LTC2485CDD#PBF

LINEAR TECHNOLOGY  LTC2485CDD#PBF  模数转换器, 24 bit, 6.8 SPS, 单, 2.7 V, 5.5 V, DFN

The is a 24-bit +sign delta-sigma™ Analog-to-digital Converter ADC with patented EasyDrive™ technology and I²C digital 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 input signals, with rail-to rail input range to be directly digitized while maintaining exceptional DC accuracy. It includes an on-chip oscillator. The ADC can be configured through an I²C interface to reject line frequencies. It allows a wide common mode input range independent of the reference voltage. The reference can be as low as 100mV or can be tied directly to VCC. The ADC includes an on-chip trimmed oscillator eliminating the need for external crystals or oscillators. Absolute accuracy and low drift are automatically maintained through continuous, transparent, offset and full-scale calibration.

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EasyDrive™ Technology enables rail-to-rail inputs with zero differential input current

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Directly digitizes high impedance sensors with full accuracy

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GND to VCC Input/reference common mode range

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No latency - digital filter settles in a single cycle

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2-wire I²C interface

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Selectable 2x speed mode

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Internal oscillator

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Six addresses available and one global address for synchronization