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MAX536ACPEMAXIMN/a100avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536ACWEMAXIMN/a5avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536AEWEMAXIMN/a100avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536BCPEMAXIMN/a9avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536BCWEMAXIMN/a2500avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536BEPEMAXIMN/a3avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX536BEWEMAXIMN/a702avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX537ACWEMAXIMN/a295avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX537AEWEMAXIMN/a36avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX537BCPEMAXIMN/a40avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX537BCPEMAXN/a13avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
MAX537BEWEMAXIMN/a2avaiCalibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface


MAX536BCWE ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceMAX536/MAX53719-0230; Rev 2a; 1/97Calibrated, Quad, 12-BitVoltage-Output DACs with Serial Interface ..
MAX536BCWE+ ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceFeatures♦ Four 12-Bit DACs with Output BuffersThe MAX536/MAX537 combine four 12-bit, voltage-output ..
MAX536BCWE+T ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceMAX536/MAX53719-0230; Rev 3; 3/11Calibrated, Quad, 12-BitVoltage-Output DACs with Serial Interface_ ..
MAX536BEPE ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceMAX536/MAX53719-0230; Rev 2a; 1/97Calibrated, Quad, 12-BitVoltage-Output DACs with Serial Interface ..
MAX536BEPE+ ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceFeatures♦ Four 12-Bit DACs with Output BuffersThe MAX536/MAX537 combine four 12-bit, voltage-output ..
MAX536BEWE ,Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial InterfaceGeneral Description ________
MAX9853ETM+ ,Stereo Audio CODECs with Microphone, DirectDrive Headphones, Speaker Amplifiers, or Line Outputs
MAX985ESA ,Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators
MAX985ESA ,Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators
MAX985ESA+ ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsFeaturesThe MAX985/MAX986/MAX989/MAX990/MAX993/ 11µA Quiescent Supply CurrentMAX994 single/dual/qu ..
MAX985ESA+ ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsMAX985/MAX986/MAX989/MAX990/MAX993/MAX99419-1229; Rev 3; 9/02Micropower, Low-Voltage, UCSP/SC70,Rai ..
MAX985EUK+T ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsGeneral Description ________


MAX536ACPE-MAX536ACWE-MAX536AEWE-MAX536BCPE-MAX536BCWE-MAX536BEPE-MAX536BEWE-MAX537ACWE-MAX537AEWE-MAX537BCPE-MAX537BEWE
Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface
_______________General Description
The MAX536/MAX537 combine four 12-bit, voltage-output
digital-to-analog converters (DACs) and four precision
output amplifiers in a space-saving 16-pin package.
Offset, gain, and linearity are factory calibrated to provide
the MAX536’s ±1LSB total unadjusted error. The MAX537
operates with ±5V supplies, while the MAX536 uses -5V
and +12V to +15V supplies.
Each DAC has a double-buffered input, organized as
an input register followed by a DAC register. A 16-bit
serial word is used to load data into each input/DAC
register. The serial interface is compatible with either
SPI/QSPI™ or Microwire™, and allows the input and
DAC registers to be updated independently or simulta-
neously with a single software command. The DAC reg-
isters can be simultaneously updated with a hardware
LDACpin. All logic inputs are TTL/CMOS compatible.
________________________Applications

Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control Devices
Remote Industrial Controls
Microprocessor-Controlled Systems
____________________________Features
Four 12-Bit DACs with Output BuffersSimultaneous or Independent Control of Four
DACs via a 3-Wire Serial Interface
Power-On Reset SPI/QSPI and Microwire Compatible±1LSB Total Unadjusted Error (MAX536)Full 12-Bit Performance without Adjustments±5V Supply Operation (MAX537)Double-Buffered Digital InputsBuffered Voltage Output16-Pin DIP/SO Packages
______________Ordering Information
Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.
** Contact factory for availability and processing to MIL-STD-883.
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
__________________Pin Configuration
________________Functional Diagram

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.
19-0230; Rev 2a; 1/97
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface

VDDto AGND or DGND
MAX536..................................................................-0.3V, +17V
MAX537....................................................................-0.3V, +7V
VSSto AGND or DGND...............................................-7V, +0.3V
SDI, SCK, CS, LDAC, TP, SDO
to AGND or DGND.....................................-0.3V, (VDD+ 0.3V)
REFAB, REFCD to AGND or DGND.............-0.3V, (VDD+ 0.3V)
OUT_ to AGND or DGND.............................................VDD, VSS
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) .................842mW
Wide SO (derate 9.52mW/°C above +70°C).................762mW
Ceramic SB (derate 10.53mW/°C above +70°C)..................842mW
Operating Temperature Ranges
MAX53_AC_E/BC_E.............................................0°C to +70°C
MAX53_AE_E/BE_E..........................................-40°C to +85°C
MAX53_AMDE/BMDE.....................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
ELECTRICAL CHARACTERISTICS—MAX536

(VDD= +15V, VSS= -5V, REFAB/REFCD = 10V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
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
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX536 (continued)

(VDD= +15V, VSS= -5V, REFAB/REFCD = 10V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX536 (continued)

(VDD= +15V, VSS= -5V, REFAB/REFCD = 10V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
Note 1:
TUE is specified with no resistive load.
Note 2:
Guaranteed by design.
Note 3:
Crosstalk is defined as the glitch energy at any DAC output in response to a full-scale step change on any other DAC.
Note 4:
Digital inputs at 2.4V; with digital inputs at CMOS levels, IDDdecreases slightly.
Note 5:
All input signals are specified with tR= tF≤5ns. Logic input swing is 0V to 5V.
Note 6:
Serial data clocked out of SDO on SCK’s falling edge. (SDO is an open-drain output for the MAX536. The MAX537’s SDO
pin has an internal active pull-up.)
Note 7:
Serial data clocked out of SDO on SCK’s rising edge.
Note 8:
SDO changes from High-Z state to 90% of final value.
Note 9:
SDO rises 10% toward High-Z state.
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX537

(VDD= +5V, VSS= -5V, REFAB/REFCD = 2.5V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX537 (continued)

(VDD= +5V, VSS= -5V, REFAB/REFCD = 2.5V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
Note 2:Guaranteed by design.
Note 3:
Crosstalk is defined as the glitch energy at any DAC output in response to a full-scale step change on any other DAC.
Note 4:
Digital inputs at 2.4V; with digital inputs at CMOS levels, IDDdecreases slightly.
Note 5:
All input signals are specified with tR= tF≤5ns. Logic input swing is 0V to 5V.
Note 6:
Serial data clocked out of SDO on SCK’s falling edge. (SDO is an open-drain output for the MAX536. The MAX537’s SDO
pin has an internal active pull-up.)
Note 7:
Serial data clocked out of SDO on SCK’s rising edge.
Note 10:
When disabled, SDO is internally pulled high.
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX537 (continued)

(VDD= +5V, VSS= -5V, REFAB/REFCD = 2.5V, AGND = DGND = 0V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless
otherwise noted. Typical values are at TA= +25°C.)
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)
MAX536
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
____________________________Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)
MAX536
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
____________________________Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)
MAX537
MAX536/MAX537
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
____________________________Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)
MAX537
MAX536/MAX537
_______________Detailed Description

The MAX536/MAX537 contain four 12-bit voltage-output
DACs that are easily addressed using a simple 3-wire
serial interface. They include a 16-bit data-in/data-out
shift register, and each DAC has a double-buffered
input composed of an input register and a DAC register
(see the Functional Diagramon the front page).
The DACs are “inverted” R-2R ladder networks that
convert 12-bit digital inputs into equivalent analog out-
put voltages in proportion to the applied reference-volt-
age inputs. DAC A and DAC B share the REFAB refer-
ence input, while DAC C and DAC D share the REFCD
reference input. The two reference inputs allow different
full-scale output voltage ranges for each pair of DACs.
Figure 1 shows a simplified circuit diagram of one of
the four DACs.
Reference Inputs

The two reference inputs accept positive DC and AC
signals. The voltage at each reference input sets
the full-scale output voltage for its two correspond-
ing DACs. The REFAB/REFCD voltage range is 0V to
(VDD- 4V) for the MAX536 and 0V to (VDD- 2.2V) for the
MAX537. The output voltages VOUT_ are represented by
a digitally programmable voltage source as:
VOUT_= NB(VREF)/ 4096
where NBis the numeric value of the DAC’s binary input
code (0 to 4095) and VREFis the reference voltage.
Calibrated, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
______________________________________________________________Pin Description
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