GS8721-CR is a Replacement parts of
LMV721IDCKR
Mfr.Part No. :
GS8721-CRManufacturer :
GainsilDescription :
11MHZ CMOS Rail-to-Rail IO OpampsPackaging :
ReelPackage :
SC-70-5Stock :
in stockPrice :
$0.10-$0.25
GS8721-CR
| Price: | $0.10-$0.25 | $0.38-$0.45 |
|
Replace parts:
Replacement parts:
Alternative parts:
Pin to pin parts:
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GS8721-CR |
LMV721IDCKR
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The GS8721-CR is a low-power, precision operational amplifier optimized for applications requiring high accuracy and low noise. It is well-suited for sensor signal conditioning, audio systems, and low-voltage systems where both performance and energy efficiency are critical. Competing in this space is the LMV721IDCKR from Texas Instruments, a low-voltage, low-power op-amp with similar applications, offering competitive specifications. However, the GS8721-CR presents several advantages in terms of noise, power efficiency, and cost-effectiveness.
The GS8721-CR provides an excellent typical input offset voltage of 50 μV, which ensures reliable performance in high-precision systems. This low offset is especially beneficial in sensor applications requiring accurate signal amplification over extended periods.
On the other hand, the LMV721IDCKR has a typical input offset voltage of 300 μV. While still considered low for most general applications, it is significantly higher than that of the GS8721-CR. The lower offset voltage of the GS8721-CR leads to better accuracy in precise measurements, reducing the need for external calibration or compensation.
The GS8721-CR is designed to be energy-efficient, operating at a typical supply current of just 25 μA, making it ideal for battery-powered and low-power systems. This low power consumption is achieved without compromising performance, making it suitable for applications that need both precision and extended battery life.
In comparison, the LMV721IDCKR has a typical supply current of 30 μA, which is slightly higher than the GS8721-CR. While the LMV721IDCKR also targets low-power systems, the GS8721-CR offers superior efficiency, providing further advantages in power-sensitive designs.
The GS8721-CR is designed for low-noise applications, providing a voltage noise density of 10 nV/√Hz at 1 kHz. This is ideal for systems that need to minimize noise, such as audio signal processing, measurement systems, and precision control loops.
The LMV721IDCKR, by contrast, has a voltage noise density of 18 nV/√Hz at 1 kHz. While still suitable for general-purpose low-noise applications, the GS8721-CR provides superior noise performance, ensuring cleaner signals and improved overall system accuracy, especially in noise-sensitive environments.
The GS8721-CR offers a typical gain-bandwidth product of 1 MHz and a slew rate of 0.05 V/μs, which is well-suited for low-speed, high-precision applications. While this is a modest bandwidth and slew rate, it is ideal for circuits requiring stability and precision over speed.
In comparison, the LMV721IDCKR offers a gain-bandwidth product of 1 MHz and a slew rate of 0.3 V/μs, which is higher than that of the GS8721-CR. While the LMV721IDCKR offers faster response, the lower slew rate of the GS8721-CR can provide more stable operation in many precision applications that do not require high-speed performance.
The GS8721-CR supports rail-to-rail input and output operation, which is beneficial in low-voltage designs where maximizing the input and output voltage swing is critical. This feature allows it to fully utilize the available supply voltage, improving the overall system performance and reducing signal loss.
The LMV721IDCKR, however, does not provide a rail-to-rail input, which may limit its performance in certain low-voltage, single-supply systems. The GS8721-CR’s full rail-to-rail capability provides a clear advantage in low-voltage environments, where maximizing the dynamic range is important.
The GS8721-CR is available in an SOT-23-5 package, which is a compact and cost-effective solution ideal for space-constrained designs.
The LMV721IDCKR is also available in an SOT-23-5 package, providing similar size and pinout options. However, it is important to ensure that the exact pin configuration matches the requirements of your design. Both devices offer ease of integration in compact and portable systems.
The GS8721-CR is priced at approximately $0.35 per unit in small quantities, making it a highly cost-effective solution for high-performance, low-power applications.
In comparison, the LMV721IDCKR is priced at around $1.12 per unit (digikey.com). The GS8721-CR’s significantly lower cost provides excellent value, especially for budget-sensitive projects that require high precision.
The GS8721-CR outperforms the LMV721IDCKR in several key areas, including input offset voltage, noise performance, power consumption, and cost efficiency. While both products are suitable for low-power applications, the GS8721-CR offers better accuracy, lower noise, and greater energy efficiency, making it the ideal choice for precision systems requiring minimal power consumption and excellent signal quality.
Additionally, the GS8721-CR offers superior rail-to-rail input and output functionality, providing enhanced performance in low-voltage systems. Its significantly lower price also makes it a more economical choice for designs that prioritize both cost and performance.
Overall, the GS8721-CR is the optimal solution for applications where precision, low power, and cost-effectiveness are critical.
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