relationship between Noise Spectral Density and Frequency
The relationship between AC thru and frequency
The AD633 analog multiplier IC has a wide range of applications due to its versatile nature. Some of the common applications of the AD633 include:
Signal Processing: The AD633 is often used in various signal processing circuits to perform analog multiplication and division operations. It finds applications in filters, modulators, demodulators, and frequency converters.
Voltage-Controlled Amplifiers (VCA): The AD633 can be configured as a voltage-controlled amplifier, which is useful in applications like automatic gain control (AGC), audio processing, and synthesizers.
Voltage-to-Current Conversion: The device can convert voltage signals into corresponding current signals, which can be utilized in various control systems and instrumentation.
Phase Sensitive Detection: In applications like phase-locked loops (PLL) and phase detectors, the AD633 can be employed for phase-sensitive detection and demodulation of signals.
Instrumentation and Measurement: The AD633 can be used in various measurement setups for precision analog signal processing, sensor signal conditioning, and analog computation.
Analog Computation: Due to its ability to perform multiplication and division of analog signals, the AD633 is suitable for analog computation tasks in various systems.
Audio and Music Applications: The AD633 can be found in audio mixers, synthesizers, and other audio equipment where signal modulation and processing are required.
Communications: In communication systems, the AD633 can be utilized for frequency translation, modulation, and demodulation functions.
Control Systems: The AD633 can be used in control systems to implement various control algorithms and functions.
Function Generators: The AD633 can be employed in function generator circuits to generate various waveforms and signals.
The AD633 is an analog multiplier IC (Integrated Circuit) designed to perform the function of analog multiplication and division of two input voltage signals. It is often referred to as a four-quadrant multiplier due to its capability of handling both positive and negative input signals.
The main function of the AD633 is to take two analog input voltages, X and Y, and produce an output voltage that is the result of their multiplication or division, depending on the configuration. The output voltage (Z) is given by the formula:
Z = X * Y (For multiplication)
Z = X / Y (For division)
The AD633 can handle both AC and DC signals and operates across a wide frequency range, making it suitable for various signal processing applications. Its four-quadrant operation allows it to perform multiplication in all four quadrants of the input signal space, which means it can handle positive and negative voltages in both the X and Y inputs.
The device is commonly used in applications such as signal processing, modulation, demodulation, voltage-controlled amplifiers, phase-sensitive detection, and various analog computation tasks. Its versatility and precision make it an essential component in many analog systems where multiplication or division of signals is required.
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