AD4632-24BCPZ - 24-Bit 500kSPS Dual SAR ADC | Analog Devices
MPN: AD4632-24BCPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.9 | $42.90 |
| 10 | $39.5 | $395.00 |
| 100 | $35.2 | $3,520.00 |
| 500 | $31.8 | $15,900.00 |
| 1,000 | $28.5 | $28,500.00 |
Drop-in alternatives for AD4632-24BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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AD4630-24BCPZ
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View Datasheet →AD4632-24BBCZ
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AD4630-24BBCZ
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AD7621BCPZ
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View Datasheet →AD7610BCPZ
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View Datasheet →AD4632-24BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 bits |
| Number of Channels | 2, 4 input |
| Sampling Rate | 500 kSPS |
| Architecture | SAR |
| INL (max) | ±0.9 ppm |
| Dynamic Range | 106 dB (typ) with 5V reference |
| Operating Temperature Range | -40°C to +125°C |
| Package | 64-CSPBGA (7x7 mm) |
| Input Type | Differential |
| Reference Type | External |
| Supply Voltage | [DATA_NEEDED: supply voltage] |
| Power Dissipation | [DATA_NEEDED: power dissipation] |
| SNR | [DATA_NEEDED: SNR] |
| Interface | [DATA_NEEDED: interface type] |
| RoHS Status | Compliant |
AD4632-24BCPZ Pin Configuration
| Pin A1 | VREF — Reference voltage input |
| Pin A2 | AVDD — Analog power supply |
| Pin A3 | AVSS — Analog ground |
| Pin B1 | IN+ — Positive analog input |
| Pin B2 | IN- — Negative analog input |
| Pin C1 | DVDD — Digital power supply |
| Pin C2 | DGND — Digital ground |
| Pin D1 | SCLK — Serial clock input |
| Pin D2 | SDI — Serial data input |
| Pin E1 | SDO — Serial data output |
| Pin E2 | CNV — Conversion start input |
| Pin F1 | BUSY — Busy output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD4632-24BCPZ is suitable for 6 applications: Precision Data Acquisition Systems, Medical Instrumentation, Industrial Process Control, Scientific Instrumentation, Audio Test and Measurement, Vibration and Condition Monitoring.
Precision Data Acquisition Systems
The AD4632-24BCPZ is ideal for precision data acquisition systems that require high resolution and accuracy. Its 24-bit resolution and ±0.9 ppm INL ensure accurate measurement of analog signals. The Easy Drive™ architecture simplifies the front-end design, reducing the need for external drivers. With a 500 kSPS sampling rate, it can capture fast-changing signals while maintaining precision. The integrated bypass capacitors reduce board space and layout sensitivity, making it easier to achieve optimal performance in compact systems.
Recommended
Medical Instrumentation
In medical instrumentation, the AD4632-24BCPZ provides the high resolution and low noise required for accurate physiological signal measurement. Its 24-bit resolution and 106 dB dynamic range enable detection of small signals such as ECG, EEG, and blood pressure. The wide operating temperature range of -40°C to +125°C ensures reliability in clinical environments. The integrated bypass capacitors help maintain signal integrity, which is critical for patient safety and diagnostic accuracy.
Recommended
Industrial Process Control
The AD4632-24BCPZ is well-suited for industrial process control applications where precise monitoring of sensors is essential. Its high resolution and low noise allow accurate measurement of temperature, pressure, and flow. The device's robustness over -40°C to +125°C makes it suitable for harsh industrial environments. The Easy Drive™ architecture reduces the need for external components, simplifying system design and improving reliability. The 500 kSPS sampling rate is sufficient for most process control loops.
Recommended
Scientific Instrumentation
For scientific instrumentation, the AD4632-24BCPZ offers the precision and speed needed for experiments and measurements. Its 24-bit resolution and ±0.9 ppm INL ensure accurate data collection. The low noise floor enables detection of weak signals, which is crucial in fields like spectroscopy and particle physics. The compact CSP_BGA package allows for high-density designs, and the integrated bypass capacitors reduce external component count, making it easier to build compact, high-performance instruments.
Recommended
Audio Test and Measurement
The AD4632-24BCPZ can be used in audio test and measurement equipment to analyze audio signals with high precision. Its 24-bit resolution and 106 dB dynamic range allow accurate measurement of audio distortion and noise. The low noise floor ensures that the ADC does not introduce significant noise into the measurement path. The 500 kSPS sampling rate is sufficient for audio frequencies up to 250 kHz, covering most audio testing needs. The integrated bypass capacitors help maintain signal integrity in sensitive audio circuits.
Recommended
Vibration and Condition Monitoring
In vibration and condition monitoring, the AD4632-24BCPZ provides the high resolution and dynamic range needed to capture small vibrations and detect early signs of equipment failure. Its 24-bit resolution and 106 dB dynamic range allow accurate measurement of vibration amplitudes. The device's wide temperature range makes it suitable for industrial environments. The Easy Drive™ architecture simplifies the interface to accelerometers and other sensors, reducing design complexity. The 500 kSPS sampling rate is adequate for most vibration monitoring applications.
Recommended
Recommended Products Summary
Engineering reference data for AD4632-24BCPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4630-24BCPZ | AD4632-24BBCZ | AD7621BCPZ |
|---|---|---|---|---|
| Package | 64-CSPBGA (7x7) | 64-CSPBGA (7x7) | 64-CSPBGA (7x7) | 64-CSPBGA (7x7) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 24 bits | 24 bits | 24 bits | 16 bits |
| Sampling Rate | 500 kSPS | 2 MSPS | 500 kSPS | 3 MSPS |
| INL (max) | ±0.9 ppm | ±0.9 ppm | ±0.9 ppm | ±2 LSB |
| Dynamic Range | 106 dB | 106 dB | 106 dB | 89 dB |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C |
| Integrated Bypass Caps | Yes | Yes | Yes | No |
Key Differentiators
- Integrated bypass capacitors (vs AD7621BCPZ)
- Higher resolution (vs AD7621BCPZ)
- Wider temperature range (vs AD7621BCPZ)
Design Notes
Provide clean, low-noise power supplies to AVDD and DVDD. Use low-dropout regulators (LDOs) with output noise below 10 µVrms to avoid degrading the ADC's performance. Decouple each supply pin with 0.1 µF and 10 µF capacitors placed close to the pins. The integrated bypass capacitors help, but external decoupling is still recommended for optimal performance.
For optimal performance, use a solid ground plane and separate analog and digital ground planes if possible. Place the ADC close to the signal source to minimize trace length and reduce noise pickup. Route sensitive analog traces away from digital traces and avoid crossing them. The CSP_BGA package requires careful PCB layout to ensure proper solder joint reliability; follow the manufacturer's recommended land pattern.
Ensure the reference voltage is stable and low-noise, as it directly affects the ADC's accuracy. Use a precision reference like the ADR4550 or ADR445. Avoid driving the analog inputs with high-impedance sources without buffering, as the SAR architecture can cause charge injection. Use an op-amp buffer with low output impedance to drive the inputs.
Compliance Information
RoHS compliant per Analog Devices product page. Other compliance details not specified in the provided data.
