AD7177-2BRUZ-RL7 - 32-Bit Sigma-Delta ADC | Analog Devices
MPN: AD7177-2BRUZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $65.4545 | $65.45 |
| 10 | $47.2727 | $472.73 |
| 100 | $41.8182 | $4,181.82 |
| 500 | $40 | $20,000.00 |
| 1,000 | $38.1818 | $38,181.80 |
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:
AD7177-2BRUZ
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View Datasheet →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 →AD7177-2BRUZ-RL7 Maximum Ratings & Electrical Characteristics
| Resolution | 32 Bit |
| Number of Channels | 2, 4 Input |
| Input Type | Differential, Pseudo-Differential |
| Data Interface | SPI |
| Sampling Rate (Per Second) | 10 kSPS |
| Output Data Rate Range | 5 SPS to 10 kSPS |
| Settling Time | 100 µs (fully settled) |
| Filter Rejection | 85 dB at 50 Hz and 60 Hz |
| Settling Time for 50/60 Hz Rejection | 50 ms |
| Reference Type | External, Differential |
| Voltage - Supply, Analog | [DATA_NEEDED: Analog supply voltage range] |
| Voltage - Supply, Digital | [DATA_NEEDED: Digital supply voltage range] |
| Operating Temperature Range | Industrial (-40°C to +105°C) |
| Package / Case | 24-TSSOP |
| Mounting Type | Surface Mount |
| Number of Terminals | 24 |
| Terminal Form | Gull Wing |
| Package Code | TSSOP |
| 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, Industrial Automation, Medical Instrumentation, Precision Measurement Systems, Data Acquisition Systems, Weigh Scales.
Process Control
The AD7177-2BRUZ-RL7 is ideal for process control systems requiring high-resolution, low-noise measurement of analog signals. Its 32-bit resolution and 10 kSPS sampling rate enable precise monitoring of temperature, pressure, and flow. The 85 dB filter rejection at 50/60 Hz ensures accurate readings in industrial environments with power line noise. The fast settling time of 100 µs allows rapid channel scanning in multiplexed systems, improving overall system throughput. The SPI interface simplifies integration with microcontrollers, and the industrial temperature range ensures reliable operation in harsh conditions.
Recommended
Industrial Automation
In industrial automation, the AD7177-2BRUZ-RL7 provides high-accuracy analog-to-digital conversion for sensors and transducers. Its 32-bit resolution ensures precise measurement of strain, vibration, and position. The device's fast settling time supports high-speed data acquisition in real-time control loops. The integrated buffers and PGA simplify signal conditioning, reducing external component count. The 85 dB filter rejection at 50/60 Hz minimizes interference from power lines, ensuring reliable operation in factory environments. The SPI interface allows easy connection to PLCs and industrial controllers.
Recommended
Medical Instrumentation
The AD7177-2BRUZ-RL7 is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its 32-bit resolution provides high dynamic range for capturing small biological signals. The low noise performance ensures accurate measurement of ECG, EEG, and other vital signs. The fast settling time enables multiplexed acquisition of multiple channels, reducing system complexity. The industrial temperature range and RoHS compliance make it suitable for medical devices. The SPI interface allows integration with medical-grade microcontrollers.
Recommended
Precision Measurement Systems
The AD7177-2BRUZ-RL7 excels in precision measurement systems such as weigh scales, strain gauge bridges, and temperature measurement. Its 32-bit resolution and low noise enable high-accuracy measurements with excellent linearity. The device's fast settling time supports rapid measurements in production testing. The integrated buffers and PGA simplify the signal chain, reducing external components. The 85 dB filter rejection at 50/60 Hz ensures accurate readings in noisy environments. The SPI interface allows easy data transfer to host processors.
Recommended
Data Acquisition Systems
The AD7177-2BRUZ-RL7 is a key component in data acquisition systems, providing high-resolution conversion of multiple analog channels. Its 2/4-channel input configuration and fast settling time enable efficient multiplexing. The 32-bit resolution ensures high fidelity in capturing sensor data. The device's low noise performance is critical for accurate measurements in research and test equipment. The SPI interface simplifies connection to data acquisition boards. The industrial temperature range allows deployment in various environments.
Recommended
Weigh Scales
The AD7177-2BRUZ-RL7 is ideal for weigh scale applications requiring high-resolution, low-noise conversion of load cell signals. Its 32-bit resolution provides excellent accuracy and stability. The fast settling time enables quick weight readings, improving throughput in industrial scales. The integrated buffers and PGA simplify the interface to load cells. The 85 dB filter rejection at 50/60 Hz ensures accurate readings in environments with electrical noise. The SPI interface allows easy integration with microcontrollers for display and control.
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 | AD7177-2BRUZ | AD7176-2BRUZ | AD7175-2BRUZ-RL7 | AD7172-2BRUZ-RL7 |
|---|---|---|---|---|---|
| Resolution | 32 Bit | 32 Bit | 24 Bit | 24 Bit | 24 Bit |
| Sampling Rate | 10 kSPS | 10 kSPS | 250 kSPS | 250 kSPS | 31.25 kSPS |
| Settling Time | 100 µs | 100 µs | 4 µs | 4 µs | 32 µs |
| Filter Rejection | 85 dB at 50/60 Hz | 85 dB at 50/60 Hz | 85 dB at 50/60 Hz | 85 dB at 50/60 Hz | 85 dB at 50/60 Hz |
| Package | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Channels | 2, 4 Input | 2, 4 Input | 2, 4 Input | 2, 4 Input | 2, 4 Input |
| Data Interface | SPI | SPI | SPI | SPI | SPI |
Key Differentiators
- 32-bit resolution (vs AD7176-2BRUZ)
- Fast settling time (vs AD7172-2BRUZ-RL7)
- Higher sampling rate (vs AD7175-2BRUZ-RL7)
Design Notes
Provide clean, low-noise power supplies for AVDD and DVDD. Use separate analog and digital supply rails with ferrite beads and decoupling capacitors (e.g., 10 µF and 0.1 µF) close to the pins. A low-noise LDO such as the ADP151 is recommended for the analog supply to minimize noise coupling into the ADC.
Place the ADC close to the signal source to minimize trace length and noise pickup. Use a solid ground plane and avoid routing digital signals under the analog input traces. Keep the reference inputs (REF+ and REF-) away from noisy digital lines. Use Kelvin connections for the reference to ensure accuracy.
Ensure the reference voltage is stable and low-noise. Use a precision reference like the ADR445, ADR444, or ADR441. Avoid exceeding the absolute maximum ratings on the analog inputs. Properly terminate the SPI lines to prevent ringing and signal integrity issues. Also, ensure the digital filter settings are configured correctly for the desired output data rate and settling time.
Compliance Information
RoHS compliant per distributor listings. Other compliance data not explicitly provided.
