SN75176ADR - RS-422/RS-485 Differential Bus Transceiver | Texas Instruments
N.º de pieza: SN75176ADR ✓ ActivoSN75176ADR Descripción general
Alternativas directas para SN75176ADR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con SN75176ADR (mismo factor de forma y huella) — difiere en Product Type, Driver Output State, Operating Temperature Range, Package, Receiver Output State.
SN75176BDR
✅ Sustitución directaConsulte el precio
Ver hoja de datos →SN75176BDRG4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SN75176ADE4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DS75176BTM
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX485EESA+
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LTC485
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SN75176ADR Especificaciones
| Product Type | Differential bus transceiver |
| Supported Interface | RS-422 and RS-485 |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Encapsulado | 8-pin SOIC |
| Número de pines | 8 pins |
| Tipo de montaje | Surface Mount |
| Communication Mode | Bidirectional |
| Bus Topology | Multipoint transmission |
| Transmission Line Type | Balanced transmission lines |
| Driver Output State | 3-state output |
| Receiver Output State | 3-state output |
| Noise Environment | Designed for long bus lines in noisy environments |
| ANSI Standard | ANSI Standard EIA/TIA-422-B |
| ITU Recommendation | ITU Recommendation V.11 |
| Unit Price at Quantity 1 | USD 0.4602 as of 2026-10-29 |
Guía de configuración de pines de SN75176ADR 8-pin soic
Configuración de pines para SN75176ADR (encapsulado 8-pin soic). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para SN75176ADR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
SN75176ADR es adecuado para 6 aplicacións: Industrial RS-485 Field Bus, RS-422 Point-to-Point Communication, Data Acquisition and Instrumentation, Factory Automation Equipment, Building and HVAC Control Networks, Telecom and Power-Monitoring Equipment.
Industrial RS-485 Field Bus
The SN75176ADR fits industrial RS-485 field-bus nodes because it provides bidirectional differential signaling, 3-state driver and receiver outputs, and operation from a 4.75 V to 5.25 V supply in an 8-pin SOIC package. Place the transceiver at the bus interface between a controller UART and a twisted-pair network so that common-mode industrial noise is rejected by the differential receiver. The 3-state driver is useful when several nodes share a multidrop bus because only one node should transmit at a time. Designers should verify the exact maximum data rate, bus common-mode range, termination, fail-safe biasing, and isolation requirements in the manufacturer datasheet.
Recomendado
RS-422 Point-to-Point Communication
The SN75176ADR can support RS-422 point-to-point links because its differential driver and receiver operate on balanced transmission lines and the verified product information cites ANSI EIA/TIA-422-B and ITU V.11 requirements. Use the device when a controller needs a robust, noise-resistant serial connection over a longer cable run than an ordinary single-ended UART interface provides. The 4.75 V to 5.25 V operating range suits 5 V embedded systems. Confirm the required data rate and receiver sensitivity from the official datasheet, and use termination appropriate to the selected transmission-line topology.
Recomendado
Data Acquisition and Instrumentation
SN75176ADR is appropriate for data-acquisition equipment that connects a controller to remotely located sensors or laboratory instruments over a balanced bus. The differential receiver helps reject common-mode disturbance, while the bidirectional architecture supports command and response traffic on the same physical bus. Its 8-pin SOIC package is practical for compact instrumentation and allows the transceiver to be placed close to the connector and protection components. The verified data does not specify data rate or common-mode limits, so system designers must confirm those values before defining cable length, protection, grounding, or isolation requirements.
Recomendado
Factory Automation Equipment
The SN75176ADR supports factory-automation equipment that links PLCs, motor controllers, sensors, and remote I/O over an RS-485 network. Differential signaling is valuable in factories where motors, relays, and switching supplies can inject noise onto wiring, and the transceiver’s 3-state outputs help avoid bus contention when multiple nodes share the line. The verified 4.75 V to 5.25 V supply range and 8-pin SOIC package support conventional embedded hardware. Validate the bus topology, driver-enable sequence, termination, surge protection, and electrical-isolation strategy against the actual factory wiring and safety requirements.
Recomendado
Building and HVAC Control Networks
The SN75176ADR can be used in building-control and HVAC systems where a central controller communicates with distributed thermostats, actuators, and environmental sensors. A balanced differential bus helps maintain data integrity across building wiring, especially where fluorescent lighting, relays, and variable-speed equipment create electrical noise. The transceiver’s 8-pin SOIC footprint simplifies integration into compact controller boards, while its 4.75 V to 5.25 V supply aligns with common 5 V control electronics. The design must still address bus grounding, cable length, surge events, termination, and any need for galvanic isolation across building zones.
Recomendado
Telecom and Power-Monitoring Equipment
SN75176ADR is suitable for remote monitoring equipment that uses an RS-422 or RS-485 balanced link to exchange status, measurement, and configuration data. Its 3-state driver and receiver outputs allow bus sharing, and the SOIC-8 package supports dense control boards where space is limited. In power-monitoring installations, differential signaling helps maintain communication integrity between separated equipment and reduces sensitivity to differences in ground potential. Because the verified data does not state the maximum data rate, common-mode voltage range, or isolation withstand voltage, the final design must be checked against the installation environment and protected with appropriately rated surge and isolation components.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para SN75176ADR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | SN75176BDR | SN75176BDRG4 | MAX485 |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 - verify manufacturer ordering code |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Maxim Integrated |
| Device Type | RS-422/RS-485 differential transceiver | SN75176-family differential transceiver | SN75176-family differential transceiver | RS-485 transceiver |
| Bidirectional Communication | Yes | Yes | Yes | Yes |
| Bus Topology | Multipoint transmission | Multipoint transmission | Multipoint transmission | RS-485 multidrop bus |
| Transmission Line | Balanced differential line | Balanced differential line | Balanced differential line | Balanced differential line |
Diferenciadores clave
- Single IC combines bidirectional driver and receiver (frente a SN75176BDR)
- 5 V supply operation for embedded RS-485 nodes (frente a MAX485)
- 3-state outputs support shared multidrop buses (frente a SN75176BDRG4)
Notas de diseño
Place the SN75176ADR close to the bus connector and place protection components between the connector and transceiver pins. Keep the differential pair routed as a closely coupled pair with a continuous ground reference where appropriate. The verified data identifies the SOIC-8 package and balanced transmission-line operation, but it does not provide a manufacturer-recommended PCB layout, so follow the latest TI datasheet and application guidance for the final board.
The verified operating range is 4.75 V to 5.25 V, so the transceiver must be supplied from a regulated 5 V rail within that range. Decouple the supply close to the device and avoid sharing long supply-current paths with noisy switching stages. Confirm the absolute maximum ratings, input thresholds, and output load limits from the official datasheet before connecting a new bus because those values are not included in the verified excerpts.
Do not enable the SN75176ADR driver on multiple nodes simultaneously when they share an RS-485 bus, because contention can corrupt communication and increase current. Use the driver-enable and receiver-enable controls to establish a single active transmitter, and ensure the receiver enable polarity matches the system logic. The verified data confirms 3-state driver and receiver outputs but does not specify the control-pin polarity, so verify it in the manufacturer pinout and logic diagrams.
Use twisted-pair cabling for the RS-485 or RS-422 connection and apply termination only at the physical ends of the bus. Bias the bus so that it has a defined state when all drivers are disabled. The termination and bias values are not present in the verified source data, so derive them from the selected baud rate, cable impedance, topology, and transceiver requirements rather than copying values from an unrelated design.
Differential signaling does not remove the need for grounding and surge protection. Ground-potential differences, lightning exposure, and industrial transients can exceed a transceiver’s common-mode limits even when the data signal is balanced. Add appropriately rated protection, consider galvanic isolation for long external cables, and verify the SN75176ADR’s absolute maximum and common-mode ratings against the installation environment before production release.
Información de cumplimiento
The supplied verified web results mention RoHS and REACH in comparison pages but do not provide an authoritative compliance statement for SN75176ADR. Compliance values therefore remain unknown pending confirmation on the official TI product page or manufacturer documentation.
