DS18030-050

Digital Potentiometers Overview

The DS18030-050 is an addressable dual digital potentiometer featuring two independently controlled 256-position resistors with a nominal resistance of 50 kΩ. It operates on a 2-wire serial interface (I²C-compatible) and utilizes three hardware address pins to allow up to eight devices on a single bus. The device is housed in a 16-pin DIP package and functions within an industrial temperature range of -40°C to +85°C. Power consumption is ultra-low, with active supply current typically at 200 µA. The wiper positions are volatile and reset to the low-end terminal upon power-up.

Digital Potentiometers Feature Summary

• Dual 256-position digitally controlled potentiometers
• Addressable via 3 hardware pins for multi-device bus sharing
• 2-wire serial interface (SDA/SCL)
• Volatile memory architecture

Digital Potentiometers Applications

• Industrial control systems requiring adjustable gain or bias
• Multi-channel signal conditioning circuits
• Embedded systems with limited I/O pin availability

Digital Potentiometers Procurement Notes

Verify the specific package variant during sourcing, as the DS1803 family includes TSSOP and SOIC options alongside the DIP. Confirm lead-free status if required, noting that suffixes like '+' indicate RoHS compliance in related part numbers. Check for obsolescence status as older Maxim Integrated parts may have limited availability.

Digital Potentiometers Selection Notes

Select this component when multiple independent analog adjustments are needed without mechanical potentiometers. Ensure the system supports a 2-wire serial master controller. Verify that volatile storage meets application requirements, as position data is lost during power cycles. Compare against non-volatile alternatives like the DS1804 if power-down retention is critical.

Digital Potentiometers Part Context

This part belongs to the DS1803 series of addressable digital potentiometers from Analog Devices/Maxim Integrated. It shares the same core functionality and interface as the DS1803E (TSSOP) and DS1803Z (SOIC) variants but is specifically packaged in a 16-pin DIP format. The '050' suffix denotes the 50 kΩ total resistance value.

Digital Potentiometers Replacement Considerations

Direct physical replacements include DS1803E-050 (TSSOP) and DS1803Z-050 (SOIC), though pinouts differ. For non-volatile requirements, consider the DS1804 series. No other direct pin-compatible substitutes are documented.