MAX532 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Dual, Serial-Input, Voltage-Output, 12-Bit MDAC

19-0046; Rev. 1; 3/94
Dual, Serial-Input,
Voltage-Output, 12-Bit MDAC
_______________General Description
The MAX532 is a complete, dual, serial-input, 12-bit
multiplying digital-to-analog converter (MDAC) with out-
put amplifiers. No external user trims are required to
achieve full specified performance. The MAX532’s 3-
wire 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 sup-
plies. All logic inputs are TTL and CMOS compatible. It
comes in space-saving 16-pin DIP and wide SO packages.
________________________Applications
Automatic Test Equipment
Arbitrary Waveform Generators
Programmable-Gain Amplifiers
Motion Control Systems
Servo Controls
________________Functional Diagram
V_DD
____________________________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
MAX532ACPE 0°C to +70°C 16 Plastic DIP
MAX532BCPE 0°C to +70°C 16 Plastic DIP
MAX532ACWE 0°C to +70°C 16 Wide SO
MAX532BCWE 0°C to +70°C 16 Wide SO
MAX532BC/D 0°C to +70°C Dice*
Ordering Information continued on last page.
* Contact factory for dice specifications.
ERROR
(LSBs)
±1/2
±1
±1/2
±1
±1
VREFA
DIN
SCLK
CS
LDAC
VREFB
MAX532
DACA
LATCH
DACA
24-BIT SHIFT
REGISTER
DACB
DACB
LATCH
RFBA
VOUTA
AGNDA
DOUT
RFBB
VOUTB
AGNDB
__________________Pin Configuration
TOP VIEW
RFBA ₁
VREFA 2
VOUTA ₃
AGNDA ₄
AGNDB 5
VOUTB 6
VREFB ₇
RFBB ₈
MAX532
16 ^VDD
15 LDAC
14 CS
13 DIN
12 DOUT
11 SCLK
10 DGND
9 VSS
V_SS DGND
DIP/Wide SO
™Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola, Inc.
________________________________________________________________ Maxim Integrated Products 1
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