19-1718; Rev 3; 1/09
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
General Description
The MAX5383/MAX5384/MAX5385 low-cost, 8-bit digital-
to-analog converters (DACs) in miniature 6-pin SOT23
packages have a simple 3-wire, SPI™/QSPI™/
MICROWIRE™-compatible serial interface that operates
up to 10MHz. The MAX5383 has an internal +2V refer-
ence and operates from a +2.7V to +3.6V supply. The
MAX5384 has an internal +4V reference and operates
from a +4.5V to +5.5V supply. The MAX5385 operates
over the full +2.7V to +5.5V supply range and has an
internal reference equal to 0.9
✕
V
DD
.
The MAX5383/MAX5384/MAX5385 require an extremely
low supply current of only 150µA (typ) and provide a
buffered voltage output. These devices power up at zero
code and remain there until a new code is written to the
DAC registers. This provides additional safety for appli-
cations that drive valves or other transducers that need
to be off on power-up. The MAX5383/MAX5384/
MAX5385 include a 1µA, low-power shutdown mode that
features software-selectable output loads of 1kΩ, 100kΩ,
or 1MΩ to ground.
Features
♦
8-Bit Resolution in a Miniature 6-Pin SOT23
Package
♦
Wide +2.7V to +5.5V Supply Range (MAX5385)
♦
<1µA Shutdown Mode
♦
Software-Selectable Output Resistance During
Shutdown
♦
Buffered Output Drives Resistive Loads
♦
Low-Glitch Power-On Reset to Zero DAC Output
♦
3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
♦
< ±5% Full-Scale Error (MAX5385)
♦
< ±1LSB max INL/DNL
♦
Low 230µA (max) Supply Current
MAX5383/MAX5384/MAX5385
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
SOT
TOP MARK
AADF
AAAH
AADH
AAAI
AADJ
AAAJ
Applications
Automatic Tuning (VCO)
Power Amplifier Bias Control
Programmable Threshold Levels
Automatic Gain Control
Automatic Offset Adjustment
MAX5383EUT+T
-40°C to +85°C 6 SOT23
MAX5383EZT+T -40°C to +85°C 6 SOT23-Thin
MAX5384EUT+T
-40°C to +85°C 6 SOT23
MAX5384EZT+T -40°C to +85°C 6 SOT23-Thin
MAX5385EUT+T
-40°C to +85°C 6 SOT23
MAX5385EZT+T -40°C to +85°C 6 SOT23-Thin
+Denotes
lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Selector Guide
PART
INTERNAL REFERENCE
2V
4V
0.9
✕
V
DD
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX5383
MAX5384
MAX5385
Typical Operating Circuit
+2.7V TO +5.5V
Pin Configuration
TOP VIEW
+
OUT
1
6
CS
MC68XXXX
PCS0
MOSI
SCK
GND
CS
DIN
SCLK
V
DD
OUT
GND
2
MAX5385
MAX5383
MAX5384
MAX5385
5
SCLK
V
DD
3
4
DIN
SOT23
________________________________________________________________
Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
MAX5383/MAX5384/MAX5385
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ..............................................................-0.3V to +6V
OUT ............................................................-0.3V to (V
DD
+ 0.3V)
CS,
SCLK, DIN to GND ............................................-0.3V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)..........696mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+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
(V
DD
= +2.7V to +3.6V (MAX5383), V
DD
= +4.5V to +5.5V (MAX5384), V
DD
= +2.7V to +5.5V (MAX5385), R
L
= 10kΩ, C
L
= 50pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
Resolution
Integral Linearity Error
Differential Linearity Error
Offset Error
Offset Error Supply Rejection
Offset Error Temperature
Coefficient
Full-Scale Error
Full-Scale Error Supply
Rejection
Full-Scale Error Temperature
Coefficient
DAC OUTPUT
MAX5383
Internal Reference Voltage
(Note 5)
REF
MAX5384
MAX5385
Output Load Regulation
Shutdown Output Resistance
to GND
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
Output Settling Time
Digital Feedthrough
Positive and negative
To 1/2 LSB, 50kΩ and 50pF load (Note 6)
Code = 0, all digital inputs from 0 to V
DD
0.4
20
2
V/µs
µs
nVs
Code = 255, 0µA to 100µA
Code = 0, 0µA to 100µA
[D13, D12] = 0, 1
V
OUT
= 0 to V
DD
[D13, D12] = 1, 0
[D13, D12] = 1, 1
1.8
3.6
0.85
×
V
DD
2
4
0.9
×
V
DD
0.5
0.5
1k
100k
1M
Ω
2.2
4.4
0.95
×
V
DD
V
INL
DNL
V
OS
(Note 1)
Guaranteed monotonic
(Note 2)
MAX5385 (Notes 2, 3)
MAX5383/MAX5384
MAX5385
Code = 255, no load
Code = 255 (Note 4)
Code = 255
MAX5383/MAX5384
MAX5385
MAX5383/MAX5384
MAX5383/MAX5384
MAX5385
±40
±10
3
1
10
5
50
±1
8
±1
±1
±25
60
Bits
LSB
LSB
mV
dB
ppm/
°C
% of
ideal FS
dB
ppm/
°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LSB
2
_______________________________________________________________________________________
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +3.6V (MAX5383), V
DD
= +4.5V to +5.5V (MAX5384), V
DD
= +2.7V to +5.5V (MAX5385), R
L
= 10kΩ, C
L
= 50pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are T
A
= +25°C.)
PARAMETER
Digital-Analog Glitch Impulse
Wake-Up Time
POWER REQUIREMENTS
MAX5383
Supply Voltage
V
DD
MAX5384
MAX5385
Supply Current
DIGITAL INPUTS
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Capacitance
Input Leakage Current
V
IL
V
IH
V
H
C
IN
I
IN
(Note 7)
0.7
×
V
DD
0.05
×
V
DD
10
±1
0.3
×
V
DD
V
V
V
pF
µA
I
DD
No load, all digital inputs at 0 or V
DD
,
code = 255
Shutdown mode
2.7
4.5
2.7
150
3.6
5.5
5.5
230
1
µA
V
SYMBOL
CONDITIONS
Code 127 to 128
From software shutdown
MIN
TYP
40
50
MAX
UNITS
nVs
µs
MAX5383/MAX5384/MAX5385
TIMING CHARACTERISTICS
(Figures 3 and 4, V
DD
= +2.7V to +3.6V (MAX5383), V
DD
= +4.5V to +5.5V (MAX5384), V
DD
= +2.7V to +5.5V (MAX5385),
R
L
= 10kΩ, C
L
= 50pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are T
A
= +25°C.) (Note 7)
PARAMETER
SCLK Period
SCLK Pulse Width High
SCLK Pulse Width Low
CS
Fall to SCLK Rise Setup
Time
SCLK Rise to
CS
Rise Hold
Time
DIN Setup Time
DIN Hold Time
SCLK Rise to
CS
Fall Delay
SYMBOL
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
CS0
CONDITIONS
MIN
100
40
40
40
0
40
0
10
TYP
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
_______________________________________________________________________________________
3
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
MAX5383/MAX5384/MAX5385
TIMING CHARACTERISTICS (continued)
(Figures 3 and 4, V
DD
= +2.7V to +3.6V (MAX5383), V
DD
= +4.5V to +5.5V (MAX5384), V
DD
= +2.7V to +5.5V (MAX5385),
R
L
= 10kΩ, C
L
= 50pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are T
A
= +25°C.) (Note 7)
PARAMETER
CS
Rise to SCLK Rise Hold
CS
Pulse Width High
SYMBOL
t
CS1
t
CSW
CONDITIONS
MIN
40
100
TYP
MAX
UNITS
ns
ns
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Guaranteed from code 5 to code 255.
The offset value extrapolated from the range over which the INL is guaranteed.
MAX5385 tested at 5V ±10%.
MAX5383 tested at 3V ±10%; MAX5384 tested at 5V ±10%.
Actual output voltages at full-scale are 255/256
✕
V
REF
.
Output settling time is measured by stepping from code 5 to code 255, and from code 255 to code 5.
Guaranteed by design.
Typical Operating Characteristics
(V
DD
= +3.0V (MAX5383), V
DD
= +5.0V (MAX5384/MAX5385), T
A
= +25°C, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX5383/4/5-01
MAX5383/4/5-02
INTEGRAL NONLINEARITY vs. CODE
0.075
0.050
0.025
INL (LSB)
INL (LSB)
0
-0.025
-0.050
-0.15
-0.075
-0.100
-0.20
0
50
100
150
CODE
200
250
300
2.5
0
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX5383/4/5-03
0
-0.05
INL (LSB)
-0.10
-0.025
-0.050
3.0
3.5
4.0
4.5
5.0
5.5
-40
-20
0
20
40
60
80
100
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
DIFFERENTIAL NONLINEARITY vs. CODE
MAX5383/4/5-04
DIFFERENTIAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX5383/4/5-05
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
MAX5383/4/5-06
0
-0.005
0
-0.005
0.010
0.005
DNL (LSB)
0
-0.005
-0.010
-0.015
-0.020
0
100
CODE
200
DNL (LSB)
-0.015
DNL (LSB)
-0.010
-0.010
-0.015
-0.020
-0.020
-0.025
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
-0.025
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
Typical Operating Characteristics (continued)
(V
DD
= +3.0V (MAX5383), V
DD
= +5.0V (MAX5384/MAX5385), T
A
= +25°C, unless otherwise noted.)
TOTAL UNADJUSTED ERROR vs. CODE
MAX5383/4/5-07
MAX5383/MAX5384/MAX5385
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX5383/4/5-08
OFFSET ERROR vs. TEMPERATURE
MAX5383/4/5-09
0.15
0.10
0.05
TUE (LSB)
0
-0.05
-0.10
-0.15
-0.20
0
100
CODE
200
0
0
V
OS
(mV)
V
OS
(mV)
-0.25
-0.25
-0.50
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
-0.50
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
FULL-SCALE ERROR vs. SUPPLY VOLTAGE
0.75
0.50
FULL-SCALE ERROR (LSB)
0.25
0
-0.25
-0.50
-0.75
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
MAX5383/4/5-10
FULL-SCALE ERROR vs. TEMPERATURE
1.2
0.8
FULL-SCALE ERROR (LSB)
FULL-SCALE ERROR (%)
0.4
0
0.75
0.50
0.25
0
MAX5385
-0.25
-0.50
-0.75
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
-0.4
-0.8
-1.2
100
MAX5383
MAX5384
MAX5383/4/5-11
MAX5384
MAX5383
MAX5385
1.2
0.8
0.4
0
FULL-SCALE ERROR (%)
-0.4
-0.8
-1.2
5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5383/4/5-12
SUPPLY CURRENT vs. TEMPERATURE
NO LOAD
MAX5383/4/5-13
200
180
160
SUPPLY CURRENT (µA)
140
120
100
80
60
40
20
0
2.5
3.0
3.5
4.0
4.5
5.0
MAX5385
MAX5384
MAX5383
160
155
SUPPLY CURRENT (µA)
150
145
140
135
130
MAX5384
MAX5385
MAX5383
5.5
-40
-20
0
20
40
60
80
100
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
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