Rainbow Electronics MAX510 - Manual

_______________General Description
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 TM and SPI/
QSPI TM . All digital inputs and outputs are TTL/CMOS
compatible. A buffered data output provides for read-
back or daisy-chaining of serial devices.
____________________________Features
♦ 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
______________Ordering Information
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.
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
________________________________________________________________ Maxim Integrated Products 1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
OUTC
OUTD
V DD
REFC REFB
V SS
OUTA
OUTB
TOP VIEW
MAX509
REFD
CS
N.C.
SCLK DGND
N.C.
AGND
REFA
DIN
CLR DOUT
LDAC
DIP/SO/SSOP
_________________Pin Configurations
MAX509
OUTA
DAC A
DAC B
DAC C
DAC D
REFA REFB
DAC
REG A
DECODE
CONTROL
INPUT
REG A
DAC
REG B
INPUT
REG B
DAC
REG C
INPUT
REG C
DAC
REG D
INPUT
REG D
12-BIT
SHIFT
REGISTER
SR
CONTROL
CS DIN SCLK REFC REFD
OUTB
OUTC
OUTD
DOUT LDAC
CLR
V DD
DGND V SS AGND
_______________Functional Diagrams
19-0155; Rev 2; 1/96
PART TEMP. RANGE PIN-PACKAGE
MAX509 ACPP 0°C to +70°C 20 Plastic DIP
MAX509BCPP 0°C to +70°C 20 Plastic DIP
MAX509ACWP 0°C to +70°C 20 Wide SO
±1
±1 1/2
±1
MAX509BCWP 20 Wide SO ±1 1/2
MAX509ACAP 0°C to +70°C 20 SSOP ±1
0°C to +70°C
MAX509BCAP 0°C to +70°C 20 SSOP ±1 1/2
MAX509BC/D 0°C to +70°C Dice* ±1 1/2
Pin Configurations continued at end of data sheet. Functional Diagrams continued at end of data sheet.
TUE
(LSB)
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