MAXADCLITE+ Maxim Integrated Products, MAXADCLITE+ Datasheet - Page 3

• Manufacturer Part Number: MAXADCLITE+
• Description: Data Conversion Modules & Development Tools MAX11645 EVAL KIT
• Manufacturer: Maxim Integrated Products
• Type: A/Dr

Specifications of MAXADCLITE+

• Product: Data Conversion Development Tools
• Resolution: 12 bit
• Interface Type: USB, I2C, SPI
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• For Use With/related Products: MAX11645
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAXADClite+ EV kit board is loaded with the
MAX11645, Maxim’s smallest, lowest power, 12-bit ADC.
The ADC communicates through an I
the 16-bit RISC MAXQ610 microcontroller. This micro-
controller communicates to the PC through an SPI-USB
peripheral controller (Figure 2).
The EV kit microcontroller is preloaded with firmware
that communicates with the EV kit GUI application. Upon
receiving the login command from the GUI, it acquires
data from the ADC over the I
PC for display and further analysis.
•
Figure 2. MAXADClite+ Block Diagram
Table 2. MAXADClite+ Connector J5
Description
Table 3. MAXADClite+ Connector J6
Description
J5 PIN NO.
J6 PIN NO.
Detailed Description of Hardware
The ADC on the EV kit board can be selected for
internal or external reference mode. The internal
2.048V reference is the default configuration. The
1
2
1
2
MAXADClite+ Extended Features
LABEL
LABEL
VUSB
AGND
GND
VREF
_______________________________________________________________________________________
AIN0
AIN1
5V, 300mA supply for the external
circuit
Digital ground pin
External reference voltage input
to the ADC
Analog ground pin
2
C bus and sends it to the
MAX11645
ADC
FUNCTION
FUNCTION
2
C interface to
I
2
C
MAXADClite+ Evaluation Kit
MAXQ610B
µC
•
•
•
Table 4. MAXADClite+ Connector J2
Description
*Not directly connected to VUSB. Shunt J4 is for VUSB.
J2 PIN NO.
external reference mode can be selected through
software. Apply an external voltage between 1V and
V
The input range of the EV kit software is selectable
between a unipolar 0 to V
range. The input type is also software selectable
between two single-ended inputs or one differential
input. The default input configuration is single-end-
ed unipolar. In differential mode, the input needs to
be connected on both the analog inputs (AIN0 and
AIN1) on J3. Refer to the MAX11644/MAX11645 IC
data sheet for more information.
The EV kit board provides an external 5V supply at
J6 to be used with any external circuit (see Table 3).
The microcontroller on the EV kit board can also be
programmed with custom firmware through the J2
JTAG connector (see Table 4).
10
DD
1
2
3
4
5
6
7
8
9
SPI
at J5 (see Table 2).
LABEL
VUSB*
+3V3
GND
GND
TCK
TDO
TMS
N.C.
RST
TDI
PERIPHERAL
MAX3420E
SPI-USB
Test clock
Digital ground pin
Test data output
Supply voltage for reference only
Test mode select
MAXQ610 microcontroller reset pin
No connect
5V supply for the JTAB debug
adapter
Test data input
Digital ground pin
PC
MINI-USB
TYPE B
REF
or ±V
FUNCTION
REF
/2 differential
3