AD5273BRJZ1-REEL7

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.

• Resistance setting low cost alternative over EEMEM
• Unlimited adjustments prior to OTP activation
• End-to-end terminal resistance is 1Kohm
• I²C-compatible digital interface, low operating voltage range from 2.7V to 5.5V
• Computer software2 replaces microcontroller in factory programming applications
• Supply current is 5µA maximum at (VIH = 5V or VIL = 0V)
• Adjustment settling time is 5µs typical at (VDD = 2.7V to 5.5V)
• 6000KHz typical -3dB bandwidth at (VDD = 2.7V to 5.5V)
• Resistor noise voltage is 3nV/√Hz typical at (RAB = 1Kohm, f = 1KHz, code = 0x20)
• Operating temperature is -40°C to +105°C, package style is 8-lead SOT-23

附註

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