AD7380BCPZ - 16-Bit 4MSPS Dual SAR ADC | Analog Devices
MPN: AD7380BCPZ ✓ فعالAD7380BCPZ نمای کلی
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.
جایگزین‌های drop-in برای AD7380BCPZ — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای AD7380BCPZ (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Input Type, Resolution, Interface, Supply Voltage, Number of Inputs.
AD7380BCPZ-RL
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
AD7381BCPZ
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD7380-4BCPZ
⚡ پکیج یکسان📋 جایگزین مرجع (خارج از کاتالوگ)
AD4696BCPZ
⚡ پکیج یکسان ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD7380BCPZ حداکثر مقادیر مجاز و مشخصات الکتریکی
| رزولوشن | 16 bits |
| Number of Inputs | 2 |
| Input Type | Differential |
| نرخ نمونه‌برداری | 4 MSPS |
| Architecture | SAR |
| ولتاژ تغذیه | 3.0 V to 3.6 V |
| Internal Reference | 2.5 V buffered |
| External Reference Range | Up to 3.3 V |
| بسته‌بندی | 16-LFCSP (3x3 mm) |
| رابط | SPI-compatible |
| نوع نصب | Surface Mount |
پیکربندی پین AD7380BCPZ
| پین 1 | VDD — Power supply |
| پین 2 | VIN1+ — Positive differential input channel 1 |
| پین 3 | VIN1- — Negative differential input channel 1 |
| پین 4 | GND — Ground |
| پین 5 | VIN2+ — Positive differential input channel 2 |
| پین 6 | VIN2- — Negative differential input channel 2 |
| پین 7 | GND — Ground |
| پین 8 | VREF — Reference voltage input/output |
| پین 9 | GND — Ground |
| پین 10 | SCLK — Serial clock input |
| پین 11 | SDI — Serial data input |
| پین 12 | SDO — Serial data output |
| پین 13 | CS — Chip select |
| پین 14 | GND — Ground |
| پین 15 | VIO — I/O supply voltage |
| پین 16 | VDD — Power supply |
کاربردهای معمول
AD7380BCPZ مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای AD7380BCPZ — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- Dual simultaneous sampling (در مقابلAD7980BCPZ)
- Higher sampling rate (در مقابلAD4696BCPZ)
- Internal reference buffer (در مقابلAD7980BCPZ)
یادداشت‌های طراحی
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.
اطلاعات انطباق
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details not specified in the provided data.