TLC7225C, TLC7225I

QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

AGND

6

Analog ground

A0, A1

18, 19

I

DAC select inputs

DGND

7

Digital ground

DB0 – DB7

9 – 16

I

Digital DAC data inputs

LDAC

8

Load DAC. A high level simultaneously loads all four DAC registers. DAC registers are transparent when LDAC

is low.

OUTA

2

O

DACA output

OUTB

1

O

DACB output

OUTC

24

O

DACC output

OUTD

23

O

DACD output

REFA

5

I

Voltage reference input to DACA

REFB

4

I

Voltage reference input to DACB

REFC

21

I

Voltage reference input to DACC

REFD

20

I

Voltage reference input to DACD

VDD

22

Positive supply voltage

VSS

3

Negative supply voltage

WR

17

I

Write input selects DAC transparency or latch mode

– 0.3 V to 17 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.3 V to 24 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range between AGND and DGND

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

500 mW

. . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: C suffix

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I suffix

– 40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. Output voltages may be shorted to AGND provided that the power dissipation of the package is not exceeded. Typically short circuit

current to AGND is 50 mA.

2. For operation above TA = 75°C derate linearly at the rate of 2.0 mW/°C.