Overview
The ADM3307EARU, produced by Analog Devices Inc., is a highly integrated serial port transceiver designed to meet the EIA-232 standard. This device operates from a single supply voltage ranging from 2.7 V to 3.6 V, making it suitable 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 minimizes power consumption through its Green Idle™ mode. The ADM3307EARU is equipped with five drivers and three receivers, providing full duplex communication capabilities.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Supply Voltage | 2.7 | 3.6 | V | ||
| Maximum Data Rate | 250 | 720 | 920 | kbps | RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, VCC = 3.0 V |
| Receiver Propagation Delay (TPHL, TPLH) | 0.17 | 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 and CMOS I/Os | |||
| Package | 28-TSSOP (0.173, 4.40mm Width) | ||||
| Number of Drivers/Receivers | 5 Drivers / 3 Receivers |
Key Features
- Full compliance with EIA-232 standard
- Single 2.7 V to 3.6 V power supply operation
- On-board charge pump dc-to-dc converter with Green Idle™ mode for low power consumption
- Five drivers and three receivers for full duplex communication
- ESD protection up to ±15 kV on RS-232 and CMOS I/Os
- Shutdown facility with one receiver active (two receivers active for ADM3310E) to monitor peripheral devices
- Suitable for operation in harsh electrical environments
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 operating voltage range of the ADM3307EARU?
The ADM3307EARU operates from a single supply voltage ranging from 2.7 V to 3.6 V. - How many drivers and receivers does the ADM3307EARU have?
The ADM3307EARU features five drivers and three receivers. - What is the maximum data rate of the ADM3307EARU?
The maximum data rate is up to 920 kbps. - Does the ADM3307EARU have ESD protection?
Yes, it has ESD protection up to ±15 kV on RS-232 and CMOS I/Os. - What is the package type of the ADM3307EARU?
The package type is 28-TSSOP (0.173, 4.40mm Width). - Is the ADM3307EARU suitable for automotive applications?
Yes, it is qualified for automotive applications. - How does the Green Idle™ mode benefit the device?
The Green Idle™ mode minimizes power consumption by gating the charge pump oscillator on and off to maintain the output voltage under varying load conditions. - What happens during shutdown mode?
During shutdown, one receiver remains active (two receivers active for ADM3310E), allowing the device to monitor peripheral devices. - What are some common applications of the ADM3307EARU?
Common applications include mobile phone handsets, laptop and notebook computers, printers, modems, and PDAs. - Is the ADM3307EARU obsolete?
According to some sources, the ADM3307EARU is listed as obsolete.
