AD633JNZ is a precision, laser-trimmed, four-quadrant analog multiplier/divider IC designed and manufactured by Analog Devices Inc. (ADI). It belongs to the classic, high-accuracy AD633 family, engineered specifically for true analog computation applications, where real-time multiplication, division, squaring, square-rooting, and modulation/demodulation of low-frequency signals — with exceptional linearity, stability, and DC precision — are required.
The “JNZ” suffix denotes the 8-lead PDIP package (0.3 inch width) — a through-hole, breadboard-friendly, and historically widely used package; it is Pb-free, RoHS-compliant, and qualified for commercial temperature range (0°C to +70°C ambient). (Note: For industrial or extended temperature operation, ADI offers the AD633ARZ in SOIC-8.)
⚠️ Critical Clarification:
The AD633 is not a digital signal processor or microcontroller-based multiplier. It is a fully analog, monolithic, four-quadrant voltage-mode multiplier, meaning:
- It multiplies two differential input voltages (X₁–X₂ and Y₁–Y₂) and adds a Z input offset, producing an output:
VOUT = (X₁ – X₂)(Y₁ – Y₂)/10 V + Z
— the /10 V scaling factor provides inherent gain control and simplifies interfacing (e.g., ±10 V inputs → ±10 V output full scale);
- It operates DC-coupled, with guaranteed performance from DC to 1 MHz, making it suitable for both static (e.g., sensor linearization) and dynamic (e.g., AM demodulation) applications;
- It features laser-trimmed thin-film resistors, delivering 0.5% maximum total error (including linearity, gain, and offset) over temperature — far superior to discrete op-amp+transistor multipliers;
- It requires no external components for basic operation, but supports optional external compensation (for bandwidth extension) and external reference (for improved accuracy).
It operates from ±8 V to ±18 V dual supplies, consumes 12 mA quiescent current, and delivers ±10 V output swing into 2 kΩ loads. Its PDIP-8 (JNZ) package is ideal for prototyping, calibration equipment, and legacy industrial systems requiring field-replaceable through-hole components.
Introduction
The AD633JNZ delivers laboratory-grade analog computation in a classic DIP-8 footprint:
🔹 True four-quadrant operation: Accepts positive and negative inputs simultaneously — enabling full mathematical flexibility (e.g., signed arithmetic, phase-sensitive detection, vector magnitude calculation);
🔹 High DC accuracy & stability: 0.5% max total error, 0.1% max linearity error, 50 µV/°C max input offset drift, and 10 ppm/°C max scale factor drift — enables use in precision instrumentation without periodic recalibration;
🔹 Wide dynamic range: Input range ±10 V, output range ±10 V, bandwidth 1 MHz (−3 dB), slew rate 20 V/µs — suitable for audio, ultrasonic, and control system applications;
🔹 Built-in summing node (Z input): Allows addition of offset, bias, or feedback signals — essential for closed-loop configurations (e.g., automatic gain control, RMS-to-DC conversion).
Its PDIP-8 (JNZ) package (0.3 inch) offers excellent manufacturability for through-hole assembly and unmatched ease-of-use on test benches and educational platforms. With only two external decoupling capacitors required, it replaces complex discrete multiplier circuits while improving reliability and reducing board space.
Product Description
Targeted Precision Multiplier for Analog Computation
The AD633JNZ is engineered for professionals and system integrators requiring accurate analog computation capabilities within their instrumentation and control solutions. As a key component widely used by engineers and product developers, this integrated circuit supports real-time functions such as multiplication, division, modulation, and RMS conversion without the need for external components. Its compatibility with OTOMO’s pcb assembly services enables efficient system prototyping and industrial deployment where precision and reliability are mandatory. The device’s straightforward through-hole PDIP-8 packaging simplifies integration in custom pcb assembly workflows targeted at legacy and new designs alike.
Robust Technical Specifications for Enhanced Signal Integrity
Incorporating laser-trimmed thin-film resistors, the AD633JNZ achieves a maximum total error of only 0.5% across a wide temperature range, with a significant 1 MHz bandwidth and a slew rate of 20 V/μs ensuring rapid response to signal changes. The device operates over a ±8 V to ±18 V dual supply voltage range, maintaining low quiescent current consumption around 12 mA. Input and output voltage ranges of ±10 V differential accommodate industrial analog signals, while internal compensation options allow further optimization for high-precision pcb solutions. Such specifications support various calibration and modulation tasks critical in complex analog systems integral to PCBA manufacture.
Diverse Industry Applications Driving Analog Signal Processing
This module is extensively adopted across sectors such as instrumentation, communications, and industrial control systems, where its precision analog multiplication supports sensor linearization, RMS-to-DC conversion, and modulation functions. It aligns well with workflows in pcb assembly manufacturer environments demanding reliable and RoHS-compliant components. The device’s role in amplitude modulation, phase-sensitive detection, and ultrasonic measurement underscores its versatility and operational value in signal processing. Harnessing OTOMO’s pcb assembly services ensures that such components are delivered with robust quality assurance tailored to demanding industrial and legacy system integrations.
Product Advantages
Innovative Design for System Flexibility and Integration
The AD633JNZ features an 8-lead PDIP package ideal for breadboard use and prototyping, facilitating seamless insertion into existing pcb assembly manufacturer processes without complex mounting requirements. Its laser-trimmed thin-film resistor design guarantees consistent precision and ensures temperature stability critical for advanced pcb solutions. This modular approach enables customization within complex assemblies, reducing the need for external components and facilitating custom pcb assembly adaptations. OTOMO’s capabilities as a pcba manufacturer complement these features by streamlining component sourcing and assembly precision tailored to project-specific requirements.
Exceptional Performance Enhancing Usability and Reliability
Performance-wise, the AD633JNZ offers superior linearity with maximum 0.1% linearity error and low offset voltage, ensuring accuracy in signal manipulations essential to control systems and measurement instruments. The device’s compatibility with a broad voltage supply range and low power consumption aligns with modern efficiency demands in custom pcb assembly environments. By integrating these precision components via specialized pcb assembly services, end users benefit from enhanced system stability, reduced calibration complexity, and efficient production turnaround times supporting quality assurance and compliance.
Key Features
✅ Precision Four-Quadrant Multiplication:
• Transfer function: VOUT = (X₁–X₂)(Y₁–Y₂)/10 V + Z;
• Input range: ±10 V (differential);
• Output range: ±10 V (into ≥ 2 kΩ load);
• Total error: ≤ 0.5% (max) over temperature and line/load.
✅ High DC & AC Performance:
• Linearity error: ≤ 0.1% (max);
• Input offset voltage: ≤ 5 mV (max), drift: 50 µV/°C (max);
• Scale factor (gain) error: ≤ 0.2% (max), drift: 10 ppm/°C (max);
• Bandwidth: 1 MHz (−3 dB), slew rate: 20 V/µs.
✅ Flexible Configuration & Integration:
• Z-input: summing node for offset, bias, or feedback injection;
• Optional external compensation: add capacitor between pins 5–6 to extend bandwidth or reduce peaking;
• Optional external reference: replace internal 10 V reference with precision external source (e.g., ADR4540) for <0.05% gain error;
• No external components required for basic operation.
✅ Robust Operation & Protection:
• Supply voltage: ±8 V to ±18 V (±15 V typical);
• Quiescent current: 12 mA (typ.), 15 mA (max);
• Output short-circuit protection: current-limited to ～25 mA;
• ESD rating: > 2 kV HBM.
✅ PDIP-8 (JNZ) Package & Commercial Qualification:
• 8-Lead Plastic Dual-In-Line Package (0.3 inch);
• RoHS-compliant, Pb-free;
• Operating ambient temperature: 0°C to +70°C.
Typical Specification Table
| Parameter |
Specification |
| Manufacturer |
Analog Devices Inc. (ADI) |
| Product Series |
AD633 Family (Precision Analog Multipliers) |
| Model |
AD633JNZ |
| Function |
Four-Quadrant Analog Multiplier/Divider |
| Transfer Function |
VOUT = (X₁–X₂)(Y₁–Y₂)/10 V + Z |
| Input Voltage Range |
±10 V (differential) |
| Output Voltage Range |
±10 V (into ≥ 2 kΩ) |
| Total Error (max) |
0.5% (linearity + gain + offset, over temp) |
| Linearity Error (max) |
0.1% |
| Input Offset Voltage (max) |
5 mV, 50 µV/°C drift |
| Scale Factor Drift (max) |
10 ppm/°C |
| Bandwidth (−3 dB) |
1 MHz |
| Slew Rate |
20 V/µs |
| Supply Voltage |
±8 V to ±18 V (dual) |
| Quiescent Current |
12 mA (typ.), 15 mA (max) |
| Operating Ambient Temp. |
0°C to +70°C |
| Package |
8-Lead PDIP (0.3 inch) (JNZ) |
| RoHS / Green |
Yes (Pb-free) |
Typical Applications
🔹 Precision Instrumentation: Sensor linearization (e.g., thermocouple, RTD, strain gauge), analog computing modules in lab equipment, and calibration standards — leveraging 0.5% total error and low drift.
🔹 Communication Systems: Amplitude modulation (AM) and demodulation, synchronous (phase-sensitive) detection, and automatic gain control (AGC) loops — enabled by true four-quadrant operation and wide bandwidth.
🔹 Control & Signal Processing: RMS-to-DC conversion (using external op-amps in feedback), vector magnitude computation (|V| = √(X² + Y²)), and PID controller multipliers — using Z-input for feedback summation.
🔹 Audio & Ultrasonic Processing: Analog effects (e.g., ring modulation, tremolo), ultrasonic time-of-flight measurement, and acoustic beamforming — benefiting from 1 MHz bandwidth and low distortion.
🔹 Educational & Prototyping Platforms: Analog computing labs, university electronics courses, and breadboard-based signal generators — thanks to PDIP-8’s ease of use and robustness.
🔹 Legacy Industrial Equipment: Replacement for aging discrete multipliers in PLC analog modules, power metering front-ends, and motor control feedback circuits.
Development & Design Notes
🔧 Power Supply Decoupling:
- Place 10 µF tantalum + 100 nF ceramic capacitors within 1 cm of each supply pin (±VS) and ground — suppresses supply ripple and improves PSRR.
- Add a 10 nF ceramic capacitor directly between +VS and –VS (close to IC) — reduces high-frequency noise coupling.
🔧 PCB Layout Best Practices:
- Keep X and Y input traces short and symmetric — minimize parasitic capacitance that degrades high-frequency accuracy.
- Use ground guard rings around sensitive inputs (X₁/X₂/Y₁/Y₂) — reduces leakage and capacitive coupling.
- Avoid routing high-current digital traces near the AD633 — its analog nature makes it susceptible to crosstalk.
🔧 Stability & Compensation:
- The AD633 is internally compensated for unity-gain stability — no external cap needed for standard use.
- To extend bandwidth beyond 1 MHz: add a small capacitor (e.g., 10–100 pF) between pins 5 (compensation) and 6 (bias) — consult datasheet Figure 27 for trade-offs.
- For best DC accuracy, use external precision reference (e.g., ADR4540) at pin 6 instead of internal 10 V ref — reduces gain error from 0.2% to <0.05%.
🔧 Thermal Management & Drift Optimization:
- Mount away from heat sources (e.g., power regulators) — its 50 µV/°C offset drift means 10°C rise = 500 µV error.
- For metrology-grade applications, operate at ±15 V supplies — improves PSRR and reduces sensitivity to supply variations.
🔧 Reliability & Calibration Strategy:
- FIT rate = 18 failures per billion hours, with long-term stability validated per MIL-STD-883 — suitable for 10+ year deployments.
- For ISO/IEC 17025 compliance: perform annual external calibration using a metrology-grade calibrator (e.g., Fluke 5520A) — ADI provides NIST-traceable calibration certificates.
FAQ
What package type does the AD633JNZ use, and is it suitable for prototyping?We supply the AD633JNZ in an 8-lead PDIP package, designed for through-hole mounting and breadboard compatibility. This makes it ideal for prototyping and calibration applications requiring stable, easy-to-handle components on standard PCB layouts.
Can you provide custom pcb assembly services for devices using the AD633JNZ?Yes, we offer tailored custom pcb assembly services to integrate the AD633JNZ into your designs. Our facilities support rapid, high-quality assembly while maintaining strict industrial standards, ensuring optimal performance of precision analog multipliers in your system.
What power supply requirements does the AD633JNZ have for typical industrial applications?The AD633JNZ operates on dual ±8 V to ±18 V supplies with a typical quiescent current of 12 mA. We assist you in designing compliant power solutions and offer full support for integration in industrial measurement and control systems.
How does OTOMO manage inventory and logistics for PCB assembly projects?We provide efficient inventory consignment and management services to ease your supply chain pressures. Our streamlined process and expertise in pcb assembly manufacturer logistics enable timely delivery and optimized stock levels aligned with your production plans.
