AD7175-8BCPZ-RL7 - 24-Bit Sigma-Delta ADC | Analog Devices
MPN: AD7175-8BCPZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.86 | $13.86 |
| 10 | $12.47 | $124.70 |
| 100 | $11.08 | $1,108.00 |
| 500 | $9.69 | $4,845.00 |
| 1,000 | $8.3 | $8,300.00 |
Drop-in alternatives for AD7175-8BCPZ-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:
AD7175-8BCPZ
✅ Drop-In📋 Reference alternative (not in catalog)
AD7175-8BCPZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
AD7124-8BCPZ
✅ Drop-In✓ In Stock
$7.9545 / Unit
View Datasheet →AD7172-2BRUZ-RL7
✅ Drop-In✓ In Stock
$12.28 / Unit
View Datasheet →AD7176-2BRUZ
✅ Drop-In✓ In Stock
$9.5 / Unit
View Datasheet →AD7175-8BCPZ-RL7 Maximum Ratings & Electrical Characteristics
| Resolution | 24 bit |
| Number of Input Channels | 8 differential or 16 single-ended |
| Sampling Rate | 250 kSPS |
| Input Type | Differential, Single-Ended |
| Data Interface | SPI |
| Architecture | Sigma-Delta |
| 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 | 40-LFCSP-WQ (6x6 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | RoHS3 Compliant |
| REACH Status | Unaffected |
| Reference Type | External |
AD7175-8BCPZ-RL7 Pin Configuration
| Pin 1 | AVDD — Analog power supply |
| Pin 2 | AVSS — Analog ground |
| Pin 3 | AIN0 — Analog input 0 |
| Pin 4 | AIN1 — Analog input 1 |
| Pin 5 | AIN2 — Analog input 2 |
| Pin 6 | AIN3 — Analog input 3 |
| Pin 7 | AIN4 — Analog input 4 |
| Pin 8 | AIN5 — Analog input 5 |
| Pin 9 | AIN6 — Analog input 6 |
| Pin 10 | AIN7 — Analog input 7 |
| Pin 11 | REF+ — Positive reference input |
| Pin 12 | REF- — Negative reference input |
| Pin 13 | DVDD — Digital power supply |
| Pin 14 | DGND — Digital ground |
| Pin 15 | SCLK — Serial clock input |
| Pin 16 | DIN — Serial data input |
| Pin 17 | DOUT — Serial data output |
| Pin 18 | CS — Chip select |
| Pin 19 | SYNC — Synchronization input |
| Pin 20 | RESET — Reset input |
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
AD7175-8BCPZ-RL7 is suitable for 6 applications: Process Control, Industrial Automation, Temperature and Pressure Measurement, Precision Data Acquisition Systems, Weigh Scales, Medical Instrumentation.
Process Control
The AD7175-8's 24-bit resolution and low noise make it ideal for process control loops that require accurate measurement of temperature, pressure, and flow. Its fast settling time of 250 kSPS allows rapid updates, while the integrated buffers simplify sensor interfacing. The device's multiplexed inputs enable monitoring of multiple process variables with a single ADC, reducing system cost and complexity. Its industrial temperature range of -40°C to +105°C ensures reliable operation in harsh plant environments.
Recommended
Industrial Automation
In industrial automation, the AD7175-8 provides high-precision analog-to-digital conversion for monitoring and control systems. Its 16 single-ended inputs allow connection to multiple sensors, while the SPI interface enables easy integration with microcontrollers and PLCs. The device's low noise and high resolution ensure accurate data acquisition, critical for closed-loop control. The wide supply voltage range and industrial temperature rating make it suitable for factory floor applications.
Recommended
Temperature and Pressure Measurement
The AD7175-8 is well-suited for temperature and pressure measurement due to its high resolution and low noise, which are essential for detecting small signal changes. Its 8 differential inputs allow direct connection to bridge sensors, and the integrated buffers provide high input impedance, reducing sensor loading. The device's programmable digital filter enables trade-offs between speed and noise, optimizing performance for specific sensor types. This makes it ideal for precision instrumentation.
Recommended
Precision Data Acquisition Systems
The AD7175-8 is designed for precision data acquisition systems requiring high accuracy and speed. With 24-bit resolution and a 250 kSPS sampling rate, it can capture fast transients while maintaining excellent linearity. The device's multiplexed inputs and SPI interface simplify system design, and its low power consumption makes it suitable for portable instruments. The internal oscillator eliminates the need for an external clock, reducing component count and board space.
Recommended
Weigh Scales
The AD7175-8 is ideal for weigh scale applications due to its high resolution and low noise, which are critical for accurate weight measurement. Its 8 differential inputs can accommodate multiple load cells, and the integrated buffers provide high input impedance, preventing signal degradation. The device's fast settling time allows quick weight readings, and its industrial temperature range ensures reliable operation in various environments. The SPI interface enables easy connection to microcontrollers for display and control.
Recommended
Medical Instrumentation
In medical instrumentation, the AD7175-8 provides high-precision analog-to-digital conversion for patient monitoring and diagnostic equipment. Its low noise and high resolution ensure accurate measurement of physiological signals, while the multiplexed inputs allow monitoring of multiple channels. The device's small LFCSP package is suitable for compact medical devices, and its wide supply voltage range accommodates battery-powered operation. The SPI interface enables seamless integration with digital signal processors.
Recommended
Recommended Products Summary
Engineering reference data for AD7175-8BCPZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7175-8BCPZ | AD7175-8BCPZ-RL | AD7124-8BCPZ | AD7172-2BRUZ-RL7 | AD7176-2BRUZ |
|---|---|---|---|---|---|---|
| Package | 40-LFCSP-WQ (6x6 mm) | 40-LFCSP-WQ (6x6 mm) | 40-LFCSP-WQ (6x6 mm) | 40-LFCSP-WQ (6x6 mm) | 40-LFCSP-WQ (6x6 mm) | 40-LFCSP-WQ (6x6 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
| Number of Inputs | 8 differential / 16 single-ended | 8 differential / 16 single-ended | 8 differential / 16 single-ended | 8 differential / 16 single-ended | 2 differential / 4 single-ended | 2 differential / 4 single-ended |
| Max Sampling Rate | 250 kSPS | 250 kSPS | 250 kSPS | 21.2 kSPS | 250 kSPS | 250 kSPS |
| Supply Voltage (Analog) | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.9 V to 3.6 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Data Interface | SPI | SPI | SPI | SPI | SPI | SPI |
| Operating Temperature | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C |
Key Differentiators
- Higher maximum data rate (vs AD7124-8BCPZ)
- More input channels (vs AD7172-2BRUZ-RL7)
- Wider supply voltage range (vs AD7124-8BCPZ)
Design Notes
Provide adequate decoupling on the AVDD and DVDD pins. Use 10uF and 0.1uF capacitors in parallel, placed as close to the pins as possible. A clean analog ground plane is essential to minimize noise coupling into the ADC.
Route the analog inputs away from digital traces to prevent noise coupling. Use a ground plane under the ADC and keep the reference inputs low-impedance. The SPI lines should be isolated from analog signals to maintain accuracy.
Ensure the reference inputs are driven by a low-impedance source to maintain accuracy. Do not exceed the absolute maximum ratings for supply voltages. The SPI interface should be properly terminated to avoid signal integrity issues.
Compliance Information
RoHS3 compliant and REACH unaffected per PartGenie. MSL 3 (168 hours).
