MAX509 Maxim, MAX509 Datasheet
MAX509
Manufacturer Part Number
MAX509
Description
Quad / Serial 8-Bit DACs with Rail-to-Rail Outputs
Manufacturer
Maxim
Datasheet
1.MAX509.pdf
(20 pages)
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The MAX509/MAX510 are quad, serial-input, 8-bit volt-
age-output digital-to-analog converters (DACs). They
operate with a single +5V supply or dual ±5V supplies.
Internal, precision buffers swing rail-to-rail. The refer-
ence input range includes both supply rails.
The MAX509 has four separate reference inputs, allow-
ing each DAC's full-scale range to be set independently.
20-pin DIP, SSOP, and SO packages are available. The
MAX510 is identical to the MAX509 except it has two ref-
erence inputs, each shared by two DACs. The MAX510
is housed in space-saving 16-pin DIP and SO packages.
The serial interface is double-buffered: A 12-bit input
shift register is followed by four 8-bit buffer registers and
four 8-bit DAC registers. A 12-bit serial word is used to
load data into each register. Both input and DAC regis-
ters can be updated independently or simultaneously
with single software commands. Two additional asyn-
chronous control pins provide simultaneous updating
(LDAC) or clearing (CLR) of input and DAC registers.
The interface is compatible with Microwire
QSPI
compatible. A buffered data output provides for read-
back or daisy-chaining of serial devices.
19-0155; Rev 2; 1/96
_______________Functional Diagrams
Microwire is a trademark of National Semiconductor. SPI and QSPI are trademarks of Motorola.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_______________General Description
DOUT
Functional Diagrams continued at end of data sheet.
CS DIN SCLK
REGISTER
CONTROL
TM
CLR
12-BIT
SHIFT
SR
. All digital inputs and outputs are TTL/CMOS
LDAC
CONTROL
DECODE
AGND
DGND V
INPUT
REG A
INPUT
REG B
INPUT
REG C
INPUT
REG D
________________________________________________________________ Maxim Integrated Products
MAX509
SS
REG C
REG D
REG A
REG B
V
DAC
DAC
DAC
DAC
DD
REFB
REFC
DAC A
DAC C
REFA
DAC B
DAC D
REFD
TM
and SPI/
OUTD
OUTC
OUTA
OUTB
with Rail-to-Rail Outputs
Quad, Serial 8-Bit DACs
____________________________Features
Ordering Information continued on last page.
* Dice are specified at +25°C, DC parameters only.
**Contact factory for availability and processing to MIL-STD-883.
_________________Pin Configurations
______________Ordering Information
MAX509ACPP
MAX509BCPP
MAX509ACWP
MAX509BCWP
MAX509ACAP
MAX509BCAP
MAX509BC/D
Single +5V or Dual ±5V Supply Operation
Output Buffer Amplifiers Swing Rail-to-Rail
Reference Input Range Includes Both Supply Rails
Calibrated Offset, Gain, and Linearity (1LSB TUE)
10MHz Serial Interface, Compatible with SPI, QSPI
(CPOL = CPHA = 0) and Microwire
Double-Buffered Registers for Synchronous
Updating
Serial Data Output for Daisy-Chaining
Power-On Reset Clears Serial Interface and Sets
All Registers to Zero
Pin Configurations continued at end of data sheet.
TOP VIEW
PART
DGND
OUTB
OUTA
AGND
DOUT
LDAC
REFB
REFA
N.C.
V
SS
TEMP. RANGE
10
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
0°C to +70°C
0°C to +70°C
1
2
3
4
5
6
7
8
9
DIP/SO/SSOP
MAX509
PIN-PACKAGE
20 Plastic DIP
20 Plastic DIP
20 Wide SO
20 Wide SO
20 SSOP
20 SSOP
Dice*
20
19
18
17
16
15
14
13
12
11
OUTC
OUTD
V
REFC
REFD
CS
N.C.
DIN
SCLK
CLR
DD
(LSB)
±1
±1 1/2
±1
±1 1/2
±1
±1 1/2
±1 1/2
TUE
1
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