19-3148; Rev 7; 11/05
KIT
ATION
EVALU
BLE
AVAILA
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
General Description
Features
♦
Guaranteed Monotonic to 16 Bits
♦
32 Individual DACs in an 8mm x 8mm, 56-Pin,
Thin QFN Package or 64-Pin TQFP Package
♦
Four Output Voltage Ranges
0 to +5V (MAX5732)
0 to +10V (MAX5733)
-2.5V to +7.5V (MAX5734)
-5V to +5V (MAX5735)
♦
Buffered Voltage Outputs Capable of Driving
10kΩ || 100pF
♦
Glitch-Free Power-Up
♦
SPI-/QSPI-/MICROWIRE-/DSP-Compatible 33MHz
Serial Interface
MAX5732–MAX5735
The MAX5732–MAX5735 are 32-channel, 16-bit, voltage-
output, digital-to-analog converters (DACs). All devices
accept a 3V external reference input. The devices
include an internal offset DAC that allows all the outputs
to be offset and a ground-sensing function, allowing out-
put voltages to be referenced to a remote ground.
A 33MHz SPI™-/QSPI™-/MICROWIRE™- and digital
signal processor (DSP)-compatible serial interface con-
trols the MAX5732–MAX5735. Each DAC has a double-
buffered input structure that helps minimize the digital
noise feedthrough from the digital inputs to the outputs,
and allows for synchronous or asynchronous updating
of the outputs. The MAX5732–MAX5735 also provide a
DOUT that allows for read-back or daisy chaining multi-
ple devices. The devices provide separate power
inputs for the analog and digital sections and provide
separate power inputs for the output buffer amplifiers.
The MAX5732–MAX5735 include proprietary deglitch
circuits to prevent output glitches at power-up and
eliminate the need for power sequencing. The devices
provide a software-shutdown mode to allow efficient
power management. The MAX5732–MAX5735 con-
sume 50µA of supply current in shutdown.
The MAX5732–MAX5735 provide buffered outputs that
can drive 10kΩ in parallel with 100pF. The MAX5732 has
a 0 to +5V output range; the MAX5733 has a 0 to +10V
range; the MAX5734 has a -2.5V to +7.5V range; the
MAX5735 has a -5V to +5V range. The MAX5732–
MAX5735 are available in a 56-pin, 8mm x 8mm, thin
QFN package and 64-pin TQFP package and operate
over the 0°C to +85°C temperature range.
Ordering Information
PART
OUTPUT
VOLTAGE
(V)
0 to +5
0 to +5
MAX
PIN-
PKG
INL
PACKAGE CODE
(LSB)
±8
±16
56 Thin
QFN-EP*
56 Thin
QFN-EP*
T5688-3
T5688-3
MAX5732AUTN
MAX5732BUTN
Note:
All devices operate over the 0°C to +85°C temperature
range.
*EP
= Exposed pad (internally connected to V
SS
).
Ordering Information continued at end of data sheet.
Applications
OUT21
OUT22
Pin Configurations
TOP VIEW
OUT27
OUT28
OUT29
OUT23
OUT24
OUT25
OUT26
OUT30
AGND
AV
CC
V
SS
OUT31
Automatic Test Systems
Optical Router Controls
Industrial Process Controls
Arbitrary Function Generators
Avionics Equipment
Digital Offset/Gain Adjustment
42 41 40 39 38 37 36 35 34 33 32 31 30 29
OUT20
43
OUT19
44
OUT18
45
OUT17
46
OUT16
47
AV
CC
48
REFGND
49
AV
DD
50
OUT15
51
OUT14
52
OUT13
53
OUT12
54
OUT11
55
28
27
26
25
24
23
22
V
SS
AV
DD
REF
REFGND
GS
CLR
LDAC
DGND
DV
DD
DIN
SCLK
DOUT
CS
DSP
MAX5732–MAX5735
21
20
19
18
17
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configurations continued at end of data sheet.
EXPOSED PADDLE
16
15
OUT10
56
1
2
3
4
5
6
7
8
9
10 11 12 13 14
OUT9
OUT8
OUT7
N.C.
OUT6
OUT5
OUT4
AGND
OUT3
OUT2
OUT1
8mm x 8mm THIN QFN-EP
________________________________________________________________
Maxim Integrated Products
OUT0
AV
CC
V
SS
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
MAX5732–MAX5735
ABSOLUTE MAXIMUM RATINGS
AV
CC
to V
SS
, AGND, DGND, REFGND ..................-0.3V to +12V
V
SS
to AGND, DGND................................................-6V to +0.3V
AV
DD
, DV
DD
to AGND, DGND, REFGND.................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
REF to AGND, DGND,
REFGND...............-0.3V to the lower of (AV
DD
+ 0.3V) and +6V
REFGND to AGND.................................................-0.3V to +0.3V
Digital Inputs to AGND, DGND,
REFGND..............-0.3V to the lower of (DVDD + 0.3V) and +6V
DOUT to DGND.......-0.3V to the lower of (DV
DD
+ 0.3V) and +6V
OUT_ to V
SS
.........-0.3V to the lower of (AV
CC
+ 0.3V) and +12V
GS to AGND ................................................................-1V to +1V
Maximum Current into REF...............................................±10mA
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
Thin QFN (derate 31.3mW/°C above +70°C)...................2.5W
TQFP (derate 25mW/°C above +70°C) ............................2.0W
Operating Temperature Ranges
MAX573__UCB ...................................................0°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS—MAX5732 (0 to +5V Output Voltage Range)
(AV
CC
= +5.25V to +5.5V (Note 1), AV
DD
= +5V ±5%, DV
DD
= +2.7V to AV
DD
, V
SS
= AGND = DGND = REFGND = GS = 0, V
REF
=
+3.0V, R
L
=
∞,
C
L
= 50pF referenced to ground, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
Resolution
Integral Nonlinearity (Note 2)
Differential Nonlinearity
Zero-Scale Error
Full-Scale Error
Gain Error
Gain Temperature Coefficient
DC Crosstalk
DYNAMIC CHARACTERISTICS
Output-Voltage Settling Time
Voltage-Output Slew Rate
Digital Feedthrough
Digital Crosstalk
Digital-to-Analog Glitch Impulse
DAC-to-DAC Crosstalk
Output Noise Spectral Density at
1kHz
ANALOG OUTPUTS (OUT0 to OUT31)
Output Voltage Range
Resistive Load to Ground
V
SS
= -0.5V, AV
CC
= +5.25V (Note 1)
0
10
50
5
V
kΩ
(Note 6)
(Note 7)
Major carry transition
(Note 8)
Full-scale code
Full-scale change to ±0.5 LSB
20
1
5
5
120
15
250
µs
V/µs
nV-s
nV-s
nV-s
nV-s
nV/√Hz
V
SS
= -0.5V, AV
CC
= +5V (Note 5)
N
INL
DNL
V
OS
MAX5732A
MAX5732B
Guaranteed monotonic (Note 3)
V
SS
= -0.5V, AV
CC
= +5.25V (Note 4)
(Note 4)
±8
±8
±0.1
20
50
250
16
±4
±8
±8
±16
±1
±40
±50
±0.5
Bits
LSB
LSB
mV
mV
%FSR
ppm
FSR/°C
µV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX5732 (0 to +5V Output Voltage Range) (continued)
(AV
CC
= +5.25V to +5.5V (Note 1), AV
DD
= +5V ±5%, DV
DD
= +2.7V to AV
DD
, V
SS
= AGND = DGND = REFGND = GS = 0, V
REF
=
+3.0V, R
L
=
∞,
C
L
= 50pF referenced to ground, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Capacitive Load to Ground
DC Output Impedance
Sourcing, full-scale code, output connected
to AGND
Short-Circuit Current
Sinking, zero-scale code, output connected
to AV
CC
GROUND-SENSE ANALOG INPUT (GS)
Input Voltage Range
GS Gain
Input Resistance
REFERENCE INPUT (REF)
Input Resistance
Reference Input Voltage Range
1
V
REF
Referred to REFGND
2.900
0.7
×
DV
DD
2.4
0.8
10
Digital inputs = 0 or DV
DD
±1
V
pF
µA
3.000
3.100
MΩ
V
V
GS
A
GS
-0.5V
≤
V
GS
≤
+0.5V, V
SS
= -0.5V
Relative to AGND
-0.5
0.995
35
1.000
+0.5
1.005
V
V/V
kΩ
-5
SYMBOL
CONDITIONS
MIN
TYP
50
0.1
5
mA
MAX
100
UNITS
pF
Ω
MAX5732–MAX5735
DIGITAL INPUTS (CS, SCLK, DIN,
LDAC, CLR, DSP)
Input-Voltage High
Input-Voltage Low
Input Capacitance
Input Current
Output-Amplifier Positive Supply
Voltage
Output-Amplifier Negative Supply
Voltage
Output-Amplifier Supply Voltage
Difference
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Output-Amplifier Positive Supply
Current
Output-Amplifier Negative Supply
Current
Power-Supply Rejection Ratio
AV
DD
DV
DD
AI
DD
DI
DD
AI
CC
I
SS
PSRR
V
OUT0
through V
OUT31
= 0
Software shutdown
V
IH
= DV
DD
, V
IL
= 0, f
SCLK
= 20MHz
V
IH
= +2.4V, V
IL
= +0.8V, f
SCLK
= 20MHz
V
OUT0
through V
OUT31
= 0
Software shutdown
V
SS
= -0.5V
V
OUT0
through V
OUT31
= 0
Software shutdown
V
IH
V
IL
C
IN
I
IN
DV
DD
= +2.7V to +3.6V
DV
DD
= +4.75V to +5.25V
V
POWER REQUIREMENTS (AV
CC
, V
SS
, AGND, AV
DD
, DV
DD
, DGND)
AV
CC
V
SS
AV
CC
- V
SS
4.75
2.70
10
10
2.5
5
4
20
-4
-20
-95
-10
3.5
6.5
10
(Note 1)
4.75
-0.5
5.50
0
5.75
5.25
5.25
15
V
V
V
V
V
mA
µA
mA
mA
µA
mA
µA
dB
_______________________________________________________________________________________
3
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
MAX5732–MAX5735
ELECTRICAL CHARACTERISTICS—MAX5733 (0 to +10V Output Voltage Range)
(AV
CC
= +10.5V to +11V, AV
DD
= 5V ±5%, DV
DD
= +2.7V to AV
DD
, V
SS
= AGND = DGND = REFGND = GS = 0, V
REF
= +3.0V,
R
L
=
∞,
C
L
= 50pF referenced to ground, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
Resolution
Integral Nonlinearity (Note 2)
Differential Nonlinearity
Zero-Scale Error
Full-Scale Error
Gain Error
Gain Temperature Coefficient
DC Crosstalk
DYNAMIC CHARACTERISTICS
Output-Voltage Settling Time
Voltage-Output Slew Rate
Digital Feedthrough
Digital Crosstalk
Digital-to-Analog Glitch Impulse
DAC-to-DAC Crosstalk
Output Noise Spectral Density at
1kHz
ANALOG OUTPUTS (OUT0 to OUT31)
Output Voltage Range
Resistive Load to Ground
Capacitive Load to Ground
DC Output Impedance
Sourcing, full scale, output connected to
AGND
Short-Circuit Current
Sinking, zero scale, output connected to
AV
CC
GROUND-SENSE ANALOG INPUT (GS)
Input Voltage Range
GS Gain
Input Resistance
REFERENCE INPUT (REF)
Input Resistance
Reference Input Voltage Range
1
V
REF
Referred to REFGND
2.900
3.000
3.100
MΩ
V
V
GS
A
GS
-0.5V
≤
V
GS
≤
+0.5V, V
SS
= -0.5V
Relative to AGND
-0.5
0.995
70
1.000
+0.5
1.005
V
V/V
kΩ
-5
V
SS
= -0.5V, AV
CC
= +10.5V (Note 1)
0
10
50
50
0.1
5
mA
100
10
V
kΩ
pF
Ω
(Note 6)
(Note 7)
Major carry transition
(Note 8)
Full-scale code
Full-scale change to ±0.5 LSB
20
1
5
5
120
15
250
µs
V/µs
nV-s
nV-s
nV-s
nV-s
nV/√Hz
V
SS
= -0.5V, AV
CC
= +10V (Note 5)
N
INL
DNL
V
OS
MAX5733A
MAX5733B
Guaranteed monotonic (Note 3)
V
SS
= -0.5V, AV
CC
= +10V (Note 4)
(Note 4)
±8
±8
±0.1
20
50
250
16
±4
±8
±8
±16
±1
±40
±50
±0.5
Bits
LSB
LSB
mV
mV
% FSR
ppm
FSR/°C
µV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
4
_______________________________________________________________________________________
32-Channel, 16-Bit, Voltage-Output
DACs with Serial Interface
ELECTRICAL CHARACTERISTICS—MAX5733 (0 to +10V Output Voltage Range) (continued)
(AV
CC
= +10.5V to +11V, AV
DD
= 5V ±5%, DV
DD
= +2.7V to AV
DD
, V
SS
= AGND = DGND = REFGND = GS = 0, V
REF
= +3.0V,
R
L
=
∞,
C
L
= 50pF referenced to ground, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
0.7
×
DV
DD
2.4
0.8
10
Digital inputs = 0 or DV
DD
±1
V
pF
µA
TYP
MAX
UNITS
DIGITAL INPUTS (CS, SCLK, DIN,
LDAC, CLR, DSP)
Input-Voltage High
Input-Voltage Low
Input Capacitance
Input Current
V
IH
V
IL
C
IN
I
IN
DV
DD
= +2.7V to +3.6V
DV
DD
= +4.75V to +5.25V
V
MAX5732–MAX5735
POWER REQUIREMENTS (AV
CC
, V
SS
, AGND, AV
DD
, DV
DD
, DGND)
Output-Amplifier Positive Supply
Voltage
Output-Amplifier Negative Supply
Voltage
Output-Amplifier Supply Voltage
Difference
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Output-Amplifier Positive Supply
Current
Output-Amplifier Negative Supply
Current
Power-Supply Rejection Ratio
AV
DD
DV
DD
AI
DD
DI
DD
AI
CC
I
SS
PSRR
V
OUT0
through V
OUT31
= 0
Software shutdown
V
IH
= DV
DD
, V
IL
= 0, f
SCLK
= 20MHz
V
IH
= +2.4V, V
IL
= +0.8V, f
SCLK
= 20MHz
V
OUT0
through V
OUT31
= 0
Software shutdown
V
SS
= -0.5V
V
OUT0
through V
OUT31
= 0
Software shutdown
AV
CC
V
SS
AV
CC
- V
SS
4.75
2.70
10
10
2.5
5
4
20
-4
-20
-95
-10
3.5
6.5
10
(Note 1)
10
-0.5
11
0
11
5.25
5.25
15
V
V
V
V
V
mA
µA
mA
mA
µA
mA
µA
dB
_______________________________________________________________________________________
5
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