Rainbow Electronics MAX518 - Manual

_______________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
♦ Single +5V Supply
♦ Simple 2-Wire Serial Interface
♦ I
2 C Compatible
♦ Output Buffer Amplifiers Swing Rail-to-Rail
♦ Space-Saving 8-pin DIP/SO Packages
(MAX517/MAX518)
♦ Reference Input Range Includes Both Supply Rails
(MAX517/MAX519)
♦ Power-On Reset Clears All Latches
♦ 4µA Power-Down Mode
______________Ordering Information
MAX517/MAX518/MAX519
2-Wire Serial 8-Bit DACs with
Rail-to-Rail Outputs
________________________________________________________________ Maxim Integrated Products 1
1
2
3
4
8
7
6
5
OUT1 (REF0)
V
DD
AD0
AD1 SDA
SCL
GND
OUT0
MAX517
MAX518
DIP/SO
TOP VIEW
_________________Pin Configurations
INPUT
LATCH 0
OUTPUT
LATCH 0
START/STOP
DETECTOR
DAC0
INPUT
LATCH 1
8-BIT
SHIFT
REGISTER
OUT0
REF
REF
OUT1
MAX518
8
1
DECODE
ADDRESS
COMPARATOR
DAC1
OUTPUT
LATCH 1
V DD
7
SCL
SDA
AD0 AD1
3
4
6 5
GND
2
________________Functional Diagram
19-0393; Rev 1; 9/02
PART
MAX517ACPA
MAX517BCPA
MAX517ACSA 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP RANGE PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
TUE
(LSB)
1
1.5
1
MAX517BCSA
MAX517BC/D 0°C to +70°C
0°C to +70°C 8 SO
Dice*
1.5
1.5
Ordering Information continued at end of data sheet.
*Dice are specified at T
A = +25°C, DC parameters only.
**Contact factory for availability and processing to MIL-STD-883.
( ) ARE FOR MAX517
Pin Configurations continued at end of data sheet.
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.