Overview
The AD7124-8BCPZ-RL7, produced by Analog Devices Inc., is a highly integrated, low power, and low noise 24-bit Sigma-Delta analog-to-digital converter (ADC). This device is designed for high precision measurement applications and features a comprehensive set of integrated functionalities. It includes a low noise ADC, a programmable gain amplifier (PGA), and a precision internal reference, making it suitable for a wide range of applications, including automotive and industrial environments. The AD7124-8 is AEC-Q100 qualified for automotive use and operates over a temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 differential or 15 single-ended/pseudo differential |
| Resolution | 24-bit |
| Analog Power Supply | 2.7 V to 3.6 V or dual 1.8 V |
| Digital Power Supply | 1.65 V to 3.6 V |
| Temperature Range | −40°C to +125°C |
| Package Type | 32-Lead LFCSP (5mm x 5mm x 0.75mm) |
| Power Modes | Low, Mid, Full Power |
| RMS Noise (Low Power Mode) | 24 nV rms at 1.17 SPS, gain = 128 |
| Output Data Rate | Up to 19.2 kSPS |
| Internal Reference Accuracy | ±0.2% at 25°C |
Key Features
- Low noise and low power consumption, with three integrated power modes to tailor current consumption and output data rates.
- Programmable gain amplifier (PGA) and precision internal reference.
- Integrated channel sequencer allowing simultaneous conversion of multiple channels.
- Extensive diagnostic functionality including cyclic redundancy check (CRC), signal chain checks, and serial interface checks.
- Support for both internal and external clock operation.
- Programmable low drift excitation current sources, burnout currents, and a bias voltage generator.
- Low-side power switch to power down bridge sensors between conversions, minimizing power consumption.
Applications
The AD7124-8 is designed for various high precision measurement applications, including industrial process control, medical devices, and automotive systems. It is particularly useful in environments where low noise, low power consumption, and high accuracy are critical. The device's AEC-Q100 qualification makes it suitable for automotive applications. Additionally, the EVAL-AD7124-8SDZ evaluation kit is available to help users evaluate the device's features and performance.
Q & A
- What is the resolution of the AD7124-8 ADC?
The AD7124-8 has a 24-bit resolution. - How many channels does the AD7124-8 support?
The device supports 8 differential or 15 single-ended/pseudo differential channels. - What are the power supply options for the AD7124-8?
The device operates with a single analog power supply from 2.7 V to 3.6 V or a dual 1.8 V power supply, and a digital supply from 1.65 V to 3.6 V. - What is the temperature range of the AD7124-8?
The device is specified for a temperature range of −40°C to +125°C. - What package type is the AD7124-8 available in?
The AD7124-8 is housed in a 32-Lead LFCSP package. - Does the AD7124-8 support external clock operation?
Yes, the device allows operation with either an internal or external clock. - What diagnostic features are integrated into the AD7124-8?
The device includes cyclic redundancy check (CRC), signal chain checks, and serial interface checks. - Is the AD7124-8 suitable for automotive applications?
Yes, the W grade of the AD7124-8 is AEC-Q100 qualified for automotive use. - How does the AD7124-8 manage power consumption?
The device features low power modes and a low-side power switch to power down bridge sensors between conversions, minimizing power consumption. - What evaluation kit is available for the AD7124-8?
The EVAL-AD7124-8SDZ evaluation kit is available to evaluate the device's features and performance.
