AD7383-4BCPZ - 16-Bit Quad SAR ADC 2MSPS | Analog Devices
MPN: AD7383-4BCPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $40.95 | $40.95 |
| 10 | $38.5 | $385.00 |
| 100 | $35.2 | $3,520.00 |
| 500 | $32.8 | $16,400.00 |
| 1,000 | $30.5 | $30,500.00 |
AD7383-4BCPZ Overview
An ADC (analog-to-digital converter) is a device that converts continuous analog signals into discrete digital values. The AD7383-4BCPZ is a SAR ADC, which uses a binary search algorithm to determine the digital output, offering a good balance of speed, resolution, and power consumption. SAR ADCs are widely used in data acquisition systems, motor control, and power monitoring due to their high accuracy and low latency.
Key features of the AD7383-4BCPZ include four pseudo-differential input channels, a buffered internal 2.5 V reference, and an optional external reference up to 3.3 V. It also features an on-chip oversampling block that can improve dynamic range and reduce noise at lower bandwidths, boosting up to two bits of added resolution. The device supports SPI interface with a 4 MHz clock, and includes a FIFO buffer, soft reset, and power-on reset functions.
The AD7383-4BCPZ is pin-compatible with the 14-bit AD7384-4, allowing easy upgrades without PCB redesign. It offers a signal-to-noise ratio (SNR) of 86.7 dB and a typical power consumption of 200 µA, making it ideal for battery-powered and high-density systems. The device operates over a temperature range of -40°C to +125°C, suitable for harsh environments.
Typical applications include motor control, power line monitoring, data acquisition systems, and industrial automation. The simultaneous sampling capability ensures accurate phase alignment between channels, which is critical for three-phase motor control and power quality analysis.
When designing with this ADC, ensure proper decoupling of the power supply and reference pins, and use a low-noise reference for optimal performance. The SPI interface should be isolated if used in noisy industrial environments.
Drop-in alternatives for AD7383-4BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD7383-4BCPZ (same form factor and footprint) — differing in Package, Resolution, Input Type, Reference Type, Sampling Rate.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD7384-4BCPZ
✅ Drop-In✓ In Stock
$11.05 / Unit
View Datasheet →AD7383-4BCPZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
AD7383-4BCPZ-RL7
✅ Drop-In📋 Reference alternative (not in catalog)
ADS8354
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD7380-4BCPZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD7383-4BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Number of Channels | 4 |
| Sampling Rate | 2 MSPS |
| Input Type | Pseudo-differential |
| Interface | SPI |
| Supply Voltage | 3.0 V to 3.3 V |
| Internal Reference | 2.5 V buffered |
| External Reference Range | Up to 3.3 V |
| SNR | 86.7 dB |
| Power Consumption | 200 µA typical |
| Operating Temperature Range | -40°C to +125°C |
| Package | 24-LFCSP (4x4 mm) |
| Mounting Type | Surface Mount |
| Oversampling | Up to 2 bits added resolution |
| RoHS | Compliant |
AD7383-4BCPZ Pin Configuration
| Pin 1 | AVDD — Analog power supply |
| Pin 2 | AIN0+ — Positive analog input channel 0 |
| Pin 3 | AIN0- — Negative analog input channel 0 |
| Pin 4 | AIN1+ — Positive analog input channel 1 |
| Pin 5 | AIN1- — Negative analog input channel 1 |
| Pin 6 | AIN2+ — Positive analog input channel 2 |
| Pin 7 | AIN2- — Negative analog input channel 2 |
| Pin 8 | AIN3+ — Positive analog input channel 3 |
| Pin 9 | AIN3- — Negative analog input channel 3 |
| Pin 10 | REFIN/REFOUT — Reference input/output |
| Pin 11 | GND — Ground |
| Pin 12 | DVDD — Digital power supply |
| Pin 13 | SCLK — Serial clock input |
| Pin 14 | SDI — Serial data input |
| Pin 15 | SDO — Serial data output |
| Pin 16 | CS — Chip select |
| Pin 17 | CNVST — Conversion start |
| Pin 18 | BUSY — Busy indicator |
| Pin 19 | RESET — Reset input |
| Pin 20 | PDR — Power-down reset |
| Pin 21 | VIO — I/O supply voltage |
| Pin 22 | GND — Ground |
| Pin 23 | AVDD — Analog power supply |
| Pin 24 | EP — Exposed pad (thermal) |
Typical Applications
AD7383-4BCPZ is suitable for 6 applications: Motor Control, Power Line Monitoring, Data Acquisition Systems, Industrial Automation, Automotive Battery Management, Medical Imaging.
Motor Control
The AD7383-4BCPZ's quad simultaneous sampling capability ensures accurate phase alignment between current and voltage measurements, which is critical for three-phase motor control. Its 2 MSPS throughput and 16-bit resolution enable precise feedback loops, improving torque and efficiency. The device operates from 3.0 V to 3.3 V, compatible with typical DSP supply rails. Its low power consumption of 200 µA is beneficial in power-sensitive designs. The SPI interface simplifies connection to motor control processors. The wide temperature range of -40°C to +125°C suits industrial environments.
Recommended
Power Line Monitoring
The AD7383-4BCPZ is ideal for power line monitoring due to its simultaneous sampling of multiple phases, ensuring accurate phase relationships for power quality analysis. Its 16-bit resolution and 86.7 dB SNR provide high accuracy for voltage and current measurements. The device's 2 MSPS sampling rate captures harmonics up to the Nyquist frequency. The internal 2.5 V reference simplifies design, while the SPI interface allows easy data transfer to a host processor. The wide temperature range supports outdoor installation. Low power consumption is advantageous for remote monitoring nodes.
Recommended
Data Acquisition Systems
The AD7383-4BCPZ is well-suited for data acquisition systems requiring high-speed, multi-channel simultaneous sampling. Its 16-bit resolution and 2 MSPS throughput enable accurate capture of fast transients. The pseudo-differential inputs reject common-mode noise, improving signal integrity. The device's SPI interface simplifies integration with microcontrollers and FPGAs. The compact 24-LFCSP package saves board space. The internal reference reduces external component count. The device's low power consumption is beneficial for portable DAQ devices. The wide temperature range allows use in various environments.
Recommended
Industrial Automation
In industrial automation, the AD7383-4BCPZ provides precise analog-to-digital conversion for process control and monitoring. Its quad channels allow simultaneous sampling of multiple sensors, reducing latency. The 16-bit resolution ensures high accuracy, while the 2 MSPS speed handles fast-changing signals. The device's robust temperature range and low power consumption make it suitable for factory floor environments. The SPI interface enables easy connection to PLCs and industrial controllers. The internal reference simplifies design, and the compact package fits space-constrained modules.
Recommended
Automotive Battery Management
The AD7383-4BCPZ is suitable for automotive battery management systems (BMS) due to its high accuracy and wide temperature range. It can monitor multiple cell voltages simultaneously, ensuring precise state-of-charge estimation. The 16-bit resolution and 86.7 dB SNR provide accurate measurements. The device operates from 3.0 V to 3.3 V, compatible with automotive power rails. Its low power consumption is critical for battery-powered systems. The SPI interface allows communication with the BMS controller. The compact package is ideal for space-constrained automotive modules.
Recommended
Medical Imaging
The AD7383-4BCPZ can be used in medical imaging systems where high-speed, multi-channel data acquisition is required. Its 16-bit resolution and 2 MSPS sampling rate enable accurate digitization of sensor signals. The simultaneous sampling ensures temporal alignment across channels, which is crucial for imaging. The device's low power consumption is beneficial for portable medical devices. The compact package allows integration into space-limited equipment. The wide temperature range supports various operating conditions. The SPI interface simplifies connection to image processing units.
Recommended
Recommended Products Summary
Engineering reference data for AD7383-4BCPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7384-4BCPZ | AD7383-4BCPZ-RL | ADS8354 |
|---|---|---|---|---|
| Package | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) | 24-LFCSP (4x4 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 16 bits | 14 bits | 16 bits | 16 bits |
| Number of Channels | 4 | 4 | 4 | 2 |
| Sampling Rate | 2 MSPS | 2 MSPS | 2 MSPS | 2 MSPS |
| Supply Voltage | 3.0 V to 3.3 V | 3.0 V to 3.3 V | 3.0 V to 3.3 V | 2.7 V to 5.5 V |
| SNR | 86.7 dB | 80 dB | 86.7 dB | 91 dB |
| Power Consumption | 200 µA | 200 µA | 200 µA | 15 mW |
Key Differentiators
- Quad simultaneous sampling (vs ADS8354)
- Pin-compatible with 14-bit AD7384-4 (vs AD7384-4BCPZ)
- Low power consumption (vs ADS8354)
Design Notes
Ensure clean power supply for AVDD and DVDD. Use low-dropout regulators (LDOs) with low noise output, and place 0.1 µF and 10 µF decoupling capacitors close to the power pins. The AD7383-4BCPZ operates from 3.0 V to 3.3 V, so a stable supply is critical for maintaining SNR and linearity.
For optimal performance, use a solid ground plane and separate analog and digital ground areas. Place the ADC close to the signal source to minimize trace length and noise pickup. Use differential routing for the analog inputs to maintain pseudo-differential performance. The exposed pad should be soldered to the ground plane for thermal and electrical stability.
Avoid driving the analog inputs beyond the supply rails, as this can cause latch-up or damage. Ensure the reference voltage is stable and low-noise; use a precision reference like the ADR4525 for best performance. The SPI interface should be isolated if used in noisy industrial environments to prevent data corruption.
Compliance Information
RoHS compliant per JLCPCB listing. Other compliance data not specified in provided sources.