101dB, 145dB at an output data rate of 30.5Msps

Linear Technology Korea announced the release of an innovative latency-free 24-bit SAR (successive approximation register) ADC (analog-to-digital converter).

The LTC2380-24 incorporates a digital filter that averages conversion results from 1 to 65,536 in real time, demonstrating dramatically improved dynamic range performance of 101 dB at an output data rate of 1.5 Msps and 145 dB at an output data rate of 30.5 Msps. This makes the LTC2380-24 suitable for vibration-related analysis, medical applications, and other applications requiring a wide dynamic range.

The LTC2380-24, equipped with a built-in digital filter that averages conversion results, reduces the processing burden on the digital host, thereby conserving digital resources and associated power. Furthermore, through the LTC2380-24, results are read at a low serial clock of 2 MHz and can be easily interfaced with a microprocessor. In addition, it can be used with slower devices.

The LTC2380-24 achieves 24-bit noise performance and features high DC precision with a maximum INL of ±3.5 ppm, while consuming 28 mW from a single 2.5 V power supply.
LTC2380-24 is available in small MSOP-16 and 4mm × 3mm DFN-16 packages and is priced at $31.95 per unit in quantities of 1,000. This product is drop-in compatible with the LTC2378-20 family of SAR ADCs, which have no latency of 1 Msps to 0.5 ppm INL, allowing for easy system upgrades up to 24 bits.