ADAQ4381-4BCPZ - Quad 14-Bit μModule DAQ | Analog Devices
料号： ADAQ4381-4BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $45.32 | $45.32 |
| 10 | $41.87 | $418.70 |
| 100 | $36.54 | $3,654.00 |
| 500 | $32.1 | $16,050.00 |
| 1,000 | $28.75 | $28,750.00 |
ADAQ4381-4BCPZ 概述
A data acquisition system (DAS) is a complete signal chain that samples analog signals, converts them to digital, and interfaces with a host processor. The ADAQ4381-4 is a μModule, a system-in-package that integrates the ADC, drivers, reference, and buffer, simplifying design and improving performance. It belongs to the hierarchy: μModule DAQ -> data acquisition system -> signal chain -> analog front end -> electronic system.
Key features include 14-bit resolution, 4 MSPS sampling rate per channel, quad-channel simultaneous sampling, and a high precision 3.3 V reference. The integrated reference buffer ensures low noise and high accuracy. The device operates from a single 5 V analog supply and a separate logic supply, enabling flexible interface levels. The CSPBGA package offers excellent thermal and electrical performance, with a compact footprint for space-constrained designs.
Technically, the ADAQ4381-4 uses a fully differential ADC architecture with integrated drivers, providing high input impedance and reduced external component requirements. The precision reference and buffer maintain low drift and high accuracy over temperature. The SPI interface allows easy configuration and data readout, with support for multiple devices on a single bus. The device includes power-down modes for low-power operation.
Typical applications include industrial process control, automated test equipment, medical instrumentation, and multi-channel data logging. The quad-channel architecture is ideal for systems requiring simultaneous sampling of multiple signals, such as three-phase power monitoring or vibration analysis. The integrated reference and drivers reduce BOM cost and board space.
When designing with this device, ensure proper decoupling of the analog and digital supplies, and use a clean ground plane to minimize noise. The SPI interface should be routed with controlled impedance to avoid signal integrity issues. The device requires an external clock or master clock input for conversion timing.
直接替换替代料： ADAQ4381-4BCPZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADAQ4381-4BCPZ （相同外形与封装尺寸） ——差异在于 Input Type, Number of Channels, Package, Resolution, Sampling Rate.
快速对比工具——选择替代料号进行并排对比：
ADAQ4381-4BBCZ
✅ 直接替换📋 参考替代料（不在目录中）
ADAQ4380-4BCPZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADAQ4370-4BCPZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7384-4BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$11.05 / 个
查看数据手册 →AD7383-4BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$30.5 / 个
查看数据手册 →ADAQ4381-4BCPZ 最大额定值与电气特性
| 分辨率 | 14 bit |
| Number of Channels | 4 |
| 采样率 | 4 MSPS |
| 接口 | Serial SPI |
| 封装 | 81-CSPBGA (8x8 mm) |
| 工作温度范围 | -40°C to +105°C |
| Logic Supply Voltage | 1.8 V, 2.5 V, 3.3 V |
| 基准电压 | 3.3 V (internal) |
| Input Type | Fully differential |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Number of Bits | 14 |
| Data Acquisition System Type | μModule |
ADAQ4381-4BCPZ 引脚配置
| 引脚 A1 | AVDD — Analog power supply |
| 引脚 A2 | AIN0+ — Positive analog input channel 0 |
| 引脚 A3 | AIN0- — Negative analog input channel 0 |
| 引脚 B1 | AVSS — Analog ground |
| 引脚 B2 | AIN1+ — Positive analog input channel 1 |
| 引脚 B3 | AIN1- — Negative analog input channel 1 |
| 引脚 C1 | DVDD — Digital power supply |
| 引脚 C2 | AIN2+ — Positive analog input channel 2 |
| 引脚 C3 | AIN2- — Negative analog input channel 2 |
| 引脚 D1 | DGND — Digital ground |
| 引脚 D2 | AIN3+ — Positive analog input channel 3 |
| 引脚 D3 | AIN3- — Negative analog input channel 3 |
| 引脚 E1 | SCLK — Serial clock input |
| 引脚 E2 | SDI — Serial data input |
| 引脚 E3 | SDO — Serial data output |
| 引脚 F1 | CS — Chip select |
| 引脚 F2 | REF — Reference voltage input/output |
| 引脚 F3 | VIO — Logic supply voltage |
典型应用
ADAQ4381-4BCPZ 适用于 6 应用s: Industrial Process Control, Automated Test Equipment, Medical Instrumentation, Multi-Channel Data Logging, Three-Phase Power Monitoring, Vibration Analysis.
Industrial Process Control
The ADAQ4381-4BCPZ provides four simultaneous 14-bit channels at 4 MSPS, ideal for monitoring multiple process variables like temperature, pressure, and flow. Its integrated reference and drivers reduce external component count, simplifying design in harsh industrial environments. The wide operating temperature range of -40°C to +105°C ensures reliable operation in factory floors. The SPI interface allows easy integration with industrial microcontrollers, enabling real-time control and data logging. Compared to discrete solutions, the μModule reduces board space and improves noise performance, critical for accurate process monitoring.
推荐
Automated Test Equipment
In ATE, the ADAQ4381-4BCPZ enables high-speed, multi-channel data acquisition for testing electronic devices. Its 4 MSPS sampling rate and 14-bit resolution capture fast transients with good accuracy. The integrated reference and buffer ensure stable measurements over temperature, reducing calibration drift. The compact CSPBGA package allows dense channel density on test boards. The SPI interface supports daisy-chaining multiple devices for scalable channel counts. The μModule approach reduces design time and BOM cost, making it ideal for production test systems where reliability and speed are paramount.
推荐
Medical Instrumentation
The ADAQ4381-4BCPZ is suitable for medical devices requiring multi-channel, high-resolution data acquisition, such as patient monitoring and diagnostic equipment. Its low noise and integrated reference ensure accurate signal capture, critical for biomedical signals. The quad-channel architecture allows simultaneous sampling of multiple physiological signals, like ECG and EEG. The wide temperature range and compact package enable portable designs. The SPI interface simplifies connection to medical-grade microcontrollers. The μModule reduces design risk and speeds time-to-market for regulated medical devices.
推荐
Multi-Channel Data Logging
The ADAQ4381-4BCPZ excels in data logging applications where multiple analog signals must be captured simultaneously. Its 4 MSPS sampling rate and 14-bit resolution provide high-fidelity recording of dynamic signals. The integrated reference and buffer maintain accuracy over long logging sessions. The SPI interface allows efficient data transfer to storage or processing units. The compact package enables portable loggers. The μModule simplifies design, reducing the risk of noise and layout issues. This makes it ideal for environmental monitoring, vibration analysis, and energy logging.
推荐
Three-Phase Power Monitoring
The ADAQ4381-4BCPZ is well-suited for three-phase power monitoring systems, where simultaneous sampling of voltage and current signals is essential. Its four channels can capture all three phases plus neutral, with 14-bit resolution and 4 MSPS speed to accurately measure harmonics and transients. The integrated reference ensures stable measurements over temperature. The SPI interface allows easy integration with power management processors. The μModule reduces component count and board space, enabling compact energy meters. The wide temperature range supports outdoor installation.
推荐
Vibration Analysis
The ADAQ4381-4BCPZ is ideal for vibration analysis in industrial machinery, where multiple accelerometer signals need simultaneous sampling. Its 4 MSPS rate captures high-frequency vibrations, and 14-bit resolution provides good dynamic range. The integrated reference and buffer ensure low noise, preserving signal fidelity. The quad-channel architecture allows monitoring multiple axes or sensors. The SPI interface enables fast data streaming to DSPs or FPGAs. The compact package suits embedded condition monitoring systems. The μModule simplifies design, reducing time-to-market for predictive maintenance solutions.
推荐
推荐产品汇总
工程参考数据： ADAQ4381-4BCPZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADAQ4381-4BBCZ | ADAQ4380-4BCPZ | ADAQ4370-4BCPZ | AD7384-4BCPZ |
|---|---|---|---|---|---|
| Package | 81-CSPBGA (8x8) | 81-CSPBGA (8x8) | 81-CSPBGA (8x8) | 81-CSPBGA (8x8) | 81-CSPBGA (8x8) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 14 bit | 14 bit | 16 bit | 14 bit | 16 bit |
| Sampling Rate | 4 MSPS | 4 MSPS | 4 MSPS | 2 MSPS | 4 MSPS |
| Integrated Reference | Yes | Yes | Yes | Yes | No |
| Integrated Drivers | Yes | Yes | Yes | Yes | No |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C |
| Logic Supply Voltage | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V |
关键差异点
- Integrated μModule reduces component count （对比 AD7384-4BCPZ)
- Higher sampling rate than ADAQ4370-4 （对比 ADAQ4370-4BCPZ)
- 14-bit resolution with integrated reference （对比 AD7384-4BCPZ)
设计说明
Ensure clean and stable power supplies for AVDD and DVDD. Use low-dropout regulators (LDOs) with low noise and high PSRR to minimize supply-induced noise. Decouple each supply pin with 0.1 µF and 10 µF capacitors placed close to the pins. The separate logic supply (VIO) should be decoupled with 0.1 µF capacitor. Proper power sequencing is recommended to avoid latch-up.
Use a solid ground plane and separate analog and digital ground planes, connecting them at a single point near the device. Route analog inputs away from digital traces to minimize coupling. Place the reference decoupling capacitor close to the REF pin. For the CSPBGA package, ensure adequate thermal vias under the exposed pad for heat dissipation. Follow the layout guidelines in the datasheet for optimal performance.
The SPI interface should be routed with controlled impedance and matched trace lengths to avoid signal integrity issues at high clock rates. Use series termination resistors (e.g., 33 Ω) near the driver to reduce reflections. Keep the SPI bus short and avoid crossing analog signals. For multi-device configurations, ensure proper CS decoding and minimize bus capacitance.
合规信息
RoHS compliance inferred from distributor listings. Other compliance data not explicitly provided in verified data.
