LTC2430 Datasheet | Linear Technology

.. LTC2430/LTC2431 20-Bit No Latency ∆ΣTM ADCs with Differential Input and Differential Reference Features s s DESCRIPTIO s s s s s s s s U APPLICATIO S s s s s s s s s s Low Supply Current (200µA in Conversion Mode and 4µA in Autosleep Mode) Differential Input and Differential Reference with GND to VCC mon Mode Range 3ppm INL, No Missing Codes 10ppm Full-Scale Error and 1ppm Offset 0.56ppm Noise, 20.8 ENOBs No Latency: Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After an Input Step Single Supply 2.7V to 5.5V Operation Internal Oscillator- No External ponents Required 110d B Min, 50Hz/60Hz Notch Filter Pin patible with 24-Bit LTC2410/LTC2411 The LTC®2430/LTC2431 are 2.7V to 5.5V micropower 20-bit differential ∆Σ analog-to-digital converters with an integrated oscillator, 3ppm INL and 0.56ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2430/LTC2431 can be configured for better than 110d B differential mode rejection at 50Hz or 60Hz ± 2%, or they can be driven by an external oscillator for a user-defined rejection frequency. The internal oscillator requires no external frequency setting ponents. The converters accept any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The fullscale differential input range is from - 0.5VREF to 0.5VREF. The reference mon mode voltage, VREFCM, and the input mon mode voltage, VINCM, may be independently set anywhere within GND to VCC. The DC mon mode input rejection is better than 120d B. The LTC2430/LTC2431 municate through a flexible 3-wire digital interface that is patible with SPI and MICROWIRETM protocols. , LTC and LT are registered trademarks of Linear Technology Corporation. No Latency ∆Σ is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National...