AD7177-2BRUZ-RL7 - 32-Bit Sigma-Delta ADC | Analog Devices
MPN: AD7177-2BRUZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $26.25 | $26.25 |
| 10 | $24.5 | $245.00 |
| 100 | $22.75 | $2,275.00 |
| 500 | $21 | $10,500.00 |
| 1,000 | $19.25 | $19,250.00 |
Drop-in alternatives for AD7177-2BRUZ-RL7 — 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:
AD7176-2BRUZ
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View Datasheet →AD7175-2BRUZ-RL7
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View Datasheet →AD7172-2BRUZ-RL7
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View Datasheet →AD7124-4BRUZ-RL
✅ Drop-In✓ In Stock
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View Datasheet →AD7190BRUZ
✅ Drop-In✓ In Stock
$7.6364 / Unit
View Datasheet →AD7177-2BRUZ-RL7 Maximum Ratings & Electrical Characteristics
| Resolution | 32 Bit |
| Number of Channels | 2, 4 Input |
| Sampling Rate | 10 kSPS |
| Input Type | Differential, Pseudo-Differential |
| Data Interface | SPI |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ +105°C |
| Package / Case | 24-TSSOP |
| Supplier Device Package | 24-TSSOP |
| Mounting Type | Surface Mount |
| Number of Terminals | 24 |
| Terminal Form | Gull Wing |
| Package Code | TSSOP |
| Temperature Grade | Industrial |
| RoHS Status | Compliant |
AD7177-2BRUZ-RL7 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 | GND — Ground |
| Pin 9 | DVDD — Digital power supply |
| Pin 10 | SCLK — Serial clock input |
| Pin 11 | DIN — Serial data input |
| Pin 12 | DOUT — Serial data output |
| Pin 13 | CS — Chip select |
| Pin 14 | SYNC — Synchronization input |
| Pin 15 | RESET — Reset input |
| Pin 16 | GPIO0 — General purpose I/O |
| Pin 17 | GPIO1 — General purpose I/O |
| Pin 18 | GPIO2 — General purpose I/O |
| Pin 19 | GPIO3 — General purpose I/O |
| Pin 20 | AVDD — Analog power supply |
| 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
AD7177-2BRUZ-RL7 is suitable for 6 applications: Process Control, Medical Instrumentation, Weigh Scale, Data Acquisition Systems, Industrial Automation, Test and Measurement.
Process Control
The AD7177-2BRUZ-RL7 is ideal for process control applications due to its high resolution and fast settling time. It can accurately measure analog signals from sensors such as temperature, pressure, and flow transmitters. The 10 kSPS scan rate allows multiplexing multiple channels, enabling efficient monitoring of several process variables. Its 85 dB filter rejection of 50/60 Hz ensures accurate readings in industrial environments with power line noise. The device's SPI interface simplifies integration with microcontrollers in control loops.
Recommended
Medical Instrumentation
In medical instrumentation, the AD7177-2BRUZ-RL7 provides the high resolution and low noise required for accurate measurement of physiological signals. Its 32-bit resolution ensures precise digitization of small-amplitude signals such as ECG, EEG, and blood pressure. The fast settling time enables rapid channel scanning in multi-parameter patient monitors. The device's low power consumption and small TSSOP package make it suitable for portable medical devices. The integrated buffers simplify interfacing with high-impedance sensors.
Recommended
Weigh Scale
The AD7177-2BRUZ-RL7 is well-suited for weigh scale applications due to its high resolution and low noise. It can accurately digitize the output of load cells, which produce small differential voltages. The 32-bit resolution provides excellent sensitivity, allowing detection of minute weight changes. The device's fast settling time enables quick measurements, which is important in industrial weighing systems. The integrated PGA and buffers simplify the signal chain, reducing external component count.
Recommended
Data Acquisition Systems
The AD7177-2BRUZ-RL7 is a key component in data acquisition systems, offering high resolution and fast channel scanning. It can multiplex multiple analog inputs and digitize them with 32-bit precision. The device's SPI interface allows easy connection to microcontrollers or FPGAs. Its low noise performance ensures accurate data capture in scientific and industrial applications. The 10 kSPS scan rate is sufficient for many real-time monitoring applications.
Recommended
Industrial Automation
In industrial automation, the AD7177-2BRUZ-RL7 provides precise analog-to-digital conversion for control systems. Its high resolution and fast settling time enable accurate monitoring of sensors and actuators. The device's robust design operates over the industrial temperature range and rejects power line noise, making it suitable for factory environments. The SPI interface allows integration with PLCs and industrial controllers. The multiplexed inputs reduce the number of ADCs needed in multi-channel systems.
Recommended
Test and Measurement
The AD7177-2BRUZ-RL7 is used in test and measurement equipment such as digital multimeters and data loggers. Its 32-bit resolution provides high accuracy for measuring small voltages and currents. The fast settling time allows quick measurements, improving throughput. The device's low noise performance ensures reliable readings in sensitive measurements. The SPI interface enables easy integration with microprocessors for data processing and display.
Recommended
Recommended Products Summary
Engineering reference data for AD7177-2BRUZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7176-2BRUZ | AD7175-2BRUZ-RL7 | AD7172-2BRUZ-RL7 | AD7124-4BRUZ-RL | AD7190BRUZ |
|---|---|---|---|---|---|---|
| Resolution | 32 Bit | 24 Bit | 24 Bit | 24 Bit | 24 Bit | 24 Bit |
| Sampling Rate | 10 kSPS | 10 kSPS | 10 kSPS | 10 kSPS | 19.2 kSPS | 4.8 kSPS |
| Number of Channels | 2, 4 Input | 2, 4 Input | 2, 4 Input | 2, 4 Input | 4, 8 Input | 2, 4 Input |
| Package | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Type | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential |
| Data Interface | SPI | SPI | SPI | SPI | SPI | SPI |
| Voltage - Supply, Analog | 2.5V ~ 5.5V | 2.5V ~ 5.5V | 2.5V ~ 5.5V | 2.5V ~ 5.5V | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
Key Differentiators
- 32-bit resolution (vs AD7176-2BRUZ)
- Fast settling time (vs AD7190BRUZ)
- Integrated buffers (vs AD7124-4BRUZ-RL)
Design Notes
Provide clean power supplies for AVDD and DVDD. Use low-dropout regulators (LDOs) to generate the analog supply, and decouple each supply pin with 10 µF and 0.1 µF capacitors placed close to the pins. A ferrite bead in series with the supply can help filter high-frequency noise.
Use a solid ground plane and separate analog and digital ground planes if possible, connecting them at a single point. Place the ADC close to the signal source to minimize trace length. Route analog inputs away from digital traces to reduce coupling. Ensure the reference inputs are driven by a low-impedance source and decoupled with 10 µF and 0.1 µF capacitors.
Avoid exceeding the absolute maximum ratings for supply voltages and input pins. Ensure the reference voltage is stable and within the specified range. Do not leave unused analog inputs floating; tie them to a common-mode voltage or ground. Properly configure the digital filter to achieve the desired settling time and noise performance.
Compliance Information
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated for this part.
