Specifications
| Type | Description |
|---|---|
| Part Number | THVD1450 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | VSSOP-8 3.00 mm x 3.00 mm; SOIC-8 4.90 mm x 3.91 mm; VSON-8 3.00 mm x 3.00 mm |
| Interface Type | RS-485 / RS-422 transceiver |
| Duplex Mode | Half duplex |
| Enable Pins | DE, RE |
| Maximum Signaling Rate | Up to 50 Mbps |
| Supported Bus Nodes | 256 nodes |
| Supply Voltage | 3 V to 5.5 V |
| Operating Temperature Range | -40°C to 125°C |
| Extended Common-Mode Range | ±15 V |
| Bus Terminal Input Voltage | -15 V to 15 V |
| Differential Input Voltage | -15 V to 15 V |
| High-Level Logic Input Voltage | Min 2 V, Max VCC |
| Low-Level Logic Input Voltage | 0 V to 0.8 V |
| Driver Output Current | -60 mA to 60 mA |
| Absolute Maximum Supply Voltage | -0.5 V to 7 V |
| Absolute Maximum Bus Voltage | -18 V to 18 V |
| Absolute Maximum Logic Input Voltage | -0.3 V to 5.7 V |
| Receiver Output Current | -24 mA to 24 mA |
| Storage Temperature Range | -65°C to 150°C |
| Bus Pin HBM ESD Rating | ±30 kV |
| Other Pin HBM ESD Rating | ±8 kV |
| CDM ESD Rating | ±1.5 kV |
| Machine Model ESD Rating | ±200 V |
| IEC Contact Discharge ESD Rating | ±18 kV |
| IEC Air-Gap Discharge ESD Rating | ±25 kV |
| IEC Electrical Fast Transient Rating | ±4 kV |
| Standby Supply Current | <1 µA |
| Operating Supply Current | <3 mA |
| Differential Output Voltage | Exceeds 2.1 V |
| Failsafe Features | Open, short, and idle bus failsafe |
| Driver Enable Input Bias | 2-MΩ internal pull-down |
| Receiver Enable Input Bias | 2-MΩ internal pull-up |
| Datasheet Status | request_only |
Product Overview
The THVD1450 is a Texas Instruments half-duplex RS-485 transceiver in the Signal_Chain category. It is part of the THVD14xx RS-485 / RS-422 transceiver family and uses DE and RE enable pins for driver and receiver control. The device comparison data lists THVD1450 as a half-duplex device with signaling rates up to 50 Mbps and support for 256 nodes when used as a 1/8 unit-load bus interface.
Recommended operating conditions specify a 3 V to 5.5 V supply range, -15 V to 15 V bus terminal input voltage, and -15 V to 15 V differential input voltage. Logic input thresholds are defined as 2 V minimum to VCC for high-level inputs and 0 V to 0.8 V for low-level inputs. The driver output current range is -60 mA to 60 mA.
Package options include VSSOP-8, SOIC-8, and VSON-8 footprints. Protection and robustness data include ±30 kV HBM ESD on bus pins and GND, ±18 kV IEC contact discharge, ±25 kV IEC air-gap discharge, and ±4 kV IEC electrical fast transient ratings on bus pins and GND.
Key Features
- Half-duplex RS-485 / RS-422 transceiver interface
- Up to 50 Mbps maximum signaling rate
- Supports 256 nodes with 1/8 unit load
- 3 V to 5.5 V supply voltage range
- -40°C to 125°C ambient operating range
- ±15 V extended common-mode range
- Open, short, and idle bus failsafe
- <1 µA standby supply current
- <3 mA operating supply current
- ±30 kV HBM ESD rating on bus pins
Typical Applications
- RS-485 multi-node serial buses
- RS-422 communication links
- Half-duplex industrial field buses
- PROFIBUS-compatible 5-V interfaces
- Long-distance differential signaling networks
- Bus systems needing failsafe receiver behavior
Procurement Notes
When requesting a quote for THVD1450, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What interface type does the THVD1450 support?
The THVD1450 is specified as an RS-485 / RS-422 transceiver. The device comparison identifies it as a half-duplex device with DE and RE enable pins for driver and receiver control.
What supply range is recommended for THVD1450 operation?
The recommended operating supply voltage for the THVD1450 is 3 V to 5.5 V. Related recommended conditions include -15 V to 15 V bus terminal input voltage and -15 V to 15 V differential input voltage.
How many bus nodes can the THVD1450 support?
The THVD1450 supports 256 nodes when used as a 1/8 unit-load RS-485 bus interface. Its maximum signaling rate is listed as up to 50 Mbps.
Which package options are listed for the THVD1450?
The listed package options are VSSOP-8 at 3.00 mm x 3.00 mm, SOIC-8 at 4.90 mm x 3.91 mm, and VSON-8 at 3.00 mm x 3.00 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 21, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.