To design with ISOTMP35-Q1, use the parameters listed in Table 7-4. Most CMOS-based ADCs have a sampled data comparator input structure. When the ADC charges the sampling capacitor, the capacitor requires instantaneous charge from the output of the analog temperature sensor, such as the ISOTMP35-Q1. Therefore, the output impedance of the temperature sensor can affect ADC performance. In most cases, adding an external capacitor mitigates design challenges. The ISOTMP35-Q1 is specified and characterized with a 1000pF maximum capacitive load (C_LOAD). The C_LOAD is a sum of the C_FILTER, C_MUX and C_SAMPLE. TI recommends maximizing the C_FILTER value while allowing for the maximum specified ADC input capacitance (C_MUX + C_SAMPLE) to limit the total C_LOAD at 1000pF. In most cases, a 680pF C_FILTER provides a reasonable allowance for ADC input capacitance to minimize ADC sampling error and reduce noise coupling. An optional series resistor (R_FILTER) and C_FILTER provides additional low-pass filtering to reject system level noise. TI recommends placing R_FILTER and C_FILTER as close to the ADC input as possible for optimal performance.