LTC2379IDE-18#PBF

LTC2379IDE-18#PBF is a low noise, low power, high-speed 18bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, this device has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. It consumes only 18mW and achieves ±2LSB INL maximum, with no missing codes at 18 bits with 101.2dB SNR. The fast 1.6Msps throughput with no cycle latency makes the device ideally suited for a wide variety of high-speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2379-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate. Applications include medical imaging, high-speed data acquisition, portable or compact instrumentation, industrial process control, low-power battery-operated instrumentation, and ATE.

• Digital gain compression, fully differential input range ±VREF
• VREF input range from 2.5V to 5.1V, no pipeline delay, no cycle latency
• 1.8V to 5V I/O voltages, SPI-compatible serial I/O with daisy-chain mode
• Internal conversion clock, resolution is 18bits
• Integral linearity error is 2LSB maximum at (TA = 25°C)
• Differential linearity error is 0.9LSB maximum at (TA = 25°C)
• Signal-to-noise ratio is 101.2dB typical at (fIN = 2KHz, VREF = 5V, TA = 25°C)
• Total harmonic distortion is -120dB typical at (fIN = 2KHz, VREF = 5V, TA = 25°C)
• 34MHz typical -3dB input bandwidth at (TA = 25°C and AIN = -1dBFS)
• Operating temperature range from -40°C to 85°C, 16-lead plastic DFN package

注释

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