Texas Instruments LMH2180 Evaluation Board in Micro SMD LMH2180TMEVAL LMH2180TMEVAL Datenbogen
Produktcode
LMH2180TMEVAL
tp2
LMH2180
Eval
Board
V
DD
GND
GND
V
DD
Power
Supply
4395A
Network
Analyzer
Source
4395A
Network
Analyzer
Input
41800A
Active
Probe
Probe
J1
JR1
Measurement Procedure
Table 2. Bill of Material
Designator
Description
Comment
R1, R5
0603 Resistor
0
Ω
R2, R7
0603 Resistor
30 k
Ω
R3, R6
0603 Resistor
Optional
R4, R8
0603 Resistor
510 k
Ω
C1
Case B, Tantalum Capacitor
10 µF 16V
C2, C5, C8
0603 Capacitor
100 nF
C3, C6
0603 Capacitor
10 nF
C4, C7
0603 Capacitor
Optional
JR1, JR2
Jumper
Header 1x3
J1, J2, J3, J4
Connector
SMA
JP1
Power Connector
pin 1.5 mm, Black
JP2
Power Connector
pin 1.5 mm, Red
U1
WSON-8
LMH2180
5
Measurement Procedure
The performance of the LMH2180 can be measured with the setup given in
Figure 3. Measurement Setup
A supply voltage between 2.5 V to 5.0 V can be set by an external power supply connected to the JP2
(Red) V
(Red) V
DD
pin and JP1 (Black) GND pin. In order to test its functionality, the buffer is tested by looking at
the frequency response. Make sure to enable the buffer that has to be evaluated. The frequency response
is tested by using a network analyzer (4395A). For small signal bandwidth evaluation, the source input
should be set at
is tested by using a network analyzer (4395A). For small signal bandwidth evaluation, the source input
should be set at
−
16 dBm. Be aware to measure the output of the buffer with the probe directly connected
to TP2 or TP4 to measure the highest available bandwidth.
3
SNAA053B – January 2008 – Revised May 2013
AN-1776 LMH2180 Evaluation Board in WSON
Copyright © 2008–2013, Texas Instruments Incorporated