AD4003BRUZ - 18-Bit 2MSPS SAR ADC | Analog Devices
MPN： AD4003BRUZ ✓ 啟用中AD4003BRUZ 概覽
What is a SAR ADC? A successive approximation register (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 speed, low power consumption, and high accuracy, making it ideal for applications such as industrial process control, medical instrumentation, and test and measurement equipment. SAR ADCs are part of the broader category of data converters, which also includes delta-sigma and pipeline ADCs, and are essential components in mixed-signal systems.
Key features of the AD4003BRUZ include its 18-bit resolution, 2 MSPS throughput, and Easy Drive technology, which simplifies the driving of the analog inputs by reducing the input current and settling time requirements. The device also offers a wide input voltage range, low power dissipation, and a serial interface that is compatible with SPI. These features make it suitable for high-performance applications where accuracy and speed are critical.
Technically, the AD4003BRUZ uses a precision SAR architecture with an internal reference buffer and a high-speed serial interface. It supports both single-ended and differential input configurations, and includes a flexible power-down mode to reduce power consumption during idle periods. The device is specified over the industrial temperature range of -40°C to +125°C, ensuring reliable operation in harsh environments.
Typical applications for the AD4003BRUZ include industrial automation, medical imaging, vibration analysis, and high-speed data acquisition systems. Its high resolution and speed make it ideal for capturing fast-changing signals with high fidelity, while its low power consumption is beneficial for battery-powered and portable instruments.
When designing with the AD4003BRUZ, it is important to provide a clean, low-noise power supply and a stable reference voltage to achieve the specified performance. Proper PCB layout, including adequate decoupling and grounding, is essential to minimize noise and ensure accurate conversions.
直接替換替代品，適用於 AD4003BRUZ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： AD4003BRUZ （相同外形與佔位） — 差異在於 Resolution, Package, Interface, Power Dissipation, Input Type.
AD4003BRMZ
✅ 直接替換📋 參考替代品（不在目錄中）
AD4000BRUZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AD4001BRUZ
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$6.6818 / 單位
查看資料表 →AD7980BRMZ
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$16.8636 / 單位
查看資料表 →AD7690BRMZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AD4003BRUZ 最大額定值與電氣特性
| 解析度 | 18 Bit |
| Number of Channels | 1 |
| Input Type | Differential |
| 取樣率 | 2 MSPS |
| Architecture | SAR |
| 介面 | SPI |
| 供應電壓 | 1.8 V to 5.5 V |
| 參考電壓 | 2.5 V to 5 V |
| Power Dissipation | 15 mW at 2 MSPS |
| 工作溫度 | -40°C to +125°C |
| 封裝 | 10-MSOP |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Easy Drive Technology | Yes |
| SNR | 100 dB |
AD4003BRUZ 腳位配置
| 腳位 1 | VDD — Power supply |
| 腳位 2 | GND — Ground |
| 腳位 3 | IN+ — Positive differential input |
| 腳位 4 | IN- — Negative differential input |
| 腳位 5 | REF — Reference voltage input |
| 腳位 6 | GND — Ground |
| 腳位 7 | SCK — Serial clock input |
| 腳位 8 | SDI — Serial data input |
| 腳位 9 | SDO — Serial data output |
| 腳位 10 | CNV — Convert input |
典型應用
AD4003BRUZ 適用於 6 應用s: Industrial Process Control, Medical Instrumentation, Vibration Analysis, High-Speed Data Acquisition, Battery-Powered Instruments, Test and Measurement.
Industrial Process Control
The AD4003BRUZ's 18-bit resolution and 2 MSPS sampling rate enable precise monitoring and control of industrial processes. Its differential input rejects common-mode noise, ensuring accurate measurements in noisy factory environments. The low power consumption and wide temperature range make it suitable for remote sensors and control modules. With Easy Drive technology, it simplifies the interface to sensors and transducers, reducing design complexity and improving system reliability.
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Medical Instrumentation
In medical devices such as patient monitors and diagnostic equipment, the AD4003BRUZ provides high-resolution conversion of biosignals with low noise and low power. Its 100 dB SNR ensures accurate representation of small physiological signals, while the small MSOP package saves board space in portable devices. The SPI interface allows easy integration with microcontrollers, and the wide supply voltage range accommodates battery-powered operation. The device's reliability over the industrial temperature range is critical for medical applications.
推薦
Vibration Analysis
The AD4003BRUZ is ideal for vibration analysis in predictive maintenance and structural health monitoring. Its 2 MSPS sampling rate captures high-frequency vibration signals, while the 18-bit resolution provides fine amplitude resolution for detecting subtle changes. The differential input reduces interference from electromagnetic sources, and the low power consumption enables deployment in wireless sensor nodes. Easy Drive technology reduces input settling time, allowing accurate sampling of fast transients.
推薦
High-Speed Data Acquisition
For high-speed data acquisition systems, the AD4003BRUZ offers a balance of speed and resolution. Its 2 MSPS throughput allows digitization of fast signals, and the 18-bit resolution ensures high fidelity. The SPI interface supports high-speed data transfer, and the low power dissipation is beneficial in multi-channel systems. The device's Easy Drive feature simplifies the analog front-end, reducing component count and design time. It is suitable for applications like radar, lidar, and high-speed test equipment.
推薦
Battery-Powered Instruments
The AD4003BRUZ's low power consumption makes it ideal for battery-powered instruments such as portable multimeters and data loggers. It operates from a single 1.8 V to 5.5 V supply, allowing direct battery connection. The device includes a power-down mode to extend battery life during idle periods. Its small MSOP package and SPI interface reduce board space and simplify design. The high resolution and accuracy ensure reliable measurements in field applications.
推薦
Test and Measurement
In test and measurement equipment, the AD4003BRUZ provides the accuracy and speed needed for benchtop instruments and automated test systems. Its 18-bit resolution and 2 MSPS sampling rate enable precise characterization of electronic components and signals. The differential input and high SNR ensure accurate measurements even in the presence of noise. The device's SPI interface allows easy integration with FPGAs and microcontrollers, and its low power consumption reduces thermal effects in sensitive measurements.
推薦
推薦產品摘要
工程參考資料，適用於 AD4003BRUZ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AD4003BRMZ | AD4000BRUZ | AD4001BRUZ | AD7980BRMZ | AD7690BRMZ |
|---|---|---|---|---|---|---|
| Package | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 18-bit | 18-bit | 16-bit | 18-bit | 16-bit | 18-bit |
| Sampling Rate | 2 MSPS | 2 MSPS | 2 MSPS | 1 MSPS | 1 MSPS | 400 kSPS |
| Input Type | Differential | Differential | Differential | Differential | Differential | Differential |
| Interface | SPI | SPI | SPI | SPI | SPI | SPI |
| Supply Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V |
| Power Dissipation | 15 mW | 15 mW | 15 mW | 10 mW | 7 mW | 4 mW |
主要差異化特點
- 18-bit resolution at 2 MSPS (對比AD7980BRMZ)
- Easy Drive technology (對比AD7690BRMZ)
- Wide supply voltage range (對比AD7980BRMZ)
設計說明
Provide a clean, low-noise power supply for the AD4003BRUZ. Use a low-dropout regulator (LDO) to generate VDD, and place 0.1uF and 10uF decoupling capacitors close to the VDD pin. The reference voltage should be buffered with a precision reference like the AD780 to ensure stable conversions.
For optimal performance, use a solid ground plane and separate analog and digital ground areas. Route the differential input traces symmetrically and keep them away from digital signals. Place the ADC close to the signal source to minimize trace length and reduce noise pickup.
Avoid driving the analog inputs with high-impedance sources without buffering. The Easy Drive technology reduces input current, but a low-impedance source is still recommended. Also, ensure the reference voltage is stable and noise-free, as it directly affects the ADC's accuracy.
合規資訊
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification for this part.
