03 Nov 2015

Low noise, low power, high speed 24-bit SAR ADC

Linear Technology has introduced the LTC2380-24, a no latency 24-bit 2Msps successive approximation register (SAR) analogue-to-digital converter (ADC). Operating from a 2.5V supply, the device is said to feature a ±Vref fully differential input range with Vref ranging from 2.5 to 5.1V. The LTC2380- 24 consumes 28mW and is claimed to achieve ±3.5ppm INL maximum and no missing codes at 24 bits.

The LTC2380-24 also features an integrated digital filter that is claimed to average 1 to 65,536 conversion results real time, improving the dynamic range from 101dB at 1.5Msps to 145dB at an output data rate of 30.5sps. This suits the device for seismic, medical and other applications demanding high dynamic range.

Using an on-chip digital filter to average conversion results, the LTC2380-24 is said to eliminate the processing burden from the digital host, conserving digital resources and the associated power. Moreover, the LTC2380-24 allows results to be read out with a serial clock as low as 2MHz, enabling use with slower devices.

successive approximation register#

analogue-to-digital converter

2Msps

http://www.linear.com/