Overview
The SN75182NG4, produced by Texas Instruments, is a dual differential line receiver designed to sense small differential signals in the presence of large common-mode noise. This device is part of the SN75182 series, which is characterized for operation from 0°C to 70°C. It provides TTL-compatible output signals based on the polarity of the differential input voltage, making it suitable for various communication and signal processing applications.
The SN75182NG4 is obsolete and not recommended for new designs, but it remains relevant for existing systems and maintenance purposes. It features individual channel strobes, built-in optional line-termination resistors, and individual frequency response controls, enhancing its versatility and noise immunity.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC | 4.5 | 5 | 5.5 | V |
| Common-Mode Input Voltage, VIC | ±15 | ±15 | V | |
| High-Level Strobe Input Voltage, VIH(STRB) | 2.1 | 5.5 | V | |
| Low-Level Strobe Input Voltage, VIL(STRB) | 0 | 0.9 | V | |
| High-Level Output Current, IOH | -400 | µA | ||
| Low-Level Output Current, IOL | 16 | mA | ||
| Operating Free-Air Temperature, TA | 0 | 70 | °C | |
| Propagation Delay Time, tPLH(D) | 18 | 40 | ns | |
| Propagation Delay Time, tPHL(D) | 31 | 45 | ns |
Key Features
- Dual differential line operation with TTL-compatible output signals.
- Single 5-V supply operation.
- ±15-V common-mode input voltage range and ±15-V differential input voltage range.
- Individual channel strobes for disabling the receiver and forcing the output to a high level.
- Built-in optional line-termination resistors.
- Individual frequency response controls using external capacitors to provide immunity to differential noise spikes.
- Designed for use with dual differential drivers such as SN55183 and SN75183.
- Interchangeable with National Semiconductor DS7820A and DS8820A.
Applications
The SN75182NG4 is suitable for various applications requiring differential signal reception and processing, including:
- Communication systems where differential signals are used to improve noise immunity.
- Industrial control systems that require robust signal reception in noisy environments.
- Automotive systems where reliable signal transmission is critical.
- Legacy systems that still utilize this component for compatibility and maintenance purposes.
Q & A
- What is the operating temperature range of the SN75182NG4?
The operating temperature range is from 0°C to 70°C.
- What is the supply voltage range for the SN75182NG4?
The supply voltage range is from 4.5 V to 5.5 V.
- What is the common-mode input voltage range of the SN75182NG4?
The common-mode input voltage range is ±15 V.
- Can the SN75182NG4 be used with other differential drivers?
Yes, it is designed to be used with dual differential drivers such as SN55183 and SN75183.
- Is the SN75182NG4 still recommended for new designs?
No, the SN75182NG4 is obsolete and not recommended for new designs.
- What is the purpose of the strobe input on the SN75182NG4?
The strobe input disables the receiver and forces the output to a high level when in the low state.
- How can the frequency response of the SN75182NG4 be controlled?
The frequency response can be controlled using external capacitors to provide immunity to differential noise spikes.
- What are the typical propagation delay times for the SN75182NG4?
The typical propagation delay times are 18 ns to 40 ns for low-to-high output and 31 ns to 45 ns for high-to-low output from differential input.
- Is the SN75182NG4 compatible with other similar components?
Yes, it is interchangeable with National Semiconductor DS7820A and DS8820A.
- What is the output current capability of the SN75182NG4?
The high-level output current is -400 µA, and the low-level output current is 16 mA.
