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CY8CKIT-059 数据表(PDF) 89 Page - Infineon Technologies AG |
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CY8CKIT-059 数据表(HTML) 89 Page - Infineon Technologies AG |
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89 / 140 page  Document Number: 001-84932 Rev. *N Page 88 of 139 PSoC® 5LP: CY8C58LP Family Datasheet 11.5.2 Delta-Sigma ADC Unless otherwise specified, operating conditions are: Operation in continuous sample mode fclk = 3.072 MHz for resolution = 16 to 20 bits; fclk = 6.144 MHz for resolution = 8 to 15 bits Reference = 1.024 V internal reference bypassed on P3.2 or P0.3 Unless otherwise specified, all charts and graphs show typical values Table 11-20. 20-bit Delta-sigma ADC DC Specifications Parameter Description Conditions Min Typ Max Units Resolution 8 – 20 bits Number of channels, single ended – – No. of GPIO – Number of channels, differential Differential pair is formed using a pair of GPIOs. –– No. of GPIO/2 – Monotonic Yes – – – – Ge Gain error Buffered, buffer gain = 1, Range = ±1.024 V, 16-bit mode, 25 °C –– ±0.4 % Gd Gain drift Buffered, buffer gain = 1, Range = ±1.024 V, 16-bit mode –– 50 ppm/° C Vos Input offset voltage Buffered, 16-bit mode, full voltage range –– ±0.2 mV Buffered, 16-bit mode, VDDA = 1.8 V ±5%, 25 °C –– ±0.1 mV TCVos Temperature coefficient, input offset voltage Buffer gain = 1, 16-bit, Range = ±1.024 V –– 1 µV/°C Input voltage range, single ended[45] VSSA –VDDA V Input voltage range, differential unbuf- fered[45] VSSA –VDDA V Input voltage range, differential, buffered[45] VSSA –VDDA – 1 V PSRRb Power supply rejection ratio, buffered[45] Buffer gain = 1, 16-bit, Range = ±1.024 V 90 – – dB CMRRb Common mode rejection ratio, buffered[45] Buffer gain = 1, 16 bit, Range = ±1.024 V 85 – – dB TA ≤ 105 °C 80 – – INL20 Integral non linearity[45] Range = ±1.024 V, unbuffered – – ±32 LSB DNL20 Differential non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB INL16 Integral non linearity[45] Range = ±1.024 V, unbuffered – – ±2 LSB DNL16 Differential non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB INL12 Integral non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB DNL12 Differential non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB INL8 Integral non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB DNL8 Differential non linearity[45] Range = ±1.024 V, unbuffered – – ±1 LSB Note 45. Based on device characterization (not production tested). |
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