Reduce test time and product development cycles with high resolution and low power.

Analog Devices (ADI) has launched a next-generation high-precision successive-approximation radar (SAR) analog-to-digital converter (ADC). This product combines characteristics such as high performance, low power consumption, a small footprint, and ease of use in a unique way.

These ICs extend the operating duration of wireless test and measurement devices during field testing and improve measurement accuracy and repeatability. The released products support the development of compact measurement devices that can increase the number of data acquisition channels positioned closer to the sensor being measured or placed within the same form factor.



System designers can reduce design difficulties related to the driving stage of the ADC and expand the range of amplifier choices by using features such as the high input impedance mode and side compression mode of the 2-MSPS, 18-bit AD4003 and 16-bit AD4000 SAR ADCs.

In high-input impedance mode, a low-power precision amplifier can be used to directly drive the ADC and reduce the signal chain power requirements. Additionally, overvoltage protection is built-in, eliminating the need for a separate external protection device, and through lateral compression, the stage driving the ADC can be activated from the same power supply rail as the ADC, simplifying power management.

This combination allows for increasing channel density while maintaining performance and relaxing system-level power requirements. The AD400x series includes 20-bit, 18-bit, and 16-bit SAR ADCs with speeds between 500 kSPS and 2 MSPS.