AD4632-24BCPZ - 24-Bit 500kSPS Dual SAR ADC | Analog Devices
部品番号: AD4632-24BCPZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 |
AD4632-24BCPZ 概要
A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high resolution, low power consumption, and fast conversion times, making it ideal for precision measurement applications. The AD4632-24 belongs to the family of precision SAR ADCs, which are essential in data acquisition systems where accuracy and speed are critical.
Key features of the AD4632-24BCPZ include a guaranteed maximum ±0.9 ppm INL with no missing codes at 24 bits, a typical dynamic range of 106 dB when using a 5 V reference, and a low noise floor that enables signal chains requiring less gain and lower power. The device operates over the industrial temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments.
The AD4632-24BCPZ integrates all critical power supply and reference bypass capacitors within the package, reducing the external component count and simplifying PCB layout. This integration also lessens sensitivity to board layout, making it easier to achieve optimal performance. The device supports both 2 and 4 input configurations, providing flexibility for various system architectures.
Typical applications include precision data acquisition systems, medical instrumentation, industrial process control, and scientific instrumentation. The high resolution and low noise make it suitable for applications requiring accurate measurement of small signals, such as weigh scales, pressure sensors, and temperature sensors.
When designing with the AD4632-24BCPZ, it is important to provide a clean, low-noise reference voltage and adequate decoupling on the power supply pins. The integrated bypass capacitors help, but external decoupling is still recommended for optimal performance. Additionally, the input signal should be properly buffered to avoid charge injection from the SAR architecture.
ドロップイン代替品: AD4632-24BCPZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AD4632-24BCPZ （同一形状・フットプリント） — 相違点: Sampling Rate, Input Type, Package, Architecture, Resolution.
クイック比較ツール — 並列比較する代替部品を選択:
AD4630-24BCPZ
✅ ドロップイン✓ 在庫あり
$28.75 / 個
データシートを見る →AD4632-24BBCZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD4630-24BBCZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD7621BCPZ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$14.08 / 個
データシートを見る →AD7610BCPZ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$27.8409 / 個
データシートを見る →AD4632-24BCPZ 最大定格＆電気的特性
| 分解能 | 24 bits |
| Number of Channels | 2, 4 input |
| サンプリングレート | 500 kSPS |
| Architecture | SAR |
| INL (max) | ±0.9 ppm |
| Dynamic Range | 106 dB (typ) with 5V reference |
| 動作温度範囲 | -40°C to +125°C |
| パッケージ | 64-CSPBGA (7x7 mm) |
| Input Type | Differential |
| Reference Type | External |
| RoHS ステータス | Compliant |
AD4632-24BCPZ ピン構成
| ピン A1 | VREF — Reference voltage input |
| ピン A2 | AVDD — Analog power supply |
| ピン A3 | AVSS — Analog ground |
| ピン B1 | IN+ — Positive analog input |
| ピン B2 | IN- — Negative analog input |
| ピン C1 | DVDD — Digital power supply |
| ピン C2 | DGND — Digital ground |
| ピン D1 | SCLK — Serial clock input |
| ピン D2 | SDI — Serial data input |
| ピン E1 | SDO — Serial data output |
| ピン E2 | CNV — Conversion start input |
| ピン F1 | BUSY — Busy output |
主な用途
AD4632-24BCPZ の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AD4632-24BCPZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Integrated bypass capacitors （vs AD7621BCPZ)
- Higher resolution （vs AD7621BCPZ)
- Wider temperature range （vs AD7621BCPZ)
設計ノート
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.
コンプライアンス情報
RoHS compliant per Analog Devices product page. Other compliance details not specified in the provided data.
