The LTC2356-14 achieves 72.3dB SINAD and 82dB SFDR at 1.4MHz. While measuring ±1.25V bipolar inputs differentially, the LTC2356-14’s -60dB common mode rejection ratio allows users to eliminate common mode noise. When the ADC is not converting, power dissipation can be reduced to 4mW in Nap mode, with the internal 2.5V reference remaining active, and 13uW with all internal circuitry powered down in Sleep mode.
For applications requiring a unipolar input range, Linear Technology is also introducing the LTC2355-14, a 14-bit SAR ADC that is otherwise identical. The LTC2355-14 measures 0V to 2.5V unipolar input voltages. For lower resolution applications, Linear Technology is also introducing the LTC2356-12 and LTC2355-12, pin- and software-compatible 12-bit versions of the LTC2356-14 and LTC2355-14. The LTC235x-14/-12 ADCs are also pin- and code-compatible with Linear Technology’s existing LTC1403 family, allowing users to easily upgrade their designs for faster sample rates.
Pricing begins at $7.95 each for the LTC2356-14 and LTC2355-14, and at $4.95 each for the LTC2356-12 and LTC2355-12, in 1,000-piece quantities.
