AD4632-24BCPZ - 24-Bit 500kSPS Dual SAR ADC | Analog Devices
N.º de pieza: AD4632-24BCPZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 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 Descripción general
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.
Alternativas directas para AD4632-24BCPZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con AD4632-24BCPZ (mismo factor de forma y huella) — difiere en Sampling Rate, Input Type, Package, Architecture, Resolution.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
AD4630-24BCPZ
✅ Sustitución directa✓ En stock
$28.75 / unidad
Ver hoja de datos →AD4632-24BBCZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AD4630-24BBCZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
AD7621BCPZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$14.08 / unidad
Ver hoja de datos →AD7610BCPZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$27.8409 / unidad
Ver hoja de datos →AD4632-24BCPZ Valores máximos y características eléctricas
| Resolución | 24 bits |
| Number of Channels | 2, 4 input |
| Frecuencia de muestreo | 500 kSPS |
| Architecture | SAR |
| INL (max) | ±0.9 ppm |
| Dynamic Range | 106 dB (typ) with 5V reference |
| Rango de temperatura de funcionamiento | -40°C to +125°C |
| Encapsulado | 64-CSPBGA (7x7 mm) |
| Input Type | Differential |
| Reference Type | External |
| Estado RoHS | Compliant |
Configuración de pines de AD4632-24BCPZ
| 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 |
Aplicaciones típicas
AD4632-24BCPZ es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AD4632-24BCPZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Integrated bypass capacitors (frente a AD7621BCPZ)
- Higher resolution (frente a AD7621BCPZ)
- Wider temperature range (frente a AD7621BCPZ)
Notas de diseño
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.
Información de cumplimiento
RoHS compliant per Analog Devices product page. Other compliance details not specified in the provided data.
