Texas Instruments SLOU061A manual Noninverting Amplifier, VREF1 +1.24 VR111R113R113

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Noninverting Amplifier

3.3 Noninverting Amplifier

Figure 3–2 shows area 100 equipped with a single operational amplifier configured as a noninverting amplifier with single-supply power input.

Basic setup is done by choice of input and feedback resistors. The transfer function for the circuit as shown is:

VOUT +VIN ￿1 )R112R109￿)VREF1￿

The input signal must be referenced to VREF1.

To cancel the effects of input bias current, set R102 = R112 R109, or use a 0-Ωjumper for R102 if the operational amplifier is a low input bias operational amplifier.

The TL431 adjustable precision shunt regulator, configured as shown, provides a low impedance reference for the circuit at about 1/2 V1+ in a 3 V system. Another option is to adjust resistors R113 and R111 for the desired VREF1 voltage. The formula for calculating VREF1 is:

VREF1 +1.24 V￿R111R113)R113

Figure 3–2. Noninverting Amplifier With Single Supply Using Area 100

 

 

 

 

 

V1+

 

 

 

 

V1+

 

 

 

 

 

 

 

 

 

 

C107

C108

 

 

 

R110

 

 

 

0.1 ∝ F

10 ∝ F

 

 

A101+

 

 

GND1

 

 

 

 

 

 

 

Jumper

 

 

 

Jumper 102 – to VREF1

 

 

 

 

 

 

R109

 

 

C105

C104

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A102–

 

 

 

 

 

 

 

 

 

 

V1–

 

 

 

 

 

A103+

R103

 

 

 

 

 

 

 

 

 

 

Power Supply Bypass

V1–

 

A104–

R102

 

 

 

 

 

 

 

 

 

 

 

 

 

V1+

 

 

 

 

+

 

 

 

R108

 

 

 

 

Vin

 

 

 

2.2 kΩ

 

 

 

 

–

 

 

 

 

 

 

 

 

Jumper

 

 

VREF1 = 1.24 V

 

 

 

 

R111

 

 

 

 

C106

 

 

 

C

 

 

 

10

∝ F

 

 

R

A

U102 = TLV431ACDBV5

 

Input Signal With

 

 

 

 

 

 

Reference to VREF1

 

R113

 

 

 

 

 

 

 

 

Voltage Reference

 

 

 

 

 

R114

 

C110

 

 

 

 

C109

 

R112

 

 

 

 

 

 

 

 

 

 

 

V1+

 

VOUT = VIN(1 + R109R112 )+ VREF4

 

2

7

8

 

 

 

 

–

 

 

SD

R104

3

 

6

 

1 OUT

+

U101

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

V1–

 

 

 

 

C101

 

R105

 

 

 

 

 

 

 

 

R106

 

 

 

 

 

 

1 FLT

 

 

C102

 

 

C103

 

 

 

 

 

 

R102 = R112 II R109,

 

 

 

 

 

or Short if Using Low Input

2

 

 

Bias Op Amp

 

 

 

–

6

 

 

 

 

 

 

 

 

 

3

+

5

 

 

 

 

 

 

1

Optional

R107

R101

100 k

5.6 k

V1–

Example Circuits

3-3

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Contents User’s Guide Important Notice Related Documentation FromJTexas Instruments PrefacePage Contents Figures Introduction Power Requirements Design FeaturesEvaluation Module Layout Physical Considerations Area 100-Single Device Soic Shows the area 100 schematicArea 200-Dual Device Soic Shows the area 200 schematicArea 300-Quad Device Soic Shows the area 300 schematicArea 300 Schematic-Quad Device Soic 16 pin Maximum Power Dissipation vs Free-Air Temperature Shows component placement for the EVM board EVM Component PlacementEVM Board Layout-Top EVM Board LayoutEVM Board Layout-Bottom Example Circuits Inverting Amplifier Schematic ConventionsVREF1 +1.24 VR111R113R113 Noninverting AmplifierDifferential Amplifier Sallen-Key Low-Pass Filter Wwith Dual Supply Using Area Fo fo Sallen-Key High-Pass FilterSallen-Key High-Pass Filter With Single Supply Using Area Vout +VIN 1 2R212R220 R212R221VREF2 Two Operational Amplifier Instrumentation AmplifierArea Quad Operational Amplifier Instrumentation Amplifier Example Circuits Example Circuits

SLOU061A specifications

Texas Instruments SLOU061A is a comprehensive technical document that provides detailed information about one of the company's key offerings in the realm of integrated circuits. This document highlights important features, technologies, and characteristics of the specified device, ensuring users can make informed decisions during the design and implementation of their projects.

One of the main features of the Texas Instruments SLOU061A is its versatility in application. The device is designed to cater to a wide range of electronic systems, including consumer electronics, industrial equipment, and automotive applications. This versatility is further enhanced by its ability to operate in various environments, withstand extreme temperatures, and support different input/output configurations.

The SLOU061A incorporates advanced semiconductor technologies that facilitate improved performance and efficiency. The device is built on a state-of-the-art fabrication process, which not only enhances its reliability but also minimizes power consumption. This is crucial in today's market where energy efficiency is a significant concern for manufacturers and end-users alike. The integrated power management features allow for dynamic power scaling, helping to optimize energy usage in real-time.

In terms of communication interfaces, the SLOU061A supports several protocols, including I2C, SPI, and UART, thereby allowing seamless integration with various microcontrollers and processors. This compatibility ensures that designers can easily incorporate the device into existing systems or create new designs without the need for significant redesign efforts.

Another notable characteristic of the SLOU061A is its robust protection features. The device is equipped with built-in safeguards against overvoltage, overcurrent, and thermal events, ensuring longevity and reliability in application. This makes it an ideal choice for projects where durability is paramount.

Lastly, Texas Instruments' commitment to customer support is evident in the documentation provided alongside SLOU061A. The datasheets, application notes, and reference designs serve as valuable resources for engineers and developers, providing guidance and best practices for implementation.

In summary, Texas Instruments SLOU061A is a feature-rich integrated circuit that stands out for its versatility, efficiency, communicative capabilities, and robust protection features, making it an excellent choice for various electronic applications across multiple industries.
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