Texas Instruments THS3115 EVM, Руководство пользователя

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Required Equipment
2-2
2.1 Required Equipment
-
One double-output dc power supply (
±
15 V, 1-A output minimum)
-
One single-output dc power supply (+5V, 100-mA output minimum) –
referred to in this document as a
shutdown supply
-
Two dc current meters with resolution to 1 mA and capable of the
maximum current from the dc power supply. If available, set the current
limit on the dc power supply to 100 mA.
NOTE: Some power supplies incorporate current meters which may be
applicable to this test.
-
50-
W
source impedance function generator (1-MHz, 10-V
PP
sine wave)
-
Oscilloscope (50-MHz bandwidth minimum, 50-
W
input impedance).
2.2 Power Supply Setup for
±
15 Vdc
1) Set the dc power supply to
±
15 V.
2) Make sure the dc power supply is turned off before proceeding to the next
step.
3) Connect the positive (+) terminal of the power supply to the positive (+)
terminal of the current meter number 1.
4) Connect the negative (–) terminal of the current meter number 1 to the +VS
terminal of the EVM (J1).
5) Connect the common ground terminal of the power supply to the ground
(GND) terminal on the EVM (J2).
6) Connect the negative (–) terminal of the power supply to the negative (–)
terminal of the second current meter.
7) Connect the positive (+) terminal of the current meter number 2 to the --VS
of the EVM (J3).
8) Connect the negative terminal (--) of the shutdown supply to the GND ter-
minal of the EVM (J2).
9) Connect one end of a test lead to the positive terminal (+) of the shutdown
supply. Connect the other end to the shutdown terminal of the EVM (J10).