AD632BHZ

Overview

The AD632BHZ is a precision monolithic four-quadrant multiplier and divider manufactured by Analog Devices. It features internally trimmed accuracy with a maximum multiplying error of ±0.5% at +25°C. The device operates within a temperature range of -25°C to +85°C and supports supply voltages from ±8V to ±18V. It utilizes a 10-pin metal header (TO-100) package. Key electrical specifications include a small-signal bandwidth of 1 MHz, a slew rate of 20 V/µs, and a wideband noise of 90 µV rms over the 10 Hz to 10 kHz frequency range.

Feature Summary

• Internally trimmed for high precision with guaranteed low multiplying errors without external adjustments.
• Supports differential inputs for X, Y, and Z channels, enabling flexible algebraic computations.
• Offers adjustable scale factors up to ×10 gain, reducing the need for separate instrumentation amplifiers.
• Provides excellent long-term stability and supply rejection due to on-chip thin film resistors and buried zener references.

Applications

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

Procurement Notes

Verify that the specific part number matches the required performance grade, as the AD632 series includes variants with different error tolerances and extended temperature ranges. Confirm the package type corresponds to the intended board layout, specifically distinguishing between the ceramic DIP and hermetically sealed metal can options. Ensure compatibility with the system's power supply constraints and thermal management requirements before finalizing procurement.

Selection Notes

Select the AD632BHZ when a balance of high precision and standard industrial operating temperatures is required. This model offers tighter error margins compared to the AD632A variant while maintaining cost-effectiveness relative to military-grade screened versions. Consider this component for applications demanding accurate multiplication or division functions where differential input flexibility and low noise characteristics are critical design parameters.

Part Context

The AD632 series serves as an improved successor to industry-standard multipliers like the AD532, offering enhanced specifications such as fully differential high-impedance Z inputs. The B-series models represent the precision tier within the family, designed for applications requiring minimal external trimming. The H-package variant provides a hermetically sealed option suitable for environments requiring robust physical protection and reliability.

Replacement Considerations

The AD632 is pin-for-pin compatible with the AD532. For direct replacements within the same manufacturer's portfolio, consider the AD632ADZ for a ceramic DIP alternative or the AD632BDZ for a higher precision DIP version. Verify that any substitute maintains the required temperature range and package footprint.

FAQ

What is the maximum multiplying error for the AD632BHZ?

The AD632BHZ has a maximum multiplying error of ±0.5% at +25°C.

Does the AD632BHZ require external trimming for basic operation?

No, the AD632BHZ is internally trimmed and meets specifications without external trims for standard multiplier operations.

What is the small-signal bandwidth of the AD632BHZ?

The small-signal bandwidth is 1 MHz.