MAX517 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 2-Wire Serial 8-Bit DACs with Rail-to-Rail Outputs

19-0393; Rev 0; 5/95
2-Wire Serial 8-Bit DACs with
Rail-to-Rail Outputs
_______________General Description
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.
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.
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.
The MAX517/MAX518 are available in space-saving 8-
pin DIP and SO packages. The MAX519 comes in 16-
pin DIP and SO packages.
________________________Applications
Minimum Component Analog Systems
Digital Offset/Gain Adjustment
Industrial Process Control
Automatic Test Equipment
Programmable Attenuators
____________________________Features
o Single +5V Supply
o Simple 2-Wire Serial Interface
o I²C Compatible
o Output Buffer Amplifiers Swing Rail-to-Rail
o Space-Saving 8-pin DIP/SO Packages
(MAX517/MAX518)
o Reference Input Range Includes Both Supply Rails
(MAX517/MAX519)
o Power-On Reset Clears All Latches
o 4µA Power-Down Mode
______________Ordering Information
PART
MAX517ACPA
MAX517BCPA
MAX517ACSA
MAX517BCSA
MAX517BC/D
TEMP. RANGE
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
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
Dice*
TUE
(LSB)
1
1.5
1
1.5
1.5
Ordering Information continued at end of data sheet.
*Dice are specified at TA = +25°C, DC parameters only.
**Contact factory for availability and processing to MIL-STD-883.
________________Functional Diagram
INPUT
LATCH 0
OUTPUT
LATCH 0
VDD
7
REF
DAC0
1
OUT0
_________________Pin Configurations
TOP VIEW
INPUT
LATCH 1
OUTPUT
LATCH 1
REF
DAC1
8
OUT1
OUT0 1
GND 2
SCL ³
SDA ⁴
MAX517
MAX518
8 _{OUT1 (REF0)}
7 V_DD
6 AD0
5 _AD1
DIP/SO
( ) ARE FOR MAX517
Pin Configurations continued at end of data sheet.
3
SCL
SDA ₄
8-BIT
SHIFT
REGISTER
DECODE
65
AD0 AD1
ADDRESS
COMPARATOR
START/STOP
DETECTOR
MAX518
2
GND
________________________________________________________________ Maxim Integrated Products 1
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