Overview
The ADM3311EARU is a serial port transceiver IC designed by Analog Devices Inc. This device is part of the ADM3311E series and is optimized for serial port applications in various electronic devices. It features a built-in charge pump dc-to-dc converter, eliminating the need for dual power supplies, and is fabricated using CMOS technology to minimize power consumption. The ADM3311EARU is particularly suited for battery-powered portable devices due to its low power consumption and shutdown mode capabilities.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Shutdown Supply Current | 0.02 μA (typ), 1 μA (max) | μA | |
| Input Pull-Up Current (TIN = GND) | 10 μA | μA | |
| Input Logic Threshold High, VINH (TIN, EN, SHDN) | 2.0 V (min) | V | |
| CMOS Output Voltage Low, VOL (IOUT = 1.6 mA) | 0.4 V (max) | V | |
| CMOS Output Leakage Current (EN = VCC, 0 V < ROUT < VCC) | 0.05 μA (typ) | μA | |
| EIA-232 Input Voltage Range | -25 V to 25 V | V | |
| EIA-232 Input Resistance | 5 kΩ (typ) | kΩ | |
| RS-232 Output Short-Circuit Current | ±15 mA (typ) | mA | |
| Data Rate | 460 kbps | kbps | |
| Receiver Hysteresis | 140 mV | mV | |
| Package | 28-TSSOP (0.173, 4.40mm Width) | ||
| Number of Drivers | 3 | ||
| Number of Receivers | 5 | ||
| VCC Power Supply Current | 0.45 mA to 1 mA (no load, VCC = 3.0 V to 3.6 V) | mA |
Key Features
- On-board charge pump dc-to-dc converter, eliminating the need for dual power supplies.
- Full RS-232 compliance with a data rate of up to 460 kbps.
- ESD protection up to ±15 kV on RS-232 lines.
- Low power consumption with a shutdown facility that reduces power consumption to 66 nW.
- One receiver remains active in shutdown mode, allowing monitoring of peripheral devices.
- CMOS technology for minimal power consumption.
- Operating voltage range of 2.7 V to 3.6 V.
Applications
- Mobile phone handsets and data cables.
- Laptop and notebook computers.
- Printers and peripherals.
- Modems.
- PDAs, hand-held devices, and palmtop computers).
Q & A
- What is the primary function of the ADM3311EARU?
The ADM3311EARU is a serial port transceiver IC designed for serial port applications in various electronic devices.
- What is the operating voltage range of the ADM3311EARU?
The operating voltage range is from 2.7 V to 3.6 V.
- How many drivers and receivers does the ADM3311EARU have?
The device has 3 drivers and 5 receivers.
- What is the data rate of the ADM3311EARU?
The data rate is up to 460 kbps.
- Does the ADM3311EARU have ESD protection?
Yes, it has ESD protection up to ±15 kV on RS-232 lines.
- What is the package type of the ADM3311EARU?
The package type is 28-TSSOP (0.173, 4.40mm Width).
- What is the shutdown supply current of the ADM3311EARU?
The shutdown supply current is 0.02 μA (typ) and 1 μA (max).
- Can the ADM3311EARU be used in harsh electrical environments?
Yes, it is suitable for operation in harsh electrical environments.
- What is the RS-232 output short-circuit current of the ADM3311EARU?
The RS-232 output short-circuit current is ±15 mA (typ).
- Is the ADM3311EARU qualified for automotive applications?
Yes, it is qualified for automotive applications.
