2
dc2033af
DEMO MANUAL DC2033A
Quick start setup
The Quick Start Setup of Figure 3, shows the basic con-
nections required for getting familiar with a DC2033A.
An ammeter is used to measure the load current to a 5Ω
load or an active load. To confirm the operation of the
LT6110, connect a wire jumper from VOUT1 to regulator.
This jumper connects the power supply 5V to the ROUT
100Ω pull-up resistor. The voltmeter across ROUT is for
monitoring the I
IOUT
current. A DC2033A is assembled with
a 402Ω R
IN1
resistor to provide quick testing convenience.
The R
IN1
resistor and the V
SENSE
voltage set the LT6110
output current (I
IOUT
). To begin, adjust the power supply
for 1A load current. With 1A load current flowing through
the internal 20mΩ R
SENSE
resistor and 100µV V
OS
, the
I
IOUT
current is 50µA, (1A
• 20
mΩ + 100µV)/402Ω. The
voltmeter should read 5mV (50µA
• 100Ω) ±
the R
SENSE
,
V
OS
, R
IN1
, R
OUT
and I
IOUT
errors. Figure 4 shows the Quick
Setup schematic and I
IOUT
equations.
performance summary
Specifications are at T
A
= 25°C
PARAMETER
MIN
TYP
MAX
UNITS
Supply Range (V
+
to V
–
)
2
50
V
Amplifier Input Offset Voltage, V
OS
100
300
µV
IOUT Current Error (Does Not Include V
OS
or R
IN
Errors)
I
+IN
= 10µA
I
+IN
= 100µA
I
+IN
= 1mA
0.6
0.4
1.5
1.6
1
2.5
%
%
%
IMON Current Error
(3 •
I
+IN
)
I
+IN
= 100µA
1.5
3
%
IOUT Voltage Range
0.4
V
+
V
IOUT Current Error Change for IOUT Voltage 0.4V to 3.5V
0.2
%/V
IMON Current Error Change for IMON Voltage 0V to 3.1V
0.2
%/V
IOUT Signal Bandwidth
I
+IN
= 100µA
180
kHz
Supply Current
16
30
µA
Figure 3. Quick Start Setup
Downloaded from
Downloaded from
