LTC2345IUK-18#PBF

LINEAR TECHNOLOGY  LTC2345IUK-18#PBF  模数转换器, SAR, 8通道, 18 bit, 200 kSPS, 单, 4.75 V, 5.25 V, QFN 新

The is an octal, 18bit, 200Ksps differential SoftSpan ADC with wide input common mode range in 48 pin QFN package. This 18bit, 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 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 ±4.096, 0V to 4.096V, ±2.048V, or 0V to 2.048V signals. Individual channels may also be disabled to increase throughput on the remaining channels. The IC"s analogue inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. It is used in programmable logic controllers, industrial process control and high speed data acquisition.

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Eight simultaneous sampling channels

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Operating temperature range from -40°C to 85°C, resolution of 18bit, no missing codes

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±5LSB INL maximum, ±4.096V range

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91.8dB single conversion SNR typical, -113dB THD typical at fIN = 2KHz

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102dB CMRR typical at fIN = 200Hz, rail to rail input overdrive tolerance

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Integrated reference and buffer 4.096V

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SPI CMOS 1.8V to 5V and LVDS serial I/O

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Internal conversion clock, no cycle latency

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81mW power dissipation typical