Analog Devices Inc. AD539JDZ

Overview

AD539JDZ from Analog Devices is a wideband dual-channel linear multiplier/divider IC designed for high-fidelity analog signal processing in precision timing and control paths. It delivers 60 MHz signal bandwidth (IOUT), 5 MHz linear control channel bandwidth, ≤0.02% THD + noise at 10 kHz, ±2 V nominal full-scale Y-inputs, and −3 dB bandwidth verified under 50 Ω load. It serves as the core gain-control element in voltage-controlled amplifiers for video AGC systems.

For engineers reviewing the AD539JDZ datasheet, AD539JDZ pinout, AD539JDZ application, or AD539JDZ equivalent, this page provides verified functional identity, validated pin roles, confirmed dual-channel transfer behavior (VW = −VX × VY/VU), calibrated scaling voltage (VU = 1.00 V ±2%), and real-world crosstalk (−40 dB) and feedthrough (−75 dBm @ <1 MHz) specifications - all specific to the AD539JDZ ceramic SBDIP-16 variant.

Technical Context

The AD539JDZ implements a fully monolithic, laser-trimmed analog multiplier architecture with two independent Y-input channels (VY1, VY2) sharing a single positive-only VX control input. Its signal path uses matched large-geometry transistors (Q1–Q6) and band-gap-referenced current steering to achieve linear gain control across 0–3 V VX range and ±2 V Y-input range.

It supports three primary configurations: standard dual-channel multiplier (60 MHz BW, ±6 V FS output with external op amps), wideband single-channel VCA (50 MHz BW), and analog divider (15 MHz BW). Channel isolation is maintained via separate internal common nodes (INPUT COMMON, OUTPUT COMMON, BASE COMMON) and physically isolated feedback resistors (Z1/W1, Z2/W2).

Key Specifications

Pinout & Package

AD539JDZ is packaged in a hermetic 16-lead ceramic SBDIP (D-16) with 0.3-inch width and 0.1-inch lead pitch. Pin 1 is identified by a notch or dot; pins are numbered counterclockwise starting from top-left corner when viewed from top.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD632AH and MPY634KP, the AD539JDZ uniquely combines dual independent channels, 60 MHz signal bandwidth, and factory-calibrated 1 V scaling voltage - making it the only option for synchronized multi-path video gain control or high-speed differential computation without external trimming.

Availability

AD539JDZ is available at Aetrix Electronics and suitable for video signal processing, voltage-controlled filtering, precision AGC systems, and high-speed analog division requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD539JDZ 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 AD539JDZ belongs to Analog Devices' precision analog multiplier product line, engineered specifically for wideband, low-distortion gain control and computational functions in video, instrumentation, and communications systems.

FAQ

What is the exact package type and pin count for AD539JDZ?

The AD539JDZ is supplied in a hermetic 16-lead ceramic SBDIP (D-16) package with 0.3-inch body width and 0.1-inch lead pitch. This matches the pinout shown in Figure 3 of the AD539 Rev. B datasheet for N-16/D-16 variants, including dedicated VX, VY1, VY2, CHAN1 OUTPUT, CHAN2 OUTPUT, and dual 6 kΩ feedback resistor terminals (Z1/W1, Z2/W2). The "JDZ" suffix explicitly denotes the D-16 ceramic package.

Does AD539JDZ support true 4-quadrant multiplication?

No, the AD539JDZ is specified and characterized as a 2-quadrant multiplier/divider. Its VX control input operates only over 0 V to +3 V (positive-only), while VY1 and VY2 accept ±2 V signals. This enables multiplication of a bipolar signal by a unidirectional gain control - sufficient for AGC, VCA, and voltage-controlled filter applications - but does not support full 4-quadrant operation where both X and Y inputs swing bipolar.

What is the guaranteed accuracy of the scaling voltage VU for AD539JDZ?

The AD539JDZ has a factory-laser-trimmed scaling voltage VU of 1.000 V with guaranteed accuracy of ±2% (0.98 V to 1.02 V) at TA = 25°C, and ±3% over the full 0°C to +70°C operating range. This value is explicitly specified in Table 1 of the AD539 Rev. B datasheet under "Multiplier Scaling Voltage, VU" for the J-grade (which AD539JDZ belongs to), and directly defines the transfer function VW = −VX × VY/VU.

Can AD539JDZ be used as an analog divider, and what is its bandwidth in that mode?

Yes, the AD539JDZ can be configured as an analog divider with signal bandwidth up to 15 MHz, as confirmed in the General Description and Table 1 (under "Divider Connections" section). In divider mode, VX serves as the denominator input and VY as the numerator; the output is proportional to VY/VX × VU. Performance is verified with −3 dB bandwidth measured at 15 MHz using the configuration shown in Figure 25 of the datasheet.

What are the absolute maximum supply voltage ratings for AD539JDZ?

The AD539JDZ supports operational supply voltages from ±4.5 V to ±15 V, as stated in the "POWER SUPPLIES" section of Table 1. While ±5 V is recommended for typical 135 mW operation, the device tolerates up to ±16.5 V (absolute maximum rating per Absolute Maximum Ratings table), though dissipation rises to 535 mW at ±16.5 V - requiring thermal management. The "JDZ" grade is rated for 0°C to +70°C operation.