TLV2473CN - Dual 6V 2.8MHz RRIO Op Amp | Texas Instruments
N.º de pieza: TLV2473CN ✓ ActivoTLV2473CN Descripción general
An operational amplifier is an analog integrated circuit that compares two input voltages and amplifies the difference between them. The TLV2473CN belongs to the CMOS operational-amplifier family, within the broader amplifier IC and integrated-circuit hierarchy. Rail-to-rail input operation allows the input voltages to approach the supply rails, while rail-to-rail output operation increases the usable output-voltage range. This makes the device suitable for sensor interfaces, low-voltage signal conditioning, audio paths, and portable measurement systems.
The TLV2473 family combines a 2.8 MHz gain-bandwidth product with approximately 600 uA of supply current per channel. The shutdown function provides a way to reduce supply consumption when the amplifier is not needed. The dual configuration provides two independent amplifier channels in one package, reducing board area and simplifying power-supply routing in stereo, dual-sensor, or multi-channel analog front ends.
The TLV2473CN uses a 14-pin PDIP package, which is suitable for through-hole construction, prototyping, educational platforms, and legacy industrial equipment. Unlike a surface-mount-only footprint, the PDIP format also makes the part convenient for socketed assemblies and manual rework. The package does not provide the thermal performance of a modern exposed-pad package, so applications requiring substantial output-current dissipation should be reviewed carefully.
Typical uses include low-voltage sensor conditioning, portable medical and industrial instrumentation, battery-operated measurement systems, audio preamplification, and general-purpose analog signal processing. The rail-to-rail input and output characteristics are especially helpful when signals occupy a large portion of the available supply range. Designers should still verify input and output common-mode limits, output-current capability, stability with the selected load, and shutdown-control polarity against the manufacturer datasheet.
For PCB design, keep input and feedback routing short, provide local supply bypassing, and place the shutdown control away from high-current switching nodes. This page summarizes the manufacturer product information and practical design considerations for engineers evaluating the TLV2473CN.
Alternativas directas para TLV2473CN — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
TLV2473IN
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLV2473CNG4
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLV2473CP
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLV2473IN G4
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLV2473U
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLV2473CN Valores máximos y características eléctricas
| Product Type | Dual CMOS operational amplifier with shutdown |
| Number of Channels | 2 channels |
| Tensión de alimentación | 6 V maximum |
| Gain-Bandwidth Product | 2.8 MHz |
| Corriente de alimentación | 600 uA per channel |
| Input Type | Rail-to-rail input |
| Tipo de salida | Rail-to-rail output |
| Shutdown Function | Yes |
| Input Bias Current | 2.5 pA |
| Input Offset Voltage | 2400 uV maximum |
| Encapsulado | 14-pin PDIP |
| Tipo de montaje | Through-hole |
Configuración de pines de TLV2473CN
| Pin 1 | OUTA — Output of amplifier A |
| Pin 2 | INA- — Inverting input of amplifier A |
| Pin 3 | INA+ — Non-inverting input of amplifier A |
| Pin 4 | V+ — Positive supply voltage |
| Pin 5 | INB+ — Non-inverting input of amplifier B |
| Pin 6 | INB- — Inverting input of amplifier B |
| Pin 7 | OUTB — Output of amplifier B |
| Pin 8 | V- — Negative supply voltage |
| Pin 9 | SHDN — Shutdown control input |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | NC — Not connected (per datasheet) |
Aplicaciones típicas
TLV2473CN es adecuado para 6 aplicacións: Portable Sensor Signal Conditioning, Battery-Powered Instrumentation, Low-Voltage Audio Preamplifier, Industrial Process Measurement, Medical and Diagnostic Signal Conditioning, IoT Sensor Interface.
Portable Sensor Signal Conditioning
The TLV2473CN fits portable sensor front ends that need two low-power amplifier channels, low input bias current, and operation close to the supply rails. The approximately 600 uA per-channel supply current helps limit battery drain, while the 2.5 pA input-bias-current characteristic supports high-impedance sources. A dual arrangement can buffer one sensor and amplify a second diagnostic or reference channel. Verify the sensor output swing, common-mode range, noise requirements, and load capacitance against the TLV2473 datasheet.
Recomendado
Battery-Powered Instrumentation
TLV2473CN is appropriate for battery-operated measurement equipment where continuous current consumption matters. Its CMOS input stage and low supply current complement the dual-channel configuration, allowing one device to amplify two low-level signals or provide gain and buffering in the same package. The rail-to-rail input and output characteristics help maximize usable signal range in a low-voltage supply. Select external resistors and capacitors for the required gain and bandwidth, and verify quiescent and shutdown current at the actual supply voltage.
Recomendado
Low-Voltage Audio Preamplifier
The TLV2473CN can provide dual-channel low-voltage audio preamplification in portable equipment, headphones, or line-level signal-conditioning boards. Its rail-to-rail output stage helps preserve signal swing from a reduced supply, while the 2.8 MHz bandwidth covers common audio paths without requiring a high-speed amplifier. Keep the feedback network stable and confirm output-current capability for the intended load. The 14-pin PDIP package is especially convenient for audio prototypes and through-hole legacy products.
Recomendado
Industrial Process Measurement
TLV2473CN is suitable for low-voltage industrial process-measurement circuits that must amplify sensor-derived signals and remain within a compact dual-channel design. The rail-to-rail inputs support signals near the supply range, and the shutdown control can reduce consumption when a measurement channel is idle. Use the device for low- to moderate-bandwidth loops and confirm that the input common-mode range, offset voltage, and output drive remain acceptable over the full industrial temperature range specified by the selected ordering code.
Recomendado
Medical and Diagnostic Signal Conditioning
The TLV2473CN can be used in low-voltage medical or diagnostic instrumentation where dual analog channels, low bias current, and rail-to-rail signal handling are useful. The low-power CMOS operating characteristics help support compact portable equipment, while the 2.8 MHz bandwidth is suitable for many sensor and bio-signal conditioning stages. Medical designs must independently assess isolation, patient protection, leakage, noise, and regulatory requirements; this amplifier should not be assumed qualified for a medical application without the complete system review.
Recomendado
IoT Sensor Interface
TLV2473CN is a practical choice for IoT and smart-home sensor interfaces that operate from a low-voltage rail and need to buffer or amplify more than one analog input. The dual channel reduces component count, the approximately 600 uA per-channel supply current supports battery operation, and the shutdown function can be controlled by a system power-management signal. Keep the analog path away from wireless-module switching layouts and confirm that the selected sensor and ADC input range remain compatible with the available supply voltage.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TLV2473CN — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TLV2473IN | TLV2473CNG4 | TLV2473CP | TLV2473IN G4 | TLV2473U |
|---|---|---|---|---|---|---|
| Package | PDIP-14 | PDIP-14 | PDIP-14 | PDIP-14 | PDIP-14 | PDIP-14 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| Gain-Bandwidth Product | 2.8 MHz | 2.8 MHz | 2.8 MHz | 2.8 MHz | 2.8 MHz | 2.8 MHz |
| Supply Current | 600 uA per channel | 600 uA per channel | 600 uA per channel | 600 uA per channel | 600 uA per channel | 600 uA per channel |
| Input Offset Voltage | 2400 uV maximum | 2400 uV maximum | 2400 uV maximum | 2400 uV maximum | 2400 uV maximum | 2400 uV maximum |
| Input Bias Current | 2.5 pA | 2.5 pA | 2.5 pA | 2.5 pA | 2.5 pA | 2.5 pA |
| Rail-to-Rail Input | Yes | Yes | Yes | Yes | Yes | Yes |
| Rail-to-Rail Output | Yes | Yes | Yes | Yes | Yes | Yes |
| Shutdown Function | Yes | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- Dual rail-to-rail amplifier channels with shutdown (frente a TLV2473IN)
- 14-pin PDIP construction (frente a TLV2473CNG4)
- Low-power CMOS signal conditioning (frente a TLV2473CP)
Notas de diseño
Place the supply bypass capacitor close to the V+ and V- pins and keep the ground return path short. The TLV2473 family is specified at approximately 600 uA per channel, so bypassing is especially important when long PCB traces or shared supply wiring add noise. Check the exact capacitor value and stability guidance in the manufacturer datasheet, and do not exceed the 6 V device rating.
Keep the inverting-input and feedback traces short and route them away from the shutdown trace and digital switching nodes. For high-impedance sources, minimize leakage from adjacent pins and board contamination. The rail-to-rail input stage does not eliminate offset, bias-current, or capacitance errors, so provide a clean ground reference and use the datasheet pin configuration when assigning the 14-pin PDIP footprint.
Do not treat every TLV2473 family ordering code as automatically interchangeable. Confirm that the replacement has the same 14-pin PDIP footprint, two amplifier channels, shutdown pin assignment, supply limits, temperature grade, and electrical limits. A generic dual CMOS amplifier with the same pin count may still differ in common-mode range, output drive, stability, or shutdown polarity.
Información de cumplimiento
Compliance details were not explicitly identified in the available product information. Use the manufacturer product page and current material compliance documentation for final qualification.