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RA4M1 数据表(PDF) 89 Page - Renesas Technology Corp |
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RA4M1 数据表(HTML) 89 Page - Renesas Technology Corp |
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89 / 130 page  R01DS0355EJ0100 Rev.1.00 Page 89 of 130 Oct 8, 2019 RA4M1 Group 2. Electrical Characteristics Note: The characteristics apply when no pin functions other than 14-bit A/D converter input are used. Absolute accuracy does not include quantization errors. Offset error, full-scale error, DNL differential nonlinearity error, and INL integral nonlinearity error do not include quantization errors. Note 1. The conversion time is the sum of the sampling time and the comparison time. The number of sampling states is indicated for the test conditions. Note 2. Except for I/O input capacitance (Cin), see section 2.2.4, I/O VOH, VOL, and Other Characteristics. 14-bit mode Resolution - - 14 Bit - Conversion time*1 (Operation at PCLKC = 48 MHz) Permissible signal source impedance Max. = 0.3 kΩ 1.06 - - μs High-precision channel ADCSR.ADHSC = 0 ADSSTRn.SST[7:0] = 0Dh 1.63 - - μs Normal-precision channel ADCSR.ADHSC = 0 ADSSTRn.SST[7:0] = 28h Offset error - ±2.0 ±18 LSB High-precision channel ±24.0 LSB Other than above Full-scale error - ±3.0 ±18 LSB High-precision channel ±24.0 LSB Other than above Quantization error - ±0.5 - LSB - Absolute accuracy - ±5.0 ±20 LSB High-precision channel ±32.0 LSB Other than above DNL differential nonlinearity error - ±4.0 - LSB - INL integral nonlinearity error - ±4.0 ±12.0 LSB - Table 2.44 A/D conversion characteristics (3) in high-speed A/D conversion mode (1 of 2) Conditions: VCC = AVCC0 = 2.4 to 5.5 V, VREFH0 = 2.4 to 5.5 V Reference voltage range applied to the VREFH0 and VREFL0. Parameter Min Typ Max Unit Test conditions Frequency 1 - 32 MHz - Analog input capacitance*2 Cs - - 8 (reference data) pF High-precision channel - - 9 (reference data) pF Normal-precision channel Analog input resistance Rs - - 2.5 (reference data) kΩ High-precision channel - - 6.7 (reference data) kΩ Normal-precision channel Analog input voltage range Ain 0 - VREFH0 V - 12-bit mode Resolution - - 12 Bit - Conversion time*1 (Operation at PCLKC = 32 MHz) Permissible signal source impedance Max. = 1.3 kΩ 1.41 - - μs High-precision channel ADCSR.ADHSC = 0 ADSSTRn.SST[7:0] = 0Dh 2.25 - - μs Normal-precision channel ADCSR.ADHSC = 0 ADSSTRn.SST[7:0] = 28h Offset error - ±0.5 ±4.5 LSB High-precision channel ±6.0 LSB Other than above Full-scale error - ±0.75 ±4.5 LSB High-precision channel ±6.0 LSB Other than above Quantization error - ±0.5 - LSB - Absolute accuracy - ±1.25 ±5.0 LSB High-precision channel ±8.0 LSB Other than above Table 2.43 A/D conversion characteristics (2) in high-speed A/D conversion mode (2 of 2) Conditions: VCC = AVCC0 = 2.7 to 5.5 V, VREFH0 = 2.7 to 5.5 V Reference voltage range applied to the VREFH0 and VREFL0. Parameter Min Typ Max Unit Test conditions |
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