AD4680BCPZ - 16-Bit 1MSPS Dual SAR ADC | Analog Devices
MPN: AD4680BCPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $33.67 | $33.67 |
| 10 | $31.5 | $315.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $26.4 | $13,200.00 |
| 1,000 | $24.1 | $24,100.00 |
Drop-in alternatives for AD4680BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD4681BCPZ
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →AD7380BCPZ
✅ Drop-In✓ In Stock
$7.89 / Unit
View Datasheet →AD7381BCPZ
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →AD4680BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 Bit |
| Number of Inputs | 2 |
| Input Type | Differential |
| Sampling Rate | 1 MSPS |
| Architecture | SAR |
| Supply Voltage | 3.0 V to 3.6 V |
| Interface | SPI |
| Package | 16-LFCSP (3x3 mm) |
| Operating Temperature | -40°C to +125°C |
| Power Dissipation | 15 mW (typical) |
| Reference Voltage | 2.5 V (internal) |
| SNR | 92 dB (typical) |
| INL | ±1 LSB (typical) |
| DNL | ±1 LSB (typical) |
| RoHS | Compliant |
AD4680BCPZ Pin Configuration
| Pin 1 | VIN1+ — Positive differential input channel 1 |
| Pin 2 | VIN1- — Negative differential input channel 1 |
| Pin 3 | VIN2+ — Positive differential input channel 2 |
| Pin 4 | VIN2- — Negative differential input channel 2 |
| Pin 5 | GND — Ground |
| Pin 6 | VREF — Reference voltage input/output |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | DVDD — Digital supply voltage |
| Pin 9 | SCLK — Serial clock input |
| Pin 10 | SDI — Serial data input |
| Pin 11 | SDO — Serial data output |
| Pin 12 | CS — Chip select (active low) |
| Pin 13 | BUSY — Busy indicator output |
| Pin 14 | RESET — Reset input |
| Pin 15 | PD — Power-down input |
| Pin 16 | EP — Exposed pad (ground) |
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
AD4680BCPZ is suitable for 6 applications: Motor Control, Data Acquisition Systems, Medical Instrumentation, Power Monitoring, Industrial Automation, Test and Measurement.
Motor Control
The AD4680BCPZ is ideal for motor control applications due to its dual simultaneous sampling capability, which allows accurate measurement of phase currents and voltages at the same instant. With 16-bit resolution and 1 MSPS sampling rate, it provides high precision for current sensing loops. The differential inputs reject common-mode noise from motor drives, ensuring clean signals. The low power consumption of 15 mW is beneficial for compact drives. The SPI interface simplifies connection to microcontrollers. The wide temperature range of -40°C to +125°C ensures reliable operation in industrial environments. The small LFCSP package saves PCB space, enabling high-density designs.
Recommended
Data Acquisition Systems
The AD4680BCPZ is well-suited for data acquisition systems requiring high-speed, high-resolution conversion of multiple channels. Its dual simultaneous sampling ensures phase alignment between channels, which is critical for accurate power analysis and vibration monitoring. The 16-bit resolution and 1 MSPS throughput allow capturing fast transients. The SPI interface supports daisy-chaining for multi-device systems. The low power consumption makes it suitable for portable data loggers. The device's small footprint enables compact designs. The internal reference simplifies the BOM, reducing system cost. The wide operating temperature range supports outdoor and industrial applications.
Recommended
Medical Instrumentation
In medical instrumentation, the AD4680BCPZ provides high-precision conversion for patient monitoring and diagnostic equipment. Its 16-bit resolution ensures accurate measurement of physiological signals. The dual simultaneous sampling is useful for applications like ECG, where multiple leads must be sampled simultaneously. The low power consumption extends battery life in portable devices. The small package is ideal for wearable monitors. The device's high SNR of 92 dB ensures clean signal acquisition. The SPI interface allows easy integration with medical-grade microcontrollers. The wide temperature range ensures reliable operation in clinical environments.
Recommended
Power Monitoring
The AD4680BCPZ is used in power monitoring systems to measure voltage and current with high accuracy. Its dual simultaneous sampling ensures that voltage and current are sampled at the same instant, enabling accurate power calculation. The 16-bit resolution provides fine granularity for detecting small changes in power consumption. The differential inputs reject noise from power lines. The device operates from a 3.3V supply, making it compatible with common power monitoring ICs. The SPI interface allows easy connection to energy metering processors. The low power consumption is beneficial for always-on monitoring. The compact package fits into smart meters and industrial power analyzers.
Recommended
Industrial Automation
The AD4680BCPZ is suitable for industrial automation applications such as process control and machine vision. Its high speed and resolution enable precise measurement of analog sensors. The dual simultaneous sampling is useful for applications requiring synchronized data from two sensors. The device's robust design operates over a wide temperature range, making it suitable for harsh factory environments. The SPI interface supports high-speed data transfer to PLCs and industrial controllers. The low power consumption reduces heat generation in enclosed cabinets. The small package allows integration into compact sensor modules. The device's excellent linearity ensures accurate control loops.
Recommended
Test and Measurement
In test and measurement equipment, the AD4680BCPZ provides high-speed, high-resolution conversion for oscilloscopes, spectrum analyzers, and data loggers. Its 1 MSPS sampling rate allows capturing fast signals, while the 16-bit resolution ensures accurate amplitude measurement. The dual simultaneous sampling is useful for comparing two signals in phase. The device's low noise and high SNR make it suitable for precision measurements. The SPI interface allows easy integration with FPGAs and DSPs. The small package enables compact instrument designs. The wide temperature range ensures stable performance in benchtop and portable instruments.
Recommended
Recommended Products Summary
Engineering reference data for AD4680BCPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4681BCPZ | AD7380BCPZ | AD7381BCPZ |
|---|---|---|---|---|
| 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 Bit | 16 Bit | 16 Bit | 16 Bit |
| Sampling Rate | 1 MSPS | 500 kSPS | 4 MSPS | 2 MSPS |
| Number of Inputs | 2 | 2 | 2 | 2 |
| Input Type | 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 |
| Interface | SPI | SPI | SPI | SPI |
Key Differentiators
- Dual simultaneous sampling (vs AD4681BCPZ)
- Higher sampling rate (vs AD4681BCPZ)
- Pin-compatible with AD7380/AD7381 (vs AD7380BCPZ)
Design Notes
The AD4680BCPZ operates from a 3.0V to 3.6V supply. Use a low-noise LDO regulator, such as the ADP151, to provide a clean AVDD. Decouple AVDD and DVDD with 0.1uF and 10uF capacitors placed close to the pins. The reference voltage should be decoupled with a 10uF capacitor to ensure stability.
For optimal performance, use a solid ground plane and minimize trace lengths for analog inputs. Keep digital signals away from analog inputs to reduce coupling. Use a star-ground topology to avoid ground loops. The exposed pad should be soldered to the ground plane for thermal and electrical performance.
Ensure the reference voltage is stable and within the specified range. Avoid driving the reference with a high-impedance source. The SPI interface should be operated within the specified timing requirements. Do not exceed the absolute maximum ratings for supply voltage and input pins.
Compliance Information
RoHS compliant per distributor data. Other compliance information not specified in the provided data.
