THS3125EVM

Series:	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Channels per IC:	2 - Dual
Moisture Sensitivity Level (MSL):	--
Amplifier Type:	Current Feedback
Output Type:	Single-Ended
Slew Rate:	1550 V/µs
-3db Bandwidth:	160MHz
Current - Output / Channel:	440mA
Current - Supply (Main IC):	8.4mA
Voltage - Supply, Single/Dual (±):	10 V ~ 30 V, ±5 V ~ 15 V
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	THS3125

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Introduction

THS3125EVM is an evaluation module (EVM) that provides a complete platform for Texas Instrument\'s (TIs) THS3125 dual-channel, high-speed current-feedback operational amplifier. The THS3125EVM allows designers to evaluate the THS3125 amplifier and evaluate custom designs using the same amplifier. The EVM provides a complete, stand-alone platform for evaluation and testing of the THS3125 amplifier based on the user\'s application requirements. This evaluation board empowers users to measure and evaluate critical electrical performance characteristics of the THS3125 amplifier.

Features

The THS3125EVM features a variety of connectors, jumpers, and measurement circuits to help evaluate the amplifier\'s performance. It includes four SMA connectors (J1, J2, J3, and J4), two BNC connectors (J1 and J2), and a high-performance, direct-coupled analog multiplexer (U1). The THS3125EVM also includes a precision assembly with two precision resistors (R1 and R2) and two buffers (U2 and U4) to enable the evaluation of high-frequency performance using a single-ended connection.

Application Field and Working Principle

The THS3125EVM is suitable for applications that require high common-mode rejection ratio, high speed, high gain, and fast settling time. It can be used in applications such as high-speed video, wireless base stations, instrumentation, and communications. The THS3125EVM helps designers evaluate the THS3125 amplifier performance in various applications and enable high-speed, high-precision design.The THS3125EVM is based on the four-tiered principle structure of two input connections in and out, two resistors, two buffers, and the high-performance, direct-coupled analog multiplexer. Depending upon the design, the input can be connected either single-ended or differential. With single-ended input connection, the inputs are connected to the resistor R1 and R2 that is connected to the high-performance, direct-coupled analog multiplexer (U1). The multiplexer then passes the input signal to the THS3125 amplifier. The output of the amplifier is connected to the buffers (U2 and U4) and available to the output connections.In order to evaluate the high-speed performance of the THS3125 amplifier, with a single-ended connection, two precision resistors (R1 and R2) are connected between the input and the buffer stage. This improves the linearity of the amplifier by increasing the slew rate. The buffers (U2 and U4) then provide the output signal of the THS3125 amplifier to the output connections (J1, J2, J3, and J4).

Conclusion

The THS3125EVM is a high-performance evaluation module that allows designers to quickly evaluate the performance of the THS3125 amplifier. It provides users with a complete platform for evaluation and testing of the THS3125 amplifier and can be used for applications that require high speed, high gain, and fast settling time. The EVM is based on the four-tiered principle structure of two input connections in and out, two resistors, two buffers, and the high-performance, direct-coupled analog multiplexer. In addition, with single-ended input connection, two precision resistors (R1 and R2) are connected between the input and the buffer stage to improve linearity and speed. The THS3125EVM is a versatile evaluation board that can help designers create high-precision designs and evaluate the performance of the THS3125 amplifier.

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