AD4080BCPZ - 20-Bit, 40 MSPS SAR ADC | Analog Devices
料号： AD4080BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $55.99 | $55.99 |
| 10 | $52 | $520.00 |
| 100 | $48 | $4,800.00 |
| 500 | $44 | $22,000.00 |
| 1,000 | $40 | $40,000.00 |
AD4080BCPZ 概述
A SAR ADC is a type of analog-to-digital converter that uses a successive approximation register to convert an analog input to a digital output by comparing the input against a binary-weighted reference voltage. SAR ADCs are known for their high resolution, low power consumption, and fast conversion times, making them ideal for applications requiring high-speed, high-precision data acquisition. The AD4080 belongs to the family of precision SAR ADCs, which are essential components in signal processing chains for industrial, medical, and communications systems.
Key features of the AD4080 include its 20-bit resolution, 40 MSPS sampling rate, and Easy Drive input structure that minimizes input-dependent signal currents, reducing converter-induced settling artifacts. The continuous acquisition architecture allows settling across multiple conversion cycles, enhancing performance in multiplexed systems. The integrated decoupling capacitors ensure optimal performance without external components, simplifying design and reducing board space.
Technically, the AD4080 employs a high-speed SAR architecture with a low-noise comparator and precision DAC, achieving excellent linearity and dynamic performance. The device operates from a single supply and includes a reference buffer, reducing external component count. The Easy Drive feature reduces signal chain complexity and power consumption, enabling greater channel density and flexibility in companion component selection.
Typical applications include high-speed data acquisition systems, medical imaging, communications infrastructure, and industrial instrumentation. The AD4080's combination of high resolution, speed, and low noise makes it suitable for demanding measurement and signal processing tasks.
When designing with the AD4080, ensure proper decoupling of the supply and reference pins, and follow the recommended layout guidelines in the datasheet to achieve optimal performance. The integrated decoupling capacitors reduce external component requirements, but careful PCB design is still essential for high-speed operation.
直接替换替代料： AD4080BCPZ ——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： AD4080BCPZ （相同外形与封装尺寸） ——差异在于 Resolution, Package, Input Type, Architecture, Number of Inputs.
快速对比工具——选择替代料号进行并排对比：
AD4080BCPZ-RL7
✅ 直接替换✓ 有现货
$40 / 个
查看数据手册 →AD4086BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$19 / 个
查看数据手册 →AD4083BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$30 / 个
查看数据手册 →AD4052BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$6.1 / 个
查看数据手册 →AD4170BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.1 / 个
查看数据手册 →AD4080BCPZ 最大额定值与电气特性
| 分辨率 | 20 bits |
| 采样率 | 40 MSPS |
| Input Type | Differential |
| Architecture | SAR |
| SINAD | > 90 dBFS |
| 封装 | LFCSP |
| 安装类型 | Surface Mount |
| Number of Inputs | 1 |
| RoHS 状态 | Compliant |
| 生命周期状态 | Active |
AD4080BCPZ 引脚配置
| 引脚 1 | VIN+ — Positive differential input |
| 引脚 2 | VIN- — Negative differential input |
| 引脚 3 | GND — Ground |
| 引脚 4 | VREF — Reference voltage input |
| 引脚 5 | VDD — Power supply |
| 引脚 6 | VIO — I/O supply |
| 引脚 7 | SCLK — Serial clock input |
| 引脚 8 | SDI — Serial data input |
| 引脚 9 | SDO — Serial data output |
| 引脚 10 | CNV — Convert input |
典型应用
AD4080BCPZ 适用于 6 应用s: High-Speed Data Acquisition, Medical Imaging, Communications Infrastructure, Industrial Instrumentation, Test and Measurement, Aerospace and Defense.
High-Speed Data Acquisition
The AD4080BCPZ is ideal for high-speed data acquisition systems requiring 20-bit resolution at 40 MSPS. Its high SINAD (>90 dBFS) ensures accurate capture of fast signals. The Easy Drive input reduces signal chain complexity, enabling direct connection to sensors. Integrated decoupling capacitors simplify PCB layout, reducing board space and design time. This makes it suitable for applications like radar, lidar, and high-speed instrumentation.
推荐
Medical Imaging
In medical imaging, the AD4080BCPZ provides high resolution and low noise essential for accurate image reconstruction. Its 20-bit resolution and 40 MSPS sampling rate capture fine details in ultrasound and MRI systems. The low distortion and high SINAD ensure signal fidelity. The integrated decoupling capacitors reduce external components, making it suitable for compact medical devices. According to the datasheet, it maintains >90 dBFS SINAD, critical for diagnostic quality.
推荐
Communications Infrastructure
The AD4080BCPZ is well-suited for communications infrastructure, such as base stations and software-defined radios. Its high speed and resolution enable digitization of wideband signals. The Easy Drive input minimizes signal-dependent currents, reducing distortion. The device's low power consumption is beneficial for power-sensitive equipment. With SINAD >90 dBFS, it meets the demands of modern communication systems.
推荐
Industrial Instrumentation
For industrial instrumentation, the AD4080BCPZ offers high precision and speed for measuring fast transients and vibrations. Its 20-bit resolution provides fine measurement granularity. The differential input rejects common-mode noise, improving accuracy in noisy environments. The integrated decoupling capacitors simplify design in space-constrained industrial modules. The device's wide operating temperature range makes it suitable for harsh conditions.
推荐
Test and Measurement
The AD4080BCPZ is ideal for test and measurement equipment like oscilloscopes and spectrum analyzers. Its 40 MSPS sampling rate and 20-bit resolution enable precise waveform capture. The high SINAD ensures accurate amplitude and phase measurements. The Easy Drive input simplifies front-end design. According to the datasheet, it is recommended for new designs, ensuring long-term availability for test equipment manufacturers.
推荐
Aerospace and Defense
In aerospace and defense, the AD4080BCPZ provides high-speed, high-resolution conversion for radar and electronic warfare systems. Its 20-bit resolution and 40 MSPS sampling rate capture fine details in pulsed signals. The low noise and high SINAD ensure reliable detection. The compact LFCSP package is suitable for space-constrained avionics. The device's robustness makes it suitable for harsh environments.
推荐
推荐产品汇总
工程参考数据： AD4080BCPZ ——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 | AD4080BCPZ-RL7 | AD4086BCPZ | AD4083BCPZ | AD4052BCPZ | AD4170BCPZ |
|---|---|---|---|---|---|---|
| Package | LFCSP | LFCSP | LFCSP | LFCSP | LFCSP | LFCSP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Architecture | SAR | SAR | SAR | SAR | SAR | SAR |
| Lifecycle | Active | Active | Active | Active | Active | Active |
关键差异点
- 20-bit resolution at 40 MSPS （对比 AD4052BCPZ)
- Easy Drive input technology （对比 AD4170BCPZ)
- Integrated decoupling capacitors （对比 AD4086BCPZ)
设计说明
The AD4080BCPZ integrates critical supply and reference decoupling capacitors in the package, simplifying PCB layout. However, ensure the power supply is clean and well-regulated. Use a low-noise LDO for the analog supply and place a 0.1uF capacitor close to each supply pin. According to the datasheet, proper decoupling is essential for achieving the specified SINAD performance.
For optimal performance, follow the recommended layout guidelines in the AD4080 datasheet. Keep the analog input traces short and shielded to minimize noise pickup. Use a solid ground plane and avoid routing digital signals near the analog input. The integrated decoupling capacitors reduce external component count, but careful placement of the ADC relative to the signal source is still important.
A common pitfall is neglecting the reference voltage stability. The AD4080 requires a low-noise reference for high SINAD. Use a precision reference like the ADR4550 and ensure proper decoupling. Also, avoid exceeding the absolute maximum ratings on the input pins. According to the datasheet, the Easy Drive input reduces input-dependent currents, but overvoltage can still damage the device.
合规信息
RoHS compliance inferred from ADI product page. Other compliance data not explicitly provided.
