AD7176-2BRUZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
MPN: AD7176-2BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.43 | $13.43 |
| 10 | $12.5 | $125.00 |
| 100 | $11.2 | $1,120.00 |
| 500 | $10.1 | $5,050.00 |
| 1,000 | $9.5 | $9,500.00 |
Drop-in alternatives for AD7176-2BRUZ — 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:
AD7175-2BRUZ-RL7
✓ In Stock
$13 / Unit
View Datasheet →AD7177-2BRUZ
✓ In Stock
$20 / Unit
View Datasheet →AD7172-2BRUZ-RL7
✓ In Stock
$12.28 / Unit
View Datasheet →ADS127L01
📋 Reference alternative (not in catalog)
ADS1278
📋 Reference alternative (not in catalog)
AD7176-2BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 Bit |
| Sampling Rate | 250 kSPS |
| Number of Input Channels | 2 Differential or 4 Pseudo-Differential |
| Input Type | Differential / Pseudo-Differential |
| Data Interface | SPI, QSPI |
| Architecture | Sigma-Delta |
| Reference Type | Internal, External |
| Internal Reference Voltage | 2.5 V |
| Reference Drift | 2 ppm/°C |
| Settling Time | 20 µs |
| INL (Integral Nonlinearity) | ±2 ppm of FSR typical |
| Analog Supply Voltage | 2.5 V to 5.5 V |
| Digital Supply Voltage | 2.3 V to 5.5 V |
| Operating Temperature Range | -40°C to +105°C |
| Package | 24-Lead TSSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD7176-2BRUZ Pin Configuration
| Pin 1 | AVDD — Analog power supply |
| Pin 2 | AIN0 — Analog input 0 |
| Pin 3 | AIN1 — Analog input 1 |
| Pin 4 | AIN2 — Analog input 2 |
| Pin 5 | AIN3 — Analog input 3 |
| Pin 6 | REF+ — Positive reference input |
| Pin 7 | REF- — Negative reference input |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | DVDD — Digital power supply |
| Pin 10 | DGND — Digital ground |
| Pin 11 | SCLK — Serial clock input |
| Pin 12 | DIN — Serial data input |
| Pin 13 | DOUT — Serial data output |
| Pin 14 | CS — Chip select |
| Pin 15 | SYNC — Synchronization input |
| Pin 16 | GPIO — General purpose I/O |
| Pin 17 | XIN — Crystal oscillator input |
| Pin 18 | XOUT — Crystal oscillator output |
| Pin 19 | PDWN — Power down input |
| Pin 20 | RESET — Reset input |
| Pin 21 | AIN4 — Analog input 4 |
| Pin 22 | AIN5 — Analog input 5 |
| Pin 23 | AIN6 — Analog input 6 |
| Pin 24 | AIN7 — Analog input 7 |
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
AD7176-2BRUZ is suitable for 6 applications: Process Control, Industrial Automation, Weigh Scales, Temperature and Pressure Measurement, Medical Instrumentation, Data Acquisition Systems.
Process Control
The AD7176-2BRUZ is ideal for process control systems requiring high-resolution, fast-settling measurements of multiple sensors. Its 24-bit resolution and 20 µs settling time enable rapid scanning of temperature, pressure, and flow transmitters. The crosspoint multiplexer allows direct connection of up to 4 pseudo-differential inputs, simplifying PCB layout and reducing component count. The internal 2.5 V reference with 2 ppm/°C drift ensures stable measurements over temperature, critical for industrial environments. The device's SPI interface integrates easily with microcontrollers, and its 50 Hz/60 Hz rejection mode helps suppress power-line noise in industrial settings.
Recommended
Industrial Automation
In industrial automation, the AD7176-2BRUZ provides precise analog-to-digital conversion for monitoring and control loops. Its fast settling time (20 µs) allows high-speed multiplexing of multiple channels, essential for real-time control. The device's low INL (±2 ppm of FSR) ensures accurate representation of sensor signals, improving system reliability. The wide analog supply range (2.5 V to 5.5 V) accommodates various power rails, and the digital interface supply (2.3 V to 5.5 V) simplifies logic-level interfacing. The burnout current source aids in detecting sensor faults, enhancing system diagnostics. The AD7176-2BRUZ is suitable for PLCs, motor drives, and robotic systems.
Recommended
Weigh Scales
The AD7176-2BRUZ is well-suited for weigh scale applications due to its high resolution (24-bit) and low noise performance. It can directly interface with load cells, providing accurate weight measurements. The fast settling time enables quick stabilization after load changes, improving throughput in industrial weighing. The internal reference reduces external component count, and the crosspoint multiplexer allows multiple load cells to be measured with a single ADC. The device's programmable digital filter can be optimized for noise vs. speed trade-offs, making it flexible for various scale designs. Its SPI interface simplifies connection to microcontrollers for display and communication.
Recommended
Temperature and Pressure Measurement
The AD7176-2BRUZ excels in temperature and pressure measurement applications, offering 24-bit resolution and low drift. It can interface with thermocouples, RTDs, and pressure sensors, providing accurate readings over a wide temperature range. The internal 2.5 V reference with 2 ppm/°C drift ensures stable measurements, while the 20 µs settling time allows fast scanning of multiple sensors. The device's 50 Hz/60 Hz rejection mode helps eliminate power-line interference, common in industrial environments. The crosspoint multiplexer simplifies wiring for multi-sensor systems, and the SPI interface enables easy data transfer to a host processor.
Recommended
Medical Instrumentation
In medical instrumentation, the AD7176-2BRUZ provides high-precision data conversion for patient monitoring and diagnostic equipment. Its 24-bit resolution and low noise are essential for accurate measurement of physiological signals such as ECG, EEG, and blood pressure. The fast settling time enables real-time monitoring of multiple channels, while the low drift ensures long-term stability. The device's small TSSOP package is suitable for compact medical devices. The SPI interface allows integration with digital signal processors for signal processing. The AD7176-2BRUZ meets the stringent accuracy requirements of medical applications, making it a reliable choice for designers.
Recommended
Data Acquisition Systems
The AD7176-2BRUZ is a key component in data acquisition systems, offering high-speed, high-resolution conversion for laboratory and test equipment. Its 250 kSPS output data rate and 20 µs settling time enable fast, accurate sampling of multiple channels. The crosspoint multiplexer allows flexible input routing, and the internal reference simplifies design. The device's low INL and low noise ensure high measurement accuracy, critical for scientific instruments. The SPI/QSPI interface supports high-speed data transfer to a host computer. The AD7176-2BRUZ is ideal for applications such as vibration analysis, power monitoring, and automated test equipment.
Recommended
Recommended Products Summary
Engineering reference data for AD7176-2BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7175-2BRUZ | AD7177-2BRUZ | AD7172-2BRUZ | ADS127L01 |
|---|---|---|---|---|---|
| Package | 24-Lead TSSOP | 24-Lead TSSOP | 24-Lead TSSOP | 24-Lead TSSOP | 24-Lead TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 24 Bit | 24 Bit | 32 Bit | 24 Bit | 24 Bit |
| Max Data Rate | 250 kSPS | 250 kSPS | 10 kSPS | 31.25 kSPS | 400 kSPS |
| Settling Time | 20 µs | 4 µs | 20 µs | 20 µs | 10 µs |
| INL | ±2 ppm of FSR | ±2 ppm of FSR | ±2 ppm of FSR | ±2 ppm of FSR | ±2 ppm of FSR |
| Internal Reference | 2.5 V, 2 ppm/°C | 2.5 V, 2 ppm/°C | 2.5 V, 2 ppm/°C | 2.5 V, 2 ppm/°C | External only |
| Input Channels | 2 Differential / 4 Pseudo-Differential | 2 Differential / 4 Pseudo-Differential | 2 Differential / 4 Pseudo-Differential | 2 Differential / 4 Pseudo-Differential | 1 Differential |
Key Differentiators
- Fast settling time of 20 µs (vs AD7175-2BRUZ)
- Higher maximum data rate of 250 kSPS (vs AD7172-2BRUZ)
- Integrated 2.5 V reference with 2 ppm/°C drift (vs ADS127L01)
Design Notes
Decouple AVDD and DVDD with 10 µF and 0.1 µF capacitors placed close to the pins. Use separate analog and digital ground planes to minimize noise coupling. The AD7176-2BRUZ operates from 2.5 V to 5.5 V analog supply and 2.3 V to 5.5 V digital supply; ensure stable supplies to maintain ADC accuracy.
For best performance, keep analog input traces short and shielded, and avoid routing digital signals near the analog inputs. Use a solid ground plane under the ADC. If using the internal reference, bypass the REF+ pin with a 10 µF capacitor to ground. For external reference, ensure low impedance and adequate decoupling.
Do not exceed the absolute maximum ratings for supply voltages. Ensure the reference input is properly bypassed to avoid noise. The crosspoint multiplexer allows flexible input routing, but be aware of settling time when switching channels. Use the 50 Hz/60 Hz rejection mode to suppress power-line interference in industrial environments.
Compliance Information
RoHS compliant per distributor listings. AEC-Q100 not applicable for this industrial ADC.
