19-0279; Rev 0; 8/94
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
________________________Applications
Battery-Powered Data-Conversion Products
Minimum Component-Count Analog Systems
Digital Offset/Gain Adjustment
Industrial Process Control
Arbitrary Function Generators
Automatic Test Equipment
Microprocessor-Controlled Calibration
________________Functional Diagram
REFOUT
18
15
CLR
8
A0
9
A1
11
CS
WR 10
16
LDAC
o
o
o
o
______________Ordering Information
PART
MAX503CNG
MAX503CWG
MAX503CAG
MAX503ENG
MAX503EWG
MAX503EAG
TEMP. RANGE
PIN-PACKAGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
24 Narrow Plastic DIP
24 Wide SO
24 SSOP
24 Narrow Plastic DIP
24 Wide SO
24 SSOP
Refer to the MAX530 for military temperature or die equivalents.
__________________Pin Configuration
D7/S1 1
20
VOUT
DAC
23
24 D6/S0
D8/D0 2
23 VDD
D9/D1 3
21 RFB
POWER-ON
RESET
o
o
Buffered Voltage Output
Internal 2.048V Voltage Reference
Operates from Single 5V or Dual ±5V Supplies
Low Power Consumption:
250µA Operating Current
40µA Shutdown-Mode Current
SSOP Package Saves Space
Relative Accuracy: ±1/2 LSB Max Over
Temperature
Guaranteed Monotonic Over Temperature
4-Quadrant Multiplication with No External
Components
Power-On Reset
Double-Buffered Parallel Logic Inputs
TOP VIEW
REFIN ROFS
13
22
2.048V
REFERENCE
17
REFGND
14
AGND
____________________________Features
o
o
o
o
22 ROFS
D2 4
D3 5
VDD
21 RFB
MAX503
20 VOUT
CONTROL
LOGIC
NBL
INPUT
LATCH
NBM
INPUT
LATCH
24 1 2 3 4 5 6 7
D2 D4
D6/S0 D8/D0
D7/S1 D9/D1 D3 D5
NBH
INPUT
LATCH
DGND
VSS
19 VSS
D5 7
18 REFOUT
17 REFGND
A1 9
16 LDAC
WR 10
15 CLR
CS 11
19
10-BIT DAC LATCH
DAC LATCH
D4 6
A0 8
MAX503
12
14 AGND
DGND 12
13 REFIN
DIP/SO/SSOP
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX503
_______________General Description
The MAX503 is a low-power, 10-bit, voltage-output digitalto-analog converter (DAC) that uses single 5V or dual ±5V
supplies. This device has an internal voltage reference plus
an output buffer amplifier. Operating current is only 250µA
from a single 5V supply, making it ideal for portable and
battery-powered applications. In addition, the shrink smalloutline package (SSOP) measures only 0.1 square inches,
using less board area than an 8-pin DIP. 10-bit resolution is
achieved through laser trimming of the DAC, op amp, and
reference. No further adjustments are necessary.
Internal gain-setting resistors can be used to define a DAC
output voltage range of 0V to +2.048V, 0V to +4.096V, or
±2.048V. Four-quadrant multiplication is possible without
the use of external resistors or op amps. The parallel logic
inputs are double buffered and are compatible with 4-bit, 8bit, and 16-bit microprocessors. For a hardware and software compatible 12-bit upgrade, refer to the MAX530 data
sheet. For DACs with similar features but with a serial data
interface, refer to the MAX504/MAX515 data sheet.
