Overview
The ADM1385ARSZ is a high-speed, 2-channel RS-232/V.28 interface device manufactured by Analog Devices Inc. This component operates from a single +3.3 V power supply, making it suitable for a variety of applications where low power consumption is crucial. The ADM1385ARSZ is part of the ADM3202/ADM3222/ADM1385 family, which are known for their low power consumption and shutdown facilities, ideal for battery-powered devices and other portable applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Voltage Range | 3.0 | 3.3 | 5.5 | V | VCC |
| Power Supply Current | 1.3 | 3 | 12 | mA | No load, RL = 3 kΩ to GND |
| Shutdown Supply Current | 0.01 | 0.5 | - | μA | - |
| Logic Input Threshold Low, VINL | 0.8 | - | - | V | TIN |
| Logic Input Threshold High, VINH | 2.0 | - | - | V | TIN |
| CMOS Output Voltage Low, VOL | 0.4 | - | - | V | IOUT = 1.6 mA |
| CMOS Output Voltage High, VOH | - | - | - | V | IOUT = -1.6 mA |
| Data Rate | - | 460 | - | kbps | - |
| Package Type | - | - | - | - | 20-SSOP (0.209", 5.30mm Width) |
Key Features
- Operates from a single +3.3 V power supply, making it suitable for low-power applications.
- Low power consumption with a shutdown facility, ideal for battery-powered devices.
- Meets EIA-232E specifications.
- Supports data rates up to 460 kbps.
- ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins.
- Internal charge pump voltage converter to generate RS-232 levels from a 3.3 V supply.
- CMOS technology to minimize power dissipation.
- Available in 20-lead SSOP package, pin-compatible with the LTC1385 CG.
Applications
- General-purpose RS-232 data links.
- Portable instruments.
- Printers.
- Palmtop computers and PDAs.
- Battery-powered devices where low power consumption is critical.
Q & A
- What is the operating voltage range of the ADM1385ARSZ?
The operating voltage range is 3.0 V to 5.5 V, with a typical voltage of 3.3 V.
- What is the maximum data rate supported by the ADM1385ARSZ?
The maximum data rate supported is up to 460 kbps.
- What type of package is the ADM1385ARSZ available in?
The ADM1385ARSZ is available in a 20-lead SSOP package.
- Does the ADM1385ARSZ have ESD protection?
Yes, it has ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins.
- What are the typical applications of the ADM1385ARSZ?
Typical applications include general-purpose RS-232 data links, portable instruments, printers, and palmtop computers/PDAs.
- How does the ADM1385ARSZ generate RS-232 levels from a 3.3 V supply?
It uses an internal charge pump voltage converter to generate the necessary RS-232 levels.
- Is the ADM1385ARSZ RoHS compliant?
Yes, the ADM1385ARSZ is RoHS compliant.
- What is the shutdown supply current of the ADM1385ARSZ?
The shutdown supply current is typically 0.01 μA to 0.5 μA.
- Is the ADM1385ARSZ pin-compatible with other devices?
Yes, it is pin-compatible with the LTC1385 CG.
- What technology is used to minimize power dissipation in the ADM1385ARSZ?
CMOS technology is used to minimize power dissipation.
