ADM660ARUZ-REEL7

Overview

The ADM660ARUZ-REEL7 is a CMOS charge-pumped inverter integrated circuit manufactured by Analog Devices Inc. It operates within an input voltage range of 1.5 V to 7 V, providing output voltages from -7 V to -1.5 V or doubled positive outputs from 5 V to 14 V. The device delivers up to 100 mA of output current with a typical static current consumption of 600 µA. It supports selectable switching frequencies of 25 kHz and 120 kHz to optimize external capacitor sizing. Packaged in an SOIC-8 surface-mount format, it functions as a single-output voltage converter suitable for generating negative supply rails.

Feature Summary

• Enables inversion of input power supply voltage to create negative rails or doubling for higher positive voltages
• Utilizes only two small external capacitors to minimize component count and board space
• Offers selectable charge pump operating frequencies to balance between static current consumption and required capacitance values

Applications

• Generating negative supply rails in single-supply systems
• Powering RS-232 interface circuits requiring dual polarity supplies
• Providing elevated voltage levels for specific analog signal processing stages

Procurement Notes

Verify the specific suffix REEL7 corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the SOIC-8 package variant aligns with the designated footprint on the target printed circuit board. Ensure compatibility with the intended operating temperature range of -40°C to +85°C for the specific application environment.

Selection Notes

Select this component when a compact solution is needed to generate inverted or doubled voltages without magnetic components. Consider the trade-off between the 25 kHz and 120 kHz frequency options based on available board space for external capacitors versus the requirement for minimal quiescent current draw during operation.

Part Context

This part belongs to the ADM660 series of CMOS voltage converters designed for low-power applications. It serves as a direct pin-compatible upgrade for legacy devices such as the MAX660, MAX665, and ICL7660, facilitating easier migration to modern manufacturing processes while maintaining similar functional characteristics and performance profiles.

Replacement Considerations

Public documentation identifies the ADM8660 as a related variant featuring a shutdown pin instead of oscillator control. Verify if the absence of a shutdown feature in the ADM660 impacts system power management requirements before substituting.