AD7389BCPZ - 16-Bit Quad SAR ADC 2MSPS | Analog Devices
MPN: AD7389BCPZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $47.22 | $47.22 |
| 10 | $43.5 | $435.00 |
| 100 | $39.8 | $3,980.00 |
| 500 | $36.1 | $18,050.00 |
| 1,000 | $32.4 | $32,400.00 |
Drop-in alternatives for AD7389BCPZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD7380-4BCPZ
β Drop-Inπ Reference alternative (not in catalog)
AD7381-4BCPZ
β Drop-Inπ Reference alternative (not in catalog)
AD7383-4BCPZ
β Drop-Inβ In Stock
$30.5 / Unit
View Datasheet βAD7384-4BCPZ
β Drop-Inβ In Stock
$11.05 / Unit
View Datasheet βAD4696BCPZ
β Drop-Inβ In Stock
$11.75 / Unit
View Datasheet βAD4695BCPZ
β Drop-Inβ In Stock
$18.5 / Unit
View Datasheet βAD7389BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Number of Inputs | 4 |
| Input Type | Differential |
| Sampling Rate | 2 MSPS |
| Architecture | SAR |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 24-LFCSP (4x4 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Reference Type | Internal |
| Interface | SPI |
| Simultaneous Sampling | Yes |
| Common-Mode Voltage Range | Wide |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
AD7389BCPZ Pin Configuration
| Pin 1 | AVDD β Analog power supply |
| Pin 2 | AIN0+ β Positive analog input channel 0 |
| Pin 3 | AIN0- β Negative analog input channel 0 |
| Pin 4 | AIN1+ β Positive analog input channel 1 |
| Pin 5 | AIN1- β Negative analog input channel 1 |
| Pin 6 | AIN2+ β Positive analog input channel 2 |
| Pin 7 | AIN2- β Negative analog input channel 2 |
| Pin 8 | AIN3+ β Positive analog input channel 3 |
| Pin 9 | AIN3- β Negative analog input channel 3 |
| Pin 10 | GND β Ground |
| Pin 11 | VREF β Reference voltage input/output |
| Pin 12 | DVDD β Digital power supply |
| Pin 13 | SCLK β Serial clock input |
| Pin 14 | SDI β Serial data input |
| Pin 15 | SDO β Serial data output |
| Pin 16 | CS β Chip select |
| Pin 17 | BUSY β Busy indicator output |
| Pin 18 | CONVST β Conversion start input |
| Pin 19 | GND β Ground |
| Pin 20 | AVDD β Analog power supply |
| Pin 21 | AIN0+ β Positive analog input channel 0 |
| Pin 22 | AIN0- β Negative analog input channel 0 |
| Pin 23 | AIN1+ β Positive analog input channel 1 |
| Pin 24 | AIN1- β Negative analog input channel 1 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD7389BCPZ is suitable for 6 applications: Motor Control, Power Monitoring, Data Acquisition Systems, Industrial Automation, Medical Instrumentation, Test and Measurement.
Motor Control
The AD7389BCPZ is ideal for motor control applications due to its 2 MSPS sampling rate and simultaneous sampling of four channels. It enables accurate current and voltage sensing in multi-phase motor drives, ensuring precise control and protection. The differential inputs reject common-mode noise, improving measurement accuracy in noisy industrial environments. The internal reference simplifies design, and the SPI interface allows easy integration with microcontrollers. The wide common-mode input range accommodates various sensor configurations, making it a versatile choice for servo drives, inverters, and robotics.
Recommended
Power Monitoring
The AD7389BCPZ is well-suited for power monitoring applications, such as three-phase power quality analyzers and smart grid equipment. Its simultaneous sampling ensures accurate phase alignment between voltage and current channels, which is critical for calculating real, reactive, and apparent power. The 16-bit resolution and 2 MSPS sampling rate capture fast transients and harmonics. The differential inputs allow direct connection to current transformers and voltage dividers, while the internal reference reduces component count. The SPI interface enables fast data transfer to a host processor for real-time analysis.
Recommended
Data Acquisition Systems
The AD7389BCPZ is an excellent choice for high-speed data acquisition systems in test and measurement, scientific instrumentation, and industrial automation. Its 2 MSPS sampling rate and 16-bit resolution provide high-speed, high-precision conversion. The quad simultaneous sampling capability allows synchronized acquisition of multiple signals, which is essential for applications like vibration analysis and multi-channel sensor monitoring. The differential inputs reject common-mode noise, and the internal reference simplifies the design. The compact 24-LFCSP package saves board space, and the SPI interface ensures easy integration with FPGAs and microcontrollers.
Recommended
Industrial Automation
In industrial automation, the AD7389BCPZ provides precise analog-to-digital conversion for process control, robotics, and factory automation. Its high speed and simultaneous sampling enable real-time monitoring of multiple sensors, such as pressure, temperature, and position. The differential inputs and wide common-mode range make it robust in electrically noisy environments. The internal reference reduces external component count, and the SPI interface allows seamless connection to PLCs and industrial controllers. The device's small footprint and low power consumption make it suitable for distributed I/O modules and compact control systems.
Recommended
Medical Instrumentation
The AD7389BCPZ is suitable for medical instrumentation, such as patient monitoring and diagnostic equipment, where high accuracy and reliability are critical. Its 16-bit resolution and 2 MSPS sampling rate enable precise measurement of physiological signals, such as ECG, EEG, and blood pressure. The simultaneous sampling capability is useful for multi-channel monitoring. The differential inputs reject common-mode interference, improving signal quality. The internal reference and small package make it ideal for portable devices. The SPI interface allows easy integration with medical-grade microcontrollers.
Recommended
Test and Measurement
The AD7389BCPZ is a key component in test and measurement equipment, such as oscilloscopes, data loggers, and spectrum analyzers. Its high sampling rate and 16-bit resolution allow accurate capture of fast signals. The quad simultaneous sampling enables multi-channel measurements, which is essential for comparing signals. The differential inputs provide high common-mode rejection, and the internal reference ensures stable performance. The compact package and SPI interface make it easy to integrate into benchtop and portable instruments. The device's low power consumption is beneficial for battery-powered test equipment.
Recommended
Recommended Products Summary
Engineering reference data for AD7389BCPZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7380-4BCPZ | AD7381-4BCPZ | AD7383-4BCPZ | AD7384-4BCPZ | AD4696BCPZ | AD4695BCPZ |
|---|---|---|---|---|---|---|---|
| Package | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit |
| Sampling Rate | 2 MSPS | 2 MSPS | 2 MSPS | 2 MSPS | 2 MSPS | 500 kSPS | 500 kSPS |
| Number of Inputs | 4 | 4 | 4 | 4 | 4 | 8 | 8 |
| Input Type | Differential | Differential | Differential | Differential | Differential | Differential | 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 | 3.0 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Internal Reference | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Simultaneous sampling of four channels (vs AD4696BCPZ)
- Higher sampling rate (vs AD4696BCPZ)
- Wide common-mode input range (vs AD7380-4BCPZ)
Design Notes
Decouple the AVDD and DVDD pins with 0.1 uF and 10 uF capacitors placed as close to the pins as possible. Use separate analog and digital ground planes to minimize noise coupling. The AD7389BCPZ operates from 3.0 V to 3.6 V, so ensure the supply is clean and stable.
For optimal performance, route the differential input traces symmetrically and keep them away from digital signals. Use a solid ground plane under the ADC. The 24-LFCSP package has an exposed pad that should be soldered to the ground plane for thermal and electrical performance.
Ensure the reference voltage is stable and well-decoupled. The internal reference requires a 1 uF capacitor on the VREF pin. Avoid driving the analog inputs beyond the specified common-mode range to prevent conversion errors. Also, ensure the SPI interface timing meets the datasheet specifications.
Compliance Information
RoHS compliant per distributor listings. Other compliance details not specified in the provided data.
