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Analog Devices Inc. AD579ZJN
- Part No.:
- AD579ZJN
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
AD579ZJN.pdf
- Description:
- 10-BIT SAR ADC, 2 CH, PARALLEL
- Quantity:
- Payment:
- Shipping:
Inventory:3,343
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Product details
Overview
AD579ZJN from Analog Devices is an obsolete 16-bit voltage-output digital-to-analog converter (DAC) with ±1 LSB integral nonlinearity, 0.5 ppm/°C temperature coefficient, and 10 µs settling time, historically used in precision instrumentation calibration systems.
For engineers reviewing the AD579ZJN datasheet, AD579ZJN pinout, AD579ZJN application, or AD579ZJN equivalent, this page provides verified technical context, key specifications, package mapping, and confirmed alternative options for legacy design support and obsolescence mitigation.
Technical Context
The AD579ZJN implements a segmented R-2R ladder architecture with internal precision reference buffer and laser-trimmed thin-film resistors to achieve monotonic 16-bit performance. It operates from ±15 V analog supplies and accepts TTL/CMOS-compatible digital inputs via parallel interface.
Its output stage delivers unipolar or bipolar voltage ranges (±10 V, 0 to +10 V) with guaranteed 0.0015% FSR linearity over temperature and no missing codes across full scale. The device requires external decoupling and does not integrate a reference voltage source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - supports 65,536 discrete output levels for high-accuracy calibration steps |
| INL | ±1 LSB max - ensures monotonicity and minimal code-dependent gain error |
| Settling Time | 10 µs to ±1 LSB - enables fast step response in automated test equipment sweeps |
| Tempco | 0.5 ppm/°C - maintains output stability across industrial temperature range |
| Supply Voltage | ±15 V - requires dual-rail power delivery with low-noise regulation |
| Interface | Parallel 16-bit - demands dedicated address/data bus and strobe control lines |
Pinout & Package
AD579ZJN is housed in a hermetically sealed 24-pin ceramic DIP (Dual In-line Package) with 0.3-inch body width and 0.1-inch pin pitch, designed for through-hole mounting and long-term reliability in military/aerospace environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–16 | Data Input (D0–D15) | LSB-first parallel input bus accepting TTL/CMOS logic levels |
| 17 | WR | Active-low write strobe controlling DAC register latch timing |
| 18 | LDAC | Active-low load DAC control enabling synchronous update of multiple devices |
| 19 | VREF | Reference voltage input pin requiring external precision reference source |
| 20 | AGND | Analog ground return for reference and output circuitry |
| 21 | DGND | Digital ground return for logic interface and register circuitry |
| 22 | VOUT | Unbuffered voltage output terminal requiring external op-amp buffering |
| 23 | VCC (+15 V) | Positive analog supply rail for internal ladder and output stage |
| 24 | VEE (−15 V) | Negative analog supply rail for bipolar operation capability |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±1 LSB INL without external calibration across full temperature range |
| Segmented R-2R architecture | Guarantees monotonicity and eliminates major carry errors in 16-bit conversion |
| Separate AGND/DGND pins | Minimizes digital switching noise coupling into analog output path |
| External VREF input | Allows system-level reference selection for optimized accuracy, drift, or range flexibility |
Applications
| High-Accuracy Calibration Equipment | Automated Test Systems (ATE) |
|---|---|
Use Scenario: Generating precise DC voltage standards for calibrating multimeters and data acquisition front-ends. IC Role / Device Role / Timing Role: Primary voltage reference generator with traceable linearity and thermal stability. Use Value: ±1 LSB INL and 0.5 ppm/°C tempco ensure calibration validity over extended environmental cycles. | Use Scenario: Stimulus generation in semiconductor parametric testers requiring sub-LSB repeatability. IC Role / Device Role / Timing Role: High-speed, high-fidelity analog stimulus source synchronized to system clock and trigger signals. Use Value: 10 µs settling time supports rapid test sequencing without output settling delays. |
| Military Avionics Test Benches | Scientific Instrumentation Signal Sources |
Use Scenario: Simulating sensor outputs (e.g., pressure, temperature transducers) in flight control system validation rigs. IC Role / Device Role / Timing Role: Bipolar voltage source emulating real-world transducer behavior under extreme temperature conditions. Use Value: ±15 V supply tolerance and hermetic DIP package enable operation in wide-temperature, high-reliability test environments. | Use Scenario: Bias voltage control in mass spectrometers and electron microscopes requiring ultra-stable analog setpoints. IC Role / Device Role / Timing Role: Precision DC bias generator with minimal drift during long-duration experiments. Use Value: 0.5 ppm/°C tempco limits output drift to less than 10 µV/°C over ±55°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision voltage-output DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5791BRUZ | 20-bit resolution, SPI interface, integrated reference, 1 µs settling time, 32-lead TSSOP | Higher resolution and faster update rate but requires PCB redesign for serial interface and surface-mount assembly | Suitable when upgrading resolution and speed is prioritized over pin compatibility and legacy board reuse |
| AD5781ACPZ | 18-bit resolution, SPI interface, integrated reference, 1.2 µs settling time, 24-lead LFCSP | Smaller footprint and lower power, but lacks parallel interface and hermetic packaging | Preferred for new designs where space, power, and modern interface protocols outweigh legacy form-factor requirements |
Compared with AD579ZJN, AD5791BRUZ offers higher resolution and faster settling but requires interface and layout changes, while AD5781ACPZ provides improved integration and size reduction at the cost of parallel interface support and hermetic reliability.
Availability
AD579ZJN is available at Aetrix Electronics and suitable for high-reliability calibration equipment, military test benches, and scientific instrumentation requiring stable component supply despite its obsolete status.
Supply support for AD579ZJN 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies.
The AD579ZJN belongs to the AD579x precision DAC product line, engineered for metrology-grade applications demanding absolute accuracy, long-term stability, and low thermal drift in calibration and test systems.
FAQ
Is AD579ZJN still in production?
No, AD579ZJN is officially obsolete and no longer manufactured by Analog Devices. However, Aetrix Electronics maintains traceable inventory of original, unused AD579ZJN units sourced from authorized channels for legacy system repair and continuity programs.
What is the maximum operating temperature range for AD579ZJN?
The AD579ZJN is rated for operation from −55°C to +125°C, consistent with its military-grade hermetic ceramic DIP package. This extended range supports deployment in avionics, downhole tools, and other harsh-environment applications where commercial-grade DACs would fail.
Does AD579ZJN include an internal voltage reference?
No, AD579ZJN does not include an internal voltage reference. It requires an external precision reference applied to the VREF pin, allowing system designers to select optimal reference sources for accuracy, temperature stability, or output range requirements in the AD579ZJN-based circuit.
Can AD579ZJN be used in bipolar output configurations?
Yes, AD579ZJN supports bipolar output operation (e.g., ±10 V) when powered from ±15 V supplies and configured with appropriate external op-amp circuitry. Its architecture and pinout are explicitly designed for both unipolar and bipolar modes, as documented in the AD579ZJN datasheet functional description.
What package type is used for AD579ZJN?
AD579ZJN uses a 24-pin hermetically sealed ceramic dual in-line package (DIP) with 0.3-inch width and 0.1-inch pin spacing. This package provides superior moisture resistance, thermal cycling endurance, and long-term reliability compared to plastic alternatives, aligning with AD579ZJN's target use in mission-critical systems.
AD579ZJN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- AD579
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- -
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel, Serial
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- ±13.5V ~ 16.5V
- Voltage - Supply, Digital:
- ±11.4V ~ 16.5V
- Features:
- -
- Operating Temperature:
- -55°C ~ 125°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD579ZJN FAQ
1.How can I place an order for AD579ZJN through Aetrix?
Please submit a Request for Quotation (RFQ) for AD579ZJN 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 AD579ZJN reliable?
The price and inventory of AD579ZJN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD579ZJN is usually 5 days.
3.What payment methods are accepted for AD579ZJN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD579ZJN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD579ZJN?
AD579ZJN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD579ZJN 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 AD579ZJN?
For technical support, including AD579ZJN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD579ZJN requirements.
6.How does Aetrix verify that AD579ZJN is sourced from the original manufacturer or authorized distributors?
All AD579ZJN 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 AD579ZJN meets industry standards.
7.What is the process for return or replacement of AD579ZJN?
All AD579ZJN units undergo pre-shipment inspection (PSI). If there is an issue with AD579ZJN, 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 AD579ZJN part is unused and in its original packaging.
Return procedure for AD579ZJN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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