Description

24-Bit High Speed 8-Channel ADCs with Selectable Multiple Reference Inputs Features: Five Selectable Differential Reference Inputs Four Differential/Eight Single-Ended Inputs 4-Way MUX for Multiple Ratiometric Measurements Up to 8kHz Output Rate Up to 4kHz Multiplexing Rate Selectable Speed/Resolution: 2µVRMS Noise at 1.76kHz Output Rate 200nVRMS Noise at 13.8Hz Output Rate with Simultaneous 50/60Hz Rejection Guaranteed Modulator Stability and Lock-Up Immunity for any Input and Reference Conditions 0.0005% INL, No Missing Codes Autosleep Enables 20µA Operation at 6.9Hz <5µV Offset (4.5V < VCC < 5.5V, –40°C to 85°C) Differential Input and Differential Reference with GND to VCC Common Mode Range No Latency Mode, Each Conversion is Accurate Even After a New Channel is Selected Internal Oscillator—No External Components LTC2447 Includes MUXOUT/ADCIN for External Buffering or Gain Tiny QFN 5mm x 7mm Package