AD7380BCPZ - 16-Bit 4MSPS Dual SAR ADC | Analog Devices
N.º de pieza: AD7380BCPZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 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 Descripción general
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.
Alternativas directas para AD7380BCPZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con AD7380BCPZ (mismo factor de forma y huella) — difiere en Input Type, Resolution, Interface, Supply Voltage, Number of Inputs.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
AD7380BCPZ-RL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AD7381BCPZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$8.1 / unidad
Ver hoja de datos →AD7380-4BCPZ
⚡ Mismo encapsulado📋 Alternativa de referencia (no en el catálogo)
AD4696BCPZ
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar✓ En stock
$11.75 / unidad
Ver hoja de datos →AD7380BCPZ Valores máximos y características eléctricas
| Resolución | 16 bits |
| Number of Inputs | 2 |
| Input Type | Differential |
| Frecuencia de muestreo | 4 MSPS |
| Architecture | SAR |
| Tensión de alimentación | 3.0 V to 3.6 V |
| Internal Reference | 2.5 V buffered |
| External Reference Range | Up to 3.3 V |
| Encapsulado | 16-LFCSP (3x3 mm) |
| Interfaz | SPI-compatible |
| Tipo de montaje | Surface Mount |
Configuración de pines de AD7380BCPZ
| Pin 1 | VDD — Power supply |
| Pin 2 | VIN1+ — Positive differential input channel 1 |
| Pin 3 | VIN1- — Negative differential input channel 1 |
| Pin 4 | GND — Ground |
| Pin 5 | VIN2+ — Positive differential input channel 2 |
| Pin 6 | VIN2- — Negative differential input channel 2 |
| Pin 7 | GND — Ground |
| Pin 8 | VREF — Reference voltage input/output |
| Pin 9 | GND — Ground |
| Pin 10 | SCLK — Serial clock input |
| Pin 11 | SDI — Serial data input |
| Pin 12 | SDO — Serial data output |
| Pin 13 | CS — Chip select |
| Pin 14 | GND — Ground |
| Pin 15 | VIO — I/O supply voltage |
| Pin 16 | VDD — Power supply |
Aplicaciones típicas
AD7380BCPZ es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AD7380BCPZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Dual simultaneous sampling (frente a AD7980BCPZ)
- Higher sampling rate (frente a AD4696BCPZ)
- Internal reference buffer (frente a AD7980BCPZ)
Notas de diseño
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.
Información de cumplimiento
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details not specified in the provided data.