Overview
The ADM206EAR-REEL, produced by Analog Devices Inc., is a member of the ADM2xx family of RS-232 line drivers and receivers. This component is designed to solve interface problems by meeting the EIA-232-E specifications while operating from a single 5 V supply. It integrates step-up voltage converters and level shifting transmitters and receivers onto the same chip, making it suitable for a wide range of communication applications. The device is known for its low power consumption, high transmission rates, and robust electromagnetic compatibility (EMC) features.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Operating Temperature Range | –40°C to +85°C | Industrial (A Version) |
| Storage Temperature Range | –65°C to +150°C | |
| Lead Temperature (Soldering, 10 sec) | 300°C | |
| ESD Rating (I/O Pins) | ±15 kV (IEC 1000-4-2 Air), ±8 kV (IEC 1000-4-2 Contact) | |
| Input Voltage Range (RS-232 Receiver) | −30 V to +30 V | |
| Input Threshold Low (RS-232 Receiver) | 0.8 V to 1.3 V | |
| Input Threshold High (RS-232 Receiver) | 2.0 V to 2.4 V | |
| Input Hysteresis (RS-232 Receiver) | 0.65 V | |
| Output Voltage Swing (RS-232 Transmitter) | ±5.0 V to ±9.0 V | All transmitter outputs loaded with 3 kΩ to ground |
| Maximum Data Rate | 230 kbps | RL = 3 kΩ to 7 kΩ, CL = 50 pF to 2500 pF |
| Receiver Propagation Delay (TPHL, TPLH) | 0.4 μs to 2 μs | CL = 150 pF |
| Transmitter Propagation Delay (TPHL, TPLH) | 1 μs | RL = 3 kΩ, CL = 2500 pF |
| Transition Region Slew Rate | 8 V/μs | RL = 3 kΩ, CL = 50 pF to 2500 pF |
Key Features
- Compliance with EIA-232-E and CCITT V.28 specifications
- Operation from a single 5 V supply
- Integrated step-up voltage converters and level shifting transmitters and receivers
- Low power consumption (15 mW) and low power shutdown (≤ 5 μW)
- High transmission rates up to 230 kbps
- ESD protection up to ±15 kV (IEC 1000-4-2 air-gap discharge) and ±8 kV (IEC 1000-4-2 contact discharge)
- Radiated immunity of 10 V/m (IEC 1000-4-3)
- Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs
- Shutdown and enable control pins for receiver outputs
- CMOS technology for minimal power dissipation
Applications
- Computers and peripherals
- Modems
- Printers
- Industrial instruments
- Any application requiring RS-232 interface with high reliability and EMC compliance
Q & A
- What is the operating temperature range of the ADM206EAR-REEL?
The operating temperature range is –40°C to +85°C.
- What is the maximum data rate supported by the ADM206EAR-REEL?
The maximum data rate is up to 230 kbps.
- What kind of ESD protection does the ADM206EAR-REEL offer?
The device offers ESD protection up to ±15 kV (IEC 1000-4-2 air-gap discharge) and ±8 kV (IEC 1000-4-2 contact discharge).
- How does the ADM206EAR-REEL generate RS-232 levels from a 5 V supply?
The device uses a charge pump voltage converter to generate ±10 V supply from the 5 V input.
- What are the key features of the receiver inputs on the ADM206EAR-REEL?
The receiver inputs accept RS-232 signal levels, have an input voltage range of −30 V to +30 V, and include internal 5 kΩ pull-down resistors to GND.
- Can the ADM206EAR-REEL be used in electrically harsh environments?
Yes, the device is designed to operate in electrically harsh environments and is immune to high RF field strengths and electrical fast transients.
- What is the power consumption of the ADM206EAR-REEL in normal operation and shutdown mode?
The device consumes 15 mW in normal operation and less than 5 μW in shutdown mode.
- How does the ADM206EAR-REEL ensure noise immunity in receiver outputs?
The device has 0.65 V of hysteresis in the receiver inputs to guard against multiple output transitions in noisy environments.
- What types of applications are the ADM206EAR-REEL typically used in?
The device is typically used in computers, peripherals, modems, printers, and industrial instruments.
- Is the ADM206EAR-REEL RoHS compliant?
Yes, the ADM206EAR-REEL is RoHS compliant.
