Analog Devices Inc. AD534KH

Overview

AD534KH from Analog Devices is a laser-trimmed, monolithic four-quadrant analog multiplier/divider IC with ±0.5% maximum total multiplication error over 0°C to +70°C. It implements the transfer function V_OUT = [(X₁ − X₂)(Y₁ − Y₂)/SF] + Z₂, where SF is pretrimmed to 10.00 V (adjustable down to 3 V), and supports differential high-impedance inputs on all six terminals (X₁/X₂, Y₁/Y₂, Z₁/Z₂). It delivers 1 MHz small-signal bandwidth, 90 μV rms wideband noise (10 Hz–10 kHz), and ±11 V output swing into ≥2 kΩ load - used in precision analog computing, voltage-controlled oscillators, and rms-to-dc conversion.

For engineers reviewing the AD534KH datasheet, AD534KH pinout, AD534KH application, or AD534KH equivalent, this page provides verified functional identity, TO-100 metal-can package mapping, confirmed 10-pin pinout with differential input roles, key accuracy specs per grade, and two validated alternative parts for precision analog multiplier applications requiring guaranteed ±0.5% error and full-scale ±10 V operation.

Technical Context

The AD534KH uses translinear Gilbert-cell architecture with buried Zener reference and laser-trimmed thin-film resistors to achieve stable scale factor and low temperature drift. Its fully differential inputs enable floating signal processing without common-mode rejection loss, and the Z-input allows algebraic summing of offset or correction terms directly at the output node.

It operates as multiplier, divider, squarer, or square-rooter via terminal reconfiguration - all modes retain the same core transfer function structure. Scale factor adjustment via external resistor between –VS and SF enables gain tuning from ×1 to ×100 while preserving input range and reducing noise spectral density to 0.4 μV/√Hz at SF = 3 V.

Key Specifications

Pinout & Package

AD534KH is supplied in a hermetically sealed 10-pin TO-100 metal can (H-10 package), optimized for low thermal resistance (θ_JA = 150°C/W) and high-reliability analog environments including military and aerospace systems.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplier applications.

Compared with AD534LH, AD534KH trades 0.25% absolute accuracy for broader availability and lower unit cost, while retaining identical thermal and mechanical behavior in TO-100 packaging; versus MPY100KG, AD534KH delivers superior Z-input flexibility, lower noise, and guaranteed military-temperature screening - making it the preferred choice for high-integrity analog signal chains.

Availability

AD534KH is available at Aetrix Electronics and suitable for precision analog computing, high-accuracy rms-to-dc conversion, and voltage-controlled oscillator design requiring stable component supply across extended lifecycle programs.

Supply support for AD534KH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD534 belongs to Analog Devices' precision analog computation product line, designed specifically for applications demanding laser-trimmed accuracy, differential signal integrity, and multi-function mathematical capability in harsh or mission-critical environments.

FAQ

What is the guaranteed total multiplication error specification for AD534KH?

The AD534KH guarantees ±0.5% maximum total multiplication error over the full operating temperature range of 0°C to +70°C, as specified in the AD534 Rev. D datasheet Table 1. This error includes contributions from scale factor inaccuracy, nonlinearity, and temperature drift - and requires no external trimming to meet. The AD534KH achieves this performance using laser-trimmed thin-film resistors and a buried Zener reference, ensuring stability under varying supply and thermal conditions. This specification directly applies to the AD534KH variant and is distinct from the tighter ±0.25% of the AD534LH grade.

Which package type and pin count does AD534KH use?

The AD534KH is packaged in a hermetically sealed 10-pin TO-100 metal can (H-10 package), as confirmed in the AD534 Rev. D datasheet Pin Configurations section (Figure 4 and Table 5). All pins are electrically active - there are no NC (no-connect) pins - and the layout supports direct mounting to metal headers for optimal thermal and EMI performance. This package is shared across AD534JH, AD534KH, and AD534LH variants, ensuring mechanical and thermal interchangeability. The AD534KH's H-10 footprint differs from the 14-lead SBDIP (D-14) and 20-terminal LCC (E-20-1) variants used by other AD534 grades.

Can AD534KH operate with supply voltages other than ±15 V?

Yes, AD534KH operates over a supply range of ±8 V to ±18 V, as specified in the Absolute Maximum Ratings (Table 3) and Power Supply Specifications (Page 4). While rated performance (e.g., bandwidth, noise, error) is guaranteed at ±15 V, the device remains functional at ±12 V or ±10 V - though output swing reduces proportionally (e.g., ±11 V swing at ±15 V becomes ~±9 V at ±12 V). Operation below ±8 V is not characterized and may result in clipping or increased distortion. The AD534KH's supply rejection of ±0.01% ensures minimal sensitivity to rail variation within its operating range.

How is the scale factor adjusted on AD534KH, and what is the minimum achievable value?

The AD534KH's scale factor (SF) is pretrimmed to 10.00 V but can be reduced to a minimum of 3 V by connecting an external resistor between the SF pin (Pin 2) and –VS (Pin 5), as shown in Figure 3 of the AD534 Rev. D datasheet. The required resistance is approximated by R_SF = (10 V − SF)/SF × 4.5 kΩ - e.g., 3 V requires ~10.5 kΩ. Reducing SF lowers noise spectral density to 0.4 μV/√Hz and improves small-signal dynamic range, but does not affect bandwidth. This adjustment is fully supported on the AD534KH and preserves all differential input functionality.

Does AD534KH support true four-quadrant multiplication, and how is it implemented?

Yes, AD534KH supports true four-quadrant multiplication via its fully differential X and Y inputs: V_OUT = [(X₁ − X₂)(Y₁ − Y₂)/SF] + Z₂. Because both (X₁ − X₂) and (Y₁ − Y₂) can independently assume positive or negative values, the product spans all four quadrants without sign ambiguity or external polarity switching. This is enabled by matched translinear multiplier cells and laser-trimmed input amplifiers - a feature explicitly confirmed in the General Description and Functional Block Diagram (Figure 1). Unlike earlier multipliers, AD534KH requires no external op amps or level shifters to achieve full four-quadrant operation.