Overview
The SN75LBC173A, part of the SN75LBC173 series, is a quadruple differential line receiver designed by Texas Instruments. This device is optimized for balanced multipoint bus communication and complies with ANSI standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and ITU recommendations V.10 and V.11. It is particularly suited for high-speed data transmission in harsh environments, featuring robust ESD protection and low power consumption. The SN75LBC173A is available in 16-pin SOIC and PDIP packages, making it versatile for various applications.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC | 4.75 | 5 | 5.25 | V |
| Voltage at any bus terminal (A, B) | -7 | 12 | V | |
| High-level input voltage, VIH (G, G) | 2 | VCC | V | |
| Low-level input voltage, VIL (G, G) | 0 | 0.8 | V | |
| Output current (Y) | -8 | 8 | mA | |
| Operating free-air temperature, TA | 0 | 70 | °C | |
| Propagation delay time, high-impedance to high-level output | 27 | 38 | ns | |
| Propagation delay time, high-level to high-impedance output | 7 | 16 | ns |
Key Features
- Designed for TIA/EIA-485, TIA/EIA-422, and ISO 8482 applications
- Signaling rate exceeding 50 Mbps
- Fail-safe in bus short-circuit, open-circuit, and idle-bus conditions
- ESD protection on bus inputs exceeds 6 kV
- Common-mode bus input range –7 V to 12 V
- Propagation delay times <16 ns
- Low standby power consumption <20 µA
- Pin-compatible upgrade for AM26LS32, DS96F173, LTC488, and SN75173
- High input impedance and input hysteresis for increased noise immunity
- Input sensitivity of ±200 mV
Applications
- Factory automation
- ATM and cash counters
- Smart grid
- AC and servo motor drives
Q & A
- What is the SN75LBC173A used for? The SN75LBC173A is used for high-speed differential line reception in multipoint bus communication systems, complying with RS-485, RS-422, and other standards.
- What are the key standards the SN75LBC173A complies with? The device complies with ANSI standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and ITU recommendations V.10 and V.11.
- What is the maximum signaling rate of the SN75LBC173A? The signaling rate exceeds 50 Mbps.
- What is the temperature range for the SN75LBC173A? The SN75LBC173A is characterized for operation over the temperature range of 0°C to 70°C.
- What kind of ESD protection does the SN75LBC173A offer? The device offers ESD protection on bus inputs exceeding 6 kV.
- What are the package options for the SN75LBC173A? The device is available in 16-pin SOIC and PDIP packages.
- Is the SN75LBC173A pin-compatible with other devices? Yes, it is pin-compatible with AM26LS32, DS96F173, LTC488, and SN75173.
- What is the typical power consumption of the SN75LBC173A? The device has low standby power consumption of less than 20 µA.
- How does the SN75LBC173A handle bus faults? The device features fail-safe design in bus short-circuit, open-circuit, and idle-bus conditions.
- What is the common-mode bus input range of the SN75LBC173A? The common-mode bus input range is –7 V to 12 V.
