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应用功能：多量程(±10V, ±5V, +10V, +5V)、单+5V、12位数DAS，8+4总线接口 MAX197 multi-range, 12-bit data-acquisition system (DAS) requires only a single +5V supply for operation, yet accepts signals at its analog inputs that may span both above the power-supply rail and below ground. This system provides