AD633: A Quad-Rate Analog Multiplier with High Performance and Cost-Effectiveness

The AD633 is a quad-rate analog multiplier from ADI that integrates multiple functions into one device. It features high-impedance differential X and Y inputs, as well as a high-impedance summing input (Z). The output voltage of this device is a standard 10 V full scale, and the low-impedance output is provided by an internal zener diode for stabilization. As the first product on the market to offer such a range of functions in an affordable 8-pin PDIP and SOIC package, the AD633 has set a new standard in packaging technology.

The AD633 is precisely laser-calibrated to ensure an overall accuracy of up to 2%. Within a bandwidth of 10 Hz to 10 kHz, the nonlinearity of the Y input is minimal, with a typical value below 0.1%, and the noise level converted to the output end is represented by a root mean square value below 100 μV. With an operational bandwidth of 1 MHz and a slew rate of 20 V/μs, it can handle capacitive loads. Overall, this multiplier is very suitable for applications that require both convenience and cost-effectiveness.

The use of AD633 is very simple, and it is also very flexible and multifunctional. Users can use the Z input to directly access the output buffer amplifier, thereby achieving the superposition of multiple multiplier outputs, enhancing the gain of the multiplier, converting the output voltage to current, or configuring custom solutions for various unique applications.

The AD633 not only provides two practical packaging methods of 8-pin PDIP and SOIC but also divides into two grades: the J grade is used for the commercial temperature range of 0°C to 70°C, and the A grade covers the industrial temperature range of -40°C to +85°C. These two grades can meet the needs of different environments.

Product Highlights:

1. Easy to use. The AD633 integrates a complete quad-rate multiplication function into a cost-effective 8-pin PDIP and SOIC package.

2. Simple operation. When applying the AD633, no additional devices or cumbersome user calibration procedures are required.

3. Stable and reliable. The device ensures high stability and reliability with a single-chip architecture and laser calibration.

4. An input impedance of up to 10 MΩ significantly reduces the load impact on the signal source.

5. The power supply voltage can vary between +8V and +18V, and the computational accuracy of the multiplier is not affected by power supply voltage fluctuations, thanks to an internal stable zener diode that generates a fixed adjustment voltage.

Applicable Fields:  

Complex mathematical operations, such as multiplication, division, and square calculations.  

Signal modulation and demodulation operations, as well as phase detection.  

As a voltage-controlled amplifier, attenuator, or filter, etc.

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