Overview
The ADM3312EARUZ-REEL, produced by Analog Devices Inc., is a three-driver/three-receiver serial port transceiver designed to meet the full EIA-232 standard. This device operates from a single power supply as low as +2.7V, making it ideal for battery-powered portable devices. It features an on-board charge pump dc-to-dc converter, which eliminates the need for dual power supplies and generates the necessary positive and negative voltages from the input power supply. The device is suitable for operation in harsh electrical environments and includes ESD protection up to ±15 kV on its RS-232 lines.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Power Supply Voltage | 2.7 | - | 3.6 | V | - |
| Maximum Data Rate | 250 | 460 | 920 | kbps | RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 3.0 V |
| Receiver Propagation Delay (TPHL, TPLH) | 0.3 | - | 1 | µs | CL = 150 pF |
| Receiver Output Enable Time (tER) | 100 | - | - | ns | - |
| Receiver Output Disable Time (tDR) | 300 | - | - | ns | - |
| Transmitter Propagation Delay (TPHL, TPLH) | 500 | - | - | ns | RL = 3 kΩ, CL = 1000 pF |
| Transition Region Slew Rate | 3 | - | 18 | V/µs | - |
| ESD Protection | - | - | ±15 kV | - | IEC 1000-4-2 on RS-232 I/Os |
| Package Type | - | - | - | - | 24-Lead TSSOP, Tape and Reel |
| Operating Temperature Range | -40 | - | 85 | °C | - |
Key Features
- Meets full EIA-232 standard with a single power supply as low as +2.7V to +3.6V.
- On-board charge pump dc-to-dc converter eliminates the need for dual power supplies and generates ±7.25 V from the input power supply.
- Green Idle™ mode minimizes power consumption by gating the charge pump oscillator on and off to maintain output voltage under varying load conditions.
- ESD protection up to ±15 kV on RS-232 I/Os and CMOS I/Os (for ADM3307E).
- Shutdown facility reduces power consumption to 66 nW, with one receiver remaining active (two receivers active for ADM3310E).
- Supports data rates up to 460 kbps.
- Suitable for operation in harsh electrical environments.
- Qualified for automotive applications.
Applications
- Mobile phone handsets and data cables
- Laptop and notebook computers
- Printers and peripherals
- Modems
- PDAs, hand-held devices, and palmtop computers
- Automotive applications
Q & A
- What is the power supply voltage range for the ADM3312EARUZ-REEL?
The power supply voltage range is from 2.7V to 3.6V.
- What is the maximum data rate supported by the ADM3312EARUZ-REEL?
The maximum data rate supported is up to 460 kbps.
- What type of package does the ADM3312EARUZ-REEL come in?
The device comes in a 24-Lead TSSOP package, available in tape and reel format.
- Does the ADM3312EARUZ-REEL have ESD protection?
Yes, it has ESD protection up to ±15 kV on RS-232 I/Os and CMOS I/Os (for ADM3307E).
- What is the operating temperature range for the ADM3312EARUZ-REEL?
The operating temperature range is from -40°C to +85°C.
- Is the ADM3312EARUZ-REEL suitable for automotive applications?
Yes, it is qualified for automotive applications).
- How does the Green Idle™ mode affect power consumption?
The Green Idle™ mode minimizes power consumption by gating the charge pump oscillator on and off to maintain output voltage under varying load conditions).
- What happens to the receivers during shutdown?
During shutdown, one receiver remains active, allowing monitoring of peripheral devices. For the ADM3310E, two receivers remain active).
- What are some common applications of the ADM3312EARUZ-REEL?
Common applications include mobile phone handsets, laptop and notebook computers, printers, modems, and PDAs/hand-held devices).
- Does the ADM3312EARUZ-REEL support high-speed data transmission?
Yes, it supports data rates up to 460 kbps).
