LTC2453IDDB#TRMPBF

LTC2453IDDB#TRMPBF is an ultra-tiny, fully differential, 16bit, analogue-to-digital converter. It uses a single 2.7V to 5.5V supply and communicates through an I²C interface. It includes an integrated oscillator that does not require any external components. It uses a delta-sigma modulator as a converter core and has no latency for multiplexed applications. It includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude lower than conventional delta-sigma converters. Additionally, due to its architecture, there is negligible current leakage between the input pins. It can sample at 60 conversions per second, and due to the very large oversampling ratio, has extremely relaxed antialiasing requirements. Applications include system monitoring, environmental monitoring, direct temperature measurements, instrumentation, industrial process control, data acquisition, and embedded ADC upgrades.

• ±VCC differential input range, 16bit resolution (including sign), no missing codes
• Single conversion settling time for multiplexed applications
• Single-cycle operation with auto shutdown, internal oscillator—no external components required
• 2-wire I²C interface, supply current is 800µA typical at (conversion, TA = 25°C)
• Sleep current is 0.2µA typical at (TA = 25°C)
• 60 conversions per second, offset error is 2LSB typical at (TA = 25°C)
• Transition noise is 1.4µVRMS typical at (TA = 25°C)
• SCL clock frequency is 400KHz maximum at (TA = 25°C)
• Gain error is 0.01% of FS typical at (TA = 25°C)
• Operating temperature range from -40°C to 85°C, 8-lead plastic DFN package

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