BURR-BROWN 31531-3779A Converter Double Pcb Card Edge Conn 32 A/d FR-4 5V

( Brand: Burr-brown ), ( Manufacturer Part Number: 31531-3779A ), ( Part Type: Converter Card ), ( Mounting Style: Edge Connector ), ( Pcb Type: Double-sided Pcb ), ( Series: 32 A/d Converter ), ( Number Of Tie-points: S10 ), ( Operating Voltage: 5 V ), ( Item Height: 1.6 Mm ), ( Material: Fr-4 ), ( Item Length: 177.8 Mm ), ( Item Width: 106.68 Mm )

Review BURR BROWN 32 A/d Converter Double sided Fr-4 Pcb Card 5v Edge Conn

The **Burr-Brown 31531-3779A 32-Channel Analog-to-Digital Converter (ADC) Double-Sided FR-4 PCB Card** is a high-performance, precision-engineered module designed for demanding signal processing applications requiring rapid, accurate digitization of analog inputs. This compact yet robust printed circuit board (PCB) card integrates a **32-channel simultaneous sampling ADC subsystem**, leveraging the proven architecture of the TI (Texas Instruments) Burr-Brown 31531 series, which is renowned for its exceptional dynamic performance, low noise, and high-speed conversion capabilities. Built on a **double-sided FR-4 substrate**, the card ensures mechanical stability and thermal conductivity, making it ideal for embedded systems, industrial automation, and data acquisition platforms where reliability and consistency are paramount.

The PCB card operates seamlessly within a **5V power supply environment**, featuring a **5V edge connector** for straightforward integration into larger systems, whether in rack-mounted enclosures, modular instrumentation, or custom chassis designs. Each of the 32 channels is equipped with **high-precision, low-drift input amplifiers** and **differential signal conditioning circuitry**, enabling the conversion of analog voltages with minimal noise and distortion. The design incorporates **shielded traces and ground planes** to mitigate electromagnetic interference (EMI), ensuring clean signal integrity even in noisy industrial or RF-rich environments. Additionally, the card s **low-power consumption** and **compact form factor** make it an efficient choice for space-constrained applications without sacrificing performance.

This module is particularly well-suited for applications such as **scientific instrumentation, medical imaging, motor control systems, and high-speed data logging**, where the ability to simultaneously sample multiple analog signals with high resolution and accuracy is critical. The Burr-Brown 31531-3779A s **synchronous sampling capability** allows for precise timing alignment across all channels, reducing phase errors and enabling seamless interfacing with digital signal processors (DSPs) or field-programmable gate arrays (FPGAs). Whether deployed in a laboratory setting for research-grade measurements or in an industrial control system for real-time monitoring, this PCB card delivers the robustness and precision required to meet the most exacting performance demands.

**Pros and Cons of buying a Burr-Brown 31531-3779A 32-Bit ADC Double-Sided FR-4 PCB Card (5V Edge Connect)**

### **Pros**

1. **High Precision and Performance**

The Burr-Brown 31531-3779A is a high-end analog-to-digital converter (ADC) known for its exceptional accuracy, low noise, and wide dynamic range. It is designed for demanding applications such as data acquisition, signal processing, and industrial measurement systems where precision is critical.

2. **Reliability and Durability**

As a TI (Texas Instruments) product, this ADC module benefits from robust engineering, extensive testing, and a proven track record in industrial and scientific applications. The FR-4 PCB material provides good mechanical stability and resistance to environmental factors compared to more flexible substrates.

3. **Compatibility with 5V Logic**

The module is designed for 5V edge connector compatibility, making it easier to integrate into systems that use standard 5V logic levels. This reduces the need for additional level-shifting circuitry, simplifying design and reducing potential points of failure.

4. **Double-Sided PCB Design**

A double-sided PCB allows for more complex routing and higher component density, which can improve signal integrity and reduce electromagnetic interference (EMI). This is particularly useful in high-speed or high-precision applications.

5. **Proven Legacy Product**

Burr-Brown (now part of TI) has been a leader in high-performance analog components for decades. This module is likely well-documented, with available datasheets, application notes, and community support, making troubleshooting and integration easier.

6. **Potential Long-Term Availability**

Since this is a legacy or discontinued product, it may still be available through distributors or TI s archive programs. This can be advantageous if you need a specific part that is no longer in active production but is still functional and reliable.

7. **Modular and Reusable**

The PCB card design allows for easy integration into larger systems or test setups. If your application requires flexibility, this modular approach can simplify upgrades or modifications.

---

### **Cons**

1. **Discontinued or Obsolete Status**

- **Limited stock availability** Suppliers may have only a finite number of units in inventory, risking stockouts.

- **Higher long-term costs** As demand fluctuates, prices may rise due to scarcity.

- **No future support** TI will not provide new revisions, updates, or official support for this specific part.

2. **Potential for Counterfeit Parts**

Discontinued components are more susceptible to counterfeit or refurbished parts entering the supply chain. This can lead to unreliable performance, safety risks, or compatibility issues if the part is not genuine.

3. **Compatibility Challenges**

While the 5V edge connector is a plus, older or legacy systems may require additional interfacing (e.g., signal conditioning, power regulation) that isn t immediately obvious. Ensure your system can handle the ADC s input/output requirements (e.g., reference voltage, sampling rate, or digital interface protocols).

4. **No Active Development or Improvements**

Since this is an older design, it may lack features or optimizations found in newer ADCs (e.g., improved noise performance, lower power consumption, or digital interfaces like SPI/LVDS). If your application could benefit from modern advancements, you might need to consider alternatives.

5. **FR-4 PCB Limitations**

While FR-4 is durable, it may not be ideal for extreme environmental conditions (e.g., high humidity, temperature fluctuations, or chemical exposure). If your application requires more robust materials (e.g., PTFE or ceramic substrates), this could be a drawback.

6. **Integration Complexity**

Double-sided PCBs can be more challenging to design around, especially if you need to add or modify components. Soldering or reworking may require specialized skills, and signal routing could introduce issues if not carefully planned.

7. **Cost vs. Alternatives**

Depending on the market, a discontinued part may be more expensive than a modern equivalent with similar or better specifications. Evaluating whether the trade-offs (e.g., reliability vs. cost) justify purchasing this specific module is important.

---

### **Conclusion**

The Burr-Brown 31531-3779A is a high-quality, precision ADC module that excels in applications where reliability, accuracy, and legacy compatibility are critical. Its double-sided FR-4 PCB design and 5V edge connector make it a practical choice for systems that require a proven, modular solution. However, its discontinued status introduces risks related to availability, cost, and potential counterfeit parts.

If you have a specific need for this exact part such as maintaining an existing system, working with legacy hardware, or requiring a component that is no longer in production it may still be the best option despite its limitations. On the other hand, if your application can accommodate modern ADCs with improved features (e.g., lower power, higher speed, or better digital interfaces), investing in a newer part could offer long-term benefits in terms of support, cost, and performance.

---

### **Recommendation**

1. **Verify Availability and Source Carefully**

Before purchasing, confirm that the part is genuine and available from a reputable distributor (e.g., Digi-Key, Mouser, or TI s authorized resellers). Check for counterfeit warnings and consider purchasing from suppliers with return policies or authenticity guarantees.

2. **Assess Long-Term Needs**

If this is for a new project, weigh the pros and cons against modern alternatives. TI offers newer ADCs (e.g., the **TI ADC161S101**, **ADS1256**, or **ADS1115**) that may provide better performance, lower power consumption, or easier integration. If you re maintaining an existing system, the 31531-3779A may still be the best fit.

3. **Budget for Potential Scarcity**

Account for the possibility of price increases or stockouts. If this is a critical component, consider purchasing extra units or exploring backup options (e.g., a compatible alternative) to avoid future disruptions.

4. **Document and Test Thoroughly**

Since this is a legacy part, document its behavior in your system and test it thoroughly to ensure it meets your requirements. Keep records of the part s serial number or batch for future reference.

5. **Consider a Modern Alternative if Possible**

If your application allows flexibility, evaluate whether a newer ADC from TI or another manufacturer (e.g., Analog Devices, Maxim Integrated, or Linear Technology) could meet your needs with better long-term support and features.

Purchase the Burr-Brown 31531-3779A only if it is absolutely necessary for your application and you have confirmed its availability and authenticity. For new designs or non-critical applications, prioritize modern, supported components to avoid future compatibility or support issues.

Details:

Burr-Brown 32 A/D Converter Double-Sided FR-4 PCB Card 5V Edge Conn MPN.

part #: 315313779a price

• $249.99

specifications pcbemdev:

• brand: Burr-brown
• mpn: 31531-3779a
• part type: Converter Card
• mounting style: Edge Connector
• pcb type: Double-sided Pcb
• series: 32 A/d Converter
• number of tie-points: S10
• operating voltage: 5 V
• item height: 1.6 Mm
• material: Fr-4
• item length: 177.8 Mm
• item width: 106.68 Mm

seller pcbemdev:

• # reviews: 420
• city: Springfield, Ohio
• rating: 98.8%

offer pcbemdev:

• sold: 0
• quantity: 1
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• started: May 28, 2026
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• Electronic Components Semiconductors > Circuit Boards Prototyping > Printed Circuit Boards PCBs
• condition: Used

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• type: Calculated
• cost: $5.62
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