AD5750

Preliminary Technical Data

Rev. P

rC | Page 12 of 25

LFCSP Pin No.

Mnemonic

Description

In Hardware Mode, R2 is Range Decode Bit. This pin, in conjunction with R3, R1, R0

choose the output current/voltage range setting on the part.

11

AD0/R3

In Software Mode, AD0 is Device Addressing bit. This pin, in conjunction with AD1, AD2

allow up to 8 devices to be addressed on one bus.

In Hardware Mode, R3 is Range Decode Bit. This pin, in conjunction with R2, R1, R0

choose the output current/voltage range setting on the part.

12

13

REXT1

REXT 2

temperature drift performance.

When using the Internal RSET resistor these pins must be left floating.

14

VREF

Reference Input

15

VIN

Analog Input (0-4.096v)

16

GND

Ground Connection.

17

Positive Analog Supply Pin.

18

IOUT

Current Output Pin

19

COMP1

Optional compensation capacitor connection for the voltage output buffer

20

COMP2

Optional compensation capacitor connection for the voltage output buffer

21

Negative Analog Supply Pin.

22

Sense connection for the negative voltage output load connection. This pin must stay

within +/-3.0v of ground for correct operation.

23

Buffered Analog Output Voltage.

24

Sense connection for the positive voltage output load connection.

25,26,27,28

NC

No Connect Pin. Can be tied to GND.

29

HW SELECT

This part is used to configure the part to hardware/software mode.

HW SELECT = 0 selects Software Control.

HW SELECT = 1 selects Hardware Control.

30

RESET

Resets the part to its power on state.

31

FAULT/TEMP

In Software mode, acts as a general Fault alert pin. This pin is asserted low when an

open circuit, short circuit, over temperature or PEC Interface Error is detected. Open

drain output, must be connected to a pull-up resistor.

In Hardware mode, acts as an over temp FAULT pin. This pin is asserted low when an

over temperature Error is detected. Open drain output, must be connected to a pull-up

resistor.

32

NC/IFAULT

In Hardware mode, acts as a OPEN circuit Fault alert pin. This pin is asserted low when

an OPEN circuit. Error is detected. Open drain output, must be connected to a pull-up

resistor.

In Software mode, is a NC. Tie to GND.