DC358A

DC358A is a demo board for the LTC2411 24-bit no latency delta sigma ADC with differential input and reference in MSOP. The demo board allows the user to quickly evaluate the LTC2411 performance while demonstrating its ease of use. The board connects directly to the RS232C port of any IBM compatible PC. The demo board derives its power from the RS232 port. The on board LT1236 ordinarily powers the LTC2411, and may be used as a 5V reference. Alternatively, the 2.5V reference may be used as reference, and the 5V output from the LT1236 may be used as excitation for a bridge application, although, an external power supply is likely required in this case. The 2.5V output from the LT1261 can also be used as a bias source for sensing single ended bipolar signals that must be able to accommodate the full +/- 2.5V input range.

• LTC2411 features 2ppm linearity, 4ppm full-scale accuracy, 1ppm offset accuracy, 0.29-ppm RMS noise
• LTC2411 operates from 2.7 to 5.5V supplies
• Draws less than 300uA of current and 2uA sleep mode current