MAX11270 datasheet(4/34 Pages) MAXIM

4 / 34 page

Maxim Integrated │ 4

www.maximintegrated.com

Evaluates: MAX11270

MAX1127X Family Evaluation Kit

Table 1. ZedBoard Jumper Settings (Optional)

Table 2. MAX1127X EV Kit User Configuration Jumper Settings*

JUMPER

SHUNT

POSITION

DESCRIPTION

J18

1-2

VDDIO set for 3.3V

JP11

2-3

Boot from SD card

JP10

1-2

JP9

1-2

JP8

2-3

JP7

2-3

JP10

—

J12

—

SD card installed

J20

—

Connected to 12V wall adapter

SW8

Off

ZedBoard power switch, off while connecting boards

JUMPER

SHUNT

POSITION

DESCRIPTION

J2 (Red)

1-2

Connects the +10V rail to test point +10VEXT for external power (op amp + supply)

2-3*

Connects the +10V rail to LDO U2 (op amp + supply)

J3 (Red)

1-2

Connects the +15V rail to test point +15EXT for external power (powers U2)

2-3*

Connects the +15V rail to isolation transformer (powers U2)

J4 (Red)

1-2

Set ADC DVDD to +3.3V

2-3*

Set ADC DVDD to +2.0V

J5 (Red)

1-2*

Connect ADC AVSS to GND (unipolar mode – also set J8 for unipolar)

2-3

Connect ADC AVSS to -1.8V (bipolar mode – also set J8 for bipolar)

J6 (Black)

1-2

Apply an offset of ADC_REFP (2.5V default) to amplifier U24

2-3

Apply an offset of 2.5V to amplifier U24

Open*

No offset for amplifier U24

J7 (Black)

1-2

Apply an offset of ADC_REFP (2.5V default) to amplifier U27

2-3

Apply an offset of 2.5V to amplifier U27

Open*

No offset for amplifier U27

J8 (Red)

1-2

Connect ADC AVDD to +1.8V (bipolar mode)

2-3*

Connect ADC AVDD to 3.6V (unipolar mode)

J15 (Red)

1-2*

Connects ZedBoard +12V to main power supply (U3). Diode D2 protects supplies.

Open

Disconnects ZedBoard +12V from main power supply

J17 (Red)

1-2

Connects U5 input to GND

3-4

Connects U5 input to test point -15VEXT for external power

5-6*

Connects U5 input to isolation transformer

J18 (Red)

1-2

Do not connect

3-4

Do not connect

5-6

Connects U5 output to GND, which sets the reference for the -10V supply (op amp - supply)

J20 (Red)

1-2*

Connects on-board FTDI chip to 3.3V, necessary for standalone mode

Open

Disconnects on-board FTDI chip power. This jumper does not interfere with the ZedBoard.

J21 (Black)

1-2*

Drive ADC REFP pin with on-board voltage reference

2-3

Drive ADC REFP pin with external voltage reference

MAX11270 Datasheet(PDF) 4 Page - Maxim Integrated Products

MAX11270 Datasheet(HTML) 4 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Datasheet Download

Link URL