Datasheet
Evaluates: MAX11044–MAX11049
MAX11046 Evaluation Kit
_______________________________________________________________________________________ 3
Quick Start
Required Equipment
Before beginning, the following equipment is needed:
• MAX11046 EV kit (USB cable included)
• 6V to 8V DC power supply
• 5V signal source
• BNC cable
• A user-supplied Windows 2000/XP/Vista-compatible
PC with a spare USB port
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows operating
system.
Procedure
The MAX11046 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to download
the latest version of the EV kit software,
11046Rxx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on your computer by run-
ning the INSTALL.EXE program inside the temporary
folder. The program files are copied and icons are
created in the Windows Start | Programs menu.
3) Verify that all jumpers are in their default positions,
as shown in Table 1.
4) Connect the 6V power supply to the MAX11046 EV
kit between VDD and GND pads.
5) Turn on the 6V power supply.
6) Set the signal source to generate a 60Hz, 2V
P-P
sinusoidal wave.
7) Using the BNC cable, connect the signal source to
the BNC1 jack (CH0).
8) Connect the USB cable from the PC to the EV kit
board. A New Hardware Found window pops up
when installing the USB driver for the first time. If
you do not see a window that is similar to the one
described above after 30 seconds, remove the
USB cable from the board and reconnect it.
Administrator privileges are required to install the
USB device driver on Windows.
9) Follow the directions of the Found New Hardware
window to install the USB device driver. Manually
specify the location of the device driver to be
C:\Program Files\MAX11046 (default installation
directory) using the Browse button. During device
driver installation, Windows may show a warning
message indicating that the device driver Maxim
uses does not contain a digital signature. This is
not an error condition and it is safe to proceed with
installation.
10) Start the MAX11046 EV kit software by opening its
icon in the Start | Programs menu. The EV kit soft-
ware main window appears, as shown in Figure 1.
11) Press the Convert button in the ADC Conversion
group box. Observe that the data changes under
BNC1 (CH0) in the ADC Value Display group box.
Detailed Description of Software
The evaluation software’s window is shown in Figure 1.
There are three sections on the GUI to control the IC.
They are Setup, ADC Conversion, and Data Logging.
Setup
The MAX11046 EV kit software supports the
MAX11044–MAX11049. The Part Number drop-down
list provides the selection to evaluate these ICs.
The Control Register group box contains four control
bits of the MAX11046 control register.
The Ref. Voltage (V) edit box sets up the reference
voltage of the MAX11046. The voltages are calculated
from this reference voltage value.
The SHDN checkbox controls the SHDN pin of the
MAX11047/MAX11048/MAX11049. When checked,
these parts will go into a low-current shutdown state.
When using an external convert start signal, connect it
to pin 2 of JU8, and check the Ext CONVST checkbox.
For an on-board generated convert start signal,
uncheck the Ext CONVST checkbox and place the
shunt of jumper JU8 in the 1-2 position.
ADC Conversion
The ADC Value Display group box displays the output
data Code and the calculated Voltage values for a sin-
gle sample of all channels on the IC specified in the
Part Number drop-down list. Press the Convert button
to update the samples.
Check the Auto Convert checkbox to continually read
the current ADC value at a rate set by the Time
Interval drop-down list.