TDA8444 Datasheet, PDF (2/16 Pages) NXP Semiconductors – Octuple 6-bit DACs with I2C-bus

Philips Semiconductors
Octuple 6-bit DACs with I²C-bus
Product specification
TDA8444; TDA8444T;
TDA8444AT
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
The interface circuit is a bipolar IC in a DIP16, SO16, or
SO20 package made in an I2L-compatible 18 V process.
The TDA8444 contains eight programmable 6-bit DAC
outputs, an I²C-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 ¹â„₆₄V_MAX.
At power-on all DACs are set to their lowest value.
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
CONDITIONS
supply voltage
supply current
power dissipation
V_CC = 12 V
input effective voltage
DAC output voltage
maximum DAC output voltage
minimum DAC source current
V_MAX = V_CC
1 < V_MAX < V_CC − 2.0
data = 1FH
minimum DAC sink current data = 1FH
MIN.
4.5
−
−
1
0.1
−
2
2
TYP.
MAX. UNIT
12
13.2
V
14
−
mA
170
−
mW
−
V_CC − 2.0 V
−
V_CC − 0.5 V
V_MAX + 0.3 −
V
−
−
mA
−
−
mA
ORDERING INFORMATION
TYPE
NUMBER
TDA8444
TDA8444T
TDA8444AT
NAME
DIP16
SO16
SO20
PACKAGE
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