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MAX532ACWE+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
_______________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
____________________________Features
♦ Two 12-Bit MDACs with Output Amplifiers
♦ Fast, 6MHz 3-Wire Interface
♦ SPI, QSPI, and Microwire Compatible
♦ ±12V Output Swing
♦ ±10mA Output Current
♦ 2.5µs Settling Time to ±1/2LSB
♦ Guaranteed Monotonic Over Temperature
♦ Low Integral Nonlinearity: ±1/2LSB Max
♦ Low Gain Tempco: 2ppm/°C
♦ Operates from ±12V to ±15V Supplies
♦ Power-On Reset
♦ Available in 16-Pin DIP and Wide SO Packages
______________Ordering Information
MAX532
Dual, Serial-Input,
Voltage-Output, 12-Bit MDAC
________________________________________________________________
Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
V
DD
LDAC
CS
DIN
AGNDA
VOUTA
VREFA
RFBA
TOP VIEW
DOUT
SCLK
DGND
V
SS
RFBB
VREFB
VOUTB
AGNDB
DIP/Wide SO
MAX532
__________________Pin Configuration
DACA
LATCH
24-BIT SHIFT
REGISTER
DACB
LATCH
DACA
RFBA
VOUTA
DOUT
RFBB
VOUTB
AGNDB
AGNDA
VREFA
DIN
SCLK
CS
LDAC
VREFB
DACB
V
DD
V
SS
DGND
MAX532
________________Functional Diagram
Call toll free 1-800-998-8800 for free samples or literature.
19-0046; Rev. 1; 3/94
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*
™Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola, Inc.
±1/2
±1
±1/2
±1
±1
ERROR
(LSBs)
Ordering Information continued on last page.
* Contact factory for dice specifications.
MAX532
Dual, Serial-Input,
Voltage-Output, 12-Bit MDAC
2 _______________________________________________________________________________________
Pin Voltages
V
DD
to DGND, AGNDA, AGNDB........................-0.3V to +17V
V
SS
to DGND, AGNDA, AGNDB (Note 1) ..........+0.3V to -17V
VREFA, VREFB.............................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
AGNDA, AGNDB.....................(DGND - 0.3V) to (V
DD
+ 0.3V)
VOUTA, VOUTB ...........................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
RFBA, RFBB.................................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
SCLK, DIN, DOUT, LDAC, CS ..(DGND - 0.3V) to (V
DD
+ 0.3V)
DOUT Sink Current .............................................................20mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Wide SO (derate 9.52mW/°C above +70°C)................762mW
CERDIP (derate 10.00mW/°C above +70°C)...............800mW
Operating Temperature Ranges:
MAX532_C__ ......................................................0°C to +70°C
MAX532_E__....................................................-40°C to +85°C
MAX532_MJE ................................................-55°C to +125°C
Junction Temperatures:
MAX532_C__, E__........................................................+150°C
MAX532_MJE...............................................................+175°C
Storage Temperature Range........................... -65°C to +160°C
Lead Temperature (soldering, 10sec)........................... +300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= 11.4V to 16.5V, V
SS
= -11.4V to -16.5V, AGNDA = AGNDB = DGND = 0V, VREFA and VREFB = +10V, R
L
= 2kΩ,
C
L
= 100pF, VOUT_ connected to RFB_, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS
PARAMETER CONDITIONS MIN TYP MAX UNITSSYMBOL
Resolution
INL
12 Bits
Relative Accuracy
±1
LSB
Differential Nonlinearity Guaranteed monotonic ±1 LSB
±1/2MAX532A
MAX532B
±2
T
A
= +25°C, MAX532_
±3Zero-Code Offset Error
DAC latch loaded
with all 0s
±4
mV
T
A
= T
MIN
to T
MAX
, MAX532B
±5 µV/°CDAC latch loaded with all 0s
±2MAX532A
T
A
= +25°C, DAC latch
loaded with all 1s
±5MAX532B
±0.5 ±3.0 %
81013kΩ
±2
ppm/°C
of FSR
Gain Error
T
A
= T
MIN
to T
MAX
, DAC
latch loaded with all 1s
±7
LSB
MAX532B
±4MAX532A
T
A
= T
MIN
to T
MAX
, MAX532A
Zero-Code Offset
Temperature Coefficient
Gain-Error Temperature
Coefficient
VREFA, VREFB Input
Resistance
VREFA, VREFB Input
Resistance Matching
STATIC PERFORMANCE (Note 1)
REFERENCE INPUTS (VREFA, VREFB)
Note 1: If V
SS
is open-circuited with V
DD
and either AGND applied, the V
SS
pin will float positive, exceeding the Absolute Maximum Ratings.
A Schottky diode connected between V
SS
and GND ensures the maximum ratings will not be exceeded.
MAX532
Dual, Serial-Input,
Voltage-Output, 12-Bit MDAC
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 11.4V to 16.5V, V
SS
= -11.4V to -16.5V, AGNDA = AGNDB = DGND = 0V, VREFA and VREFB = +10V, R
L
= 2kΩ, C
L
= 100pF,
VOUT_ connected to RFB_, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITSSYMBOL
V
INL
V
OL
Input Low Voltage 0.8 V
I
SINK
= 5mA
0.08 0.4
Output Voltage Low
I
SINK
= 16mA
0.2
V
V
INH
Input High Voltage 2.4 V
Input Current
Digital inputs at 0V or V
DD
±1 µA
8 pFInput Capacitance (Note 2)
I
LKG
Output High Leakage
V
DOUT
= 0V to V
DD
±10 µA
C
OUT
15 pF
DC Output Impedance 0.2 Ω
Short-Circuit Current VOUTA, VOUTB connected to AGNDA, AGNDB 20 mA
Output Voltage Swing V
V
DD
Positive Supply Voltage 11.4 16.5 V
V
SS
Negative Supply Voltage -11.4 -16.5 V
±0.035
PSRPower-Supply Rejection
±0.035
LSB/%
I
DD
Positive Supply Current Output unloaded 510mA
I
SS
Negative Supply Current Output unloaded 46mA
Settling time to within 1/2 LSB of final DAC value; DAC
latch alternately loaded with all 0s and all 1s
2.5 µs
Slew Rate 8 V/µs
DAC latch alternately loaded with 011...11 and 100...00 60 nV-s
Output High Capacitance
(Note 2)
∆Full scale/∆V
DD
, V
DD
= 11.4V to 16.5V, VREF = -8.9V,
DAC latches loaded with all 1s
∆Full scale/∆V
SS
, V
SS
= -11.4V to -16.5V, VREF = 8.9V,
DAC latches loaded with all 1s
VREFA to VOUTB -100
Channel-to-Channel
Isolation
VREFB to VOUTA -100
dB
Voltage-Output
Settling Time
Digital-to-Analog
Glitch Impulse
VREFA = 20V
p-p
10kHz
sine wave; DAC latches
loaded with all 0s
VREFB = 20V
p-p
10kHz
sine wave; DAC latches
loaded with all 0s
(V
DD
- 2.5)
to
(V
SS
+ 2.5)
DIGITAL INPUTS (SCLK, DIN, , )
DIGITAL OUTPUT (DOUT) (Note 3)
ANALOG OUTPUTS (VOUTA, VOUTB)
POWER REQUIREMENTS
AC CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MAX532ACWE+

Mfr. #:
Buy MAX532ACWE+
Manufacturer:
Maxim Integrated
Description:
Digital to Analog Converters - DAC 12-Bit 2Ch Precision DAC
Lifecycle:
New from this manufacturer.
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