LTC2497CUHF#TRPBF

LTC2497CUHF#TRPBF is a 16-channel (eight differential), 16bit, no latency ADC with easy drive technology and a 2-wire, I²C interface. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy. It includes an integrated oscillator. This device can be configured to measure an external signal from combinations of 16 analogue input channels operating in single ended or differential modes. It automatically rejects line frequencies of 50Hz and 60Hz simultaneously. It is used in applications such as direct sensor digitizer, direct temperature measurement, instrumentation, industrial process control.

• Directly digitizes high impedance sensors with full accuracy
• 2-wire I²C interface with 27 addresses plus one global address for synchronization
• GND to VCC input/reference common mode range
• Single supply operation range from 2.7V to 5.5V, internal oscillator
• 600nV RMS noise (0.02LSB transition noise)
• Integral nonlinearity is 2ppm of VREF typical at (TA = 25°C)
• Offset error is 0.5µV typical at (TA = 25°C)
• Total unadjusted error is 15ppm of VREF typical at (TA = 25°C)
• Output noise is 0.6µVRMS typical at (TA = 25°C)
• Operating temperature range from 0°C to 70°C, package style is 38-lead plastic QFN

附註

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