19-0046; Rev. 1; 3/94
Dual, Serial-Input,
Voltage-Output, 12-Bit MDAC
________________________Applications
Automatic Test Equipment
Arbitrary Waveform Generators
____________________________Features
o Two 12-Bit MDACs with Output Amplifiers
o Fast, 6MHz 3-Wire Interface
o SPI, QSPI, and Microwire Compatible
o ±12V Output Swing
o ±10mA Output Current
o 2.5µs Settling Time to ±1/2LSB
o Guaranteed Monotonic Over Temperature
o Low Integral Nonlinearity: ±1/2LSB Max
o Low Gain Tempco: 2ppm/°C
o Operates from ±12V to ±15V Supplies
o Power-On Reset
o Available in 16-Pin DIP and Wide SO Packages
______________Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
Programmable-Gain Amplifiers
ERROR
(LSBs)
MAX532ACPE
Motion Control Systems
Servo Controls
________________Functional Diagram
0°C to +70°C
16 Plastic DIP
±1/2
MAX532BCPE
MAX532ACWE
MAX532BCWE
MAX532BC/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
16 Plastic DIP
16 Wide SO
16 Wide SO
Dice*
±1
±1/2
±1
±1
Ordering Information continued on last page.
* Contact factory for dice specifications.
VDD
__________________Pin Configuration
MAX532
DACA
LATCH
RFBA
VREFA
DACA
TOP VIEW
VOUTA
RFBA
16 V DD
2
15 LDAC
DOUT
VOUTA
3
RFBB
SCLK
1
VREFA
DIN
AGNDA
4
AGNDB
5
12 DOUT
VOUTB
6
11 SCLK
VREFB 7
10 DGND
AGNDA
24-BIT SHIFT
REGISTER
CS
DACB
LDAC
DACB
LATCH
VREFB
VOUTB
AGNDB
14 CS
MAX532
RFBB 8
VSS
DGND
13 DIN
9
V SS
DIP/Wide SO
™Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola, Inc.
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX532
_______________General Description
The MAX532 is a complete, dual, serial-input, 12-bit
multiplying digital-to-analog converter (MDAC) with output amplifiers. No external user trims are required to
achieve full specified performance. The MAX532’s 3wire serial interface minimizes the number of package
pins, so it uses less board space than parallel-interface
parts. The interface is SPI™, QSPI™ and Microwire™
compatible. A serial output, DOUT, allows cascading
of two or more MAX532s and read-back of the data
written to the device.
The device’s serial interface minimizes digital-noise
feedthrough from its logic pins to its analog outputs.
Serial interfacing also simplifies opto-coupler-isolated
or transformer-isolated applications.
The MAX532 is specified with ±12V to ±15V power supplies. All logic inputs are TTL and CMOS compatible. It
comes in space-saving 16-pin DIP and wide SO packages.
