AD7980BCPZ-RL7 - 16-Bit 1 MSPS PulSAR ADC | Analog Devices
MPN: AD7980BCPZ-RL7 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $27.22 | $27.22 |
| 10 | $25.1 | $251.00 |
| 100 | $22.5 | $2,250.00 |
| 500 | $20 | $10,000.00 |
| 1,000 | $18 | $18,000.00 |
Drop-in alternatives for AD7980BCPZ-RL7 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:
AD7980BCPZ-RL
β Drop-Inπ Reference alternative (not in catalog)
AD7982BCPZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
AD7980BCPZ-RL7 Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Number of Inputs | 1 |
| Input Type | Pseudo-differential |
| Data Interface | SPI |
| Sampling Rate | 1 MSPS |
| Architecture | SAR |
| INL (Typical) | Β±0.6 LSB |
| INL (Maximum) | Β±1.25 LSB |
| SINAD | [DATA_NEEDED: SINAD value] dB at 10 kHz |
| THD | [DATA_NEEDED: THD value] dB at 10 kHz |
| Analog Input Range | 0 V to VREF |
| Reference Voltage | External, independent of VDD |
| Supply Voltage | 2.3 V to 5.5 V |
| Power Dissipation | [DATA_NEEDED: Power dissipation at 1 MSPS] mW |
| Package | 10-LFCSP-WD (3x3 mm) |
| Operating Temperature | -40Β°C to +125Β°C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD7980BCPZ-RL7 Pin Configuration
| Pin 1 | IN+ β Positive analog input |
| Pin 2 | IN- β Negative analog input (pseudo-differential) |
| Pin 3 | GND β Ground |
| Pin 4 | VDD β Power supply |
| Pin 5 | REF β Reference voltage input |
| Pin 6 | SDI β Serial data input (for daisy-chain) |
| Pin 7 | SCK β Serial clock input |
| Pin 8 | SDO β Serial data output |
| Pin 9 | CNV β Convert input (start conversion) |
| Pin 10 | VIO β I/O supply voltage |
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
AD7980BCPZ-RL7 is suitable for 6 applications: Battery-Powered Instruments, Data Acquisition Systems, Industrial Process Control, Medical Instrumentation, Portable Test Equipment, Precision Sensor Interfaces.
Battery-Powered Instruments
The AD7980BCPZ-RL7's low power dissipation, which scales linearly with throughput, makes it ideal for battery-powered instruments such as portable multimeters and data loggers. At lower sampling rates, power consumption drops significantly, extending battery life. The small 3x3 mm LFCSP package also saves board space in compact handheld devices. The SPI interface allows easy integration with low-power microcontrollers, and the pseudo-differential input can directly interface with sensors like thermocouples or strain gauges.
Recommended
Data Acquisition Systems
In multi-channel data acquisition systems, the AD7980BCPZ-RL7 provides high-speed, 16-bit precision conversion. Its 1 MSPS throughput allows sampling of fast-changing signals, while the daisy-chain feature enables multiple ADCs to share a single SPI bus, reducing wiring and GPIO usage. The external reference allows the input range to be matched to the signal conditioning circuitry, ensuring optimal use of the ADC's dynamic range. The low INL (Β±0.6 LSB typical) ensures accurate representation of the analog signal.
Recommended
Industrial Process Control
The AD7980BCPZ-RL7 is well-suited for industrial process control systems that require high accuracy and reliability. Its wide operating temperature range (-40Β°C to +125Β°C) ensures performance in harsh environments. The SAR architecture provides fast, deterministic conversion times, which is critical for real-time control loops. The SPI interface allows direct connection to industrial microcontrollers or PLCs, and the pseudo-differential input helps reject common-mode noise from sensors and long cable runs.
Recommended
Medical Instrumentation
In medical devices such as patient monitors and diagnostic equipment, the AD7980BCPZ-RL7 offers the precision and low noise required for accurate measurements. The 16-bit resolution and low INL ensure reliable data for vital sign monitoring. The small package and low power consumption are advantageous for portable and wearable medical devices. The external reference allows calibration to a known standard, improving measurement accuracy. The SPI interface simplifies integration with medical-grade microcontrollers.
Recommended
Portable Test Equipment
The AD7980BCPZ-RL7 is ideal for portable test equipment like handheld oscilloscopes and spectrum analyzers. Its 1 MSPS sampling rate allows capturing transient signals, while the low power consumption extends battery life. The compact LFCSP package enables dense PCB layouts, and the SPI interface supports high-speed data transfer to the processing unit. The pseudo-differential input can be configured for various input ranges, making it versatile for different measurement tasks.
Recommended
Precision Sensor Interfaces
The AD7980BCPZ-RL7 excels in precision sensor interfaces, such as those for pressure, temperature, and strain sensors. Its 16-bit resolution and low INL ensure accurate digitization of small sensor signals. The external reference allows the ADC's full-scale range to be matched to the sensor output, maximizing resolution. The low power dissipation is beneficial for sensor nodes in IoT applications. The SPI interface and daisy-chain capability enable efficient multi-sensor data acquisition.
Recommended
Recommended Products Summary
Engineering reference data for AD7980BCPZ-RL7 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7980BCPZ-RL | AD7982BCPZ-RL7 | AD7980BRMZ-RL7 |
|---|---|---|---|---|
| Package | 10-LFCSP-WD (3x3) | 10-LFCSP-WD (3x3) | 10-LFCSP-WD (3x3) | 10-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bits | 16 bits | 18 bits | 16 bits |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS |
| INL (Max) | Β±1.25 LSB | Β±1.25 LSB | Β±1.5 LSB | Β±1.25 LSB |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Interface | SPI | SPI | SPI | SPI |
| Power Dissipation | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Pin-for-pin compatible with 18-bit AD7982 (vs AD7982BCPZ-RL7)
- Low power dissipation scaling with throughput (vs AD7680BRMZ)
- Small 3x3 mm LFCSP package (vs AD7980BRMZ-RL7)
Design Notes
The AD7980BCPZ-RL7 operates from a single supply (VDD) of 2.3 V to 5.5 V. Decouple VDD with a 10 Β΅F and 0.1 Β΅F capacitor placed close to the pin. The reference input (REF) should be decoupled with a 10 Β΅F capacitor to ensure stability and low noise, as the reference directly affects conversion accuracy.
For optimal performance, place the ADC close to the signal source to minimize trace inductance. Use a solid ground plane and avoid routing digital signals under the analog input pins. The LFCSP package has an exposed pad that should be soldered to the ground plane for thermal and electrical performance.
Ensure the analog input source impedance is low enough to drive the ADC's sampling capacitor. A high source impedance can cause settling errors. Use an op-amp buffer if necessary. Also, avoid exceeding the absolute maximum ratings on any pin, as this can damage the device.
Compliance Information
RoHS compliance confirmed from distributor listings. Other compliance data not specified in provided sources.
