Overview
The ADM237LANZ is a member of the ADM2xxL family of RS-232 line drivers and receivers produced by Analog Devices Inc. This component is specifically designed for EIA-232-E and V.28 communications interfaces, particularly in applications where 12 V is not available. The ADM237LANZ operates from a single 5 V supply and includes internal charge pump voltage converters to generate the ±10 V required for RS-232 output levels.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 5 V |
| RS-232 Input Voltage Range | –30 V to +30 V |
| RS-232 Input Threshold Low | 0.8 V to 1.2 V |
| RS-232 Input Threshold High | 1.6 V to 2.4 V |
| RS-232 Input Hysteresis | 0.65 V |
| RS-232 Input Resistance | 3 kΩ to 7 kΩ |
| TTL/CMOS Output Voltage Low | 0.4 V |
| TTL/CMOS Output Voltage High | 3.5 V |
| Shutdown Supply Current | ≤ 1 µA |
| Package Type | 24-pin PDIP |
Key Features
- Operates from a single 5 V supply with internal charge pump voltage converters to generate ±10 V for RS-232 output levels.
- Low power shutdown mode reducing power dissipation to less than 5 µW, ideal for battery-powered equipment.
- No external components required for operation, making it useful in space-critical applications.
- Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and internal 5 kΩ pull-down resistors on RS-232 inputs.
- Latch-up free and supports temperatures from 0°C to 85°C.
Applications
- Computers and peripherals.
- Modems and printers.
- Industrial instruments and equipment.
- Battery-powered devices due to its low power shutdown mode.
Q & A
- What is the primary function of the ADM237LANZ?
The ADM237LANZ is a quint transmitter and triple receiver for RS-232 communications interfaces.
- What is the operating supply voltage for the ADM237LANZ?
The ADM237LANZ operates from a single 5 V supply.
- What are the RS-232 input voltage ranges for the ADM237LANZ?
The RS-232 input voltage range is from –30 V to +30 V.
- Does the ADM237LANZ require external components for operation?
No, the ADM237LANZ does not require any external components for operation.
- What is the shutdown supply current of the ADM237LANZ?
The shutdown supply current is less than 1 µA.
- What is the package type of the ADM237LANZ?
The package type is a 24-pin PDIP.
- What are the typical applications of the ADM237LANZ?
Typical applications include computers, peripherals, modems, printers, and industrial instruments.
- Is the ADM237LANZ suitable for battery-powered equipment?
- What is the temperature range for the ADM237LANZ?
The operating temperature range is from 0°C to 85°C.
- Does the ADM237LANZ have internal pull-up and pull-down resistors?
