AD4134 Analog-to-Digital Converter

ADI's AD4134 is a quad-channel, low noise, simultaneous sampling, precision analog-to-digital converter (ADC) that delivers on functionality, performance, and ease of use. It is easy to drive due to its resistive input structure, which eliminates the need for external high-speed amplifiers to drive the analog inputs. AD4134's inherent anti-aliasing filter also eliminates the need for an external second-order anti-alias filter preceding the ADC input. An integrated asynchronous sample rate converter simplifies the handshake between the system clock and the modulator clock without limiting interface maximum throughput.

The AD4131 is a direct upgrade from the AD7134 because of the expanded temperature range. This makes the AD4131 ideal for industrial applications.

The EVAL-AD4134FMCZ evaluation kit features the AD4134 24-bit, 4-channel, simultaneous sampling, 1.5 MSPS precision alias-free ADC. The EVAL-AD4134FMCZ draws power from the system demonstration platform (SDP) EVAL-SDP-CH1Z (SDP-H1) board. The on-board dc-to-dc regulators regulate an external supply of 8 V to 14 V down to 5 V and 1.8 V to supply the AD4134 and peripheral components. A separate reference of 4.096 V is generated by the on board ADR444. The ADC is clocked by an on-board crystal.

The EVAL-AD4134FMCZ connects to the PC USB port via the SDP-H1 board.

The AD4134 evaluation software running on a PC provides full accessibility to the AD4134 device register map, as well as a data analysis interface to display key parameters and graphics from the conversion result in both time and frequency domains.

Features

• Alias-free eliminates the need for external second-order anti-alias filter preceding the ADC input, reducing size and complexity of the overall solution
• Resistive ADC and reference input without the need for external high-speed amplifier to drive the analog inputs
• Easy to sync with simplified system clock design when synchronized sampling, isolation, or both is required

Applications

• Instrumentation and measurement: ETM, audio test
• Industrial automation: condition monitoring for predictive maintenance
• Aerospace and defense: sonar
• Electrical test and measurement
• 3-phase power quality analysis
• Control and hardware in loop verification
• Acoustic and material science research and development