24-Bit, 1.5Msps/2Msps, Low Power SAR ADC with Integrated Digital Filter

The LTC2380-24 is a low noise, low power, high speed 24-bit successive approximation register (SAR) ADC with an integrated digital averaging filter. Operating from a 2.5V supply, the LTC2380-24 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2380- 24 consumes only 28mW and achieves ±3.5ppm INL maximum and no missing codes at 24 bits.

The LTC2380-24 has an easy to use integrated digital averaging filter that can average 1 to 65536 conversion results real-time, dramatically improving dynamic range from 101dB at 1.5Msps to 145dB at 30.5sps. No separate programming interface or configuration register is required.

The high speed SPI-compatible serial interface supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisychain mode. The LTC2380-24 automatically powers down between conversions, reducing power dissipation at lower sampling rates.

Applications

* Seismology

* Energy Exploration

* Medical Imaging

* High Speed Data Acquisition

* Industrial Process Control

* ATE

* Guaranteed 24-Bits No Missing Codes* ±0.5ppm INL (Typ)* Integrated Digital Filter with Real-Time Averaging* Low Power: 28mW at 2Msps* 100dB SNR (Typ) at 1.5Msps* 145dB Dynamic Range (Typ) at 30.5sps* –117dB THD (Typ) at fIN = 2kHz* 50Hz/60Hz Rejection* Digital Gain Compression (DGC)* Guaranteed Operation to 85°C* Single 2.5V Supply* Fully Differential Input Range Up to ±5V* 1.8V to 5V SPI-Compatible Serial I/O with Daisy- Chain Mode* 16-Lead MSOP and 4mm × 3mm DFN Packages