AD4002BRUZ - 18-Bit SAR ADC, 2 MSPS | Analog Devices
Артикул: AD4002BRUZ ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.25 | $112,50 |
| 100 | $10 | $1.000,00 |
| 500 | $9 | $4.500,00 |
| 1.000 | $8.5 | $8.500,00 |
AD4002BRUZ Обзор
A SAR ADC is a type of analog-to-digital converter that uses a successive approximation register to convert an analog input signal into a digital output. It works by comparing the input voltage against a series of binary-weighted reference voltages, refining the approximation with each clock cycle. SAR ADCs are known for their high speed, low power consumption, and ease of use, making them ideal for applications such as data acquisition, industrial process control, and medical instrumentation.
Key features of the AD4002BRUZ include 18-bit resolution, a maximum sampling rate of 2 MSPS, and an Easy Drive architecture that simplifies the analog front-end design by reducing input drive requirements. The device also features input span compression, which eliminates the need for a negative supply to the ADC driver amplifier while preserving access to the full ADC code range. An input overvoltage clamp protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
Technically, the AD4002BRUZ uses a precision SAR architecture with an internal reference buffer, ensuring high linearity and low noise. The device supports a wide input voltage range and operates from a single 1.8V to 5V supply, making it versatile for various system power rails. The Easy Drive feature reduces the settling time requirements of the driving amplifier, allowing for lower power and simpler front-end designs.
Typical applications include high-speed data acquisition systems, industrial automation, medical imaging, and precision instrumentation. The AD4002BRUZ is also suitable for battery-powered devices due to its low power consumption. When designing with this ADC, ensure proper decoupling of the VDD and VREF pins and consider the input overvoltage clamp for robust operation in harsh environments.
Аналоги без доработки для AD4002BRUZ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с AD4002BRUZ (тот же форм-фактор и посадочное место) — отличается по Package, Resolution, Supply Voltage, Input Type, Interface.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
AD4002BRUZ-RL7
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
AD4000BRUZ
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$8.1 / шт.
Открыть даташит →AD4006BRUZ
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$23 / шт.
Открыть даташит →AD4001BRUZ
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$6.6818 / шт.
Открыть даташит →AD7091R-5BRUZ
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$3.1 / шт.
Открыть даташит →AD4002BRUZ Максимальные параметры и электрические характеристики
| Разрешение | 18-bit |
| Частота дискретизации | 2 MSPS |
| Input Type | Single-ended |
| Интерфейс | SPI |
| Напряжение питания | 1.8V to 5V |
| Опорное напряжение | VREF (external) |
| Корпус | 16-TSSOP (0.173", 4.40mm Width) |
| Рабочая температура | -40°C to +125°C |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
| Number of Channels | 1 |
Конфигурация выводов AD4002BRUZ
| Контакт 1 | VDD — Power supply |
| Контакт 2 | GND — Ground |
| Контакт 3 | VREF — Reference voltage input |
| Контакт 4 | IN+ — Positive analog input |
| Контакт 5 | IN- — Negative analog input |
| Контакт 6 | SCK — Serial clock input |
| Контакт 7 | SDI — Serial data input |
| Контакт 8 | SDO — Serial data output |
| Контакт 9 | CNV — Convert input |
| Контакт 10 | BUSY — Busy output |
| Контакт 11 | GND — Ground |
| Контакт 12 | VDD — Power supply |
Типичное применение
AD4002BRUZ подходит для 6 применениеs: High-Speed Data Acquisition, Industrial Automation, Medical Instrumentation, Precision Instrumentation, Battery-Powered Devices, Communication Systems.
High-Speed Data Acquisition
The AD4002BRUZ's 18-bit resolution and 2 MSPS sampling rate make it ideal for high-speed data acquisition systems. Its Easy Drive feature reduces input drive requirements, simplifying the analog front-end. The input overvoltage clamp protects against transients, ensuring reliable operation in industrial environments. With a wide supply range and low power, it suits portable and battery-powered data loggers.
Рекомендуется
Industrial Automation
In industrial automation, the AD4002BRUZ provides precise analog-to-digital conversion for process control and monitoring. Its wide operating temperature range (-40°C to +125°C) ensures reliability in harsh environments. The SPI interface simplifies integration with industrial microcontrollers. The input overvoltage clamp eliminates the need for external protection diodes, reducing BOM cost and board space.
Рекомендуется
Medical Instrumentation
The AD4002BRUZ is suitable for medical instrumentation such as patient monitoring and diagnostic equipment. Its high accuracy and low noise ensure precise measurements. The small 16-TSSOP package fits compact medical devices. The Easy Drive feature reduces the complexity of the driving amplifier, which is beneficial in battery-powered portable medical devices. The wide supply range allows operation from common battery voltages.
Рекомендуется
Precision Instrumentation
For precision instrumentation like digital multimeters and spectrum analyzers, the AD4002BRUZ offers 18-bit resolution and high linearity. Its SPI interface allows easy connection to DSPs and FPGAs. The input span compression feature eliminates the need for a negative supply, simplifying the design. The overvoltage clamp protects sensitive inputs, enhancing robustness in test and measurement equipment.
Рекомендуется
Battery-Powered Devices
The AD4002BRUZ's low power consumption and wide supply range (1.8V to 5V) make it ideal for battery-powered devices. Its small package and Easy Drive feature reduce overall system power and size. The input overvoltage clamp provides protection without external components, saving board space. This makes it suitable for portable medical devices, handheld instruments, and wireless sensors.
Рекомендуется
Communication Systems
In communication systems, the AD4002BRUZ can be used for baseband signal processing and digital predistortion. Its high sampling rate and resolution enable accurate signal capture. The SPI interface supports high-speed data transfer. The Easy Drive feature simplifies the interface to RF front-ends. The wide supply range allows integration with various logic levels.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для AD4002BRUZ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | AD4000BRUZ | AD4006BRUZ | AD4001BRUZ |
|---|---|---|---|---|
| Resolution | 18-bit | 16-bit | 18-bit | 16-bit |
| Sampling Rate | 2 MSPS | 1 MSPS | 500 kSPS | 2 MSPS |
| Supply Voltage | 1.8V to 5V | 1.8V to 5V | 1.8V to 5V | 1.8V to 5V |
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Interface | SPI | SPI | SPI | SPI |
| Input Type | Single-ended | Single-ended | Single-ended | Single-ended |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Ключевые отличия
- 18-bit resolution at 2 MSPS (против AD4000BRUZ)
- Easy Drive technology (против AD4006BRUZ)
- Input overvoltage clamp (против AD4001BRUZ)
Заметки по проектированию
Decouple the VDD pin with a 10uF ceramic capacitor and a 0.1uF capacitor placed as close to the pin as possible. The VREF pin should also be decoupled with a 10uF capacitor to ensure a stable reference voltage. Proper decoupling minimizes noise and ensures accurate conversions.
Use a solid ground plane under the ADC to minimize noise. Keep analog and digital grounds separate and connect them at a single point. Route the SPI lines away from analog input traces to avoid crosstalk. Follow the layout guidelines in the AD4002 datasheet for optimal performance.
Ensure the input signal is within the specified common-mode range. The input overvoltage clamp protects against overvoltage, but do not rely on it for continuous operation. Also, avoid driving the input with a high-impedance source without a buffer, as this can cause settling errors. Use a low-impedance driver or an op-amp buffer.
Информация о соответствии
RoHS compliant per DigiKey listing. Other compliance data not provided.
