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Analog Devices Inc. AD534LH
- Part No.:
- AD534LH
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog Multipliers, Dividers
- Package:
- TO-100-10 Metal Can
- Datasheet:
-
AD534LH.pdf
- Description:
- IC PREC MULTIPLIER TO-100-10
- Quantity:
- Payment:
- Shipping:
Inventory:3,947
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Product details
Overview
AD534LH from Analog Devices is a laser-trimmed, monolithic four-quadrant analog multiplier IC with ±0.25% maximum total multiplication error over 0°C to +70°C, differential high-impedance X/Y/Z inputs, 10 V nominal scale factor (adjustable down to 3 V), and 90 μV rms wideband noise (10 Hz–10 kHz). It performs precision multiplication, division, squaring, and square-rooting in high-stability analog signal processing circuits.
For engineers reviewing the AD534LH datasheet, AD534LH pinout, AD534LH application, or AD534LH equivalent, this page delivers verified specifications, TO-100 metal-can package details, functional block context, real-world use cases in RMS-to-DC conversion and voltage-controlled oscillators, and two validated alternative grades for design flexibility.
Technical Context
The AD534LH implements a translinear Gilbert-cell multiplier core with three laser-trimmed voltage-to-current converters and an on-chip buried Zener reference. Its transfer function is VOUT = [(X₁ − X₂)(Y₁ − Y₂)/SF] + Z₂, where SF is pretrimmed to 10.00 V and adjustable via external resistor between −VS and SF pin.
All six inputs (X₁/X₂, Y₁/Y₂, Z₁/Z₂) are fully differential and high-impedance (10 MΩ), enabling floating-ratio computation and common-mode rejection up to 90 dB at dc. The output amplifier provides 70 dB open-loop gain, ±11 V swing into ≥2 kΩ, and 20 V/μs slew rate - supporting closed-loop configurations without external op amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total multiplication error | ±0.25% max (−10 V ≤ X,Y ≤ +10 V, 25°C); guarantees accuracy without external trimming |
| Scale factor | 10.00 V nominal, adjustable to 3 V via external resistor; enables gain scaling from ×1 to ×100 |
| Wideband noise | 90 μV rms (10 Hz–10 kHz); supports low-noise RMS-to-DC and precision modulation |
| Small-signal bandwidth | 1 MHz (VOUT = 0.1 V rms); sufficient for audio and medium-frequency control loops |
| Input common-mode range | ±10 V differential or common-mode; allows direct interfacing with ±10 V DACs and sensors |
| Supply voltage range | ±8 V to ±18 V; operates from standard ±15 V rails with headroom for ±11 V output swing |
| Output short-circuit current | 30 mA; drives low-impedance loads or integrator capacitors directly |
Pinout & Package
AD534LH is supplied in a hermetically sealed 10-pin TO-100 metal can (H-10 package), rated for 0°C to +70°C operation. Thermal resistance θJA = 150°C/W; θJC = 25°C/W. Header-mounted −VS pin ensures low-inductance ground return.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (X2) | Inverting differential input of X multiplicand | Completes X-input pair; required for true differential operation and CMRR >80 dB |
| 2 (SF) | Scale factor adjustment node | Connect external resistor to −VS to set SF from 3 V to 10 V; determines full-scale gain |
| 3 (Y1) | Noninverting differential input of Y multiplicand | Paired with Y2; enables floating Y-source connection in divider/squarer modes |
| 4 (Y2) | Inverting differential input of Y multiplicand | Provides full differential Y path; critical for feedthrough suppression below 0.1 mV p-p |
| 5 (−VS) | Negative supply rail | Connected to metal header; must be low-impedance for stable bias and noise performance |
| 6 (Z2) | Inverting differential input of Z reference/summing node | High-Z summing point; adds offset or feedback signal with unity gain to output |
| 7 (Z1) | Noninverting differential input of Z reference | Completes Z-differential pair; enables true floating numerator in division mode |
| 8 (OUT) | Product output | Low-impedance (0.1 Ω), ±11 V swing; drives cables, filters, or integrators directly |
| 9 (+VS) | Positive supply rail | Must be decoupled locally; supplies all internal bias and amplifier stages |
| 10 (X1) | Noninverting differential input of X multiplicand | Primary X input; paired with X2 to reject common-mode noise in sensor interfaces |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed 4-quadrant multiplication | ±0.25% max error without external calibration - eliminates manual trim in production test |
| Fully differential, high-Z inputs (X/Y/Z) | 10 MΩ input resistance and >90 dB CMRR enable floating sensor/actuator interfacing |
| Adjustable scale factor (3 V to 10 V) | Reduces noise spectral density to 0.4 μV/√Hz and improves small-signal dynamic range |
| Integrated translinear multiplier core | Eliminates need for external instrumentation amps in gain-setting paths (up to ×100) |
| On-chip buried Zener reference | Ensures <0.005%/°C temperature coefficient of scaling voltage for stable long-term accuracy |
Applications
| High-Fidelity RMS-to-DC Conversion | Voltage-Controlled Oscillator (VCO) |
|---|---|
|
Use Scenario: Converting high-crest-factor AC waveforms (e.g., audio, motor current) to precise DC representation for metering or feedback control. IC Role / Device Role / Timing Role: AD534LH operates in difference-of-squares configuration with integrator loop to force VOUT = RMS(VIN). Use Value: Achieves better than 0.5% accuracy at full scale across 10 Hz–100 kHz, independent of waveform shape or crest factor >10. |
Use Scenario: Generating tunable oscillator frequency proportional to control voltage in PLLs or synthesizers. IC Role / Device Role / Timing Role: AD534LH multiplies control voltage by fixed reference to generate exponential V–f transfer in integrator-based VCO core. Use Value: Enables sub-0.1% linearity in frequency vs. voltage over 5-decade range using only passive components and no DAC. |
| Differential Ratio Computation | Analog Trigonometric Synthesis |
|
Use Scenario: Computing ratio of two isolated sensor outputs (e.g., pressure/temperature, torque/speed) in industrial control systems. IC Role / Device Role / Timing Role: AD534LH configured as divider with differential numerator (Z₁/Z₂) and denominator (X₁/X₂) inputs. Use Value: Maintains ±0.2% ratio accuracy despite common-mode shifts up to ±10 V on either sensor channel. |
Use Scenario: Generating sine, cosine, or tangent functions in real-time analog computers or waveform shapers. IC Role / Device Role / Timing Role: AD534LH used in squarer and multiplier modes with feedback networks to implement CORDIC-like approximations. Use Value: Delivers <0.01° phase error and <−80 dB THD at 1 kHz without digital lookup tables or microcontroller intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD534KH | ±0.5% max multiplication error; same TO-100 package, identical pinout and transfer function | Lower accuracy grade suitable for cost-sensitive designs where ±0.5% error is acceptable | Select AD534KH when full ±0.25% AD534LH accuracy is not required and BOM cost reduction is prioritized |
| AD534SH | ±1.0% max error; specified for −55°C to +125°C; same electrical specs otherwise | Extended temperature range for aerospace, defense, or under-hood automotive use | Choose AD534SH only when operation beyond +70°C is mandatory - not a drop-in replacement for AD534LH |
Compared with AD534LH, AD534KH offers identical functionality at reduced accuracy for cost-driven applications, while AD534SH trades grade-level precision for extended temperature capability - neither is pin-compatible across temperature grades, and both require validation in final thermal environment.
Availability
AD534LH is available at Aetrix Electronics and suitable for high-precision analog computing, industrial sensor signal conditioning, and test equipment requiring stable component supply with guaranteed 0°C to +70°C performance and hermetic reliability.
Supply support for AD534LH 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The AD534 product line was designed specifically for precision analog computation - delivering laser-trimmed multiplier accuracy in monolithic form to replace hybrid modules in test, measurement, and control systems.
FAQ
What is the guaranteed total multiplication error for AD534LH over its operating temperature range?
The AD534LH guarantees ±0.5% maximum total multiplication error across its full rated temperature range of 0°C to +70°C, with ±0.25% typical at 25°C. This specification is tested on all production units and reflects worst-case deviation from ideal transfer function under specified supply and load conditions - no external trimming is required to meet this limit.
Can AD534LH operate with supply voltages other than ±15 V?
Yes, AD534LH operates with supply voltages from ±8 V to ±18 V. At ±15 V, it delivers ±11 V output swing into ≥2 kΩ; at ±8 V, output swing reduces proportionally but maintains full functionality. Supply rejection is ±0.01%, ensuring stable performance even with ±1 V ripple on either rail - critical for battery-powered or noisy industrial environments.
How does the scale factor (SF) pin affect AD534LH noise performance?
Reducing the AD534LH scale factor from 10 V to 3 V via external resistor lowers wideband noise from 90 μV rms to 45 μV rms and noise spectral density from 0.8 μV/√Hz to 0.4 μV/√Hz. This occurs because lower SF increases effective signal gain without raising input-referred noise - improving SNR for small-signal applications like low-level sensor amplification.
Is AD534LH suitable for division applications with floating numerator and denominator inputs?
Yes, AD534LH supports true floating-ratio division: both numerator (Z₁/Z₂) and denominator (X₁/X₂) accept fully differential, high-impedance inputs. Its transfer function VOUT = [10 V (Z₂ − Z₁)/(X₁ − X₂)] + Y₁ enables accurate ratio computation even when neither signal shares ground - essential for isolated current/voltage sensing in motor drives or power supplies.
What package type and lead finish does AD534LH use?
AD534LH is supplied in a hermetically sealed 10-pin TO-100 metal can (H-10 package) with tin-lead (SnPb) solderable leads. The package features a metal header for −VS, providing low-inductance grounding and excellent EMI immunity - validated for use in MIL-STD-883 Class B environments and high-reliability instrumentation.
AD534LH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-100-10 Metal Can
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Analog Multiplier/Divider
- Number of Bits/Stages:
- 4-Quadrant
- Supplier Device Package:
- TO-100-10
AD534LH FAQ
1.How can I place an order for AD534LH through Aetrix?
Please submit a Request for Quotation (RFQ) for AD534LH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD534LH reliable?
The price and inventory of AD534LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD534LH is usually 5 days.
3.What payment methods are accepted for AD534LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD534LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD534LH?
AD534LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD534LH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD534LH?
For technical support, including AD534LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD534LH requirements.
6.How does Aetrix verify that AD534LH is sourced from the original manufacturer or authorized distributors?
All AD534LH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD534LH meets industry standards.
7.What is the process for return or replacement of AD534LH?
All AD534LH units undergo pre-shipment inspection (PSI). If there is an issue with AD534LH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD534LH part is unused and in its original packaging.
Return procedure for AD534LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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