DAC7642VF datasheet(5/25 Pages) TI1

5 / 25 page

DAC7642, DAC7643

SBAS233

www.ti.com

R/W

Enabled by CS, Controls Data Read from and Write

to the Input Registers.

LOADDACS

DAC Output Registers Load Control. Rising edge

triggered. Transfers Data from the Input Registers to

the DAC Registers, Updating the DAC Output.

RST

Reset, Rising Edge Triggered. DAC7642 resets to

mid-scale, DAC7643 resets to zero. (Resets Both

Input Registers and DAC Registers)

DACSEL

Enabled by CS. Selects the individual DAC Input

Registers. (LOW Selects Register A, HIGH Selects

VSS

Negative Power Supply

VOUTB

DAC B Voltage Output

VOUTB Sense

DAC B Output Amplifier Inverting Input. Used to

close the feedback loop at the load.

VREFH Sense

DAC A and B Reference High Sense Input

VREFH

DAC A and B Reference High Input

VOUTL

DAC A and B Reference Low Input

VREFL Sense

DAC A and B Reference Low Sense Input

VOUTA Sense

DAC A Output Amplifier Inverting Input. Used to

close the feedback loop at the load.

VOUTA

DAC A Output Voltage

Top View

LQFP

PIN CONFIGURATION

GND

DB15

DB14

DB13

DB12

DB11

DB10

DACSEL

RST

LOADDACS

R/W

DB0

DB1

DAC7642

DAC7643

PIN DESCRIPTIONS

NAME

DESCRIPTION

1VCC

Positive Power Supply

GND

Ground

DB15

Data Bit 15, MSB

DB14

Data Bit 14

DB13

Data Bit 13

DB12

Data Bit 12

DB11

Data Bit 11

DB10

Data Bit 10

DB9

Data Bit 9

DB8

Data Bit 8

DB7

Data Bit 7

DB6

Data Bit 6

DB5

Data Bit 5

DB4

Data Bit 4

DB3

Data Bit 3

DB2

Data Bit 2

DB1

Data Bit 1

DB0

Data Bit 0, LSB

Chip Select, Active LOW

NAME

DESCRIPTION

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