AD7175-2BRUZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
MPN: AD7175-2BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $16.04 | $16.04 |
| 10 | $14.44 | $144.40 |
| 100 | $12.83 | $1,283.00 |
| 500 | $11.23 | $5,615.00 |
| 1,000 | $9.62 | $9,620.00 |
Drop-in alternatives for AD7175-2BRUZ — 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
✅ Drop-In✓ In Stock
$13.1 / Unit
View Datasheet →AD7176-2BRUZ
✅ Drop-In✓ In Stock
$9.5 / Unit
View Datasheet →AD7172-2BRUZ
✅ Drop-In✓ In Stock
$8.64 / Unit
View Datasheet →AD7124-4BRUZ
✅ Drop-In✓ In Stock
$7.9545 / Unit
View Datasheet →ADS127L01
✅ Drop-In📋 Reference alternative (not in catalog)
AD7175-2BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 bit |
| Number of Channels | 2, 4 Input |
| Input Type | Fully/Pseudo Differential |
| Data Interface | SPI |
| Sampling Rate | 250 kSPS |
| Settling Time | 20 µs |
| Supply Voltage - Analog | 2.5 V to 5.25 V |
| Supply Voltage - Digital | 2 V to 5.5 V |
| Operating Temperature Range | -40°C to +105°C |
| Package | 24-TSSOP |
| Mounting Type | Surface Mount |
| Internal Reference | 2.5 V, low noise, low drift |
| Digital Filter | sinc3, sinc4, sinc5, FIR |
| 50 Hz/60 Hz Rejection | Yes |
| CRC Error Check | Yes |
| RoHS Status | Compliant |
AD7175-2BRUZ 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 | GND — Ground |
| Pin 9 | IOVDD — Digital I/O 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 | GND — Ground |
| Pin 16 | AVDD — Analog power supply |
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
AD7175-2BRUZ is suitable for 6 applications: Process Control, Weigh Scales, Temperature Measurement, Medical Instrumentation, Data Acquisition Systems, Industrial Automation.
Process Control
The AD7175-2BRUZ is ideal for process control systems that require high-resolution, fast-settling measurements of multiple sensors. Its 24-bit resolution and 250 kSPS output data rate enable accurate monitoring of temperature, pressure, and flow in industrial automation. The 20 µs settling time allows rapid channel scanning, making it suitable for multiplexed inputs. The internal 2.5 V reference and true rail-to-rail buffers simplify sensor interfacing, while the 50 Hz/60 Hz rejection mode suppresses power line noise. With a wide operating temperature range of -40°C to +105°C, it operates reliably in harsh industrial environments.
Recommended
Weigh Scales
The AD7175-2BRUZ excels in weigh scale applications due to its high resolution and fast settling time. The 24-bit sigma-delta ADC provides the precision needed for accurate weight measurement, while the 20 µs settling enables fast updates for dynamic weighing. The true rail-to-rail input buffers allow direct connection to load cells without additional signal conditioning. The internal reference reduces external component count, and the programmable digital filter can be optimized for noise performance. The device's low noise and high linearity ensure consistent, repeatable measurements in industrial and commercial scales.
Recommended
Temperature Measurement
For temperature measurement, the AD7175-2BRUZ provides high-resolution conversion of thermocouple and RTD signals. Its 24-bit resolution and low noise ensure accurate temperature readings, while the fast settling time allows rapid scanning of multiple temperature sensors. The device supports external references for ratiometric measurements, improving accuracy. The 50 Hz/60 Hz rejection mode is particularly useful in industrial environments with power line interference. The wide operating temperature range and robust design make it suitable for both laboratory and field applications.
Recommended
Medical Instrumentation
The AD7175-2BRUZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its high resolution and low noise are critical for accurate biopotential measurements, while the fast settling time enables real-time data acquisition. The device's small 24-TSSOP package saves board space in compact medical devices. The SPI interface allows easy integration with microcontrollers, and the CRC error check ensures data integrity. The wide supply voltage range accommodates various power architectures, and the -40°C to +105°C temperature range covers clinical environments.
Recommended
Data Acquisition Systems
In high-resolution data acquisition systems, the AD7175-2BRUZ offers the speed and precision needed for capturing fast-changing signals. Its 250 kSPS output data rate and 20 µs settling time allow multiplexing of multiple channels without sacrificing accuracy. The programmable digital filter lets designers trade off noise and speed. The device's true rail-to-rail buffers simplify interfacing to sensors, and the internal reference reduces external components. The SPI interface supports daisy-chaining for multi-device systems, making it ideal for scalable DAQ platforms.
Recommended
Industrial Automation
The AD7175-2BRUZ is a key component in industrial automation for precise measurement and control. Its fast settling time and high resolution enable accurate monitoring of process variables such as pressure, level, and flow. The device's robust design operates reliably in harsh environments with wide temperature ranges. The 50 Hz/60 Hz rejection mode minimizes interference from power lines, and the burnout current source aids sensor diagnostics. The SPI interface allows easy integration with PLCs and industrial controllers, making it a versatile choice for factory automation.
Recommended
Recommended Products Summary
Engineering reference data for AD7175-2BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7175-2BRUZ-RL7 | AD7176-2BRUZ | AD7172-2BRUZ | AD7124-4BRUZ | ADS127L01 |
|---|---|---|---|---|---|---|
| Package | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
| Max Sampling Rate | 250 kSPS | 250 kSPS | 250 kSPS | 250 kSPS | 19.2 kSPS | 400 kSPS |
| Settling Time | 20 µs | 20 µs | 20 µs | 20 µs | 52 µs | 10 µs |
| Input Type | Fully/Pseudo Differential | Fully/Pseudo Differential | Fully/Pseudo Differential | Fully/Pseudo Differential | Fully/Pseudo Differential | Differential |
| Internal Reference | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | No |
| Supply Voltage (Analog) | 2.5 V to 5.25 V | 2.5 V to 5.25 V | 2.5 V to 5.25 V | 2.5 V to 5.25 V | 2.9 V to 3.6 V | 1.8 V to 3.3 V |
Key Differentiators
- Fast settling time of 20 µs (vs AD7124-4BRUZ)
- Higher maximum output data rate (vs AD7172-2BRUZ)
- Internal 2.5 V reference (vs ADS127L01)
Design Notes
Decouple the AVDD and IOVDD supplies with 10 µF and 0.1 µF capacitors placed close to the pins. Use a low-impedance ground plane to minimize noise. The analog and digital supplies should be separated to prevent digital switching noise from coupling into the analog circuitry.
For optimal noise performance, use a solid ground plane under the ADC and keep the analog input traces short and shielded. Bypass the reference input with a 10 µF capacitor to ground. Avoid routing digital signals near the analog inputs to prevent crosstalk.
Ensure the reference voltage is stable and low-noise. If using the internal reference, place a 10 µF decoupling capacitor on the REFOUT pin. For external reference, use a precision reference like the ADR4525. Also, configure the digital filter correctly to achieve the desired settling time and noise performance.
Compliance Information
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for this industrial ADC.
