TLV5628C, TLV5628I

OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS108A – JANUARY 1995 – REVISED NOVEMBER 1995

5

POST OFFICE BOX 655303

data interface (continued)

Table 2 lists the A2, A1, and A0 bits and the selection of the updated DACs. The RNG bit controls the DAC output

range. When RNG = low, the output range is between the applied reference voltage and GND, and when

RNG = high, the range is between twice the applied reference voltage and GND.

Table 1. Ideal Output Transfer

D7

D6

D5

D4

D3

D2

D1

D0

OUTPUT VOLTAGE

0

0

0

0

0

0

0

0

GND

0

0000001

(1/256)

× REF (1+RNG)

•

•••••••

•

•

•••••••

•

0

1111111

(127/256)

× REF (1+RNG)

1

0000000

(128/256)

× REF (1+RNG)

•

•••••••

•

•

•••••••

•

1

1

1

1

1

1

1

1

(255/256)

× REF (1+RNG)

Table 2. Serial Input Decode

A2

A1

A0

DAC UPDATED

0

0

0

DACA

0

0

1

DACB

0

1

0

DACC

0

1

1

DACD

1

0

0

DACE

1

0

1

DACF

1

1

0

DACG

1

1

1

DACH