AD4683BCPZ - 16-Bit 500kSPS Dual SAR ADC | Analog Devices
料号： AD4683BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $10.64 | $10.64 |
| 10 | $9.58 | $95.80 |
| 100 | $8.51 | $851.00 |
| 500 | $7.45 | $3,725.00 |
| 1,000 | $6.38 | $6,380.00 |
AD4683BCPZ 概述
A 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 excellent accuracy, making it ideal for applications such as data acquisition systems, industrial process control, and medical instrumentation. The AD4683 is part of a pin-compatible family that includes the AD4682, which offers a higher throughput of 1 MSPS, allowing designers to scale performance without changing the PCB layout.
Key features of the AD4683 include dual simultaneous sampling, which ensures that both input channels are captured at the same instant, critical for applications like motor control and power monitoring. The device also offers a pseudo-differential input configuration, which provides common-mode rejection and reduces noise. With a 16-bit resolution, it delivers high precision, and its low power consumption makes it suitable for battery-powered devices.
The AD4683 uses a SAR architecture with an internal reference and a serial interface (SPI) for data output. It includes a conversion clock and supports daisy-chaining for multiple devices. The device operates over a temperature range of -40°C to +125°C, ensuring reliability in harsh environments. Its small LFCSP package and low power dissipation make it an excellent choice for portable and embedded systems.
Typical applications include industrial automation, data acquisition systems, motor control, and medical devices. The dual simultaneous sampling capability is particularly beneficial for applications requiring precise phase alignment between two signals, such as power quality analysis and vibration monitoring.
When designing with the AD4683, ensure that the analog input signals are within the specified common-mode range and that the reference voltage is stable. Proper decoupling of the power supply and careful PCB layout are essential to achieve the specified performance.
直接替换替代料： AD4683BCPZ ——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： AD4683BCPZ （相同外形与封装尺寸） ——差异在于 Input Type, Package, Resolution, Number of Inputs, Sampling Rate.
快速对比工具——选择替代料号进行并排对比：
AD4682BCPZ
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →AD4683BCPZ-RL7
✅ 直接替换📋 参考替代料（不在目录中）
AD4683BCPZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
AD4682BCPZ-RL7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD4682BCPZ-RL
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD4683BCPZ 最大额定值与电气特性
| 分辨率 | 16 bit |
| Number of Inputs | 2 |
| Input Type | Pseudo-Differential |
| 采样率 | 500 kSPS |
| Architecture | SAR |
| 电源电压 | 3.0 V to 3.6 V |
| 接口 | SPI |
| 封装 | 16-LFCSP (3x3 mm) |
| 工作温度 | -40°C to +125°C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
AD4683BCPZ 引脚配置
| 引脚 1 | AVDD — Analog power supply |
| 引脚 2 | VIN1+ — Positive analog input channel 1 |
| 引脚 3 | VIN1- — Negative analog input channel 1 |
| 引脚 4 | GND — Ground |
| 引脚 5 | VIN2+ — Positive analog input channel 2 |
| 引脚 6 | VIN2- — Negative analog input channel 2 |
| 引脚 7 | AVDD — Analog power supply |
| 引脚 8 | REF — Reference voltage input |
| 引脚 9 | GND — Ground |
| 引脚 10 | SCLK — Serial clock input |
| 引脚 11 | SDI — Serial data input |
| 引脚 12 | SDO — Serial data output |
| 引脚 13 | CS — Chip select |
| 引脚 14 | GND — Ground |
| 引脚 15 | DVDD — Digital power supply |
| 引脚 16 | GND — Ground |
典型应用
AD4683BCPZ 适用于 6 应用s: Industrial Data Acquisition, Motor Control, Medical Instrumentation, Power Quality Monitoring, Vibration Monitoring, Audio Test Equipment.
Industrial Data Acquisition
The AD4683BCPZ is ideal for industrial data acquisition systems that require high precision and dual simultaneous sampling. Its 16-bit resolution and 500 kSPS sampling rate enable accurate capture of analog signals from sensors and transducers. The pseudo-differential input reduces common-mode noise, ensuring reliable measurements in noisy industrial environments. The SPI interface simplifies integration with microcontrollers and PLCs, while the small LFCSP package saves board space. The wide operating temperature range of -40°C to +125°C ensures performance in harsh conditions.
推荐
Motor Control
In motor control applications, the AD4683BCPZ provides dual simultaneous sampling of phase currents and voltages, which is essential for accurate vector control algorithms. The 500 kSPS sampling rate allows real-time monitoring of fast-changing signals, while the 16-bit resolution ensures precise current sensing. The pseudo-differential input rejects common-mode noise from motor drives, improving signal integrity. The compact package and low power consumption make it suitable for embedded motor controllers. The SPI interface enables direct connection to DSPs or FPGAs for high-speed control loops.
推荐
Medical Instrumentation
The AD4683BCPZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its 16-bit resolution provides high accuracy for vital sign measurements, and the dual simultaneous sampling capability is useful for applications like ECG and EEG where multiple channels must be sampled synchronously. The low power consumption extends battery life in portable devices. The small LFCSP package allows for miniaturized designs, and the wide temperature range ensures reliability in clinical environments. The SPI interface simplifies data transfer to processing units.
推荐
Power Quality Monitoring
For power quality monitoring, the AD4683BCPZ enables simultaneous sampling of voltage and current waveforms, which is critical for calculating power parameters like active power, reactive power, and harmonics. The 500 kSPS sampling rate captures high-frequency transients, and the 16-bit resolution provides accurate measurements. The pseudo-differential input rejects common-mode noise from power lines. The device's low power consumption is beneficial for distributed monitoring nodes. The SPI interface allows easy integration with energy metering ICs or microcontrollers.
推荐
Vibration Monitoring
The AD4683BCPZ is used in vibration monitoring systems to capture accelerometer signals with high precision. Dual simultaneous sampling allows phase-accurate measurement of multiple vibration axes, which is essential for modal analysis and bearing fault detection. The 16-bit resolution ensures detection of small vibrations, and the 500 kSPS sampling rate captures high-frequency components. The pseudo-differential input reduces noise from long cable runs. The compact package is suitable for embedding in industrial sensors, and the wide temperature range supports outdoor installations.
推荐
Audio Test Equipment
In audio test equipment, the AD4683BCPZ provides high-resolution digitization of audio signals for analysis. The 16-bit resolution and 500 kSPS sampling rate are sufficient for audio frequencies up to 250 kHz, enabling measurement of harmonic distortion and frequency response. The dual simultaneous sampling allows comparison of two channels, such as left and right audio outputs. The low noise performance of the pseudo-differential input preserves signal fidelity. The SPI interface facilitates connection to audio analyzers or PCs.
推荐
推荐产品汇总
工程参考数据： AD4683BCPZ ——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 | AD4682BCPZ | AD4683BCPZ-RL7 | AD4683BCPZ-RL |
|---|---|---|---|---|
| Package | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Sampling Rate | 500 kSPS | 1 MSPS | 500 kSPS | 500 kSPS |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Number of Inputs | 2 | 2 | 2 | 2 |
| Input Type | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Interface | SPI | SPI | SPI | SPI |
关键差异点
- Dual simultaneous sampling （对比 AD7980BCPZ-RL7)
- Higher sampling rate than AD4683 （对比 AD4682BCPZ)
- Pin-compatible family （对比 AD4682BCPZ)
设计说明
Ensure that the AVDD and DVDD supplies are properly decoupled with 0.1 uF and 10 uF capacitors placed close to the pins. The AD4683 operates from 3.0 V to 3.6 V, so a clean 3.3 V supply is recommended. Use a low-noise LDO for analog supply to minimize noise coupling into the ADC.
For optimal performance, place the AD4683 close to the signal source to minimize trace length and reduce noise pickup. Use a solid ground plane and avoid routing digital signals under the analog input traces. The LFCSP package has an exposed pad that should be soldered to the ground plane for thermal and electrical performance.
Do not exceed the absolute maximum ratings for the analog inputs. The pseudo-differential inputs have a common-mode range that must be respected to avoid distortion. Ensure the reference voltage is stable and well-filtered, as it directly affects the ADC's accuracy. Also, avoid floating the CS pin; tie it to a defined logic level when not in use.
合规信息
RoHS compliance indicated on DigiKey product page. Other compliance data not specified in provided sources.