Texas Instruments THS4150 manual Input and Output Setup, ±2. Signal Connections

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2.3Input and Output Setup

1)Ensure that JU3, JU4, and JU1 are not installed (open circuit).

2)Set the function generator to generate a 1 MHz, ±0.5 V (1 VPP) sine wave with no dc offset.

3)Turn off the function generator before proceeding to the next step.

4)Using a BNC-to-SMA cable, connect the function generator to J1 (VI+) on the EVM.

5)Using a BNC-to-SMA cable, connect the oscilloscope to J3 (VO±) on the EVM.

6)Using a BNC-to-SMA cable, connect the oscilloscope to J4 (VO+) on the EVM. Set the oscilloscope to 0.5 V/division and a time-base of 0.2 ∝s/division.

Note: The oscilloscope must be set to use a 50-Ωinput impedance for proper results.

Figure 2±2. Signal Connections

FUNCTION

GENERATOR

1 MHz

OUT

 

1 VPP

 

 

 

 

0 V Offset

 

 

 

 

 

 

50 Ω Source

 

 

 

Impedance

 

 

 

 

 

 

 

J1 Vin+

J3 Vout±

OSCILLOSCOPE 50 Ω Impedance

CH-1 CH-2

THS4150 EVM

J4 Vout+

Figures are not drawn to scale.

Using the THS4150 EVM

2-3

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Contents Users Guide Important Notice Preface Trademarks Contents Figures Introduction and Description Description Evaluation Module FeaturesSchematic of the Populated Circuit Default Configuration THS4150 EVM Specifications±2. Schematic THS4150 EVM SchematicAdditional Sample Schematics ±5. Vicr Level Shifter ±7. Top Layer Silkscreen THS4150 EVM Layout±9. Internal Plane Layer 2 Ground Plane ±11. Bottom Layer 4 Ground and Signal Introduction and Description Using the THS4150 EVM Required Equipment Power Supply Setup±2. Signal Connections Input and Output Setup±3. Driver 1 Output Signal Testing the EVM SetupMeasuring the Frequency Response Power Down VerificationButterworth Filter Butterworth Filter±1. THS4150 EVM Bill of Materials THS4150 EVM Bill of MaterialsP374CTR-ND General High-Speed Amplifier Design Considerations General High-Speed Amplifier Design Considerations

THS4150 specifications

Texas Instruments (TI) is renowned for its innovative analog and mixed-signal technologies, and one of its standout products in the operational amplifier domain is the THS4150. This high-speed, precision, voltage-feedback amplifier has garnered attention in various applications, particularly in high-frequency and low-noise environments.

One of the main features of the THS4150 is its impressive bandwidth. It boasts a bandwidth of 120 MHz, making it suitable for wideband signal amplification in applications like video processing, data conversion, and instrumentation. The amplifier also has a high slew rate of 1600 V/μs, enabling it to respond quickly to rapid signal changes. This characteristic is particularly crucial for applications where maintaining signal integrity is paramount.

The THS4150 operates with a supply voltage range from ±2.5 V to ±9 V, providing flexibility for designers looking to optimize power consumption and performance in battery-operated systems or other sensitive applications. Its low input offset voltage of 0.5 mV ensures accurate signal amplification, making it ideal for precision measurement systems.

Another noteworthy aspect of the THS4150 is its output drive capability. The amplifier can source and sink up to 200 mA of output current, allowing it to drive heavy loads without significant distortion. This feature is beneficial in driving capacitive loads and connecting directly to other stages in an analog signal chain.

In terms of technology, the THS4150 employs TI’s advanced bipolar process, which combines high-speed and low-noise characteristics essential for modern electronics. The amplifier is also designed to minimize power supply rejection, ensuring stable performance even under varying power supply conditions.

The device includes built-in protection features that accommodate various real-world scenarios, such as limited input voltage conditions and short circuits at the output. Consequently, this contributes to its reliability and robustness in demanding applications.

In summary, the Texas Instruments THS4150 is a high-performance voltage-feedback amplifier that stands out due to its wide bandwidth, high slew rate, low offset voltage, and strong output drive capability. These features make it a versatile choice for various applications, including high-speed data acquisition, video signal processing, and low-noise amplification. As designers seek to create sophisticated systems requiring reliable signal integrity and performance, the THS4150 is poised to be an invaluable component in their toolbox.
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