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8通道4.8 kHz超低噪声PGA 24位模数转换器ad7194数据表
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The AD7194 is a low noise， complete analog front end for high precision measurement applications. It contains a low noise， 24-bit sigma-delta （Σ-Δ） analog-to-digital converter （ADC）。 The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC. The device can be configured to have eight differential inputs or sixteen pseudo differential inputs. The on-chip 4.92 MHz clock can be used as the clock source to the ADC or， alternatively， an external clock or crystal can be used. The output data rate from the part can be varied from 4.7 Hz to 4.8 kHz. The device has a very flexible digital filter， including a fast settling option. Variables such as output data rate and settling time are dependent on the option selected. For applications that require all conversions to be settled， the AD7194 includes zero latency. The part operates with a power supply from 3 V to 5.25 V. It consumes a current of 4.65 mA， and it is housed in a 32-lead LFCSP package
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