AD5273BRJZ10-R7

AD5273 is a 64-position, one-time programmable (OTP) digital potentiometer that employs fuse link technology to achieve permanent program setting. This device performs the same electronic adjustment function as most mechanical trimmers and variable resistors. It allows unlimited adjustments before permanently setting the resistance values. It is programmed using a 2-wire, I²C-compatible digital control. During write mode, a fuse blow command is executed after the final value is determined, thereby freezing the wiper position at a given setting (analogous to placing epoxy on a mechanical trimmer). When the permanent setting is achieved, the value does not change, regardless of the supply variations or environmental stresses under normal operating conditions. It is used in applications such as system calibrations, electronics level settings, mechanical potentiometers and trimmer replacement, transducer circuit adjustments, programmable filters upto 6MHz BW.

• Unlimited adjustments prior to OTP activation
• End-to-end terminal resistance is 10Kohm
• Resolution is 6bits
• Power supply range from 2.7V to 5.5V
• Supply current is 5µA max at (VIH = 5V or VIL = 0V)
• Adjustment settling time is 5µs typ at (VDD = 2.7V to 5.5V)
• I²C-compatible digital interface
• Computer software replaces microcontroller in factory programming applications
• Resistor noise voltage is 3nV/√Hz typ at (RAB = 1Kohm, f = 1KHz, code = 0x20)
• Operating temperature range from -40°C to +105°C, package style is 8-lead SOT-23

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party