Philips Semiconductors Linear Products
Product specification
8-Bit µp-compatible D/A converter
NE/SE5018/5019
DESCRIPTION
PIN CONFIGURATIONS
The NE/SE5018/19 is a complete 8-bit digital-to-analog converter
subsystem on one monolithic chip. The data inputs have input
latches which are controlled by a latch enable pin. The data and
latch enable inputs are ultra-low loading for easy interfacing with all
logic systems. The latches appear transparent when the LE input is
in the low state. When LE goes high, the input data present at the
moment of transition is latched and retained until LE again goes low.
This feature allows easy compatibility with most microprocessors.
F, N Packages
1
2
3
4
5
6
7
8
9
22
21
20
19
18
17
16
15
14
ANALOG GND
AMP COMP
DIGITAL GND
DB0(LSB)
DB1
DB2
DB3
SUM MODE
V
CC+
V
OUT
V
DB4
DB5
CC–
DAC COMP
The chip also comprises a stable voltage reference (5V nominal)
and high slew rate buffer amplifier. The voltage reference may be
externally trimmed with a potentiometer for easy adjustment of
full-scale while maintaining a low temperature coefficient.
BIPOLAR
OFFSET R
DB6
DB7(MSB)
V
V
V
IN
REF
REF
REF
LE 10
13
12
OUT
ADJ
11
NC
The output of the buffer amplifier may be offset so as to provide
bipolar as well as unipolar operation.
1
D Package
1
24
23
22
21
20
19
18
17
16
15
14
13
ANALOG GND
AMP COMP
DIGITAL GND
FEATURES
• 8-bit resolution
2
3
DB0(LSB)
DB1
SUM MODE
4
• Input latches
DB2
V
CC+
5
DB3
V
OUT
• Low-loading data inputs
6
NC
DB4
DB5
7
• On-chip voltage reference
• Output buffer amplifier
V
CC–
8
DB6
DAC COMP
BIPOLAR
OFFSET
NC
9
DB7(MSB)
10
11
12
• Accurate to ± LSB (0.19%)
• Monotonic to 8 bits
NC
LE
V
V
IN
REF
REF
OUT
V
ADJ
REF
• Amplifier and reference both short-circuit protected
• Compatible with 8085, 6800 and many other µPs
NOTE:
1. SOL and non-standard pinout
APPLICATIONS
• Precision 8-bit D/A converters
• A/D converters
• Programmable power supplies
• Test equipment
• Measuring instruments
• Analog-digital multiplication
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
0 to +70°C
ORDER CODE
NE5018/5019F
SE5018/5019F
NE5018/5019N
SE5018/5019N
NE5018/5019D
DWG #
0585B
0585B
0409B
0409B
0173D
22-Pin Ceramic Dual In-Line Package (CERDIP)
22-Pin Ceramic Dual In-Line Package (CERDIP)
22-Pin Plastic Dual In-Line Package (DIP)
22-Pin Plastic Dual In-Line Package (DIP)
24-Pin Small Outline Large (SOL) Package
-55°C to +125°C
0 to +70°C
-55°C to +125°C
0 to +70°C
751
August 31, 1994
853-0845 13721