High-speed SAR ADCs
23 June 2021
Analogue, Mixed Signal, LSI
Texas Instruments has expanded its portfolio of high-speed data converters with a broad new family of successive-approximation register (SAR) analog-to-digital converters (ADCs) that enable high-precision data acquisition in industrial designs. Featuring high dynamic range at low power consumption, the ADC3660 family includes eight SAR ADCs in 14-, 16- and 18-bit resolution at sampling speeds ranging from 10 to 125 MSps, helping designers improve signal resolution, extend battery life and strengthen system protection.
The ADC3660 family delivers up to 80% lower latency than competitive devices at similar speeds. For example, system designers can achieve one-clock (8 ns) ADC latency with the 125 MSps, 14-bit, dual-channel ADC3664. The family’s ultra-low latency enables high-speed digital control loops in a wide variety of industrial systems to more accurately monitor and respond to voltage and current spikes, increasing tool precision in applications such as semiconductor manufacturing systems.
Other family features that reduce design complexity include on-chip decimation options that enable designers to easily remove unwanted noise and harmonics in the system and boost SNR and spurious-free dynamic range up to 15 dB. These decimation options, along with the CMOS interface, enable designers to use these ADCs with Arm-based processors or digital signal processors instead of FPGAs, which can help lower system cost.
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