Industry’s first 5kΩ digipot with 36V operating voltage

In addition, they provide 10V to 36V analogue operation and 1.8V to 5.5V digital operation, for systems requiring wide signal swings or high power-supply voltages.  The MCP45HV31-51 digipots support both 7-bit and 8-bit resistor configurations, and a high terminal/wiper current, including the ability to sink/source up to 25 mA on all terminal pins for driving larger loads.  These features, combined with an extended temperature range of -40°C to +125°C, make the MCP45HV31-51 well suited for a broad range of high-voltage and high-temperature applications, including those in the industrial, automotive and audio markets.

The MCP45HV31’s 7-bit resistor network resolution enables 127 resistors and 128 taps, while the MCP45HV51’s 8-bit configuration supports 255 resistors and 256 taps.  Additionally, both digipots provide RAB resistance options of 5, 10, 50 and 100 kohms.  Both devices also feature a 1 µA typical serial-interface inactive current, and a 2 MHz typical bandwidth operation (-3 dB) at the 5 kohm resistance level.

Microchip’s 20-Pin TSSOP and SSOP Evaluation Board (TSSOP20EV) allows system designers to quickly evaluate the operation of the new MCP45HV31-51 digipots, in the 14-pin TSSOP package option.

The MCP45HV31 and MCP45HV51 digital potentiometers are available today for samples and volume production, in 14-pin TSSOP and 20-pin, 5x5 mm QFN packages.