19-0172; Rev 6; 2/97
+5 V, Lo w -P o w e r, Vo lt a g e -Ou t p u t ,
S e ria l 1 2 -Bit DACs
18/MAX539
_______________Ge n e ra l De s c rip t io n
___________________________Fe a t u re s
♦ Operate from Single +5V Supply
♦ Buffered Voltage Output
The MAX531/MAX538/MAX539 are low-power, voltage-
output, 12-bit digital-to-analog converters (DACs) speci-
fied for single +5V power-supply operation. The MAX531
c a n a ls o b e op e ra te d with ± 5V s up p lie s . The
MAX538/MAX539 draw only 140µA, and the MAX531
(with inte rna l re fe re nc e ) d ra ws only 260µA. The
MAX538/MAX539 come in 8-pin DIP and SO packages,
while the MAX531 comes in 14-pin DIP and SO pack-
ages. All parts have been trimmed for offset voltage,
gain, and linearity, so no further adjustment is necessary.
♦ Internal 2.048V Reference (MAX531)
♦ 140µA Supply Current (MAX538/MAX539)
♦ INL = ±1/2LSB (max)
♦ Guaranteed Monotonic over Temperature
♦ Flexible Output Ranges:
The MAX538’s buffer is fixed at a gain of +1 and the
MAX539’s buffer at a gain of +2. The MAX531’s internal
op amp may be configured for a gain of +1 or +2, as
well as for unipolar or bipolar output voltages. The
MAX531 can also be used as a four-quadrant multiplier
without external resistors or op amps.
0V to V
(MAX531/MAX539)
DD
V
to V
(MAX531)
SS
DD
0V to 2.6V (MAX531/MAX538)
♦ 8-Pin SO/DIP (MAX538/MAX539)
♦ Power-On Reset
For parallel data inputs, see the MAX530 data sheet.
♦ Serial Data Output for Daisy-Chaining
_______________________Ap p lic a t io n s
Battery-Powered Test Instruments
______________Ord e rin g In fo rm a t io n
ERROR
PART
TEMP. RANGE PIN-PACKAGE
Digital Offset and Gain Adjustment
Battery-Operated/Remote Industrial Controls
Machine and Motion Control Devices
Cellular Telephones
(LSB)
±1/2
±1
MAX531ACPD 0°C to +70°C
14 Plastic DIP
14 Plastic DIP
14 SO
MAX531BCPD
MAX531ACSD
MAX531BCSD
MAX531BC/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
±1/2
±1
14 SO
Dice*
±1
________________Fu n c t io n a l Dia g ra m
Ordering Information continued at end of data sheet.
*Dice are specified at T = +25°C only.
A
(MAX531 ONLY)
REFOUT
(MAX531 ONLY)
BIPOFF
REFIN
_________________P in Co n fig u ra t io n s
MAX531
RFB
2.048V
MAX538
MAX539
(MAX531
ONLY)
REFERENCE
(MAX531 ONLY)
TOP VIEW
VOUT
DAC
AGND
V
DD
DIN
SCLK
CS
V
1
2
3
4
8
7
6
5
DD
POWER-UP
RESET
DGND
(MAX531
ONLY)
VOUT
REFIN
AGND
CLR
(MAX531
ONLY)
DAC REGISTER
(12 BITS)
MAX538
MAX539
V
SS
CONTROL
LOGIC
DOUT
(MAX531
ONLY)
CS
SHIFT REGISTER
(12 BITS)
SCLK
DIN
4
BITS
DOUT
DIP/SO
(MSB)
(LSB)
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
