OPA209AIDGKRT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments OPA209AIDGKRT is a dual-channel precision op-amp with 2.2 nV/√Hz voltage noise, 18 MHz gain-bandwidth product, rail-to-rail output, and 36 V supply rating in a compact VSSOP-8 package. From $2.50 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA209AIDGKRT Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA209AIDGKRT?
- Ultra-low voltage noise of 2.2 nV/√Hz enabling precision signal amplification with minimal noise contribution in sensitive measurement circuits
- Wide 36 V supply range with rail-to-rail output for maximum dynamic range in industrial and high-voltage single-supply systems
- 18 MHz gain-bandwidth product supporting fast signal processing in active filter and precision amplifier designs up to several megahertz
What is OPA209AIDGKRT used for?
The OPA209AIDGKRT is ideal for precision signal conditioning in industrial instrumentation and data acquisition systems where low noise is critical, such as strain gauge bridges, thermocouple amplifiers, and sensor front-ends requiring sub-10 nV/√Hz noise performance. Its 36 V supply rating and rail-to-rail output make it suitable for wide-range industrial environments powered from 24 V or 36 V rails. The dual-channel VSSOP-8 package reduces board area and component count when two precision amplification stages are needed in the same design.
What are the specifications of OPA209AIDGKRT?
| YTEOL | EYTEOL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Country of Origin |
Where can I find the OPA209AIDGKRT datasheet?
OPA209AIDGKRT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA209AIDGKRT?
Compatible alternatives and drop-in replacements for OPA209AIDGKRT:
Frequently Asked Questions
What voltage noise density does the OPA209AIDGKRT achieve, and why does it matter for precision measurements?
The OPA209AIDGKRT achieves 2.2 nV/√Hz voltage noise density at 1 kHz, which is among the lowest in its class for a 36 V dual op-amp. In a 10 kHz bandwidth system this corresponds to an integrated noise of approximately 220 nV RMS, enabling sub-microvolt resolution in precision sensor signal chains such as Wheatstone bridge amplifiers or RTD conditioners.
Can the OPA209AIDGKRT operate directly from a 24 V industrial rail, and what is its maximum supply voltage?
Yes, the OPA209AIDGKRT supports supply voltages from 4.5 V to 36 V (or ±2.25 V to ±18 V dual supply), making it fully compatible with 24 V industrial power rails. Its rail-to-rail output ensures the output can swing within approximately 100 mV of either supply rail, maximizing dynamic range in single-supply industrial instrumentation applications.
How does the OPA209 18 MHz gain-bandwidth product affect its usable closed-loop bandwidth at different gains?
With an 18 MHz gain-bandwidth product, the OPA209AIDGKRT provides approximately 1.8 MHz of closed-loop bandwidth at a gain of 10 V/V, and about 180 kHz at a gain of 100 V/V. This makes it suitable for precision audio signal chains, active anti-aliasing filters up to 500 kHz, and instrumentation amplifier circuits requiring both low noise and adequate bandwidth in the 1 kHz to 1 MHz range.
When is the OPA209AIDGKRT a better choice than the OPA2209 for a compact PCB design?
The OPA209AIDGKRT is packaged in a VSSOP-8 (also known as MSOP-8) footprint measuring approximately 3 mm × 3 mm, while OPA2209 variants may be offered in larger SOIC-8 or DIP packages with a footprint of 4.9 mm × 3.9 mm or larger. Choosing the VSSOP-8 OPA209AIDGKRT saves approximately 50% of the package footprint area, which is significant in portable or miniaturized precision instruments.
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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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