Overview
The ADM3202ARU-REEL7, produced by Analog Devices Inc., is a high-speed, 2-channel RS-232/V.28 interface device. It operates from a single 3.3 V power supply, making it suitable for a wide range of applications, especially in battery-powered portable instruments. This transceiver is designed to meet EIA-232E specifications and is an upgrade for MAX3222/MAX3232 and LTC1385 devices. It features low power consumption and a shutdown facility, which enhances its efficiency in power-sensitive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage | 3.3 V ± 0.3 V | V |
| Maximum Data Rate | 460 kbps | kbps |
| Transmitter Propagation Delay | 0.3 - 1.2 μs | μs |
| Receiver Propagation Delay (TPLH/TPHL) | 0.4 - 1 μs | μs |
| Output Voltage Swing | ±6 V | V |
| ESD Protection (ADM3202 only) | ±8 kV (contact discharge), ±15 kV (air gap discharge) | kV |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 16-Lead Thin Shrink Small Outline Package (TSSOP) |
Key Features
- High-speed data transmission up to 460 kbps, exceeding EIA/RS-232E specifications.
- Low power consumption with a shutdown facility (ADM3222 and ADM1385 models).
- Operates from a single 3.3 V power supply using a charge pump voltage converter.
- ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins (ADM3202 only).
- Schmitt-trigger inputs with a hysteresis level of 0.4 V for error-free reception.
- Internal 5 kΩ pull-down resistors on each RS-232 input.
- Protection against overvoltages up to ±30 V on the receiver inputs.
Applications
- General-purpose RS-232 data links.
- Portable instruments.
- Printers.
- Palmtop computers and PDAs.
- ISDN modem standards requiring high data rates.
Q & A
- What is the maximum data rate supported by the ADM3202ARU-REEL7?
The ADM3202ARU-REEL7 supports data rates up to 460 kbps.
- What is the power supply voltage for the ADM3202ARU-REEL7?
The device operates from a single 3.3 V power supply.
- Does the ADM3202ARU-REEL7 have ESD protection?
Yes, the ADM3202 model has ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins.
- What is the operating temperature range of the ADM3202ARU-REEL7?
The operating temperature range is -40°C to +85°C.
- What type of package is the ADM3202ARU-REEL7 available in?
The device is available in a 16-Lead Thin Shrink Small Outline Package (TSSOP).
- How does the charge pump voltage converter work in the ADM3202ARU-REEL7?
The charge pump voltage converter generates a ±6.6 V supply from the 3.3 V input using a switched capacitor technique.
- What are the key applications of the ADM3202ARU-REEL7?
Key applications include general-purpose RS-232 data links, portable instruments, printers, palmtop computers, and PDAs.
- Does the ADM3202ARU-REEL7 have a shutdown facility?
Yes, the ADM3222 and ADM1385 models have a shutdown facility for low power consumption.
- What is the output voltage swing of the ADM3202ARU-REEL7?
The output voltage swing is typically ±6 V.
- How are the receiver inputs protected in the ADM3202ARU-REEL7?
The receiver inputs are protected against overvoltages up to ±30 V and have internal 5 kΩ pull-down resistors.
