AD7175-8BCPZ - 24-Bit 250kSPS Sigma-Delta ADC | Analog Devices
MPN: AD7175-8BCPZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $34.7 | $34.70 |
| 10 | $31.5 | $315.00 |
| 100 | $28.2 | $2,820.00 |
| 500 | $25.1 | $12,550.00 |
| 1,000 | $22.8 | $22,800.00 |
Drop-in alternatives for AD7175-8BCPZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD7175-8BCPZ-RL7
β Drop-Inβ In Stock
$8.98 / Unit
View Datasheet βAD7175-8BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 Bit |
| Number of Channels | 8, 16 Input |
| Input Type | Single-Ended, Differential |
| Sampling Rate | 250 kSPS |
| Architecture | Sigma-Delta |
| Reference Type | External, Internal |
| Analog Supply Voltage | 2.5 V to 5.5 V |
| Digital Supply Voltage | 2 V to 5.5 V |
| Interface | SPI |
| Package | 40-LFCSP-WQ (6x6) |
| Operating Temperature Range | -40Β°C to +105Β°C |
| SNR | 85 dB |
| Integral Nonlinearity (INL) | [DATA_NEEDED: INL value] |
| Power Dissipation | [DATA_NEEDED: Power dissipation value] |
| RoHS Status | Compliant |
AD7175-8BCPZ Pin Configuration
| Pin 1 | AVDD β Analog power supply |
| Pin 2 | AIN0 β Analog input 0 |
| Pin 3 | AIN1 β Analog input 1 |
| Pin 4 | AIN2 β Analog input 2 |
| Pin 5 | AIN3 β Analog input 3 |
| Pin 6 | AIN4 β Analog input 4 |
| Pin 7 | AIN5 β Analog input 5 |
| Pin 8 | AIN6 β Analog input 6 |
| Pin 9 | AIN7 β Analog input 7 |
| Pin 10 | AVSS β Analog ground |
| Pin 11 | REF+ β Positive reference input |
| Pin 12 | REF- β Negative reference input |
| Pin 13 | DVDD β Digital power supply |
| Pin 14 | DGND β Digital ground |
| Pin 15 | SCLK β Serial clock input |
| Pin 16 | DIN β Serial data input |
| Pin 17 | DOUT β Serial data output |
| Pin 18 | CS β Chip select (active low) |
| Pin 19 | SYNC β Synchronization input |
| Pin 20 | RESET β Reset input (active low) |
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 is suitable for 6 applications: Process Control (PLC/DCS Analog Input Modules), Weigh Scales and Strain Gauge Measurement, Temperature and Pressure Measurement, Medical Instrumentation, Test and Measurement Equipment, Industrial Automation and Robotics.
Process Control (PLC/DCS Analog Input Modules)
The AD7175-8BCPZ is ideal for PLC/DCS analog input modules due to its 8 differential or 16 single-ended inputs, 24-bit resolution, and fast settling time of 20 Β΅s. It can directly interface with 4-20 mA current loops and voltage sensors, providing high accuracy and channel density. The per-channel configurability allows different sensors to be optimized independently, reducing external signal conditioning. Its SPI interface simplifies isolation and integration with backplane controllers.
Recommended
Weigh Scales and Strain Gauge Measurement
The AD7175-8BCPZ's 24-bit resolution and low noise make it suitable for high-precision weigh scales. It can handle multiple load cells through its multiplexed inputs, with each channel configured for different gains. The fast settling time enables quick measurements, and the internal reference simplifies the design. The device's rail-to-rail buffers allow direct connection to bridge sensors without additional amplifiers, reducing component count and cost.
Recommended
Temperature and Pressure Measurement
For temperature and pressure sensors, the AD7175-8BCPZ provides high accuracy and flexibility. It can interface with thermocouples, RTDs, and pressure transducers, with per-channel gain and filter settings. The 24-bit resolution ensures precise readings, and the fast settling time supports rapid scanning of multiple sensors. The device's low power consumption is beneficial for battery-powered field transmitters.
Recommended
Medical Instrumentation
In medical devices such as patient monitors and diagnostic equipment, the AD7175-8BCPZ offers high precision and low noise, essential for accurate biopotential and sensor measurements. Its multiple channels allow simultaneous monitoring of various physiological signals. The device's small 40-LFCSP package is suitable for compact designs, and its SPI interface enables easy integration with microcontrollers. The wide supply voltage range supports battery operation.
Recommended
Test and Measurement Equipment
The AD7175-8BCPZ is well-suited for data acquisition systems in test and measurement equipment, offering high resolution and fast sampling. It can digitize multiple channels simultaneously, making it ideal for multi-channel data loggers and spectrum analyzers. The device's flexible digital filter allows trade-offs between speed and noise, adapting to different measurement requirements. Its robust industrial temperature range ensures reliable operation in harsh environments.
Recommended
Industrial Automation and Robotics
In industrial automation, the AD7175-8BCPZ provides precise analog-to-digital conversion for sensors monitoring position, force, and flow. Its multiple channels and fast settling time enable real-time control loops. The device's per-channel configuration allows different sensor types to be connected without external muxing. The SPI interface simplifies connection to industrial microcontrollers, and the wide supply range supports 24V industrial buses with proper regulation.
Recommended
Recommended Products Summary
Engineering reference data for AD7175-8BCPZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7175-8BCPZ-RL7 | AD7175-2BRUZ | AD7177-2BRUZ |
|---|---|---|---|---|
| Package | 40-LFCSP-WQ (6x6) | 40-LFCSP-WQ (6x6) - same | 32-LFCSP-WQ (5x5) | 32-LFCSP-WQ (5x5) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 24 Bit | 24 Bit | 24 Bit | 32 Bit |
| Number of Channels | 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 | 10 kSPS |
| SNR | 85 dB | 85 dB | 85 dB | 93 dB |
| Interface | SPI | SPI | SPI | SPI |
| Supply Voltage (Analog) | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
Key Differentiators
- 8 differential or 16 single-ended inputs in a single device (vs AD7175-2BRUZ)
- Fast settling time of 20 Β΅s for fully settled data (vs AD7124-8BCPZ)
- True rail-to-rail input buffers (vs AD7606BSTZ)
Design Notes
Decouple the AVDD and DVDD pins with 10 Β΅F and 0.1 Β΅F capacitors placed as close to the pins as possible. Use separate analog and digital ground planes, connected at a single point near the ADC. This minimizes noise coupling and ensures optimal performance.
For the REF+ and REF- pins, place 10 Β΅F bypass capacitors to ground to filter reference noise. Keep analog input traces short and shielded from digital signals. Use a solid ground plane under the ADC to reduce parasitic inductance.
Avoid exceeding the absolute maximum ratings on the analog inputs. Ensure the input common-mode voltage is within the specified range. For best settling performance, configure the digital filter appropriately for the desired output data rate. Refer to the datasheet for filter settings.
Compliance Information
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated for this part.
