Specifications
| Type | Description |
|---|---|
| Part Number | THVD1520 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | SOIC-8, body size 4.90 mm x 3.91 mm |
| Supply Voltage | 4.5-5.5 V, nominal 5 V; recommended operating conditions |
| Signaling Rate | 10 Mbps; recommended operating conditions |
| Interface Standard | Meets or exceeds TIA/EIA-485A; feature listing |
| Duplex Mode | Half-duplex; RS-422/RS-485 operation |
| Bus Node Loading | 1/8 unit load, up to 256 bus nodes; feature listing |
| Operating Ambient Temperature | -40 to 125 °C; recommended operating conditions |
| Junction Temperature | -40 to 150 °C; recommended operating conditions |
| Absolute Maximum Supply Voltage | -0.5 to 7 V; over operating free-air temperature range |
| Absolute Maximum Logic Pin Input Voltage | -0.3 to 5.7 V; pins D, DE, or RE |
| Absolute Maximum Bus Pin Voltage | -18 to 18 V; A or B inputs, differential or common-mode with respect to GND |
| Receiver Output Current, Absolute Maximum | -24 to 24 mA; absolute maximum rating |
| Absolute Maximum Junction Temperature | 170 °C; absolute maximum rating |
| Storage Temperature | -65 to 150 °C; absolute maximum rating |
| HBM ESD Rating, Bus Terminals and GND | ±16000 V; human body model per ANSI/ESDA/JEDEC JS-001 |
| HBM ESD Rating, All Other Pins | ±4000 V; human body model per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | ±1500 V; charged-device model per JEDEC JESD22-C101 |
| IEC ESD Contact Discharge | ±8000 V; IEC 61000-4-2, bus terminals and GND |
| IEC ESD Air-Gap Discharge | ±8000 V; IEC 61000-4-2, bus terminals and GND |
| IEC EFT Fast Transient Burst | ±4000 V; IEC 61000-4-4, bus terminals and GND |
| Differential Input Voltage | -12 to 12 V; recommended operating conditions |
| Bus Terminal Input Voltage | -7 to 12 V; recommended operating conditions |
| Logic High-Level Input Voltage | 2 V to VCC; driver, driver-enable, and receiver-enable inputs |
| Logic Low-Level Input Voltage | 0 to 0.8 V; driver, driver-enable, and receiver-enable inputs |
| Driver Output Current | -60 to 60 mA; recommended operating conditions |
| Receiver Output Current, Recommended | -8 to 8 mA; recommended operating conditions |
| Differential Load Resistance | 54-60 Ω; recommended operating conditions |
| Junction-to-Ambient Thermal Resistance | 125.3 °C/W; SOIC-8 package |
| Junction-to-Case Top Thermal Resistance | 67.6 °C/W; SOIC-8 package |
| Junction-to-Board Thermal Resistance | 68.6 °C/W; SOIC-8 package |
| Junction-to-Top Characterization Parameter | 20.4 °C/W; SOIC-8 package |
| Junction-to-Board Characterization Parameter | 67.8 °C/W; SOIC-8 package |
| Driver Differential Output Voltage Magnitude, Vtest | 1.5 V min, 2.5 V typ; Vtest from -7 V to +12 V, Figure 7 |
| Driver Differential Output Voltage Magnitude, RS-485 | 1.5 V min, 2.5 V typ; RL=54 Ω RS-485, CL=50 pF, Figure 8 |
| Driver Differential Output Voltage Magnitude, RS-422 | 2 V min, 3 V typ; RL=100 Ω RS-422, CL=50 pF |
| Change in Driver Differential Output Voltage Magnitude | -50 to 50 mV; RL=54 Ω or 100 Ω, CL=50 pF, Figure 8 |
| Steady-State Common-Mode Output Voltage | 1 V min, VCC/2 typ, 3 V max; driver output |
| Change in Differential Driver Common-Mode Output Voltage | -50 to 50 mV; RL=54 Ω or 100 Ω, CL=50 pF, Figure 8 |
| Peak-to-Peak Driver Common-Mode Output Voltage | 220 mV max; driver output |
| Driver Short-Circuit Output Current | 150 mA max; D pin = VCC, -7 V <= VA or VB <= 12 V, or A pin shorted to B |
| Differential Output Capacitance | 8 pF typ; driver output |
| Bus Input Current, VI=12 V | 75 µA min, 110 µA max; VI=12 V, DE=0 V, VCC=0 V or 5.5 V |
| Bus Input Current, VI=-7 V | -90 µA min, -70 µA max; VI=-7 V, DE=0 V, VCC=0 V or 5.5 V |
| Bus Input Impedance | 96 kΩ min; VA=-7 V, VB=12 V and VA=12 V, VB=-7 V, Figure 12 |
| Positive-Going Receiver Differential Input Threshold | -90 mV min, -50 mV max; receiver input |
| Negative-Going Receiver Differential Input Threshold | -200 mV min, -150 mV max; receiver input |
| Receiver Differential Input Hysteresis | 40 mV min, 60 mV typ; VIT+ - VIT- |
| Receiver High-Level Output Voltage | 4 V min, VCC - 0.3 V typ; IOH=-8 mA |
| Receiver Low-Level Output Voltage | 0.2 V typ, 0.4 V max; IOL=8 mA |
| Receiver High-Impedance Output Current | -1 to 1 µA; VO=0 V or VCC, RE=VCC |
| Receiver Output Short-Circuit Current | 95 mA typ; RE=0, DE=0, Figure 13 |
| Logic Input Current | -2.5 to 2.5 µA; D, DE, RE inputs |
| Supply Current, Driver and Receiver Enabled | 600 µA typ, 840 µA max; DE=VCC, RE=0, no load |
| Supply Current, Driver Enabled Receiver Disabled | 440 µA typ, 580 µA max; DE=VCC, RE=VCC, no load |
| Supply Current, Driver Disabled Receiver Enabled | 530 µA typ, 680 µA max; DE=0, RE=0, no load |
| Supply Current, Driver and Receiver Disabled | 0.1 µA typ, 1 µA max; DE=0, RE=VCC, no load |
| Power Dissipation, Unterminated | 100 mW; driver and receiver enabled, VCC=5.5 V, TA=125 °C, 50% duty-cycle square wave at maximum signaling rate, RL=300 Ω, CL=50 pF |
| Power Dissipation, RS-422 Load | 135 mW; driver and receiver enabled, VCC=5.5 V, TA=125 °C, 50% duty-cycle square wave at maximum signaling rate, RL=100 Ω, CL=50 pF |
| Power Dissipation, RS-485 Load | 190 mW; driver and receiver enabled, VCC=5.5 V, TA=125 °C, 50% duty-cycle square wave at maximum signaling rate, RL=54 Ω, CL=50 pF |
| Driver Differential Output Rise and Fall Times | 10 ns min, 17 ns typ, 30 ns max; Figure 9 |
| Driver Propagation Delay | 20 ns typ, 35 ns max; Figure 9 |
| Driver Pulse Skew | 0.8 ns typ, 4 ns max; |tPHL - tPLH|, Figure 9 |
| Driver Disable Time | 25 ns typ, 100 ns max; Figure 10 and Figure 11 |
| Driver Enable Time, Receiver Enabled | 25 ns typ, 100 ns max; Figure 10 and Figure 11 |
| Driver Enable Time, Receiver Disabled | 1.5 µs typ, 3 µs max; Figure 10 and Figure 11 |
| Receiver Output Rise and Fall Times | 5 ns typ, 15 ns max; Figure 14 |
| Receiver Propagation Delay Time | 50 ns typ, 95 ns max; Figure 14 |
| Receiver Pulse Skew | 3 ns typ, 15 ns max; |tPHL - tPLH|, Figure 14 |
| Receiver Disable Time | 15 ns typ, 30 ns max; Figure 15 |
| Receiver Enable Time, Driver Enabled | 25 ns typ, 170 ns max; Figure 15 |
| Receiver Enable Time, Driver Disabled | 1 µs typ, 5 µs max; Figure 16 |
| Pin 1 Function | R, receive data output; SOIC-8 top view |
| Pin 2 Function | RE, receiver enable active low, internal 5-MΩ pull-up; SOIC-8 top view |
| Pin 3 Function | DE, driver enable active high, internal 5-MΩ pull-down; SOIC-8 top view |
| Pin 4 Function | D, driver data input, internal 5-MΩ pull-up; SOIC-8 top view |
| Pin 5 Function | GND, device ground; SOIC-8 top view |
| Pin 6 Function | A, bus I/O port complementary to B; SOIC-8 top view |
| Pin 7 Function | B, bus I/O port complementary to A; SOIC-8 top view |
| Pin 8 Function | VCC, 5-V supply; SOIC-8 top view |
| Datasheet Status | request_only |
Product Overview
The THVD1520 is a Texas Instruments half-duplex RS-485 transceiver categorized under Signal_Chain. It meets or exceeds TIA/EIA-485A and is specified for a 10 Mbps signaling rate from a recommended 4.5 V to 5.5 V supply, with 5 V nominal operation. The receiver and driver share the differential A and B bus pins for half-duplex operation.
Key Features
- Half-duplex RS-485 transceiver for 5 V systems
- Meets or exceeds TIA/EIA-485A interface requirements
- 10 Mbps maximum recommended signaling rate
- 1/8-unit-load input supports up to 256 bus nodes
- -40 to 125 °C recommended ambient operation
- ±16 kV HBM rating on bus terminals and GND
- ±8 kV IEC 61000-4-2 contact discharge rating
- Driver differential output reaches 1.5 V minimum on RS-485 load
- Low disabled supply current of 0.1 µA typical
- SOIC-8 package with 4.90 mm x 3.91 mm body
Typical Applications
- Half-duplex RS-485 networks
- Multi-node serial buses
- 5 V differential data links
- TIA/EIA-485A interface designs
- Extended-temperature signal-chain interfaces
- RS-422 loaded differential outputs
- Bus terminals requiring IEC ESD ratings
Procurement Notes
When requesting a quote for THVD1520, 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 type of transceiver is the THVD1520?
The THVD1520 is a Texas Instruments half-duplex RS-485 transceiver. It is listed in the Signal_Chain category and meets or exceeds the TIA/EIA-485A interface standard.
What supply voltage does the THVD1520 use?
The recommended operating supply range is 4.5 V to 5.5 V, with nominal 5 V operation. The absolute maximum supply voltage range is specified from -0.5 V to 7 V.
How many bus nodes can the THVD1520 support?
The THVD1520 has 1/8-unit-load bus loading, which supports up to 256 bus nodes. The recommended bus terminal input voltage range is -7 V to 12 V.
What package is used for the THVD1520?
The device is provided in an SOIC-8 package with a body size of 4.90 mm x 3.91 mm. The pinout includes R, RE, DE, D, GND, A, B, and VCC.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.