MCP47A1T-A1E/LTY

Digital To Analog Converters Overview

The MCP47A1T-A1E/LTY is a volatile, 6-bit digital potentiometer with a buffered output manufactured by Microchip Technology. It features an I2C serial interface for wiper setting control and supports SMBus 2.0 protocols. The device operates within a wide voltage range of 1.8V to 5.5V and includes brown-out reset protection with a power-on default mid-scale setting. Key electrical parameters include a typical static current of 90 µA, a settling time of 15 µs, and a bandwidth of 100 kHz (-3 dB). It utilizes a 20 kΩ (typical) VREF pull-down resistance and offers 65 taps across 64 resistors. The component is housed in a compact SC70-6 package and is qualified for extended industrial temperature ranges from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Integrated buffered output amplifier providing direct drive capability without external components.
• I2C compatible serial interface supporting standard and fast mode operations up to 400 kHz.
• Brown-out reset mechanism ensures predictable mid-scale initialization upon power-up.
• Low-power architecture designed for battery-operated applications with minimal static current consumption.

Digital To Analog Converters Applications

• Set point or offset trimming in sensor signal conditioning circuits.
• Cost-sensitive replacement for mechanical trim pots in calibration systems.
• Voltage reference adjustment in data acquisition modules.

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'LTY' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and lead-free status. Ensure that the A1 variant matches the required slave address configuration for your system design. Cross-reference the datasheet revision history to confirm compatibility with your firmware implementation before finalizing procurement orders.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, low-resolution digital adjustment is required in space-constrained designs. The SC70-6 package is suitable for high-density PCB layouts. Consider the volatile nature of the memory; if non-volatile storage is necessary for power-loss retention, alternative models such as the MCP47 series should be evaluated instead.

Digital To Analog Converters Part Context

This part belongs to the MCP47A1 family of 6-bit digital potentiometers. It shares architectural similarities with other MCP47 devices but differs in resolution and memory type. The MCP47A1 serves as a bridge between simple analog trimpots and higher-resolution DACs, offering precise digital control over resistance ratios via a standard two-wire interface.

Digital To Analog Converters Replacement Considerations

Direct replacements include the MCP47A1T-E/SC70-6 for tube packaging variants. For non-volatile requirements, consider the MCP4706 or MCP4716 series. Ensure pinout compatibility and verify that the I2C slave addresses match the system bus configuration when substituting.