ADM3312EARUZ-REEL from Analog Devices Inc.

The ADM3312EARUZ-REEL is a high-performance, low-power, 3.3V RS-232 line driver/receiver from the esteemed manufacturer Analog Devices Inc. This IC is designed to operate at a 3.3V power supply, making it suitable for battery-powered, portable, or handheld applications. It is part of Analog Devices' portfolio of interface ICs, which are known for their reliability and performance.

This device comes in a tape and reel package, ideal for automated assembly processes, and is specified over the industrial temperature range of -40°C to +85°C. The ADM3312EARUZ-REEL features two drivers and two receivers, providing the necessary level translation between RS-232 signal levels and the lower voltage digital logic.

The innovative design of the ADM3312EARUZ-REEL includes a proprietary low-dropout transmitter output stage, which delivers true RS-232 performance from a 3.3V power supply with a dual charge pump. The charge pump requires only four small 0.1 µF external capacitors for operation, reducing the board space and component count.

This device also includes a shutdown feature that powers down the on-chip power-supply and drivers while allowing the receivers to remain active, helping to conserve power in idle periods. The ADM3312EARUZ-REEL is suitable for a wide range of applications, including portable or compact devices with RS-232 interfaces such as GPS receivers, barcode scanners, and medical equipment.

Key features of the ADM3312EARUZ-REEL include:

• Meets EIA-232E specifications at 3.3V
• 250 kbps data rate
• On-chip voltage converters require only four external capacitors
• Power-down feature reduces power consumption
• Industrial temperature range: -40°C to +85°C

With its combination of performance, power efficiency, and compact packaging, the ADM3312EARUZ-REEL is an exemplary solution for designers looking to integrate RS-232 communication capabilities into their low-voltage applications.