19-0393; Rev 1; 9/02
2-Wire Serial 8-Bit DACs with
Rail-to-Rail Outputs
_______________General Description
____________________________Features
ꢀ Single +5V Supply
ꢀ Simple 2-Wire Serial Interface
ꢀ I2C Compatible
The MAX517/MAX518/MAX519 are 8-bit voltage output
digital-to-analog converters (DACs) with a simple 2-wire
serial interface that allows communication between
multiple devices. They operate from a single 5V supply
and their internal precision buffers allow the DAC out-
puts to swing rail-to-rail.
ꢀ Output Buffer Amplifiers Swing Rail-to-Rail
ꢀ Space-Saving 8-pin DIP/SO Packages
(MAX517/MAX518)
The MAX517 is a single DAC and the MAX518/MAX519
are dual DACs. The MAX518 uses the supply voltage
as the reference for both DACs. The MAX517 has a ref-
erence input for its single DAC and each of the
MAX519’s two DACs has its own reference input.
ꢀ Reference Input Range Includes Both Supply Rails
(MAX517/MAX519)
ꢀ Power-On Reset Clears All Latches
ꢀ 4µA Power-Down Mode
The MAX517/MAX518/MAX519 feature a serial interface
and internal software protocol, allowing communication
at data rates up to 400kbps. The interface, combined
with the double-buffered input configuration, allows the
DAC registers of the dual devices to be updated indi-
vidually or simultaneously. In addition, the devices can
be put into a low-power shutdown mode that reduces
supply current to 4µA. Power-on reset ensures the DAC
outputs are at 0V when power is initially applied.
______________Ordering Information
TUE
(LSB)
PART
TEMP RANGE
PIN-PACKAGE
MAX517ACPA
MAX517BCPA
MAX517ACSA
MAX517BCSA
MAX517BC/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
8 Plastic DIP
8 Plastic DIP
8 SO
1
1.5
1
8 SO
1.5
1.5
Dice*
The MAX517/MAX518 are available in space-saving 8-
pin DIP and SO packages. The MAX519 comes in 16-
pin DIP and SO packages.
Ordering Information continued at end of data sheet.
*Dice are specified at T = +25°C, DC parameters only.
A
**Contact factory for availability and processing to MIL-STD-883.
________________________Applications
Minimum Component Analog Systems
Digital Offset/Gain Adjustment
________________Functional Diagram
V
7
DD
Industrial Process Control
Automatic Test Equipment
Programmable Attenuators
REF
1
INPUT
LATCH 0
OUTPUT
LATCH 0
DAC0
OUT0
_________________Pin Configurations
REF
8
INPUT
LATCH 1
OUTPUT
LATCH 1
DAC1
OUT1
TOP VIEW
1
2
3
4
8
7
6
5
OUT0
GND
SCL
8-BIT
SHIFT
REGISTER
OUT1 (REF0)
MAX518
ADDRESS
COMPARATOR
V
DD
MAX517
MAX518
3
4
AD0
AD1
SCL
SDA
SDA
START/STOP
DETECTOR
DECODE
DIP/SO
( ) ARE FOR MAX517
Pin Configurations continued at end of data sheet.
6
5
2
GND
AD0 AD1
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.