Overview
The AD7124-8BCPZ-RL is a highly integrated, low power, and low noise analog-to-digital converter (ADC) produced by Analog Devices Inc. This 24-bit Sigma-Delta ADC is designed for high precision measurement applications and features an 8-channel configuration with the option for differential or single-ended inputs. The device includes a programmable gain amplifier (PGA) and reference, making it suitable for a wide range of signal processing tasks. It operates with a single analog power supply from 2.7 V to 3.6 V or a dual 1.8 V power supply, and the digital supply ranges from 1.65 V to 3.6 V. The AD7124-8 is housed in a 32-lead LFCSP package and is specified for a temperature range of −40°C to +125°C, making it versatile for various environments.
Key Specifications
| Parameter | Specification |
|---|---|
| Converter Type | Sigma-Delta ADC |
| Resolution | 24-bit |
| Number of Analog Input Channels | 8 differential or 15 single-ended/pseudo differential |
| Sampling Rate | Up to 19.2 kSPS |
| 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, High |
| RMS Noise | 24 nV rms at 1.17 SPS, gain = 128 |
Key Features
- Low noise and low power consumption, making it suitable for battery-powered devices and high precision measurement applications.
- Integrated PGA and reference, allowing for direct interface with small amplitude signals.
- Flexible power modes (Low, Mid, High) to tailor current consumption, output data rates, and rms noise.
- Extensive diagnostic functionality including cyclic redundancy check (CRC), signal chain checks, and serial interface checks.
- Channel sequencer allowing simultaneous conversion of multiple channels and interleaving diagnostics with conversions.
- Per channel configuration with up to eight different setups for gain, filter type, output data rate, buffering, and reference source.
- AEC-Q100 qualified for automotive applications.
Applications
- High precision measurement systems.
- Automotive applications (AEC-Q100 qualified).
- Industrial process control and automation.
- Medical devices requiring high accuracy and low noise.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7124-8 ADC?
The AD7124-8 has a 24-bit resolution.
- How many analog input channels does the AD7124-8 support?
The AD7124-8 supports 8 differential or 15 single-ended/pseudo differential input channels.
- What are the power supply requirements for the AD7124-8?
The AD7124-8 operates with a single analog power supply from 2.7 V to 3.6 V or a dual 1.8 V power supply, and the digital supply ranges from 1.65 V to 3.6 V.
- What is the temperature range for the AD7124-8?
The AD7124-8 is specified for a temperature range of −40°C to +125°C.
- What types of diagnostics does the AD7124-8 support?
The AD7124-8 supports cyclic redundancy check (CRC), signal chain checks, and serial interface checks.
- Can the AD7124-8 be configured on a per channel basis?
Yes, the AD7124-8 allows per channel configuration with up to eight different setups for gain, filter type, output data rate, buffering, and reference source.
- Is the AD7124-8 suitable for automotive applications?
Yes, the AD7124-8 W grade is AEC-Q100 qualified for automotive applications.
- What is the package type of the AD7124-8?
The AD7124-8 is housed in a 32-lead LFCSP package.
- How does the AD7124-8 manage power consumption?
The AD7124-8 offers three integrated power modes (Low, Mid, High) to tailor current consumption, output data rates, and rms noise.
- What is the sampling rate of the AD7124-8?
The AD7124-8 can achieve a sampling rate of up to 19.2 kSPS.
