MAX1416EVC16 Maxim Integrated, MAX1416EVC16 Datasheet - Page 3

• Manufacturer Part Number: MAX1416EVC16
• Description: Analog to Digital Converters - ADC MAX1416 Evaluation Kit/Evaluation System
• Manufacturer: Maxim Integrated

Specifications of MAX1416EVC16

• Number Of Channels: 2
• Architecture: Sigma-Delta
• Conversion Rate: 0.5 KSPs
• Resolution: 16 bit
• Input Type: Differential
• Interface Type: QSPI, Serial (SPI, Microwire)
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 762 mW
• Number Of Converters: 1
• Voltage Reference: 3.5 V

The MAX1416 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power until all connec-
tions are completed.
1) Visit the Maxim website (www.maxim-ic.com/evkitsoft-
2) Install the MAX1416 EV kit software on your computer
3) Ensure that jumpers JU1, JU2, and JU4 are closed
4) Carefully connect the boards by aligning the 40-pin
5) Connect the +5VDC power source to the MAX1416
6) Connect the +7VDC to +20VDC power source to the
7) Connect a cable from the computer’s serial port to
8) Start the MAX1416 program by opening its icon in the
9) Turn on the power supplies and slide SW1 to the ON
10) When the main window appears (Figure 1), click
11) Apply input signals between AIN1+ and AIN1-. Tie
ware) to download the latest version of the EV kit soft-
ware. Save the EV kit software to a temporary folder
and uncompress the file (if it is a .zip file).
by running the INSTALL.EXE program. The program
files are copied and icons are created for them in the
Windows Start | Programs menu.
and that jumper JU3 is in the 1-2 position (see Table
1 for jumper settings).
header of the MAX1416 EV kit with the 40-pin con-
nector of the 68HC16MODULE-DIP module. Gently
press them together. The two boards should be flush
against one another.
EV kit at terminal block TB1. Observe the polarity
marked on the board.
µC module at the terminal block located next to the
on/off switch, along the top-edge of the µC module.
Observe the polarity marked on the board.
the µC module. If using a 9-pin serial port, use a
straight-through, 9-pin female-to-male cable. If the
only available serial port uses a 25-pin connector, a
standard 25-pin to 9-pin adapter is required. The
EV kit software checks the modem status lines
(CTS, DSR, and DCD) to confirm that the correct
port has been selected.
Start | Programs menu.
position. Select the correct serial port and press the
OK button. The program will automatically download
KIT1416.C16 to the module.
Initialize and then Calibrate.
the unused analog input (AIN2+ and AIN2-) to GND.
Click Read or check Auto Read. Observe the code
and voltage readout on the screen.
MAX1416 Evaluation Kit/Evaluation System
_______________________________________________________________________________________
Procedure
The main window of the evaluation software controls the
features of the MAX1416. The Measurement tab is used
to initialize, calibrate, and read data. Prior to reading the
MAX1416, select the appropriate MCLK master-clock
input source and click Initialize. The FS1 and FS0 bits in
the clock register determine the data rate.
The Initialize button writes the clock register INT,
CLKDIS, CLKDIV, CLK, and FS bits, and then writes to
the setup register with FSYNC = 1. The exact value
written to the clock register depends on the MCLK
input setting, and can be viewed by bringing up the
Clock tab after initialization.
The Calibrate button first writes the setup register with
FSYNC = 1, then writes setup with MD = 01 (self-cali-
bration mode) and FSYNC = 0. After
the MAX1416 setup register automatically returns to
MD = 00 and FSYNC = 0.
The Setup, Clock, Offset, and Gain tabs provide
read/write access to each of the registers. See
Figures 2–5.
The Comms and Data (Figure 6) tab provides access
to the Standby bit. The comms registers RS2, RS1,
RS0, and R/W bits are automatically set by each regis-
ter’s read and write buttons. The channel select bits
CH1 and CH0 are determined by which channel is
selected on the Measurement tab.
To collect data, go to the Measurement tab and click
Sample. Select the sample size and click Begin
Sampling. After the samples have been collected, the
data is automatically uploaded to the host and is
graphed. Once displayed, the data can be saved to a
file (optional).
Data in the real-time graph and in the sampled data
graphs can be saved to a file (Figures 7–8). Only the
raw output codes are saved, but voltages can be
inferred based on the reference voltage and the maxi-
mum code value.
To enter standby mode, first make sure that Auto Read
is not checked in the Measurement tab sheet. Then go
to the Comms and Data tab and check Power Down,
then click Write.
Evaluating Power-Down Mode
Detailed Description
Saving Graphs to Disk
of Software
DRDY returns low,
Sampling
3