LTC2487IDE#TRPBF

LTC2487IDE#TRPBF is a 4-channel (2 differential), 16bit, No Latency ∆S™ ADC with easy drive technology and a 2-wire, I²C interface. The patented sampling scheme eliminates dynamic input current errors and the short comings 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 programmable gain, a high accuracy temperature- sensor and an integrated oscillator. This device can be configured to measure an external signal (from combinations of 4 analogue input channels operating in single ended or differential modes) or its internal temperature sensor. The integrated temperature sensor offers 1/2°C resolution and 2°C absolute accuracy. 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 9 addresses plus one global address for synchronization
• Programmable gain from 1 to 256, integrated high accuracy temperature sensor
• GND to VCC input/reference common mode range
• Single supply operation range from 2.7V to 5.5V
• 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 -40°C to 85°C, package style is 14-lead plastic DFN

Pastabos

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