Overview
The SN75ALS173NS is a monolithic quadruple differential line receiver with 3-state outputs, designed and manufactured by Texas Instruments. This device is engineered to meet the requirements of various industry standards, including ANSI EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and several ITU recommendations such as V.10, V.11, X.26, and X.27. Utilizing advanced low-power Schottky technology, the SN75ALS173NS offers high-speed performance without significant power consumption. The device features four receivers with an ORed pair of enables, allowing either a high or low enable signal to activate all receivers. It is characterized for operation over a temperature range of 0°C to 70°C, making it suitable for a variety of applications in noisy environments.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.75 | 5 | 5.25 | V |
| Common-mode Input Voltage (VIC) | -12 | 12 | V | |
| Differential Input Voltage (VID) | -12 | 12 | V | |
| Input Sensitivity | ±200 mV | mV | ||
| Input Hysteresis | 50 mV (typical) | mV | ||
| Input Impedance | 12 kΩ (minimum) | kΩ | ||
| Supply Current (ICC) | 16 mA (outputs enabled) | 18 mA (outputs disabled) | 27 mA (maximum) | mA |
| Operating Temperature Range (TA) | 0°C | 70°C | °C | |
| Package Type | SOP (NS) | |||
| Pins | 16 |
Key Features
- Meets or exceeds the requirements of ANSI EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and several ITU recommendations (V.10, V.11, X.26, and X.27).
- Designed for multipoint bus transmission on long bus lines in noisy environments.
- 3-State Outputs.
- Common-mode input voltage range of –12 V to 12 V.
- Input sensitivity: ±200 mV.
- Input hysteresis: 50 mV typical.
- High input impedance: 12 kΩ minimum.
- Operates from a single 5-V supply.
- Low supply-current requirement: 27 mA maximum.
Applications
- Motor drives.
- Factory automation and control.
- Multipoint bus transmission systems.
- Noisy industrial environments requiring robust communication interfaces.
Q & A
- What are the primary standards that the SN75ALS173NS complies with?
The SN75ALS173NS meets or exceeds the requirements of ANSI EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and several ITU recommendations (V.10, V.11, X.26, and X.27).
- What is the operating temperature range of the SN75ALS173NS?
The device operates from 0°C to 70°C.
- What is the supply voltage range for the SN75ALS173NS?
The supply voltage range is from 4.75 V to 5.25 V).
- What is the input sensitivity of the SN75ALS173NS?
The input sensitivity is ±200 mV).
- What is the common-mode input voltage range of the SN75ALS173NS?
The common-mode input voltage range is –12 V to 12 V).
- How many receivers does the SN75ALS173NS have, and how are they enabled?
The device has four receivers, and they are enabled by an ORed pair of enables (either G high or G low enables all receivers)).
- What is the maximum supply current of the SN75ALS173NS?
The maximum supply current is 27 mA).
- What are some typical applications of the SN75ALS173NS?
Typical applications include motor drives, factory automation and control, and multipoint bus transmission systems in noisy environments).
- Is the SN75ALS173NS still in production?
No, the SN75ALS173NS is obsolete and has been discontinued by Texas Instruments).
- What package types are available for the SN75ALS173NS?
The device is available in SOP (NS) and PDIP (N) packages).
