Texas Instruments AN-1662 LMV551, User Manual

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C5
C6
C2
C1
C3
C4
-V
CC
+V
CC
U1
+
-
R
OUT
C
L
OUT
R
F
-V
CC
1
1
3
2
4
5
R
G
R
T
+IN
-IN
R
IN
+V
CC
1
Non-Inverting gain: 1+
R
F
R
G
+ R
T
User's Guide
SNOA492A – July 2007 – Revised April 2013
AN-1662 LMV551 Evaluation Board
1 Introduction
The 551013116-001 evaluation board, is designed to aid in the characterization of Texas Instruments
LMV551 3 MHz, low voltage, low power, RR output op amp, that is available in the 5-Pin SC70 package.
The board layout allows for either inverting gain or non-inverting gain configurations. Use the evaluation
board as a:
• Guide to high frequency layout
• Tool to aid in device testing and characterization
2 Basic Operation
Figure 1 shows the basic configuration that allows either inverting gain or non-inverting gain operation.
The input signal is brought into the board through SMA connectors for either the inverting or non-inverting
input of the amplifier.
For non-inverting operation, the closed-loop gain is:
(1)
The value of the feedback resistor, R
F
, has a strong influence on AC performance.
Figure 1. Evaluation Board Schematic
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1 SNOA492A – July 2007 – Revised April 2013 AN-1662 LMV551 Evaluation Board
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