LTC2452IDDB#TRMPBF

LTC2452IDDB#TRMPBF is a fully differential, 16bit, analogue-to-digital converter. It uses a single 2.7V to 5.5V supply and communicates through an SPI 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 by several orders of magnitude when compared to 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 over-sampling ratio, it has extremely relaxed anti-aliasing requirements. Applications include system monitoring, environmental monitoring, direct temperature measurements, instrumentation, industrial process control, data acquisition, and embedded ADC upgrades.

• 16bit resolution, single conversion settling time for multiplexed applications
• Single-cycle operation with auto shutdown, SPI interface
• Internal oscillator—no external components required
• Integral Nonlinearity is 1LSB typical at (TA = 25°C)
• Offset error is 2LSB typical at (TA = 25°C)
• Conversion supply current is 800µA typical at (active-low CS = GND, TA = 25°C)
• Sleep current is 0.2µA typical at (active-low CS = VCC, TA = 25°C)
• Conversion time is 16.6ms typical at (TA = 25°C)
• SCK frequency is 2MHz maximum at (TA = 25°C)
• Operating temperature range from -40°C to 85°C, 8-lead plastic DFN package

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