Overview
The ADM3315EARUZ from Analog Devices Inc. is a 15 kV ESD protected, 2.7 V to 3.6 V serial port transceiver designed for low-power and high-reliability applications. This device features an on-board charge pump dc-to-dc converter, eliminating the need for dual power supplies. It is particularly suited for battery-powered portable devices due to its low power consumption and green idle mode operation. The ADM3315EARUZ is a low current version of the ADM3312E, making it ideal for various portable and handheld device applications.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 2.7 V to 3.6 V |
| Operating Temperature Range | −40°C to +85°C |
| ESD Protection | ±15 kV (Contact and Air Gap), ±15 kV (HBM) |
| Data Rate | Up to 460 kb/s |
| Receiver Input Resistance | 22 kΩ |
| Transmitter Output Voltage Swing | ±5.0 V to ±5.5 V |
| Transmitter Output Resistance | 300 Ω |
| Shutdown Current | 20 nA |
| Package Type | 24-Lead TSSOP |
Key Features
- Full RS-232 compliance with data rates up to 460 kb/s
- On-board charge pump dc-to-dc converter for single supply operation
- Green idle mode to minimize power consumption
- Low power shutdown mode with one receiver active (20 nA current)
- High ESD protection: ±15 kV on RS-232 lines and ±15 kV on CMOS and RS-232 I/Os
- Low EMI and high slew rate (18 V/µs)
- Operates with 3V logic and supports 0.1µF to 1µF charge pump capacitors
Applications
- Mobile phone handsets and data cables
- Laptop and notebook computers
- Printers and peripherals
- Modems
- PDAs, hand-held devices, and palmtop computers
Q & A
- What is the operating voltage range of the ADM3315EARUZ?
The ADM3315EARUZ operates within a supply voltage range of 2.7 V to 3.6 V.
- What is the maximum data rate supported by the ADM3315EARUZ?
The device supports data rates up to 460 kb/s.
- What level of ESD protection does the ADM3315EARUZ offer?
The device offers ±15 kV ESD protection on RS-232 lines and ±15 kV on CMOS and RS-232 I/Os.
- 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 is the shutdown current of the ADM3315EARUZ?
The shutdown current is 20 nA, with one receiver remaining active during shutdown.
- What type of package is the ADM3315EARUZ available in?
The device is available in a 24-Lead TSSOP package.
- What is the receiver input resistance of the ADM3315EARUZ?
The receiver input resistance is 22 kΩ.
- What are the typical applications of the ADM3315EARUZ?
Typical applications include mobile phone handsets, laptop and notebook computers, printers, modems, PDAs, and other hand-held devices.
- Does the ADM3315EARUZ support full RS-232 compliance?
Yes, the device is fully compliant with RS-232 standards.
- What is the slew rate of the ADM3315EARUZ?
The slew rate is 18 V/µs.
