LTC2440 Datasheet PDF

●The LTC2440CGN#PBF is a high speed 24-bit no latency sigma-delta™ Analog-to-digital Converter (ADC) with 5ppm INL and 5µV offset. It uses proprietary delta-sigma architecture enabling variable speed and resolution with no latency. Ten speed/resolution combinations are programmed through a simple serial interface. Alternatively, by tying a single pin HIGH or LOW, a fast or ultralow noise speed/resolution combination can be easily selected. The accuracy and power dissipation are independent of the speed selected. Since there is no latency, a speed/resolution change may be made between conversions with no degradation in performance. Following each conversion cycle, the ADC automatically enters a low power sleep state. Power dissipation may be reduced by increasing the duration of this sleep state.

● Selectable speed/resolution

● Differential input and differential reference with GND to VCC common mode range

● No latency, each conversion is accurate even after an input step

● Internal oscillator - no external components

● Pin compatible with the LTC2410