AD7380BCPZ - 16-Bit 4MSPS Dual SAR ADC | Analog Devices
料号： AD7380BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.34 | $12.34 |
| 10 | $11.28 | $112.80 |
| 100 | $9.87 | $987.00 |
| 500 | $8.65 | $4,325.00 |
| 1,000 | $7.89 | $7,890.00 |
AD7380BCPZ 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 motor control, power monitoring, and data acquisition systems. The AD7380 is part of a pin-compatible family that includes the 14-bit AD7381, allowing designers to easily scale resolution without redesigning the PCB.
Key features of the AD7380 include dual simultaneous sampling, which allows two channels to be sampled at exactly the same instant, critical for applications like three-phase power monitoring where phase alignment is essential. The device also offers a wide input common-mode range, simplifying interface to sensors and amplifiers. The internal reference buffer eliminates the need for external reference circuitry, reducing component count and board space. The SPI-compatible serial interface enables easy connection to microcontrollers and DSPs.
The AD7380 uses a standard SAR architecture with a capacitive DAC, providing excellent linearity and low noise. The device includes a track-and-hold circuit that captures the analog input at the moment of conversion, ensuring accurate sampling. The conversion process is controlled by standard control inputs, allowing simple interfacing to microprocessors or digital signal processors (DSPs). The device also features a power-down mode to reduce power consumption when not converting.
Typical applications for the AD7380 include motor control, where simultaneous sampling of phase currents is essential for accurate torque control; power monitoring, where voltage and current must be sampled simultaneously for accurate power calculation; and data acquisition systems, where high speed and precision are required. The device is also suitable for industrial automation, instrumentation, and medical equipment.
When designing with the AD7380, ensure that the reference voltage is stable and well-decoupled, as it directly affects conversion accuracy. The differential inputs should be driven with a low-impedance source to avoid settling time errors. The SPI interface should be kept short and properly terminated to avoid signal integrity issues at high throughput rates.
直接替换替代料： AD7380BCPZ ——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： AD7380BCPZ （相同外形与封装尺寸） ——差异在于 Input Type, Resolution, Interface, Supply Voltage, Number of Inputs.
快速对比工具——选择替代料号进行并排对比：
AD7380BCPZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
AD7381BCPZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.1 / 个
查看数据手册 →AD7380-4BCPZ
⚡ 相同封装📋 参考替代料（不在目录中）
AD4696BCPZ
⚡ 相同封装 ⚠️ 规格未核验✓ 有现货
$11.75 / 个
查看数据手册 →AD7380BCPZ 最大额定值与电气特性
| 分辨率 | 16 bits |
| Number of Inputs | 2 |
| Input Type | Differential |
| 采样率 | 4 MSPS |
| Architecture | SAR |
| 电源电压 | 3.0 V to 3.6 V |
| Internal Reference | 2.5 V buffered |
| External Reference Range | Up to 3.3 V |
| 封装 | 16-LFCSP (3x3 mm) |
| 接口 | SPI-compatible |
| 安装类型 | Surface Mount |
AD7380BCPZ 引脚配置
| 引脚 1 | VDD — Power supply |
| 引脚 2 | VIN1+ — Positive differential input channel 1 |
| 引脚 3 | VIN1- — Negative differential input channel 1 |
| 引脚 4 | GND — Ground |
| 引脚 5 | VIN2+ — Positive differential input channel 2 |
| 引脚 6 | VIN2- — Negative differential input channel 2 |
| 引脚 7 | GND — Ground |
| 引脚 8 | VREF — Reference voltage input/output |
| 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 | VIO — I/O supply voltage |
| 引脚 16 | VDD — Power supply |
典型应用
AD7380BCPZ 适用于 6 应用s: Motor Control, Power Monitoring, Data Acquisition Systems, Industrial Automation, Medical Instrumentation, Test and Measurement.
Motor Control
The AD7380BCPZ is ideal for motor control applications due to its dual simultaneous sampling capability, which allows precise measurement of phase currents at the same instant. This is critical for accurate torque control in AC and DC motor drives. The 4 MSPS sampling rate and 16-bit resolution provide the speed and accuracy needed for high-performance motor control loops. The differential inputs reject common-mode noise, ensuring clean current sensing signals. The device operates from a 3.3 V supply, making it compatible with modern motor control DSPs and MCUs. Its small LFCSP package saves board space in compact drives.
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Power Monitoring
In power monitoring systems, the AD7380BCPZ enables simultaneous sampling of voltage and current channels, which is essential for accurate power calculation. The dual ADC architecture ensures that voltage and current are sampled at the same instant, eliminating phase errors. The 16-bit resolution provides high accuracy for energy metering and power quality analysis. The wide common-mode input range allows direct connection to voltage and current sensors. The SPI interface simplifies data transfer to a host processor. The device's low power consumption is beneficial for always-on monitoring applications.
推荐
Data Acquisition Systems
The AD7380BCPZ is well-suited for high-speed data acquisition systems (DAQ) that require simultaneous sampling of multiple channels. Its 4 MSPS throughput and 16-bit resolution make it ideal for capturing fast transient signals. The differential inputs provide good common-mode rejection, reducing noise in industrial environments. The internal reference simplifies design, while the SPI interface allows easy integration with FPGAs and microcontrollers. The compact LFCSP package is perfect for multi-channel DAQ cards where space is at a premium. The device's low power dissipation helps manage thermal budgets in dense systems.
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Industrial Automation
In industrial automation, the AD7380BCPZ provides precise analog-to-digital conversion for process control, condition monitoring, and robotics. Its dual simultaneous sampling is useful for applications like vibration analysis where multiple sensors must be sampled in sync. The 16-bit resolution ensures high accuracy for measurement and control loops. The device operates over a wide temperature range, making it suitable for harsh industrial environments. The SPI interface is compatible with common industrial microcontrollers. The small package allows for dense PCB layouts in control modules.
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Medical Instrumentation
The AD7380BCPZ is suitable for medical instrumentation such as patient monitoring and diagnostic equipment. Its high resolution and low noise are essential for accurate biomedical signal acquisition. The dual simultaneous sampling can be used for applications like ECG where multiple leads are sampled simultaneously. The low power consumption is beneficial for battery-powered portable devices. The small package is ideal for compact medical devices. The device's SPI interface allows easy integration with medical-grade microcontrollers. The wide common-mode input range helps reject interference from the human body.
推荐
Test and Measurement
The AD7380BCPZ is used in test and measurement equipment such as oscilloscopes, spectrum analyzers, and data loggers. Its high sampling rate and 16-bit resolution enable accurate capture of fast signals. The dual simultaneous sampling is useful for comparing two signals in time. The differential inputs provide good common-mode rejection, reducing measurement errors. The internal reference simplifies calibration. The SPI interface allows high-speed data transfer to the processing unit. The compact package is suitable for portable test instruments.
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推荐产品汇总
工程参考数据： AD7380BCPZ ——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 | AD7380BCPZ-RL | AD7381BCPZ | AD7380-4BCPZ |
|---|---|---|---|---|
| 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 |
| Resolution | 16 bits | 16 bits | 14 bits | 16 bits |
| Sampling Rate | 4 MSPS | 4 MSPS | 5 MSPS | 4 MSPS |
| Number of Inputs | 2 | 2 | 2 | 4 |
| Input Type | Differential | Differential | Differential | Differential |
| Internal Reference | 2.5 V buffered | 2.5 V buffered | 2.5 V buffered | 2.5 V buffered |
| 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 |
关键差异点
- Dual simultaneous sampling （对比 AD7980BCPZ)
- Higher sampling rate （对比 AD4696BCPZ)
- Internal reference buffer （对比 AD7980BCPZ)
设计说明
Decouple the VDD and VIO pins with 0.1 uF and 10 uF capacitors placed as close to the pins as possible. The VIO pin should be connected to the same supply as the host interface to ensure proper logic levels. Use a low-noise LDO for the analog supply to minimize noise coupling into the ADC.
For optimal performance, use a solid ground plane under the ADC and route the differential input traces symmetrically. Keep the SPI lines short and avoid routing them near high-speed digital signals. The exposed pad on the LFCSP package should be soldered to the ground plane for thermal and electrical performance.
Ensure the reference voltage is stable and well-decoupled. A noisy reference will directly degrade the ADC's accuracy. Also, the differential inputs should be driven with a low-impedance source to avoid settling time errors. Avoid exceeding the absolute maximum ratings on any pin.
合规信息
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details not specified in the provided data.