LTC2348ILX-18#PBF

LTC2348-18 is a octal, 18bit, 200ksps differential ±10.24V input SoftSpan ADC with wide input common mode range. It is a low noise 8-channel simultaneous sampling successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V low voltage supply, flexible high voltage supplies, and using the internal reference and buffer, each channel of this SoftSpanTM ADC can be independently configured on a conversion-by-conversion basis to accept ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V signals. Individual channels may also be disabled to increase throughput on the remaining channels. The wide input common mode range and 118dB CMRR of the LTC2348-18 analogue inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. Application includes programmable logic controllers, industrial process control, power line monitoring, test and measurement.

• 200ksps per channel throughput
• Eight simultaneous sampling channels
• Typ integral linearity error is ±1LSB (Soft Spans 7 and 6: ±10.24V and ±10V Ranges)
• Guaranteed 18bit, no missing codes
• Differential, wide common mode range inputs
• 96.7dB typical signal-to-noise ratio (Soft Spans 7 and 6: ±10.24V and ±10V Ranges, fIN = 2KHz)
• Typ total harmonic distortion is -109dB (Soft Spans 7 and 6: ±10.24V and ±10V Ranges, fIN = 2KHz)
• Typ input common mode rejection ratio is 118dB (VIN+ = VIN− = 18VP-P 200Hz sine)
• Rail-to-rail input overdrive tolerance
• 48 lead plastic LQFP package, operating temperature range from -40°C to 85°C

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