AMC7832IPAPR datasheet(5/74 Pages) TI2

5 / 74 page

AMC7832

www.ti.com

SLAS836 – MARCH 2014

Terminal Functions (continued)

TERMINAL

DESCRIPTION

NUMBER

NAME

LV_ADC16 to

41-45

Unipolar analog inputs. These channels are used for general monitoring and their input range is 0 to 2 x VREF.

LV_ADC12

ADC_5,

ADC_4,

Bipolar analog inputs. Typically used to monitor the DAC_D2 to DAC_D5 outputs. The input range of these channels

46-49

ADC_3,

is -12.5-V to +12.5-V.

ADC_2

ADC_1,

Bipolar analog inputs. Typically used to monitor the DAC_C0 to DAC_C1 outputs. The input range of these channels

50-51

ADC_0

is -12.5-V to +12.5-V.

DAC_C1,

52,54

DAC group C. These channels share the same range and clamp voltage.

DAC_C0

Negative analog supply for DAC group C. Sets the power-on-reset and clamp voltage values. Typically tied to AVEE

AVSSC

when the DAC range for group C is set to -10 to 0-V or AGND for the positive output ranges.

This terminal determines the DAC range for DAC group C. If tied to AGND the DAC range is 0 to +5-V or 0 to +10-V.

VRANGEC

Otherwise if tied to +2.5-V (can be tied to REF_OUT terminals) the DAC range is -10 to 0-V.

REF_OUT2

Reference output 2. Can be used to drive the VRANGE inputs.

AVCC_CD

Positive analog power for DAC groups C and D. Must be tied to AVCC_AB.

DAC_D5,

DAC_D4,

58, 60, 63, 64

DAC group D. These channels share the same range and clamp voltage.

DAC_D3,

DAC_D2

Analog ground. Ground reference point for all analog circuitry on the device, AGND. Connect AGND1, AGND2 and

AGND3

AGND3 to the same potential, AGND.

This terminal determines the DAC range for DAC group D. If tied to AGND the DAC range is 0 to 5-V or 0 to 10-V.

VRANGED

Otherwise if tied to +2.5-V (can be tied to REF_OUT terminals) the DAC range is -10 to 0-V.

Negative analog supply for DAC group D. Sets the power-on-reset and clamp voltage values. Typically tied to AVEE

AVSSD

when the DAC range for group D is set to -10 to 0-V or AGND for the positive output ranges.

—

THERMAL PAD

The thermal pad is located on the package underside. Should be tied to AVEE or left unconnected.

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