MAX147EVKIT-DIP Maxim Integrated Products, MAX147EVKIT-DIP Datasheet - Page 2

• Manufacturer Part Number: MAX147EVKIT-DIP
• Description: EVAL KIT FOR MAX147
• Manufacturer: Maxim Integrated Products

Specifications of MAX147EVKIT-DIP

• Number Of Adc's: 1
• Number Of Bits: 12
• Sampling Rate (per Second): 133k
• Data Interface: Serial
• Inputs Per Adc: 8 Single Ended
• Input Range: ±VREF/2
• Power (typ) @ Conditions: 2.7mW @ 133kSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Utilized Ic / Part: MAX147
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MAX147 Evaluation System/Evaluation Kit
For 3V systems, unplug the MAX666 regulator and con-
nect your 3V power supply to the VDD input pad.
Connect the 3V and 5V input pads to each other to
power the MAX393. (The MAX393 can be powered with
3V or 5V. See Detailed Description of Hardware sec-
tion.) For development flexibility, the EV kit uses a
MAX393 to route the EXTCOM signal to COM or to the
CH0 input. Obtain the 3V DOUT and SSTRB signals
from the header J18, not from the 40-pin connector
(3V-only systems do not require the 74HCT04 level
translator).
For 5V-logic systems, the 74HCT04 translates the
MAX147’s 3V outputs to 5V levels. The MAX147’s input
may be driven directly by 5V logic levels (obtain the 5V
DOUT and SSTRB signals from the 40-pin connector).
For 5V-only applications, refer to the MAX186/MAX188
analog-to-digital converters.
The MAX147 EV system operates from a user-supplied
9V to 20V DC power supply, from which it generates a
5V supply for the µC board. A 3V regulator supplies
power to the MAX147. 3V to 5V level translators are
provided to interface the MAX147 with the µC board.
2
1)
2)
3)
4)
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Copy the files from the distribution disk to your
hard disk or to blank floppy disks. Make sure that
the MAX147 EV kit software is in its own directory.
The necessary files are in the root directory of the
distribution disk, and the source code is in the
SOURCE subdirectory. The SOURCE subdirectory
is not required to operate the EV system.
Carefully connect the boards by aligning the
MAX147 EV kit’s 40-pin header with the µC mod-
ule’s 40-pin connector. Gently press them together,
so that they are flush against one another.
Connect a 9V to 15V DC power source to the µC
module at the terminal block. This is located next to
the on/off switch, in the upper-right corner of the µC
module. Observe the polarity marked on the board.
Connect a cable from the computer’s serial port to
the µC module. For 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, DCD) to confirm that the correct
port is selected.
MAX147 EV System
Systems Using 5V Logic
3V-Only Systems
Quick Start
To evaluate the MAX146, turn off power to the EV kit,
remove the MAX147 IC, and replace it with a
MAX146BCPP. Disable the external reference by
removing jumpers JU2 and JU5. Type MAX147 146 to
start the software.
From the control panel, use the up/down arrow keys to
select the power cycling mode. Power cycling puts the
MAX147 in powerdown (FULLPD) mode between
readings. The MAX147 is always fully powered during
conversions.
From the control panel, use the up/down arrow keys to
select the power cycling mode. The MAX146 supports
FULLPD mode as well as FASTPD mode, where the
_________________________of Software
5)
6)
7)
8)
9)
10) Apply input signals to the CH0–CH7 inputs at the
11) Before turning off power to the MAX147 EV kit, exit
Start the MAX147 software on the IBM PC by setting
the current directory to match the directory contain-
ing the Maxim programs, then type the program
name MAX147 . Do not turn off or disconnect the µC
module while the program is running; if you do, you
will have to restart the program.
The program asks which µC module is in use and
to which port it is connected (the default µC is the
68HC16). For the 80C32 µC module, press µC to
select the 80C32. Press the space bar until the
correct PC serial port is highlighted, and press
ENTER. The MAX147 program is now in terminal-
emulation mode.
Turn on the µC module’s power. The module dis-
plays its log-on banner and tests its RAM.
Download and run the RAM resident program on
the µC module by pressing ALT+L (i.e., hold down
the ALT key as you strike the L key). The program
prompts you for the file name. Press the ENTER
key to download and run the file.
Press ALT+C to switch to the control panel screen
after the RAM resident program is successfully
downloaded.
top edge of the MAX147 EV kit board. Observe
the readout on the screen. Table 3 lists the com-
mands available from the control panel screen.
the program by pressing ALT+X.
Shutdown Power Cycling (MAX147)
Shutdown Power Cycling (MAX146)
Detailed Description
Evaluating the MAX146