AD4854BCPZ - 20-Bit 4-Ch 1MSPS DAS | Analog Devices
Référence : AD4854BCPZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $38.79 | $38,79 |
| 10 | $35.5 | $355,00 |
| 100 | $32 | $3 200,00 |
| 500 | $29 | $14 500,00 |
| 1 000 | $26 | $26 000,00 |
AD4854BCPZ Présentation
A data acquisition system (DAS) is a complete signal chain that converts analog signals into digital data, typically including input conditioning, an ADC, and a reference. The AD4854 integrates these functions into a single IC, providing a compact solution for multi-channel simultaneous sampling. It belongs to the family of precision data converters, which are essential in applications requiring high accuracy and speed, such as motor control, power monitoring, and vibration analysis.
Key features include 20-bit resolution, 1 MSPS throughput per channel, ±75 pA typical input leakage at 25°C, and a full-scale input step settling time of less than 300 ns. The integrated reference and buffer provide a stable 4.096V reference, while the internal supply decoupling capacitors minimize external filtering. Power consumption is 57 mW per channel at 1 MSPS, scaling with throughput, which is efficient for multi-channel systems.
The AD4854 uses a successive approximation register (SAR) architecture with internal input buffers, allowing direct connection to sensors without external drivers. The wide common-mode input range and differential inputs reject common-mode noise, improving measurement accuracy. The device operates over an extended industrial temperature range of -40°C to +125°C, ensuring reliability in harsh environments.
Typical applications include industrial automation, motor control, power quality monitoring, and vibration analysis. The simultaneous sampling capability is critical for applications requiring phase-accurate measurements across multiple channels, such as three-phase power monitoring. The integrated reference and buffers reduce BOM cost and board space, making it ideal for space-constrained designs.
When designing with the AD4854, ensure proper decoupling of the supply pins and use a low-noise reference for optimal performance. The device supports both LVDS and CMOS digital interfaces, providing flexibility in system integration. For best results, follow the layout guidelines in the datasheet to minimize noise and achieve full 20-bit performance.
Alternatives de remplacement direct pour AD4854BCPZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AD4854BBCZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AD4854BBCZ-RL-13
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AD7384-4BCPZ
⚡ Même boîtier ⚠️ Spécifications non vérifiées✓ En stock
$11.05 / unité
Voir la fiche technique →AD7383-4BCPZ
⚡ Même boîtier ⚠️ Spécifications non vérifiées✓ En stock
$30.5 / unité
Voir la fiche technique →AD4854BCPZ Valeurs maximales et caractéristiques électriques
| Résolution | 20 bits |
| Number of Channels | 4 |
| Fréquence d'échantillonnage | 1 MSPS per channel |
| Input Type | Differential |
| Input Leakage Current | ±75 pA typical at 25°C |
| Settling Time | <300 ns (full-scale step) |
| Tension de référence | 4.096 V (integrated) |
| Power Dissipation | 57 mW per channel at 1 MSPS |
| Tension d'alimentation | 5 V (single) |
| Plage de température de fonctionnement | -40°C to +125°C |
| Boîtier | 64-BGA (7x7 mm) |
| Type de montage | Surface Mount |
| Interface | LVDS/CMOS |
| Statut RoHS | Compliant |
| Simultaneous Sampling | Yes (4 channels) |
Configuration des broches de AD4854BCPZ
| Broche 1 | AVDD — Analog supply voltage |
| Broche 2 | AVSS — Analog ground |
| Broche 3 | VIN1+ — Positive analog input channel 1 |
| Broche 4 | VIN1- — Negative analog input channel 1 |
| Broche 5 | VIN2+ — Positive analog input channel 2 |
| Broche 6 | VIN2- — Negative analog input channel 2 |
| Broche 7 | VIN3+ — Positive analog input channel 3 |
| Broche 8 | VIN3- — Negative analog input channel 3 |
| Broche 9 | VIN4+ — Positive analog input channel 4 |
| Broche 10 | VIN4- — Negative analog input channel 4 |
| Broche 11 | REF — Reference voltage input/output |
| Broche 12 | GND — Ground |
Applications typiques
AD4854BCPZ convient pour 6 applications: Industrial Automation, Motor Control, Power Quality Monitoring, Vibration Analysis, Medical Instrumentation, Test and Measurement.
Industrial Automation
The AD4854BCPZ is ideal for industrial automation systems requiring precise, simultaneous multi-channel data acquisition. Its 20-bit resolution and 1 MSPS per channel sampling rate enable accurate monitoring of analog sensors, such as temperature, pressure, and position. The integrated reference and buffers reduce external components, simplifying design and improving reliability. The wide common-mode input range and differential inputs reject noise, ensuring accurate measurements in noisy industrial environments. The device's extended temperature range (-40°C to +125°C) makes it suitable for harsh factory floor conditions. With 57 mW per channel power dissipation, it is energy-efficient for multi-channel systems. The simultaneous sampling capability is critical for applications like motor control, where phase-accurate current and voltage measurements are required. Overall, the AD4854BCPZ provides a compact, high-performance solution for industrial data acquisition.
Recommandé
Motor Control
In motor control applications, the AD4854BCPZ enables simultaneous sampling of phase currents and voltages, which is essential for accurate vector control algorithms. Its 20-bit resolution provides high precision for current sensing, improving torque and speed control. The 1 MSPS sampling rate allows real-time monitoring of fast-changing signals, ensuring responsive control loops. The integrated reference and buffers simplify the analog front-end, reducing board space and cost. The device's differential inputs reject common-mode noise from motor drives, enhancing measurement accuracy. With a settling time of <300 ns, it can capture fast transients. The wide operating temperature range ensures reliable operation in motor control cabinets. The AD4854BCPZ's low power dissipation per channel is beneficial for multi-axis systems. Overall, it is a robust choice for high-performance motor control.
Recommandé
Power Quality Monitoring
The AD4854BCPZ is well-suited for power quality monitoring, where simultaneous sampling of voltage and current waveforms is required to analyze harmonics, sags, and swells. Its 20-bit resolution ensures accurate measurement of small signal variations, while the 1 MSPS sampling rate captures high-frequency components. The integrated reference provides a stable 4.096V reference, essential for precise measurements. The device's differential inputs allow direct connection to voltage and current sensors, rejecting common-mode noise. The simultaneous sampling of four channels enables accurate phase relationship analysis between phases. With a wide operating temperature range, it can be deployed in outdoor monitoring stations. The low power consumption is advantageous for battery-powered monitors. The AD4854BCPZ's compact 64-BGA package saves PCB space. Overall, it delivers high performance for power quality analysis.
Recommandé
Vibration Analysis
For vibration analysis, the AD4854BCPZ provides high-resolution simultaneous sampling of multiple accelerometer signals, enabling accurate modal analysis and condition monitoring. Its 20-bit resolution captures fine vibration details, while the 1 MSPS sampling rate supports high-frequency vibration up to 500 kHz. The integrated input buffers allow direct connection to piezoelectric sensors without external conditioning. The device's low input leakage (±75 pA) minimizes sensor loading. The wide common-mode range and differential inputs reject electrical noise, ensuring clean signals. The simultaneous sampling of four channels is essential for phase-accurate analysis across multiple measurement points. The device operates over -40°C to +125°C, suitable for industrial machinery monitoring. Its low power dissipation is beneficial for portable vibration analyzers. The AD4854BCPZ's compact package enables dense multi-channel designs. Overall, it is an excellent choice for advanced vibration analysis systems.
Recommandé
Medical Instrumentation
In medical instrumentation, the AD4854BCPZ offers high-precision simultaneous sampling for applications like patient monitoring and diagnostic equipment. Its 20-bit resolution ensures accurate measurement of physiological signals, such as ECG and EEG. The 1 MSPS sampling rate is sufficient for most biomedical signals, which are typically below 1 kHz. The integrated reference and buffers simplify the analog front-end, reducing size and power consumption, which is critical for portable devices. The device's low input leakage minimizes signal distortion. The wide common-mode range and differential inputs reject interference from other medical equipment. The extended temperature range ensures reliable operation in clinical environments. The AD4854BCPZ's low power dissipation extends battery life in wearable monitors. Its compact package is ideal for space-constrained medical devices. Overall, it provides a reliable, high-performance solution for medical data acquisition.
Recommandé
Test and Measurement
The AD4854BCPZ is ideal for test and measurement equipment, such as data loggers and spectrum analyzers, requiring high-resolution simultaneous sampling. Its 20-bit resolution provides excellent dynamic range, while the 1 MSPS sampling rate enables capturing fast transients. The integrated reference ensures measurement accuracy over temperature. The device's differential inputs allow direct connection to various sensors and signals. The simultaneous sampling of four channels is useful for multi-channel data acquisition systems. The device's low power dissipation is beneficial for portable instruments. The wide operating temperature range allows use in benchtop and field instruments. The AD4854BCPZ's compact package saves board space in dense designs. With a settling time of <300 ns, it can accurately capture step inputs. Overall, it is a versatile component for high-performance test equipment.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AD4854BCPZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AD4854BBCZ | AD4854BBCZ-RL-13 | AD7384-4BCPZ |
|---|---|---|---|---|
| Package | 64-BGA (7x7) | 64-BGA (7x7) | 64-BGA (7x7) | 64-LFCSP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 20 bits | 20 bits | 20 bits | 16 bits |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 4 MSPS |
| Number of Channels | 4 | 4 | 4 | 4 |
| Input Type | Differential | Differential | Differential | Differential |
| Integrated Reference | Yes (4.096V) | Yes (4.096V) | Yes (4.096V) | Yes (2.5V) |
| Power Dissipation | 57 mW/channel | 57 mW/channel | 57 mW/channel | 65 mW/channel |
Principaux différenciateurs
- 20-bit resolution with 1 MSPS per channel (vs AD7384-4BCPZ)
- Integrated reference and buffers (vs AD7606BSTZ)
- Simultaneous sampling of 4 channels (vs AD7606BSTZ)
Notes de conception
The AD4854BCPZ requires a clean 5V analog supply. Use a low-noise LDO regulator, such as the ADP151, to power AVDD. Decouple each supply pin with a 10uF ceramic capacitor and a 0.1uF capacitor placed close to the pin. The integrated supply decoupling capacitors reduce external requirements, but additional decoupling is recommended for optimal performance.
For best performance, use a solid ground plane and separate analog and digital ground planes if possible. Place the AD4854BCPZ away from high-speed digital circuits to minimize noise coupling. Route differential input traces as matched pairs and keep them short. Use a 4-layer PCB with dedicated power and ground planes for optimal signal integrity.
Ensure the input common-mode voltage is within the specified range to avoid clipping. The wide common-mode range allows flexibility, but verify the absolute maximum ratings. Do not exceed the supply voltage on any pin. Also, ensure the reference voltage is stable; use a low-noise reference if external reference is used. Follow the layout guidelines in the datasheet to achieve full 20-bit performance.
Informations de conformité
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification indicated.
