MAX5386

The MAX5386/MAX5388 dual, 256-tap, volatile, low-voltage linear taper digital potentiometers offer three end-to-end resistance values of 10kI, 50kI, and 100kI. Operating from a single +2.6V to +5.5V power supply these devices provide a low 35ppm/°C end-to-end temperature coefficient. The devices feature an SPIK interface. The MAX5386/MAX5388 are specified over an extended -40°C to +125°C temperature range and are available in 16-pin, 3mm x 3mm TQFN or 10-pin, 3mm x 5mm FMAXM packages, respectively. The MAX5386 includes two digital potentiometers in a voltage-divider configuration. The MAX5388 includes one digital potentiometer in a voltage-divider configuration and one digital potentiometer in a variable-resistor configuration. The small package size, low supply voltage, low supply current, and automotive temperature range of the MAX5386/MAX5388 make the devices uniquely suitable for the portable consumer market, battery backup industrial applications, and the automotive market.

The features of MAX5386 can be summarized as (1)dual, 256-tap, linear taper positions; (2)single +2.6V to +5.5V supply operation; (3)low (< 1A)quiescent supply current; (4)10kI, 50kI, 100kI end-to-end resistance values; (5)SPI-compatible interface; (6)power-on sets wiper to midscale; (7)-40°C to +125°C operating temperature range.

The absolute maximum ratings of MAX5386 are (1)VDD to GND: -0.3V to +6V; (2)H_, W_, L_ to GND: -0.3V to the lower of (VDD + 0.3V)and +6V; (3)all other pins to GND: -0.3V to +6V; (4)continuous current in to H_, W_, and L_ MAX5386L/MAX5388L: ±5mA / MAX5386M/MAX5388M: ±2mA / MAX5386N/MAX5388N: ±1mA; (5)continuous power dissipation (TA = +70°C)16 TQFN (derate 14.7mW/°C above +70°C): 1176.5mW / 10 FMAX (derate 8.8mW/°C above +70°C): 707.3mW; (6)operating temperature range: -40°C to +125°C; (7)junction temperature: +150°C; (8)storage temperature range: -65°C to +150°C; (9)lead temperature (soldering, 10s): +300°C.