Yes, the MAX5422's end-to-end resistance can vary by 25% off the nominal value. For a particular MAX5422, the variance will be consistent for that device. For example, if the end-to-end resistance of a particular MAX5422 is 55kOhms, that device will always have an end-to-end resistance of 55kOhms.
The max/min values stated are guaranteed by design, but you can expect the production devices to be much closer to the nominal value of 50kOhm. This device was designed for low temperature drift vs temperature change rather than end-to-end accuracy.
The max/min values stated are guaranteed by design, but you can expect the production devices to be much closer to the nominal value of 50kOhm. This device was designed for low temperature drift vs temperature change rather than end-to-end accuracy.