Overview
The ADM3307EACP, produced by Analog Devices Inc., is a highly integrated RS-232 serial port transceiver designed to operate with a single power supply ranging from 2.7 V to 3.6 V. This device fully complies with the EIA-232 standard and features an on-board charge pump dc-to-dc converter, which eliminates the need for dual power supplies. The converter generates positive and negative supplies from the input power, making it ideal for battery-powered portable devices. The ADM3307EACP is part of the ADM3307E series, which includes several variants with similar functionalities but differing in the number of active receivers during shutdown.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating 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 = 2.7 V to 3.0 V |
| Receiver Propagation Delay (TPHL, TPLH) | 0.3 | 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 and CMOS I/Os |
| Shutdown Power Consumption | - | - | 66 nW | - | - |
Key Features
- Full compliance with EIA-232 standard
- Single power supply operation from 2.7 V to 3.6 V
- On-board charge pump dc-to-dc converter for generating positive and negative supplies
- Green Idle™ mode to minimize power consumption
- ESD protection up to ±15 kV on RS-232 and CMOS I/Os
- Shutdown facility with one receiver active to monitor peripheral devices
- Ideal for battery-powered portable devices due to low power consumption
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 ADM3307EACP?
The ADM3307EACP operates with a single power supply ranging from 2.7 V to 3.6 V. - What is the maximum data rate supported by the ADM3307EACP?
The maximum data rate supported is up to 920 kbps. - Does the ADM3307EACP have ESD protection?
Yes, it has ESD protection up to ±15 kV on RS-232 and CMOS I/Os. - What is the power consumption in shutdown mode?
The power consumption in shutdown mode is 66 nW. - How many drivers and receivers does the ADM3307EACP have?
The ADM3307EACP has five drivers and three receivers. - Is the ADM3307EACP suitable for automotive applications?
Yes, it is qualified for automotive applications. - What is the purpose of the Green Idle™ mode?
The Green Idle™ mode minimizes power consumption by gating the charge pump oscillator on and off to maintain the output voltage. - Can the ADM3307EACP be used in battery-powered devices?
Yes, it is ideal for battery-powered portable devices due to its low power consumption. - How many receivers remain active during shutdown?
One receiver remains active during shutdown to monitor peripheral devices. - What type of package is the ADM3307EACP available in?
The ADM3307EACP is available in a 32-lead LFCSP package.
