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
$12.5 / Unit
View Datasheet →AD7176-2BRUZ
✅ Drop-In✓ In Stock
$9.5 / Unit
View Datasheet →AD7172-2BRUZ-RL7
✅ Drop-In✓ In Stock
$6.89 / Unit
View Datasheet →AD7177-2BRUZ
✅ Drop-In✓ In Stock
$38.1818 / Unit
View Datasheet →ADS127L01
✅ Drop-In📋 Reference alternative (not in catalog)
AD7175-2BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 bit |
| Sampling Rate | 250 kSPS |
| Number of Channels | 2 or 4 (fully/pseudo differential) |
| Input Type | Differential, Pseudo-Differential |
| Interface Type | SPI |
| Architecture | Sigma-Delta |
| Reference Type | External, Internal |
| 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 Style | SMD/SMT |
| Settling Time | 20 µs |
| SNR - Signal to Noise Ratio | [DATA_NEEDED: SNR value] |
| RoHS | 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 | SCLK — Serial clock input |
| Pin 10 | DIN — Serial data input |
| Pin 11 | DOUT — Serial data output |
| Pin 12 | CS — Chip select |
| Pin 13 | SYNC — Synchronization input |
| Pin 14 | IOVDD — Digital power supply |
| Pin 15 | DGND — Digital ground |
| Pin 16 | RESET — Reset input |
| Pin 17 | GPIO0 — General purpose I/O |
| Pin 18 | GPIO1 — General purpose I/O |
| Pin 19 | GPIO2 — General purpose I/O |
| Pin 20 | GPIO3 — General purpose I/O |
| Pin 21 | AVDD — Analog power supply |
| Pin 22 | AIN4 — Analog input 4 |
| Pin 23 | AIN5 — Analog input 5 |
| Pin 24 | AIN6 — Analog input 6 |
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 temperature, pressure, and flow. Its 24-bit resolution and 250 kSPS output data rate enable accurate monitoring of multiple channels with minimal latency. The true rail-to-rail buffers simplify interfacing to sensors, and the programmable digital filter allows optimization for noise vs. speed. In a typical 4-20 mA loop, the ADC can digitize the loop current with high precision, ensuring reliable control. The device's fast settling time (20 µs) supports rapid channel scanning in multiplexed systems, improving overall system throughput.
Recommended
Weigh Scales
The AD7175-2BRUZ is well-suited for weigh scale applications due to its high resolution (24-bit) and low noise performance. It can accurately digitize the small voltage changes from load cells, providing precise weight measurements. The device's fast settling time allows for quick measurements, which is beneficial in industrial weighing systems that require high throughput. The internal 2.5 V reference simplifies the design, and the true rail-to-rail buffers allow direct connection to the load cell bridge. The programmable filter can be set to reject 50 Hz/60 Hz power line interference, ensuring stable readings in noisy environments.
Recommended
Temperature Measurement
The AD7175-2BRUZ is excellent for temperature measurement applications, such as thermocouple and RTD sensing. Its 24-bit resolution allows detection of very small temperature changes, and the fast settling time enables rapid updates. The device supports both ratiometric and absolute measurements, and the internal reference can be used for simplified designs. The true rail-to-rail buffers allow direct connection to thermocouples without additional signal conditioning. The programmable gain amplifier (PGA) can be configured to amplify small signals, improving resolution. The device's low noise performance ensures accurate temperature readings even in noisy industrial environments.
Recommended
Medical Instrumentation
The AD7175-2BRUZ is suitable for medical instrumentation, such as patient monitoring and diagnostic equipment, where high precision and low noise are critical. Its 24-bit resolution and fast settling time enable accurate measurement of physiological signals, such as ECG and EEG. The device's low power consumption is beneficial for portable devices. The true rail-to-rail buffers simplify interfacing to electrodes, and the programmable filter can be used to remove interference. The SPI interface allows easy integration with microcontrollers. The device's wide operating temperature range (-40°C to +105°C) ensures reliable operation in various medical environments.
Recommended
Data Acquisition Systems
The AD7175-2BRUZ is a key component in high-resolution data acquisition systems, providing fast and accurate conversion of analog signals. Its 250 kSPS output data rate and 20 µs settling time make it ideal for multiplexed systems that need to sample multiple channels quickly. The device's true rail-to-rail buffers allow direct connection to sensors, and the programmable digital filter can be optimized for noise or speed. The SPI interface supports daisy-chaining for multi-device systems. The device's low noise performance ensures high signal integrity, making it suitable for precision measurement applications.
Recommended
Industrial Automation
The AD7175-2BRUZ is designed for industrial automation applications, such as PLCs and process controllers, where reliable and accurate analog-to-digital conversion is essential. Its 24-bit resolution and fast settling time enable precise monitoring of sensors and actuators. The device's robust design includes a 50 Hz/60 Hz rejection mode for power line noise suppression, ensuring stable operation in industrial environments. The true rail-to-rail buffers simplify interfacing to a wide range of sensors. The SPI interface allows easy integration with industrial microcontrollers. The device's wide operating temperature range and RoHS compliance make it suitable for harsh industrial conditions.
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 | AD7177-2BRUZ | 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 | 32 bit | 24 bit |
| Max Sampling Rate | 250 kSPS | 250 kSPS | 250 kSPS | 250 kSPS | 250 kSPS | 250 kSPS |
| Settling Time | 20 µs | 20 µs | 20 µs | 20 µs | 20 µs | 20 µs |
| Input Type | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential, Pseudo-Differential | Differential |
| 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 | 2.5 V to 5.25 V | 2.5 V to 5.5 V |
| Interface | SPI | SPI | SPI | SPI | SPI | SPI |
Key Differentiators
- Fast settling time of 20 µs (vs AD7124-4BRUZ)
- Higher maximum output data rate of 250 kSPS (vs AD7172-2BRUZ)
- True rail-to-rail input buffers (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.
Place the reference decoupling capacitor (10 µF) close to the REF+ and REF- pins. For best noise performance, use a low-noise external reference if the internal reference is not sufficient. Keep the SPI lines short and shielded to avoid digital noise coupling into the analog inputs.
Ensure the input signals are within the common-mode range of the ADC. The true rail-to-rail buffers allow inputs from 0 V to AVDD, but avoid exceeding these limits. Also, configure the digital filter correctly to reject 50 Hz/60 Hz interference. Use the SYNC pin to synchronize multiple ADCs if needed.
Compliance Information
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for this industrial ADC.
