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MAX5384EUT+N/AN/a2500avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5383EZT+T |MAX5383EZTTMAXIM Pb-freeN/a2408avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5384EUTMAXIM ?N/a51avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5384EUT+TMAXIMN/a1100avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5385EUTMAXIMN/a1098avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5385EUT+TMAXN/a1906avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23
MAX5385EUT+T |MAX5385EUTTMAXIMN/a2018avaiLow-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23


MAX5384EUT+ ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23ELECTRICAL CHARACTERISTICS(V = +2.7V to +3.6V (MAX5383), V = +4.5V to +5.5V (MAX5384), V = +2.7V to ..
MAX5384EUT+T ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23ELECTRICAL CHARACTERISTICS(V = +2.7V to +3.6V (MAX5383), V = +4.5V to +5.5V (MAX5384), V = +2.7V to ..
MAX5385EUT ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23MAX5383/MAX5384/MAX538519-1718; Rev 3; 1/09Low-Cost, Low-Power, 8-Bit DACs with 3-WireSerial Interf ..
MAX5385EUT+T ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23features software-selectable output loads of 1kΩ, 100kΩ, PIN- SOTor 1MΩ to ground.PART TEMP RAN ..
MAX5385EUT+T ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23ApplicationsMAX5383EZT+T -40°C to +85°C 6 SOT23-Thin AAAHAutomatic Tuning (VCO)MAX5384EUT+T -40°C t ..
MAX5385EZT-T ,Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23ApplicationsMAX5383EUT-T -40°C to +85°C 6 SOT23 AADFAutomatic Tuning (VCO) MAX5383EZT-T -40°C to +8 ..
MAX988EUK+T ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsGeneral Description ________
MAX9890AEBL+ ,Audio Click-Pop Suppressor
MAX9890AEBL+T ,Audio Click-Pop Suppressor
MAX9890AEBL-T ,Audio Click-Pop Suppressor
MAX9890AETA+T ,Audio Click-Pop Suppressor
MAX9890BETA ,Audio Click-Pop Suppressor


MAX5383EZT+T-MAX5384EUT-MAX5384EUT+-MAX5384EUT+T-MAX5385EUT-MAX5385EUT+T
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 ✕VDD.
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 1MΩto ground.
Applications

Automatic Tuning (VCO)
Power Amplifier Bias Control
Programmable Threshold Levels
Automatic Gain Control
Automatic Offset Adjustment
Features
8-Bit Resolution in a Miniature 6-Pin SOT23
Package
Wide +2.7V to +5.5V Supply Range (MAX5385)<1µA Shutdown ModeSoftware-Selectable Output Resistance During
Shutdown
Buffered Output Drives Resistive LoadsLow-Glitch Power-On Reset to Zero DAC Output3-Wire SPI/QSPI/MICROWIRE-Compatible Interface< ±5% Full-Scale Error (MAX5385) < ±1LSB max INL/DNLLow 230µA (max) Supply Current
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23

GND
DINVDDSCLK
OUT
MAX5383
MAX5384
MAX5385
SOT23

TOP VIEW
Pin Configuration

GND
MC68XXXX
PCS0
VDD
OUT
SCK
MOSI
SCLK
DINMAX5385
+2.7V TO +5.5V
Typical Operating Circuit

19-1718; Rev 3; 1/09
Ordering Information

SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PARTTEMP RANGE PIN-
PACKAGE
SOT
TOP MARK
MAX5383EUT+T
-40°C to +85°C6 SOT23AADF
MAX5383EZT+T-40°C to +85°C6 SOT23-ThinAAAH
MAX5384EUT+T
-40°C to +85°C6 SOT23AADH
MAX5384EZT+T-40°C to +85°C6 SOT23-ThinAAAI
MAX5385EUT+T
-40°C to +85°C6 SOT23AADJ
MAX5385EZT+T-40°C to +85°C6 SOT23-ThinAAAJ
Selector Guide
PARTINTERNAL REFERENCE

MAX53832V
MAX53844V
MAX53850.9 ✕ VDD
+Denotes lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VDD= +2.7V to +3.6V (MAX5383), VDD= +4.5V to +5.5V (MAX5384), VDD= +2.7V to +5.5V (MAX5385), RL= 10kΩ, CL= 50pF,
TA = TMINto TMAX, unless otherwise noted. Typical values are 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.
VDDto GND..............................................................-0.3V to +6V
OUT............................................................-0.3V to (VDD+ 0.3V)
CS, SCLK, DIN to GND............................................-0.3V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA= +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
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
STATIC ACCURACY

Resolution8Bits
Integral Linearity ErrorINL(Note 1)±1LSB
Differential Linearity ErrorDNLGuaranteed monotonic±1LSB
Offset ErrorVOS(Note 2)±1±25mV
Offset Error Supply RejectionMAX5385 (Notes 2, 3)60dB
MAX5383/MAX53843Offset Error Temperature
CoefficientMAX53851ppm/°CAX 5383/M AX 538410Full-Scale ErrorC ode = 255, no l oadMAX53855
% ofd eal FS
Full-Scale Error Supply
RejectionC od e = 255 ( N ote 4) M AX 5383/M AX 538450dBAX 5383/M AX 5384±40Full-Scale Error Temperature
CoefficientCode = 255MAX5385±10ppm/°C
DAC OUTPUT

MAX53831.822.2
MAX53843.644.4Internal Reference Voltage
(Note 5)REF
MAX53850.85 ×
VDD
0.9 ×
VDD
0.95 ×
VDD
Code = 255, 0μA to 100μA0.5Output Load RegulationCode = 0, 0μA to 100μA0.5LSB
[D13, D12] = 0, 11k
[D13, D12] = 1, 0100kShutdown Output Resistance
to GNDVOUT = 0 to VDD
[D13, D12] = 1, 11M
DYNAMIC PERFORMANCE

Voltage Output Slew RatePositive and negative0.4V/μs
Output Settling TimeTo 1/2 LSB, 50kΩ and 50pF load (Note 6)20μs
Digital FeedthroughCode = 0, all digital inputs from 0 to VDD2nVs
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
ELECTRICAL CHARACTERISTICS (continued)

(VDD= +2.7V to +3.6V (MAX5383), VDD= +4.5V to +5.5V (MAX5384), VDD= +2.7V to +5.5V (MAX5385), RL= 10kΩ, CL= 50pF,
TA = TMINto TMAX, unless otherwise noted. Typical values are TA= +25°C.)
TIMING CHARACTERISTICS

(Figures 3 and 4, VDD= +2.7V to +3.6V (MAX5383), VDD= +4.5V to +5.5V (MAX5384), VDD= +2.7V to +5.5V (MAX5385),= 10kΩ, CL= 50pF, TA = TMINto TMAX, unless otherwise noted. Typical values are TA= +25°C.) (Note 7)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Digital-Analog Glitch ImpulseCode 127 to 12840nVs
Wake-Up TimeFrom software shutdown50μs
POWER REQUIREMENTS

MAX53832.73.6
MAX53844.55.5Supply VoltageVDD
MAX53852.75.5
No load, all digital inputs at 0 or VDD,
code = 255150230Supply CurrentIDD
Shutdown mode1
DIGITAL INPUTS

Input Low VoltageVIL0.3 ×
VDDV
Input High VoltageVIH0.7 ×
V DDV
Input HysteresisVH0.05 ×
VDDV
Input CapacitanceCIN(Note 7)10pF
Input Leakage CurrentIIN±1μA
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

SCLK PeriodtCP100ns
SCLK Pulse Width HightCH40ns
SCLK Pulse Width LowtCL40ns
CS Fall to SCLK Rise Setup
TimetCSS40ns
SCLK Rise to CS Rise Hold
TimetCSH0ns
DIN Setup TimetDS40ns
DIN Hold TimetDH0ns
SCLK Rise to CS Fall DelaytCS010ns
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23

INTEGRAL NONLINEARITY vs. CODE
MAX5383/4/5-01
CODE
INL (LSB)10015050200250300
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX5383/4/5-02
SUPPLY VOLTAGE (V)
INL (LSB)
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX5383/4/5-03
TEMPERATURE (°C)
INL (LSB)
DIFFERENTIAL NONLINEARITY vs. CODE
MAX5383/4/5-04
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX5383/4/5-05
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
MAX5383/4/5-06
DNL (LSB)
Typical Operating Characteristics

(VDD= +3.0V (MAX5383), VDD = +5.0V (MAX5384/MAX5385), TA= +25°C, unless otherwise noted.)
TIMING CHARACTERISTICS (continued)

(Figures 3 and 4, VDD= +2.7V to +3.6V (MAX5383), VDD= +4.5V to +5.5V (MAX5384), VDD= +2.7V to +5.5V (MAX5385),= 10kΩ, CL= 50pF, TA = TMINto TMAX, unless otherwise noted. Typical values are TA= +25°C.) (Note 7)
Note 1:
Guaranteed from code 5 to code 255.
Note 2:
The offset value extrapolated from the range over which the INL is guaranteed.
Note 3:
MAX5385 tested at 5V ±10%.
Note 4:
MAX5383 tested at 3V ±10%; MAX5384 tested at 5V ±10%.
Note 5:
Actual output voltages at full-scale are 255/256 ✕VREF.
Note 6:
Output settling time is measured by stepping from code 5 to code 255, and from code 255 to code 5.
Note 7:
Guaranteed by design.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

CS Rise to SCLK Rise HoldtCS140ns
CS Pulse Width HightCSW100ns
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23

TOTAL UNADJUSTED ERROR vs. CODE
MAX5383/4/5-07
CODE
TUE (LSB)
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX5383/4/5-08
SUPPLY VOLTAGE (V)
(mV)
OFFSET ERROR vs. TEMPERATURE
MAX5383/4/5-09
TEMPERATURE (°C)
OS
(mV)
FULL-SCALE ERROR vs. SUPPLY VOLTAGE
MAX5383/4/5-10
SUPPLY VOLTAGE (V)
FULL-SCALE ERROR (LSB)
FULL-SCALE ERROR (%)
MAX5384
MAX5383
MAX5385
FULL-SCALE ERROR vs. TEMPERATURE
MAX5383/4/5-11
TEMPERATURE (°C)
FULL-SCALE ERROR (LSB)
FULL-SCALE ERROR (%)
MAX5385
MAX5383
MAX5384
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5383/4/5-12
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
MAX5383
MAX5384
MAX5385
SUPPLY CURRENT vs. TEMPERATURE
MAX5383/4/5-13
TEMPERATURE (°C)
SUPPLY CURRENT (MAX5384
MAX5385
MAX5383
NO LOAD
Typical Operating Characteristics (continued)

(VDD= +3.0V (MAX5383), VDD = +5.0V (MAX5384/MAX5385), TA= +25°C, unless otherwise noted.)
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
Typical Operating Characteristics (continued)

(VDD= +3.0V (MAX5383), VDD = +5.0V (MAX5384/MAX5385), TA= +25°C, unless otherwise noted.)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX5383/4/5-16
TEMPERATURE (°C)
SUPPLY CURRENT (
VDD = +5V
VDD = +3V
OUTPUT LOAD REGULATION
MAX5383/4/5-17
LOAD CURRENT (mA)
A: MAX5384/MAX5385, VDD = +4.5V, FULL SCALE OR SOURCING
B: MAX5383, FULL SCALE, VDD = +2.7V SINKING, VDD = +5.0V SOURCING
C: MAX5383, FULL SCALE, VDD = +2.7V SOURCING
D: ZERO CODE, VDD = +2.7V SINKING
E: ZERO CODE, VDD = +5.5V SINKING
OUT
FULL SCALE (V)
OUT
ZERO CODE (V)
4µs/div
OUTPUT VOLTAGE ON POWER-UP

MAX5383/4/5-18
OUT
50mV/div
VDD
2V/div
10µs/div
MAX5383
OUTPUT VOLTAGE
EXITING SHUTDOWN

MAX5383/4/5-19
OUT
500mV/div
3V/div
SHDN TO 0 x 80
MAX5383
OUTPUT SETTLING FROM
1/4FS TO 3/4FS

MAX5383/4/5-20
OUT
0.5V/div
3V/div
MAX5383
OUTPUT SETTLING FROM
3/4FS TO 1/4FS

MAX5383/4/5-21
OUT
0.5V/div
3V/div
SUPPLY CURRENT vs. CODE
MAX5383/4/5-14
CODE
SUPPLY CURRENT (
MAX5384
VDD = +5VMAX5385
VDD = +5V
MAX5383
VDD = +3V
MAX5383
VDD = +5V
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5383/4/5-15
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
Detailed Description
The MAX5383/MAX5384/MAX5385 voltage-output, 8-bit
DACs ensure monotonic performance by offering full 8-
bit performance with less than 1LSB integral nonlineari-
ty error and less than 1LSB differential nonlinearity
error. The devices use a simple 3-wire, SPI/QSPI/
MICROWIRE-compatible serial interface that operates
up to 10MHz. They include an internal reference, an
output buffer, and three low-current shutdown modes,
making these devices ideal for low-power, highly inte-
grated applications. Figure 1 shows the devices’ func-
tional diagram.
Analog Section

The MAX5383/MAX5384/MAX5385 employ a current-
steering DAC topology as shown in Figure 2. At the
core of the DAC is a reference voltage-to-current con-
verter (V/I) that generates a reference current. This cur-
rent is mirrored to 255 equally weighted current
sources. DAC switches control the outputs of these cur-
rent mirrors so that only the desired fraction of the total
current-mirror currents is steered to the DAC output.
The current is then converted to a voltage across a
resistor, and this voltage is buffered by the output
buffer amplifier.
Output Voltage

Table 1 shows the relationship between the DAC code
and the analog output voltage. The 8-bit DAC code is
binary unipolar with 1LSB = (VREF/256). The MAX5383/
MAX5384 have a full-scale output voltage of (+2V - 1LSB)
and (+4V - 1LSB), set by the internal references. The
MAX5385 has a full-scale output voltage of (0.9 ✕VDD-
1LSB).
Output Buffer

The DAC voltage output is an internally buffered unity-
gain follower that slews up to ±0.4V/µs. The output can
swing from 0 to full scale. With a 1/4FS to 3/4FS output
transition, the amplifier outputs typically settle to
1/2LSB in less than 5µs when loaded with 10kΩin par-
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
Typical Operating Characteristics (continued)

(VDD= +3.0V (MAX5383), VDD = +5.0V (MAX5384/MAX5385), TA= +25°C, unless otherwise noted.)
2µs/div
MAX5383
OUTPUT SETTLING
1LSB STEP UP

MAX5383/4/5-22
OUT
20mV/div
AC-COUPLED
0 x 7F TO 0 x 80
3V/div
MAX5383
OUTPUT SETTLING
1LSB STEP DOWN

MAX5383/4/5-23
OUT
20mV/div
AC-COUPLED
2µs/div
0 x 80 TO 0 x 7F
3V/div
Pin Description
PINNAMEDESCRIPTION
OUTDAC Voltage OutputGNDGround
3VDDPower-Supply InputDINSerial Data InputSCLKSerial Clock InputCSChip-Select Input
combination of resistive loads >10kΩand capacitive
loads <50pF.
Power-On Reset

The MAX5383/MAX5384/MAX5385 have a power-on
reset circuit to set the DAC’s output to 0 when VDDis
first applied or when VDDdips below 1.7V (typ). This
ensures that unwanted DAC output voltages will not
occur immediately following a system startup, such as
after a loss of power. The output glitch on startup is typ-
ically less than 50mV.
Shutdown Mode

The MAX5383/MAX5384/MAX5385 include three soft-
ware-controlled shutdown modes that reduce the supply
current to <1µA. All internal circuitry is disabled, and a
known impedance is placed from OUT to GND to
ensure 0V while in shutdown. Table 2 details the three
shutdown modes of operation.
Digital Section
3-Wire Serial Interface

The MAX5383/MAX5384/MAX5385s’ digital interface is
a standard 3-wire connection compatible with
SPI/QSPI/MICROWIRE interfaces. The chip-select input
(CS) frames the serial data loading at the data-input pin
(DIN). Immediately following CS’s high-to-low transition,
the data is shifted synchronously and latched into the
input register on the rising edge of the serial clock input
(SCLK). After 16 bits have been loaded into the serial
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23

REF
CONTROL LOGIC
DATA LATCH
GND
OUT
VDD
CURRENT-STEERING
DAC
SERIAL INPUT REGISTERSCLK
DIN
MAX5383
MAX5384
MAX5385
Figure 1. Functional Diagram
SW1SW2SW255
OUT
VREF
Figure 2. Current-Steering DAC Topology
OUTPUT VOLTAGE
DAC CODE
[D11–D4]MAX5383MAX5384MAX5385

1111 11112V ×
(255/256)
4V ×
(255/256)
0.9 × VDD ×
(255/256)
1000 00001V2V0.9 × VDD / 2
0000 00017.8mV15.6mV0.9 × VDD / 256
0000 0000000
Table 1. Unipolar Code Output Voltage
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