MAXADClite Evaluation Kit

4 ______________________________________________________________________________________

MAXADClite Extended Features

•

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

external reference mode can be selected through

software. Apply an external voltage between 1V and

•

TheinputrangeoftheEVkitsoftwareisselectable

range. The input type is also software selectable

between two single-ended inputs or one differential

input. The default input configuration is single-end-

edunipolar.Indifferentialmode,theinputneedsto

beconnectedonboththeanaloginputs(AIN0and

AIN1)onJ3.RefertotheMAX11644/MAX11645IC

data sheet for more information.

•

TheEVkitboardprovidesanexternal5Vsupplyat

J6 to be used with any external circuit (see Table 3).

•

ThemicrocontrollerontheEVkitboardcanalsobe

programmed with custom firmware through the J2

JTAGconnector(seeTable4).

Table 2. MAXADClite Connector

J5 Description

Table 3. MAXADClite Connector

J6 Description

Table 4. MAXADClite Connector

J2 Description

*Not directly connected to VUSB. Shunt J4 is for VUSB.

J5 PIN NO.

LABEL

FUNCTION

1

VREF

External reference voltage input

to the ADC

2

AGND

Analog ground pin

J6 PIN NO.

LABEL

FUNCTION

1

VUSB

5V, 300mA supply for the external

circuit

2

GND

Digital ground pin

J2 PIN NO.

LABEL

FUNCTION

1

TCK

Test clock

2

GND

Digital ground pin

3

TDO

Test data output

4

+3V3

Supply voltage for reference only

5

TMS

Test mode select

6

RST

MAXQ610microcontrollerresetpin

7

N.C.

No connect

8

VUSB*

5VsupplyfortheJTAGdebug

adapter

9

TDI

Test data input

10

GND

Digital ground pin