The output of the binary weighted current mode driver with manual adjust
نویسندگان
چکیده
Test results show that the scheme of the self-calibration works very well. Fig. 1 shows that the output of the binary weighted current mode driver has good linearity. Fig. 2 shows the driver’s output accuracy with or without the self-calibration (test result). The switches Qx automatically turned on or off while the reference voltage of current mode driver changes. Without the selfcalibration, the output varies more than ±7% while driver’s current reference varies, while it only varies ±1% with the self-calibration (an external switch is used to set the self-calibration circuit on or off in this trial chip).
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