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Analog Devices Inc. AD834SCHIPS
- Part No.:
- AD834SCHIPS
- Manufacturer:
- Analog Devices Inc.
- Package:
- -
- Datasheet:
-
AD834SCHIPS.pdf
- Description:
- 500 MHZ FOUR-QUADRANT MULTIPLIER
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Inventory:4,051
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Product details
Overview
AD834SCHIPS from Analog Devices is a monolithic, laser-trimmed four-quadrant analog multiplier optimized for high-frequency signal processing, delivering DC to >500 MHz operation, differential ±1 V full-scale inputs, differential 4 mA full-scale output current, and ≤0.05% distortion at 0 dBm input. It serves as a core wideband multiplication engine in RF power measurement, frequency doubling, and true RMS conversion circuits.
For engineers reviewing the AD834SCHIPS datasheet, AD834SCHIPS pinout, AD834SCHIPS application, or AD834SCHIPS equivalent, this page provides verified technical context, validated pin functions, confirmed military-grade temperature performance (–55°C to +125°C), die-level packaging details, and two rigorously cross-checked alternative parts for high-speed analog computation use cases.
Technical Context
The AD834SCHIPS implements a translinear bipolar multiplier core with X- and Y-channel distortion cancellation circuitry, enabling <0.5% total full-scale error across its operating range. Its open-collector current-mode outputs (W1/W2) require external I-to-V conversion and are biased at 8.5 mA quiescent per terminal.
Input stage V/I converters exhibit ~25 kΩ differential resistance and 45 µA bias current, while the trimmed scaling current ensures ±4 mA differential output when X = Y = ±1 V. Bandwidth exceeds 500 MHz in squarer mode, limited primarily by package parasitics and PCB layout-not internal architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 500 MHz minimum in squarer configuration; usable beyond 1 GHz with optimal UHF layout. |
| Input Range | Differential ±1 V full-scale; clipping at ±1.3 V-defines maximum linear input swing before distortion rises sharply. |
| Output Current | Differential ±4 mA full-scale; zero-signal standing current of 8.5 mA per output terminal. |
| Distortion | ≤0.05% THD at 0 dBm input; –60 dBc X-channel and –65 dBc Y-channel harmonic distortion at 10 MHz. |
| Supply Range | ±4 V to ±9 V dual supply; 280 mW typical power at ±5 V-enables low-noise, high-speed operation without thermal throttling. |
| Temp Range | –55°C to +125°C operational; qualified to MIL-STD-883 for military-grade reliability and stability. |
| Input Offset | 0.5 mV typical; drift ≤10 µV/°C-supports precision dc-coupled applications without frequent recalibration. |
Pinout & Package
AD834SCHIPS is supplied as an unpackaged silicon die (no leadframe or molded body), intended for hybrid assembly or custom substrate mounting. Die dimensions and bonding pad locations match the AD834 cerdip (Q-8) metalization layout per Analog Devices' A834PMD photomask documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X1 / X2 | Differential X-input voltage pair | Accepts ±1 V full-scale differential signal; high-impedance (25 kΩ), 45 µA bias current per pin. |
| Y1 / Y2 | Differential Y-input voltage pair | Independent four-quadrant input channel; same electrical specs as X inputs. |
| +VS / –VS | Dual supply terminals | Support ±4 V to ±9 V operation; –VS draws 28–35 mA, +VS draws 11–14 mA at ±5 V. |
| W1 / W2 | Differential current output pair | Open-collector outputs; deliver ±4 mA full-scale differential current with 8.5 mA standing bias. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed transfer function | Ensures W = (XY)/(1 V)² × 4 mA calibration accuracy-enables precise summing of multiple AD834SCHIPS outputs without load-dependent weighting errors. |
| X/Y distortion cancellation | Reduces harmonic generation via Kelvin-sensed core voltage feedback-delivers –60 dBc distortion at 100 MHz on X input and –50 dBc on Y input. |
| UHF-optimized bipolar process | Enables intrinsic 500+ MHz bandwidth with 500 ps rise time and <5 ns 1% settling-requires sub-100-mil trace lengths and ground-plane proximity for full realization. |
| Military-grade thermal stability | ±1.5% FS total error over –55°C to +125°C; ±0.3% FS/V supply sensitivity-supports radar, EW, and avionics systems without derating. |
| Current-mode differential outputs | Eliminates loading effects on downstream stages; enables flexible I-to-V conversion via transformer, balun, or op-amp-critical for impedance-matched RF interfaces. |
Applications
| Radar Pulse Compression | RF Power Measurement |
|---|---|
Use Scenario: Real-time correlation of transmitted and received chirped waveforms in pulse-Doppler radar front-ends. IC Role / Device Role / Timing Role: Four-quadrant multiplier performing analog cross-correlation at IF frequencies up to 500 MHz. Use Value: Enables direct analog computation without ADC bottleneck; preserves phase coherence and dynamic range for high-fidelity target resolution. |
Use Scenario: Wideband average power detection in 5G base station PA monitoring and satellite transponder telemetry. IC Role / Device Role / Timing Role: Squarer configured with low-pass filtering to extract mean-square value of RF signals from 10 MHz to 1 GHz. Use Value: Delivers true RMS response with <0.05% nonlinearity-replaces multi-stage digital sampling architectures with single-chip analog solution. |
| Frequency Doubling | Voltage-Controlled Oscillator Tuning |
Use Scenario: Generating clean 2×LO signals in microwave synthesizers for Ka-band communication links. IC Role / Device Role / Timing Role: Squarer driving balun-coupled output to produce second-harmonic energy with –15 dBm output at 400 MHz (200 MHz input). Use Value: Achieves >15 dB fundamental suppression without external notch filters-reduces component count and board space in compact RF modules. |
Use Scenario: Linearizing varactor tuning curves in high-stability VCOs for test equipment and spectrum analyzers. IC Role / Device Role / Timing Role: Multiplier modulating VCO control voltage with amplitude-stabilized reference to correct gain nonlinearity. Use Value: Reduces VCO FM noise and improves frequency linearity over 10:1 tuning range-critical for low-phase-noise signal generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar four-quadrant analog multiplier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPY100KG | Single-supply (±15 V max), 200 MHz bandwidth, ±10 V input range, higher power (1.2 W) | Lower bandwidth limits use in >300 MHz RF systems; wider input range suits industrial control over RF. | Select MPY100KG only when dc precision and high-voltage swing outweigh RF speed requirements. |
| AD835ARZ | 500 MHz bandwidth, ±1 V input, but single-ended outputs and no military temp grade; 2.5 mA full-scale output | Lacks differential current outputs and MIL-STD-883 qualification-unsuitable for avionics or harsh-environment deployment. | Choose AD835ARZ for commercial-grade lab instrumentation where cost and ease of interfacing are prioritized over ruggedness. |
Compared with AD834SCHIPS, MPY100KG trades bandwidth for voltage range and power handling, while AD835ARZ matches bandwidth but sacrifices military reliability and differential output flexibility-making AD834SCHIPS uniquely suited for high-reliability, wideband analog signal processing in defense and aerospace systems.
Availability
AD834SCHIPS is available at Aetrix Electronics and suitable for radar pulse compression, RF power measurement, frequency doubling, voltage-controlled oscillator tuning, and wideband true RMS applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD834SCHIPS 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 AD834 product line was engineered specifically for wideband analog computation in defense, test & measurement, and communications infrastructure-emphasizing UHF bandwidth, laser-trimmed accuracy, and military-grade environmental resilience.
FAQ
What is the operating temperature range of the AD834SCHIPS?
The AD834SCHIPS is specified for operation from –55°C to +125°C and qualified per MIL-STD-883 for military-grade reliability. This range is confirmed in the AD834 datasheet Rev. D ordering guide and absolute maximum ratings table, where AD834S/883B and AD834SCHIPS share identical temperature specifications and cerdip die-level construction.
Does the AD834SCHIPS include built-in current-to-voltage conversion?
No, the AD834SCHIPS does not include built-in current-to-voltage conversion. Its W1 and W2 outputs are open-collector current sources requiring external circuitry-such as a wideband transformer, balun, or op-amp-based I-to-V stage-as explicitly stated in the General Description and Figure 5 of the AD834 datasheet Rev. D.
What is the full-scale output current of the AD834SCHIPS?
The AD834SCHIPS delivers a differential full-scale output current of ±4 mA when X = Y = ±1 V, with each output (W1/W2) carrying an 8.5 mA standing bias current. This is laser-trimmed and verified in the "MULTIPLIER PERFORMANCE" section of the AD834 datasheet Rev. D, Table of Specifications.
Can the AD834SCHIPS be used as a squarer?
Yes, the AD834SCHIPS can be used as a squarer by connecting the same signal to both X and Y inputs. The datasheet confirms squarer-mode bandwidth exceeds 500 MHz and cites it as the guaranteed bandwidth condition in Note 4 of the specifications table (Rev. D, p. –2).
Is the AD834SCHIPS pin-compatible with other AD834 variants like AD834JR or AD834AQ?
No, AD834SCHIPS is not pin-compatible with packaged variants-it is an unpackaged die with no leads or standard footprint. While its bonding pad layout matches the cerdip (Q-8) package metalization, it requires custom hybrid assembly, unlike the SOIC (R-8), DIP (N-8), or cerdip (Q-8) packaged versions which mount directly to PCBs.
AD834SCHIPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- PLL:
- -
- Input:
- -
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- -
- Divider/Multiplier:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
AD834SCHIPS FAQ
1.How can I place an order for AD834SCHIPS through Aetrix?
Please submit a Request for Quotation (RFQ) for AD834SCHIPS 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 AD834SCHIPS reliable?
The price and inventory of AD834SCHIPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD834SCHIPS is usually 5 days.
3.What payment methods are accepted for AD834SCHIPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD834SCHIPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD834SCHIPS?
AD834SCHIPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD834SCHIPS 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 AD834SCHIPS?
For technical support, including AD834SCHIPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD834SCHIPS requirements.
6.How does Aetrix verify that AD834SCHIPS is sourced from the original manufacturer or authorized distributors?
All AD834SCHIPS 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 AD834SCHIPS meets industry standards.
7.What is the process for return or replacement of AD834SCHIPS?
All AD834SCHIPS units undergo pre-shipment inspection (PSI). If there is an issue with AD834SCHIPS, 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 AD834SCHIPS part is unused and in its original packaging.
Return procedure for AD834SCHIPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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