AD4002BRUZ - 18-Bit SAR ADC, 2 MSPS | Analog Devices
부품 번호: AD4002BRUZ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
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.
드롭인 대체품: AD4002BRUZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: AD4002BRUZ (동일 폼 팩터 및 풋프린트) — 차이점: Package, Resolution, Supply Voltage, Input Type, Interface.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
AD4002BRUZ-RL7
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD4000BRUZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$8.1 / 개
데이터시트 보기 →AD4006BRUZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$23 / 개
데이터시트 보기 →AD4001BRUZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$6.6818 / 개
데이터시트 보기 →AD7091R-5BRUZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.1 / 개
데이터시트 보기 →AD4002BRUZ 최대 정격 & 전기적 특성
| 분해능 | 18-bit |
| 샘플링 속도 | 2 MSPS |
| Input Type | Single-ended |
| 인터페이스 | SPI |
| 공급 전압 | 1.8V to 5V |
| 기준 전압 | VREF (external) |
| 패키지 | 16-TSSOP (0.173", 4.40mm Width) |
| 동작 온도 | -40°C to +125°C |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Number of Channels | 1 |
AD4002BRUZ 핀 구성
| 핀 1 | VDD — Power supply |
| 핀 2 | GND — Ground |
| 핀 3 | VREF — Reference voltage input |
| 핀 4 | IN+ — Positive analog input |
| 핀 5 | IN- — Negative analog input |
| 핀 6 | SCK — Serial clock input |
| 핀 7 | SDI — Serial data input |
| 핀 8 | SDO — Serial data output |
| 핀 9 | CNV — Convert input |
| 핀 10 | BUSY — Busy output |
| 핀 11 | GND — Ground |
| 핀 12 | VDD — Power supply |
일반적인 애플리케이션
AD4002BRUZ 적합 용도: 6 애플리케이션s: 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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
추천 제품 요약
엔지니어링 참조 데이터: AD4002BRUZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- 18-bit resolution at 2 MSPS (vs AD4000BRUZ)
- Easy Drive technology (vs AD4006BRUZ)
- Input overvoltage clamp (vs AD4001BRUZ)
설계 노트
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.
규정 준수 정보
RoHS compliant per DigiKey listing. Other compliance data not provided.
