Overview
The ADM101EARMZ from Analog Devices Inc. is a single-channel RS-232 driver and receiver, part of the Craft Port series. This device is designed for portable applications and operates from a single 5 V supply. It features a highly efficient charge-pump voltage inverter that generates an on-chip −5 V supply, eliminating the need for a negative power supply. This allows for RS-232 compatible output levels using small 0.1 μF charge pump capacitors. The ADM101EARMZ is known for its low power consumption, with an ICC of 500 μA and an ultralow power shutdown mode of 1 μA. It is packaged in a 10-lead MSOP package and is qualified for automotive applications, making it suitable for a variety of demanding environments.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage (VCC) | 4.5 V to 5.5 V | |
| Transmission Rate | 460 kbit/s | |
| Output Voltage Swing | ±4.2 V | With 5 V supply |
| Power Consumption (ICC) | 500 μA | |
| Shutdown Mode Current | 1 μA | |
| Propagation Delay | 0.25 μs | RS-232 to TTL |
| Instantaneous Slew Rate | 25 V/μs | CL = 10 pF, RL = 3 kΩ - 7 kΩ, TA = 25°C |
| Transition Region Slew Rate | 11 V/μs | RL = 3 kΩ, CL = 1000 pF |
| Output Resistance | 300 Ω | VCC = 0 V, VOUT = ±2 V |
| Operating Temperature Range | −40°C to +85°C | Industrial (A Version) |
| Storage Temperature Range | −65°C to +150°C |
Key Features
- Single-channel RS-232 driver and receiver
- Operates from a single 5 V supply
- Highly efficient charge-pump voltage inverter generating −5 V on-chip
- Compatible with RS-232 input/output levels using 0.1 μF charge pump capacitors
- Low power consumption: 500 μA ICC and 1 μA in shutdown mode
- 10-lead MSOP package
- Qualified for automotive applications
- Ultralow power shutdown mode
- High transmission rate of 460 kbit/s
Applications
- Mobile Telephones
- Palmtop Computers
- PDAs
- Portable Instrumentation
- GPS Receivers
- Interconnection between switches and computers
- Copper connection networks
- LAN, SAN, WAN (local, storage, work area networks)
- Wireless multimedia centers in smart homes
- IP cameras
- Automation systems
- Carrier phase observations
- Satellite ground stations
- Remote controls
Q & A
- What is the primary function of the ADM101EARMZ?
The ADM101EARMZ is a single-channel RS-232 driver and receiver designed for portable applications.
- What is the operating voltage range of the ADM101EARMZ?
The device operates from a single 5 V supply, with a range of 4.5 V to 5.5 V.
- What is the transmission rate of the ADM101EARMZ?
The transmission rate is 460 kbit/s.
- What is the power consumption of the ADM101EARMZ in normal operation and shutdown mode?
In normal operation, the ICC is 500 μA, and in shutdown mode, it is 1 μA.
- What package type is the ADM101EARMZ available in?
The device is packaged in a 10-lead MSOP package.
- Is the ADM101EARMZ qualified for automotive applications?
- What is the output voltage swing of the ADM101EARMZ with a 5 V supply?
The output voltage swing is ±4.2 V with a 5 V supply.
- What is the propagation delay of the ADM101EARMZ?
The propagation delay is 0.25 μs from RS-232 to TTL.
- What are some typical applications of the ADM101EARMZ?
Typical applications include mobile telephones, palmtop computers, PDAs, portable instrumentation, GPS receivers, and more.
- What is the operating temperature range of the ADM101EARMZ?
The operating temperature range is −40°C to +85°C for the industrial version.
- What is the storage temperature range of the ADM101EARMZ?
The storage temperature range is −65°C to +150°C.
