AD7134: High-Performance, Alias-Free 24-Bit ADC With Multiple Sampling Modes.pdf

The AD7134 is a 24-bit, 4-channel simultaneous sampling analog-to-digital converter (ADC) offering high performance and flexibility for diverse applications.

Key Features:

High-Resolution & Precision: 24-bit resolution with 1.5 MSPS precision, alias-free conversion.
Excellent Performance: 108 dB dynamic range at 374 kSPS ODR (FIR filter), 137 dB at 10 SPS (sinc3 filter). -120 dB THD at 1 kHz input tone.
Versatile Sampling Rate: Programmable data rates from 0.01 kSPS to 1496 kSPS with 0.01 SPS resolution, controllable by external signal.
Flexible Configuration: Asynchronous sample rate converter, SPI or pin-based configurable operation, daisy-chaining support.
Power Efficient: Two power modes (high performance and low power), 4.5V to 5.5V and 1.65V to 1.95V supply voltage.
Wide Temperature Range: 0°C to 85°C operating temperature.

Applications:

Electrical test and measurement
Audio testing
3-phase power quality analysis
Control and hardware in loop verification
Sonar systems
Condition monitoring for predictive maintenance
Acoustic and material science research

Key Components & Functionality:

Continuous Time Sigma-Delta Modulator (CTSD): Enables high-resolution conversion.
Asynchronous Sample Rate Converter: Allows flexible data rate control.
Programmable Digital Filters: Includes low latency sinc3 and sinc6 filters, FIR filter with 32 µdB pass-band ripple.
Multidevice Synchronization: Achieved through a single signal line.
Error Detection & Correction: CRC error checking on data and SPI interface.
* Power Management: Two power modes for optimized performance and power consumption.