19-0168; Rev 3; 7/95
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
____________________________Features
o
o
o
o
o
o
o
o
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
______________Ordering Information
PART
________________________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
REFIN
13
ROFS
22
AGND
20
A0
A1
LDAC
MAX530ACNG
0°C to +70°C
24 Narrow Plastic DIP
±1/2
MAX530BCNG 0°C to +70°C 24 Narrow Plastic DIP
MAX530ACWG 0°C to +70°C 24 Wide SO
MAX530BCWG 0°C to +70°C 24 Wide SO
MAX530ACAG
0°C to +70°C 24 SSOP
MAX530BCAG
0°C to +70°C 24 SSOP
MAX530BC/D
0°C to +70°C Dice*
Ordering Information continued on last page.
* Dice are tested at TA = +25°C, DC parameters only.
±1
±1/2
±1
±1/2
±1
±1
__________________Pin Configuration
D1/D9 1
24 D0/D8
23 VDD
D3/D11 3
22 ROFS
D4 4
23
12
VDD
D5 5
21 RFB
MAX530
20 VOUT
9
CONTROL
LOGIC
NBL
INPUT
LATCH
NBM
INPUT
LATCH
16
24 1 2 3 4 5 6 7
D4 D6
D0/D8 D2/D10
D1/D9 D3/D11 D5 D7
NBH
INPUT
LATCH
D6 6
19 VSS
VSS
D7 7
18 REFOUT
17 REFGND
A1 9
16 LDAC
WR 10
15 CLR
CS 11
12-BIT DAC LATCH
8
19
DGND
A0 8
MAX530
15
CS 11
WR 10
VOUT
DAC LATCH
POWER-ON
RESET
CLR
ERROR
(LSB)
D2/D10 2
17
14
PIN-PACKAGE
TOP VIEW
21 RFB
2.048V
REFERENCE
REFGND
TEMP. RANGE
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
MAX530
_______________General Description
The MAX530 is a low-power, 12-bit, voltage-output digital-to-analog converter (DAC) that uses single +5V or
dual ±5V supplies. This device has an on-chip 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 SSOP (Shrink-Small-Outline-Package) measures only 0.1 square inches, using less board area than
an 8-pin DIP. 12-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, 8-bit, and 16-bit microprocessors. For DACs
with similar features but with a serial data interface, refer
to the MAX531/MAX538/MAX539 data sheet.