AD7766-2BRUZ - 24-Bit 32kSPS ADC | Analog Devices
MPN: AD7766-2BRUZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.8 | $980.00 |
| 500 | $8.9 | $4,450.00 |
| 1,000 | $8.1 | $8,100.00 |
Drop-in alternatives for AD7766-2BRUZ 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:
AD7766-1BRUZ
β Drop-Inπ Reference alternative (not in catalog)
AD7766BRUZ
β Drop-Inβ In Stock
$5.03 / Unit
View Datasheet βAD7766-2BRUZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
ADS1271
β‘ Same Packageπ Reference alternative (not in catalog)
LTC2440
β‘ Same Packageπ Reference alternative (not in catalog)
AD7766-2BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 bit |
| Number of Input Channels | 1 |
| Sampling Rate | 32 kSPS |
| Dynamic Range | 115.5 dB |
| Power Consumption | 8.5 mW |
| Supply Voltage | 2.375 V to 2.625 V |
| Architecture | Oversampled SAR |
| Package | 16-lead TSSOP |
| Output Data Format | MSB-first, twos complement |
| Interface | Serial (SPI-compatible) |
| Operating Temperature Range | -40Β°C to +105Β°C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Input Type | Single-ended |
| Reference Type | External |
AD7766-2BRUZ Pin Configuration
| Pin 1 | VREF β Reference voltage input |
| Pin 2 | VIN β Analog input |
| Pin 3 | GND β Ground |
| Pin 4 | GND β Ground |
| Pin 5 | MCLK β Master clock input |
| Pin 6 | SYNC β Synchronization input |
| Pin 7 | PDWN β Power-down input |
| Pin 8 | SCLK β Serial clock input |
| Pin 9 | CS β Chip select input |
| Pin 10 | SDO β Serial data output |
| Pin 11 | DRDY β Data ready output |
| Pin 12 | VDD β Power supply |
| Pin 13 | VDD β Power supply |
| Pin 14 | GND β Ground |
| Pin 15 | GND β Ground |
| Pin 16 | VREF β Reference voltage input |
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
AD7766-2BRUZ is suitable for 6 applications: Vibration Monitoring, Industrial Process Control, Medical Instrumentation, High-Precision Data Acquisition, Portable Instrumentation, Audio Test Equipment.
Vibration Monitoring
The AD7766-2BRUZ's 115.5 dB dynamic range and 32 kSPS sampling rate enable precise detection of vibration signatures in industrial machinery. Its low 8.5 mW power consumption allows deployment in battery-powered wireless sensor nodes. The oversampled SAR architecture provides low latency, essential for real-time condition monitoring. When interfacing with accelerometers, the high dynamic range captures both small and large vibrations without saturation, ensuring accurate frequency analysis for predictive maintenance.
Recommended
Industrial Process Control
In industrial process control, the AD7766-2BRUZ provides 24-bit resolution and 115.5 dB dynamic range, ensuring accurate measurement of sensor signals such as temperature, pressure, and flow. Its 32 kSPS sampling rate is sufficient for most control loops, while the low power consumption reduces heat generation in enclosed systems. The SPI-compatible interface simplifies integration with PLCs and microcontrollers. The device's high accuracy minimizes measurement errors, improving process efficiency and product quality.
Recommended
Medical Instrumentation
The AD7766-2BRUZ is ideal for medical instrumentation such as patient monitors and diagnostic devices. Its 24-bit resolution and 115.5 dB dynamic range enable accurate measurement of biopotential signals like ECG and EEG. The low power consumption (8.5 mW) is critical for battery-powered portable devices. The oversampled SAR architecture provides low latency, which is important for real-time monitoring. The device's small 16-lead TSSOP package allows compact PCB designs, essential for wearable medical devices.
Recommended
High-Precision Data Acquisition
The AD7766-2BRUZ excels in high-precision data acquisition systems, offering 24-bit resolution and 115.5 dB dynamic range. Its 32 kSPS sampling rate is suitable for a wide range of sensors, from strain gauges to thermocouples. The low power consumption makes it suitable for multi-channel systems where power dissipation is a concern. The SPI interface allows easy daisy-chaining of multiple ADCs for synchronized sampling. The device's high accuracy ensures reliable data for scientific and industrial measurements.
Recommended
Portable Instrumentation
The AD7766-2BRUZ is well-suited for portable instrumentation due to its low power consumption of 8.5 mW and compact 16-lead TSSOP package. It operates from a 2.5 V supply, making it compatible with battery-powered systems. The high dynamic range (115.5 dB) ensures accurate measurements in field applications. The SPI interface allows connection to low-power microcontrollers, enabling long battery life. The device's performance makes it ideal for handheld multimeters, data loggers, and portable analyzers.
Recommended
Audio Test Equipment
The AD7766-2BRUZ's high dynamic range (115.5 dB) and low distortion make it suitable for audio test equipment such as audio analyzers and distortion meters. Its 32 kSPS sampling rate is sufficient for audio frequency analysis up to 16 kHz. The low power consumption is beneficial for portable test instruments. The oversampled SAR architecture provides low latency, which is important for real-time audio measurements. The device's accuracy ensures reliable characterization of audio components and systems.
Recommended
Recommended Products Summary
Engineering reference data for AD7766-2BRUZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7766-1BRUZ | AD7766BRUZ | ADS1271 |
|---|---|---|---|---|
| Package | 16-lead TSSOP | 16-lead TSSOP | 16-lead TSSOP | 16-lead TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 24 bit | 24 bit | 24 bit | 24 bit |
| Sampling Rate | 32 kSPS | 64 kSPS | 128 kSPS | 105 kSPS |
| Dynamic Range | 115.5 dB | 112.5 dB | 109.5 dB | 109 dB |
| Power Consumption | 8.5 mW | 10.5 mW | 15 mW | 70 mW |
| Supply Voltage | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 5 V |
| Architecture | Oversampled SAR | Oversampled SAR | Oversampled SAR | Delta-sigma |
Key Differentiators
- Lowest power consumption in family (vs AD7766BRUZ)
- Highest dynamic range in family (vs AD7766BRUZ)
- Lower power than cross-brand alternative (vs ADS1271)
Design Notes
The AD7766-2BRUZ operates from a 2.5 V supply (2.375 V to 2.625 V). Use a low-noise LDO regulator, such as the ADP150, to provide a clean supply. Place a 10 Β΅F and 0.1 Β΅F decoupling capacitor close to the VDD pins. The reference input (VREF) should be bypassed with a 10 Β΅F low-ESR capacitor to ensure stable operation and achieve the specified dynamic range.
For optimal performance, use a solid ground plane and separate analog and digital ground areas, connecting them at a single point. Keep the analog input trace short and shielded to minimize noise pickup. Place the ADC close to the sensor or signal source. Use 4-layer PCB with dedicated power and ground planes to reduce impedance and improve noise immunity.
Avoid driving the analog input with a high-impedance source, as this can degrade accuracy. Use a buffer amplifier with low output impedance. Ensure the master clock (MCLK) is clean and free of jitter, as it directly affects conversion accuracy. Do not exceed the absolute maximum ratings for supply voltage and input pins. Properly handle the power-down (PDWN) pin to avoid unintended shutdown.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Halogen-free status not specified in provided data.
