Philips Semiconductors
Product specification
Octuple 6-bit DACs with
FEATURES
•
Eight DACs with 6-bit resolution
•
Adjustable common output swing
•
Push-pull outputs
•
Outputs short-circuit protected
•
Three programmable slave address bits
•
Large supply voltage range
•
Low temperature coefficient.
GENERAL DESCRIPTION
I
2
C-bus
TDA8444; TDA8444T;
TDA8444AT
The interface circuit is a bipolar IC in a DIP16, SO16, or
SO20 package made in an I2L-compatible 18 V process.
QUICK REFERENCE DATA
SYMBOL
V
CC
I
CC
P
V
VMAX
V
o(DACn)
V
o(DACn)(max)
I
source(min)
I
sink(min)
PARAMETER
supply voltage
supply current
power dissipation
input effective voltage
DAC output voltage
minimum DAC source current
minimum DAC sink current
V
MAX
= V
CC
data = 1FH
data = 1FH
V
CC
= 12 V
The TDA8444 contains eight programmable 6-bit DAC
outputs, an I
2
C-bus slave receiver with three (two for
SO16) programmable address bits and one input (V
MAX
) to
set the maximum output voltage. Each DAC can be
programmed separately by a 6-bit word to 64 values, but
V
MAX
determines the maximum output voltage for all
DACs. The resolution will be approximately
1
⁄
64
V
MAX
.
At power-on all DACs are set to their lowest value.
CONDITIONS
−
−
1
MIN.
4.5
12
14
TYP.
−
−
MAX.
13.2
UNIT
V
mA
mW
V
V
V
mA
mA
170
−
−
−
−
V
CC
−
2.0
V
CC
−
0.5
−
−
0.1
−
2
2
maximum DAC output voltage 1 < V
MAX
< V
CC
−
2.0
V
MAX
+ 0.3
−
ORDERING INFORMATION
TYPE
NUMBER
TDA8444
TDA8444T
TDA8444AT
PACKAGE
NAME
DIP16
SO16
SO20
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil); long body
plastic small outline package; 16 leads; body width 7.5 mm
plastic small outline package; 20 leads; body width 7.5 mm
VERSION
SOT38-1
SOT162-1
SOT163-1
1999 Apr 29
2
PHILIPS [ NXP SEMICONDUCTORS ]
