A 5-bit fine resistor string is directly via switches connected to a 5-bit coarse resistor string. As a consequence current from the coarse string will run via the fine resistor string. The resistors...

A 5-bit fine resistor string is directly via switches connected to a 5-bit coarse

resistor string. As a consequence current from the coarse string will run via the fine

resistor string. The resistors of the coarse string are 100 each. What should be the

value of the fine resistors if the maximum DNL due to the resistive loading of the

coarse string must be less than 0.5 LSB?