AD632TH/883B

Overview

The AD632TH/883B is a hermetically sealed, internally trimmed monolithic four-quadrant multiplier and divider manufactured by Analog Devices. It belongs to the AD632 series rated for operation from −55°C to +125°C with a maximum multiplying error of ±1.0%. The device features differential high-impedance inputs (X, Y, Z) and supports a transfer function of [(X1 − X2)(Y1 − Y2)/10] + Z2. It operates on ±8 V to ±22 V supplies with a quiescent current of 4 mA. Packaged in a 10-pin TO-100 metal header, it provides up to ×10 gain via adjustable scale factors.

Feature Summary

• Internally trimmed precision architecture ensuring low multiplying errors without external adjustments.
• Fully differential high-impedance inputs for X, Y, and Z channels supporting flexible signal configurations.
• Hermetically sealed metal can construction designed for high reliability in demanding environments.
• Adjustable scale factor capability providing up to ×10 gain to reduce the need for separate amplifiers.

Applications

• High quality analog signal processing
• Differential ratio and percentage computations
• Algebraic and trigonometric function synthesis
• Accurate voltage controlled oscillators and filters

Procurement Notes

Verify that the specific suffix /883B confirms compliance with MIL-STD-883 Level B screening requirements as indicated in the product highlights. Confirm the package type matches the 10-pin Metal Header (H-10) configuration. Ensure the temperature range specification aligns with the required operational environment limits for the application design.

Selection Notes

Select this component when extended temperature operation between −55°C and +125°C is required alongside high reliability standards. The AD632TH/883B offers improved specifications over the industry standard AD532, including a fully differential high impedance Z input. Consider its variable gain capability and low noise characteristics for applications requiring precise analog computation without additional conditioning stages.

Part Context

This part is part of the AD632 family of precision IC multipliers. It shares functional compatibility with the AD532 but provides enhanced performance metrics. The /883B suffix denotes military-grade screening. Other variants include AD632SH for commercial/high-reliability use and AD632TD/883B for ceramic DIP packaging within the same temperature range.

Replacement Considerations

The AD632 is pin-for-pin compatible with the AD532. For direct replacement within the same package and temperature range, consider the AD632SH or AD632TD. Verify that the error specifications of the substitute meet the system accuracy requirements.

FAQ

What is the transfer function of the AD632?

The transfer function is VO = A - (Z1 - Z2)(X1 - X2)(Y1 - Y2)/10 + Z2, where A represents the offset adjustment.

Does the AD632 support division operations?

Yes, the device can operate as a divider by connecting the denominator input to the X terminals and the numerator to the Z terminal, allowing for differential ratio generation.