General Description
The MAX5441MAX5444 are serial-input, voltage-out-
put, 16-bit digital-to-analog converters (DACs) in tiny
MAX packages, 50% smaller than comparable DACs
in 8-pin SOs. They operate from low +3V (MAX5443/
MAX5444) or +5V (MAX5441/MAX5442) single sup-
plies. They provide 16-bit performance (2LSB INL and
1LSB DNL) over temperature without any adjustments.
Unbuffered DAC outputs result in a low supply current
of 120A and a low offset error of 2LSB.
The DAC output ranges from 0 to V
REF
. For bipolar
operation, matched scaling resistors are provided in
the MAX5442/MAX5444 for use with an external preci-
sion op amp (such as the MAX400), generating a
V
REF
output swing.
A 16-bit serial word is used to load data into the DAC
latch. The 25MHz, 3-wire serial interface is compatible
with SPITM/QSPITM/MICROWIRETM, and can interface
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to
code 0 (MAX5441/MAX5443) or code 32768 (MAX5442
/MAX5444) when power is initially applied.
A logic low on CLR asynchronously clears the DAC out-
put to code 0 (MAX5441/MAX5443) or code 32768
(MAX5442/MAX5444) independent of the serial interface.
The MAX5441/MAX5443 are available in 8-pin MAX
packages. The MAX5442/MAX5444 are available in 10-
pin MAX packages.
Applications
High-Resolution Offset and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
Features
o Ultra-Small 3mm x 5mm 8-Pin MAX Package
o Low 120A Supply Current
o Fast 1s Settling Time
o 25MHz SPI/QSPI/MICROWIRE-Compatible Serial
Interface
o V
REF
Range Extends to V
DD
o +5V (MAX5441/MAX5442) or +3V
(MAX5443/MAX5444) Single-Supply Operation
o Full 16-Bit Performance Without Adjustments
o Unbuffered Voltage Output Directly Drives
60k
Loads
o Power-On Reset Circuit Clears DAC Output to
Code 0 (MAX5441/MAX5443) or Code 32768
(MAX5442/MAX5444)
o Schmitt-Trigger Inputs for Direct Optocoupler
Interface
o Asynchronous CLR
MAX5441MAX5444
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
________________________________________________________________ Maxim Integrated Products
1
10
9
8
7
6
1
2
3
4
5
GND
V
DD
RFB
INV
DIN
SCLK
CS
REF
TOP VIEW
MAX5442
MAX5444
OUT
CLR
MAX-8
OUT
SCLK
CS
1
2
8
7 V
DD
DIN
REF
MAX5441
MAX5443
3
4
6
5
MAX-10
GND
CLR
Pin Configurations
19-1846; Rev 1; 6/01
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PART
TEMP RANGE
PIN-PACKAGE
INL (LSB)
SUPPLY (V)
MAX5441ACUA
0
C to +70C
8 MAX
2
5
MAX5441AEUA
-40
C to +85C
8 MAX
2
5
MAX5441BCUA
0
C to +70C
8 MAX
4
5
MAX5441BEUA
-40
C to +85C
8 MAX
4
5
MAX5442ACUB
0
C to +70C
10 MAX
2
5
MAX5442AEUB
-40
C to +85C
10 MAX
2
5
MAX5442BCUB
0
C to +70C
10 MAX
4
5
MAX5442BEUB
-40
C to +85C
10 MAX
4
5
Functional Diagrams appear at end of data sheet.
Ordering Information continued at end of data sheet.
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.
MAX5441MAX5444
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442), V
REF
= +2.5V, C
L
= 10pF, GND = 0, R
L
=
, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25C.)
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.
V
DD
to GND ..............................................................-0.3V to +6V
CS, SCLK, DIN, CLR to GND ...................................-0.3V to +6V
REF to GND ................................................-0.3V to (V
DD
+ 0.3V)
OUT, INV to GND .....................................................-0.3V to V
DD
RFB to INV ...................................................................-6V to +6V
RFB to GND.................................................................-6V to +6V
Maximum Current Into Any Pin ...........................................50mA
Continuous Power Dissipation (T
A
= +70C)
8-Pin MAX (derate 4.5mW/C above +70C)...............362mW
10-Pin MAX (derate 5.6mW/C above +70C) ..............444mW
Operating Temperature Ranges
MAX544 _ _CU_ ...................................................0C to +70C
MAX544 _ _EU_.................................................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Maximum Die Temperature..............................................+150C
Lead Temperature (soldering, 10s) .................................+300C
Bipolar mode
Unipolar mode
(Note 3)
(Note 2)
CONDITIONS
k
6
R
REF
Reference Input Resistance
(Note 4)
10
V
2.0
V
DD
V
REF
Reference Input Range
Power-Supply Rejection
ppm/C
0.5
BZS
TC
Bipolar Zero Tempco
LSB
0.015
Bipolar Resistor Matching
1
R
OUT
DAC Output Resistance
k
6.2
Bits
16
N
Resolution
ppm/C
0.1
Gain-Error Tempco
LSB
Gain Error (Note 1)
ppm/C
0.05
ZS
TC
Zero-Code Tempco
Integral Nonlinearity
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX544_A
LSB
Bipolar Zero Offset Error
(Note 5)
15
V/s
SR
Voltage-Output Slew Rate
DYNAMIC PERFORMANCE--ANALOG SECTION
To
1
/
2
LSB of FS
1
s
Output Settling Time
%
Guaranteed monotonic
LSB
0.5
1
DNL
Differential Nonlinearity
INL
R
FB
/R
INV
Ratio error
20
LSB
1
+2.7V
V
DD
+3.3V (MAX5443/MAX5444)
PSR
+4.5V
V
DD
+5.5V (MAX5441/MAX5442)
1
Major-carry transition
7
nV-s
DAC Glitch Impulse
Code = 0000 hex; CS = V
DD;
SCLK, DIN = 0 to V
DD
levels
0.2
nV-s
Digital Feedthrough
0.5
2
10
ZSE
LSB
2
Zero-Code Offset Error
0.5
4
MAX544_B
STATIC PERFORMANCE--ANALOG SECTION
REFERENCE INPUT
MAX5441MAX5444
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
_______________________________________________________________________________________
3
TIMING CHARACTERISTICS
(V
DD
= +2.7V to +3.3V (MA5443/MAX5444) , V
DD
= +4.5V to +5.5V (MAX5441/MAX5442), V
REF
= +2.5V, GND = 0, CMOS inputs,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.) (Figure 1)
Note 1: Gain error tested at V
REF
= +2.0V, +2.5V, and +3.0V (MAX5443/MAX5444) or V
REF
= +2.0V, +2.5V, +3.0V, and +5.5V
(MAX5441/ MAX5442).
Note 2: R
OUT
tolerance is typically 20%.
Note 3: Min/max range guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance.
Note 4: Reference input resistance is code-dependent, minimum at 8555hex in unipolar mode, 4555hex in bipolar mode.
Note 5: Slew-rate value is measured from 10% to 90%.
Note 6: Guaranteed by design. Not production tested.
Note 7: Guaranteed by power-supply rejection test and Timing Characteristics.
All digital inputs at
V
DD
or GND
All digital inputs at V
DD
or GND
MAX5443/MAX5444
Code = 0000 hex, V
REF
= 1V
P-P
at 100kHz
Code = 0000 hex
Code = FFFF hex
(Note 6)
CONDITIONS
mW
0.36
PD
Power Dissipation
mA
0.12
0.20
I
DD
Positive Supply Current
V
2.7
3.6
V
DD
Positive Supply Range (Note 7)
V
0.15
V
H
Hysteresis Voltage
pF
3
10
C
IN
Input Capacitance
mV
P-P
1
A
1
I
IN
Input Current
V
0.8
V
IL
Input Low Voltage
V
2.4
V
IH
Input High Voltage
Reference Feedthrough
dB
92
SNR
Signal-to-Noise Ratio
70
pF
170
C
INREF
Reference Input Capacitance
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
(Note 6)
CONDITIONS
s
20
V
DD
High to CS Low
(power-up delay)
ns
20
t
CL
SCLK Pulse Width Low
ns
20
t
CH
MHz
25
f
CLK
SCLK Frequency
SCLK Pulse Width High
ns
20
t
CLW
CLR Pulse Width Low
ns
0
t
DH
DIN to SCLK High Hold
ns
15
t
DS
DIN to SCLK High Setup
ns
15
t
CSS0
CS Low to SCLK High Setup
ns
15
t
CSS1
CS High to SCLK High Setup
ns
35
t
CSH0
SCLK High to CS Low Hold
ns
20
t
CSH1
SCLK High to CS High Hold
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Code = FFFF hex
MHz
1
BW
Reference -3dB Bandwidth
MAX5441/MAX5442
4.5
5.5
0.60
DYNAMIC PERFORMANCE--REFERENCE SECTION
STATIC PERFORMANCE--DIGITAL INPUTS
POWER SUPPLY
MAX5441/MAX5442
MAX5443/MAX5444
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442), V
REF
= +2.5V, C
L
= 10pF, GND = 0, R
L
=
, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25C.)
MAX5441MAX5444
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(V
DD
= +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442), V
REF
= +2.5V, GND = 0, R
L
=
, T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Typical values are at T
A
= +25C.)
0
0.050
0.025
0.100
0.075
0.125
0.150
-40
10
-15
35
60
85
SUPPLY CURRENT vs. TEMPERATURE
MAX5441/44 toc01
TEMPERATURE (
C)
SUUPLY CURRENT (mA)
V
DD
= +5V
V
DD
= +3V
0.05
0.09
0.08
0.06
0.10
0.11
0.12
0
2.0
1.5
0.5 1.0
2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
MAX5441/44 toc02
REFERENCE VOLTAGE (V)
SUPPLY CURRENT (mA) 0.07
V
DD
= +5V
0.05
0.07
0.06
0.09
0.08
0.11
0.10
0.12
0
1.0
1.5
0.5
2.0
2.5
3.0
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
MAX5441/44 toc03
REFERENCE VOLTAGE (V)
SUPPLY CURRENT (mA)
V
DD
= +3V
-0.2
0
-0.1
0.2
0.1
0.3
0.4
-40
10
-15
35
60
85
ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
MAX5441/44 toc04
TEMPERATURE (
C)
OFFSET ERROR (LSB)
-0.4
0
-0.2
0.4
0.2
0.6
0.8
-40
10
-15
35
60
85
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX5441/44 toc05
TEMPERATURE (
C)
INL (LSB)
+INL
-INL
-0.4
-0.2
-0.3
0
-0.1
0.1
0.2
-40
10
-15
35
60
85
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
MAX5441/44 toc06
TEMPERATURE (
C)
DNL (LSB)
+DNL
-DNL
-0.30
-0.20
-0.25
-0.10
-0.15
-0.05
0
-40
10
-15
35
60
85
GAIN ERROR
vs. TEMPERATURE
MAX5441/44 toc07
TEMPERATURE (
C)
GAIN ERROR (LSB)
0.25
0.20
0.15
0.10
0.05
-0.05
-0.10
-0.15
-0.20
-0.25
0
0
15k
5k
25k
35k
45k
55k
66k
INTEGRAL NONLINEARITY vs. CODE
MAX5441/44 toc08
CODE
INL (LSB)
0.125
0.100
0.075
0.050
0.025
-0.025
-0.050
-0.075
-0.100
-0.125
0
0
15k
5k
25k
35k
45k
55k
66k
DIFFERENTIAL NONLINEARITY
MAX5441/44 toc09
CODE
DNL (LSB)
MAX5441MAX5444
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
_______________________________________________________________________________________
5
0
40
20
80
60
120
100
140
0
20000 30000
10000
40000 50000 60000 70000
REFERENCE CURRENT
vs. DIGITAL INPUT CODE
MAX5441/44 toc10
CODE
REFERENCE CURRENT (
A)
FULL-SCALE STEP RESPONSE
(FALLING)
400ns/div
CS
2V/div
A
OUT
1V/div
C
L
= 20pF
MAX5441/44 toc11
FULL-SCALE STEP RESPONSE
(RISING)
MAX5441/44 toc12
400ns/div
CS
2V/div
A
OUT
1V/div
C
L
= 20pF
MAJOR-CARRY GLITCH
(RISING)
MAX5441/44 toc13
200ns/div
CS
1V/div
A
OUT
20mV/div
C
L
= 20pF
0.40
0.50
0.45
0.60
0.55
0.65
0.70
2.0
3.0
3.5
2.5
4.0
4.5
5.0
INTEGRAL NONLINEARITY
vs. REFERENCE VOLTAGE
MAX5441/44 toc16
REFERENCE VOLTAGE (V)
INL (LSB)
UNIPOLAR POWER-ON GLITCH
(REF = V
DD
)
MAX5441/44 toc17
50ms/div
V
DD
2V/div
V
OUT
10mV/div
MAJOR-CARRY GLITCH
(FALLING)
MAX5441/44 toc14
200ns/div
CS
1V/div
A
OUT
20mV/div
C
L
= 20pF
DIGITAL FEEDTHROUGH
MAX5441/44 toc15
50ns/div
D
IN
2V/div
A
OUT
10mV/div
C
L
= 112pF
Typical Operating Characteristics (continued)
(V
DD
= +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442), V
REF
= +2.5V, GND = 0, R
L
=
, T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Typical values are at T
A
= +25C.)
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