Overview
The SN65HVD08P is a wide supply range RS-485 transceiver produced by Texas Instruments. This device combines a 3-state differential line driver and a differential line receiver, designed for balanced data transmission and compliance with ANSI TIA/EIA-485-A and ISO-8482E standards. It operates with a supply voltage range of 3 V to 5.5 V, making it versatile for various applications. The SN65HVD08P is particularly useful in scenarios where power supply regulation is challenging, such as in remote or multipoint data buses, due to its low quiescent current and wide supply voltage tolerance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 3 | 5.5 | V | |
| Quiescent Power Consumption | < 90 | mW | ||
| Operating Free-Air Temperature | -40 | 85 | °C | |
| Driver Output Current (High Level) | -60 | mA | ||
| Driver Output Current (Low Level) | 60 | mA | ||
| Receiver Output Current (Low Level) | 8 | mA | ||
| Bus-Pin ESD Protection | 16 kV | HBM | ||
| Data Rate | 10 | Mbps |
Key Features
- Operates with a 3-V to 5.5-V supply voltage range.
- Consumes less than 90-mW quiescent power.
- Open-circuit, short-circuit, and idle-bus failsafe receiver.
- 1/8th unit-load, supporting up to 256 nodes on the bus.
- Bus-pin ESD protection exceeds 16-kV HBM.
- Driver output voltage slew-rate limited for optimum signal quality at 10 Mbps.
- Electrically compatible with ANSI TIA/EIA-485 standard.
- Active-high and active-low enables for direction control.
Applications
- Data transmission with remote stations powered from the host.
- Isolated multipoint data buses.
- Industrial process control networks.
- Point-of-sale networks.
- Electric utility metering.
Q & A
- What is the supply voltage range of the SN65HVD08P?
The SN65HVD08P operates with a supply voltage range of 3 V to 5.5 V.
- What is the quiescent power consumption of the SN65HVD08P?
The SN65HVD08P consumes less than 90 mW of quiescent power.
- What is the maximum number of nodes supported on the bus?
The SN65HVD08P supports up to 256 nodes on the bus due to its 1/8th unit-load capability.
- What is the ESD protection level of the SN65HVD08P?
The bus-pin ESD protection exceeds 16 kV HBM.
- What is the maximum data rate supported by the SN65HVD08P?
The SN65HVD08P supports a data rate of up to 10 Mbps.
- Is the SN65HVD08P compatible with ANSI TIA/EIA-485 standard?
Yes, the SN65HVD08P is electrically compatible with the ANSI TIA/EIA-485 standard.
- What are the typical applications of the SN65HVD08P?
Typical applications include data transmission with remote stations, isolated multipoint data buses, industrial process control networks, point-of-sale networks, and electric utility metering.
- How does the SN65HVD08P handle failsafe conditions?
The SN65HVD08P features an open-circuit, short-circuit, and idle-bus failsafe receiver.
- What is the operating temperature range of the SN65HVD08P?
The operating free-air temperature range is from -40°C to 85°C.
- How should the power supply be managed for reliable operation?
To ensure reliable operation, each supply should be buffered with a 100-nF ceramic capacitor located close to the supply pins.
