AN239 Datasheet - Silicon

AN239, Expanding ADC1 Dyanmic Range

www.DataSheet4U.com AN239 E X PA N D I N G ADC1 D Y N A M I C R A N G E F O R T H E Si8250 1.Introduction The Si8250 data sheet specifies a common .

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Datasheet Details

Part number:

AN239

Manufacturer:

Silicon

File Size:

285.44 KB

Description:

Expanding ADC1 Dyanmic Range

Features

* SB. The ADC resolution is set at 4 mV. These settings yield a sense voltage range of 0.664 to 1.072 V. The high-side resistor, Rs, is specified to be 7500 Ω. The results are easily calculated with a spreadsheet and are shown in Figure 7. The resulting circuit is shown in Figure 8. Parameter Vout(min

Applications

* such as power factor correction and wide variable output power supplies. 2. ADC1 Common Mode Limits The specified common mode range for ADC1 (Figure 1) is from 0.6 V to the voltage reference which is typically 1.2 V. This simply means that the input voltages to ADC1 from both VSENSE and the REFDAC

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AN239 Expanding ADC1 Dyanmic Range Silicon

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