MAX1259CPE+

Overview

The MAX1259CPE+ is a battery management integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 30V and supports dual supplies from ±4.5V to ±20V. The device features two channels, each configured as a single-pole quadruple-throw (SP4T) switch. It utilizes a 16-pin PDIP package with a standard lead pitch of 0.300 inches (7.62mm). The component is rated for commercial operating temperatures between 0°C and +70°C. Key electrical characteristics include a maximum on-resistance of 400 Ohms and a channel-to-channel matching of 4 Ohms. Leakage current is specified at a maximum of 20pA, with charge injection at 1.5pC. Switching times are limited to 500ns for both turn-on and turn-off periods.

Feature Summary

• Integrates two independent SP4T analog switches for signal routing applications
• Provides high isolation with low leakage current specifications
• Ensures signal integrity through tight channel-to-channel resistance matching
• Supports wide single and dual power supply voltage ranges

Applications

• Signal multiplexing in data acquisition systems
• Test and measurement equipment signal routing
• Industrial process control signal switching
• Communication system interface protection

Procurement Notes

Verify the specific suffix CPE+ against official manufacturer documentation to confirm the PDIP package and commercial temperature grade. Confirm RoHS compliance status directly with the supplier or manufacturer records, as legacy parts may have varying environmental declarations. Check for obsolescence notices or product discontinuance notifications prior to finalizing procurement plans to ensure long-term availability.

Selection Notes

Select this component when designing circuits requiring multiple independent signal paths with moderate speed requirements. The 400 Ohm on-resistance is suitable for general-purpose analog signal switching rather than high-frequency RF applications. Ensure the design accommodates the 16-pin DIP footprint if through-hole assembly is required. Verify that the input signal levels remain within the specified supply voltage limits to prevent damage to the internal switch structures.

Part Context

This part belongs to the MAX338/MAX339 family of fault-tolerant analog switches. These devices are designed to withstand overvoltage conditions beyond the supply rails, making them robust for industrial environments. The MAX1259 variant specifically offers SP4T configuration, providing greater connectivity options compared to simpler SPST or SPDT switches in the same series.

Replacement Considerations

Direct substitutes include the MAX339CPE+. Verify pinout compatibility and electrical parameter alignment before substitution.