ADT7516 datasheet(32/44 Pages) AD

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ADT7516/ADT7517/ADT7519

Rev. A | Page 32 of 44

DAC D Register LSBs (Read/Write) [Add. = 16h]

This 8-bit read/write register contains the 4/2 LSBs of the

ADT7516/ADT7517 DAC D word, respectively. The value in

this register is combined with the value in the DAC D register

MSBs and converted to an analog voltage on the VOUT-D pin.

On power-up, the voltage output on the VOUT-D pin is 0 V.

Table 34. DAC D (ADT7516) LSBs

LSB

N/A

*Default settings at power-up.

Table 35. DAC D (ADT7517) LSBs

LSB

N/A

*Default settings at power-up.

DAC D Register MSBs (Read/Write) [Add. = 17h]

This 8-bit read/write register contains the eight MSBs of the

DAC D word. The register value combines with the value in the

DAC D register LSBs and converts to an analog voltage on the

VOUT-D pin. On power-up, the voltage output on the VOUT-D pin

is 0 V.

Table 36. DAC D MSBs

MSB

*Default settings at power-up.

Control Configuration 1 Register (Read/Write)

[Add. = 18h]

This configuration register is an 8-bit read/write register that is

used to set up some of the operating modes of the ADT7516/

ADT7517/ADT7519.

Table 37. Control Configuration 1

*Default settings at power-up.

Table 38.

Bit

Function

This bit enables/disables conversions in round robin

and single-channel mode. ADT7516/ADT7517/ADT7519

powers up in round robin mode but monitoring is not

initiated until this bit is set. The default = 0.

0 = Stop monitoring.

1 = Start monitoring.

C2:C1

Selects between the two different analog inputs on Pins

7 and 8. ADT7516/ADT7517/ADT7519 powers up with

AIN1 and AIN2 selected.

00 = AIN1 and AIN2 selected.

01 = Undefined.

10 = External TDM selected.

11 = Undefined.

Selects between digital (LDAC) and analog inputs (AIN3)

on Pin 9. When AIN3 is selected, Bit C3 of the Control

Configuration 3 register is masked and has no effect

until LDAC is selected as the input on Pin 9.

0 = LDAC selected.

1 = AIN3 selected.

Reserved. Write 0 only.

0 = Enable INT/INT output.

1 = Disable INT/INT output.

Configures INT/INT output polarity.

0 = Active low.

1 = Active high.

Power-Down Bit. Setting this bit to 1 puts the

ADT7516/ADT7517/ADT7519 into standby mode. In this

mode, both ADC and DACs are fully powered down, but

the serial interface is still operational. To power up the

part again, just write 0 to this bit.

Control Configuration 2 Register (Read/Write)

[Add. = 19h]

This configuration register is an 8-bit read/write register that is

used to set up some of the operating modes of the ADT7516/

ADT7517/ADT7519.

Table 39. Control Configuration 2

*Default settings at power-up.

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