LTC2357ILX-16#PBF

LTC®2357-16 is a 16bit, low noise 4-channel simultaneous sampling successive approximation register (SAR) ADC with buffered differential, wide common mode range picoamp inputs. Operating from a 5V low voltage supply, flexible high voltage supplies, and using the internal reference and buffer, each channel of this SoftSpan™ ADC can be independently configured on a conversion-by-conversion basis to accept signals. Individual channels may also be disabled to increase throughput on the remaining channels. The integrated picoamp-input analogue buffers, wide input common mode range and 128dB CMRR of the LTC2357-16 allow the ADC to directly digitize a variety of signals using minimal board space and power. Between one and four lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput. Application includes programmable logic controllers, industrial process control, power line monitoring, test and measurement.

• Simultaneous sampling of 4 buffered channels
• 350Ksps per channel throughput
• Integral linearity error is ±0.3LSB (typ, SoftSpans 7 and 6: ±10.24V and ±10V ranges)
• Guaranteed 16bit, no missing codes, differential, wide common mode range inputs
• Signal-to-noise ratio is 94.2dB (typ, SoftSpans 7 and 6: ±10.24V and ±10V Ranges, fIN = 2KHz)
• Total harmonic distortion is -110dB (typ, SoftSpans 7 and 6: ±10.24V and ±10V Ranges, fIN = 2KHz)
• Rail-to-rail input overdrive tolerance
• Integrated reference and buffer (4.096V)
• SPI CMOS (1.8V to 5V) and LVDS serial I/O, internal conversion clock, no cycle latency
• 48 lead plastic LQFP package, operating temperature range from -40°C to 85°C

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