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WM8224 Datasheet(PDF) 7 Page - Wolfson Microelectronics plc |
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WM8224 Datasheet(HTML) 7 Page - Wolfson Microelectronics plc |
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7 / 50 page  WM8224 Production Data w PD, Rev 4.1, June 2012 7 ELECTRICAL CHARACTERISTICS 40MHZ OPERATION Test Conditions AVDD = DVDD = 3.3V, AGND = DGND = 0V, TA = 25C, MCLK = 40MHz unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Overall System Specification (including 16-bit ADC, PGA, Offset and CDS functions) Max Conversion rate 40 MSPS Full-scale input voltage range (see Note 1) LOWREFS=0, Max Gain LOWREFS=0, Min Gain 0.25 3.03 Vp-p Vp-p LOWREFS=1, Max Gain LOWREFS=1, Min Gain 0.15 1.82 Vp-p Vp-p Input signal limits (see Note 2) VIN FOL_EN=0 AGND-0.3 AVDD+0.3 V FOL_EN=1, minimum AGND V FOL_EN=1, maximum AGND+1.2 V Input capacitance CIN RINP, GINP, BINP to AGND 10 pF Full-scale transition error Gain = 0dB; PGA[8:0] = 18(hex) 20 mV Zero-scale transition error Gain = 0dB; PGA[8:0] = 18(hex) 20 mV Differential non-linearity DNL 16-bit 1.2 LSB Integral non-linearity (pk-pk/2) INL 16-bit 56 LSB Channel to channel gain matching 1.3 % Output noise Unity Gain (Unused channels grounded) 10.2 LSB rms Programmable Gain Amplifier Resolution 9 bits Gain ] : [ PGA * . . 0 8 511 34 7 66 0 V/V Max gain, each channel GMAX 8 V/V Min gain, each channel GMIN 0.66 V/V Analogue to Digital Converter Resolution 16 bits Speed 40 MSPS Full-scale input range (2*(VRT-VRB)) LOWREFS=0 2 V LOWREFS=1 1.2 V 60MHZ OPERATION Test Conditions AVDD = DVDD = 3.3V, AGND = DGND = 0V, TA = 25C, MCLK = 60MHz unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Overall System Specification (including 10-bit ADC, PGA, Offset and CDS functions) Max Conversion rate 60 MSPS Full-scale input voltage range (see Note 1) LOWREFS=0, Max Gain LOWREFS=0, Min Gain 0.26 3.03 Vp-p Vp-p LOWREFS=1, Max Gain LOWREFS=1, Min Gain 0.16 1.82 Vp-p Vp-p Input signal limits (see Note 2) VIN FOL_EN=0 AGND-0.3 AVDD+0.3 V FOL_EN=1, minimum AGND V FOL_EN=1, maximum AGND+1.2 V Input capacitance CIN RINP, GINP, BINP to AGND 10 pF Full-scale transition error Gain = 0dB; PGA[8:0] = 18(hex) 20 mV |
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