OPA743NA Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The OPA743NA is a single-channel rail-to-rail input and output operational amplifier optimized for single-supply operation in a 5-pin SOT-23 package. Features wide output swing from rail to rail enabling maximum dynamic range at low supply voltages. From $1.00 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swing maximizes signal dynamic range in single-supply battery-powered applications
- Single-channel op-amp in compact 5-pin SOT-23 package minimizes board real estate in portable and wearable designs
- Optimized for low-voltage single-supply operation, enabling integration in 3.3 V and 5 V microcontroller-based sensor circuits
Applications
The OPA743NA is well suited for portable instrumentation, sensor signal conditioning, and battery-powered data acquisition circuits where rail-to-rail swing ensures full dynamic range at supply voltages as low as 2.7 V. It is used in handheld medical devices and consumer electronics where compact 5-pin SOT-23 packaging reduces PCB footprint. The amplifier also fits low-power active filter and buffer designs in IoT edge nodes requiring single-supply operation.
Specifications
| YTEOL | EYTEOL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Country of Origin |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes the OPA743NA suitable for battery-powered designs?
The OPA743NA features rail-to-rail input and output swing, which allows it to process signals from nearly ground to supply voltage, maximizing dynamic range in single-supply systems operating at low voltages typical of battery-powered portable electronics.
What package does the OPA743NA come in?
The OPA743NA is available in a 5-pin SOT-23 package, one of the smallest standard IC packages, making it ideal for space-constrained designs in wearables, portable instruments, and compact embedded systems.
How many op-amp channels does the OPA743NA contain?
The OPA743NA contains a single op-amp channel, providing a dedicated amplifier without unused channels consuming power, which is advantageous for designs requiring minimal quiescent current and compact layout.
What are typical applications for the OPA743NA?
Typical applications include sensor signal conditioning for temperature, pressure, and light sensors, active filter stages in audio and measurement equipment, and output buffer circuits in low-voltage single-supply data acquisition systems.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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