MAX5223EKA Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX5223EKA
Low-Power, Dual, 8-Bit, Voltage-Output Serial DAC in 8-Pin SOT23
neral DescriptionThe MAX5223 contains two 8-bit, buffered, voltage out-
put digital-to-analog converters (DAC A and DAC B) in a
small 8-pin SOT23 package. DAC outputs can source
and sink 1mA to within 100mV of ground and VDD. The
MAX5223 operates with a single +2.7V to +5.5V supply.
The device uses a 3-wire serial interface, which oper-
ates at clock rates up to 25MHz and is compatible with
SPI™, QSPI™, and MICROWIRE™ interface standards.
The serial input shift register is 16 bits long and con-
sists of 8 bits of DAC input data and 8 bits for DAC
selection and shutdown control. DAC registers can be
loaded independently or in parallel at the positive edge
of CS.
The MAX5223’s ultra-low power consumption and tiny
8-pin SOT23package make it ideal for portable and
battery-powered applications. Supply current is a low
100μA and drops below 1μA in shutdown mode. In
addition, the reference input is disconnected from the
REF pin during shutdown, which reduces the system’s
total power consumption.
________________________Applications
Digital Gain and Offset Adjustment
Programmable Current Source
Programmable Voltage Source
Power Amp Bias Control
VCO Tuning
FeaturesTiny 8-Pin SOT23 Package (3mm ✕3mm)Low Power Consumption
100μA Operating Current
<1μA Shutdown Current+2.7V to +5.5V Single-Supply OperationDual Buffered Voltage OutputProgrammable Shutdown Mode25MHz, 3-Wire Serial InterfaceSPI, QSPI, and MICROWIRE-Compatible
Low-Power, Dual, 8-Bit, Voltage Outputrial DAC in 8-Pin SOT2
DAC
LATCH
DAC A
DAC
LATCH
DAC B
SCLK
OUTA
OUTB
DINREFVDD
(8
(8
MAX52233
0.1μF
(OPTIONAL)
VOUTA
VOUTB
GND2
0.22μF
Functional Diagram
OUTBVDD
OUTASCLK
DIN
REFGND
MAX5223
TOP VIEW
SOT23-8
Pin Configuration
19-1895; Rev 0; 1/01
PARTTEMP. RANGEPIN-PACKAGE
MAX5223EKA-T-40°C to +85°C8 SOT23
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIREis a trademark of National Semiconductor Corp.
Ordering Information
Low-Power, Dual, 8-Bit, Voltage Output rial DAC in 8-Pin SOT23
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= +2.7V to +5.5V, REF = VDD, 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.
VDDto GND.............................................................-0.3V to +6V
All Other Pins to GND (Note 1)..................-0.3V to (VDD+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
8-Pin SOT23 (derate 8.7mW/°C above +70°C)............696mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAX
ResolutionN8
±0.3±1
±0.2±1
GNDVDD16REF
0.7 x VDD
0.3 x VDD
0.1±10(Note 4)
VIN= 0 or VDD
ILOAD= 0
(Note 3)
2.7V ≤VDD≤3.6V, VREF= 2.4V,
ILOAD= 250μA
4.5V ≤VDD≤5.5V, VREF= 4.096V,
ILOAD= 250μA
Guaranteed monotonic, ILOAD= 250μA (Note 2)
ILOAD= 250μA (Note 2)INL
DNL
TUE
VZS
TCVZS
PSRR
RREF
VIH
VIL
IIN
CINInput Capacitance
Input Current
Input Low Voltage
Input High Voltage
Output Resistance
Capacitive Load at OUT_
Output Voltage Range
Reference Input Resistance
(Shutdown Mode)
Reference Input Resistance
Reference Input Capacitance
Reference Input Voltage Range
Power Supply Rejection Ratio
Zero-Code Temperature
Coefficient
Zero-Code Offset
Total Unadjusted Error
Differential Nonlinearity
Integral Nonlinearity
mV/V
μV/°C
LSB
LSB
LSB
Bits
UNITS
STATIC PERFORMANCE
REFERENCE INPUT
DAC OUTPUTS
DIGITAL INPUTS
Low-Power, Dual, 8-Bit, Voltage Outputrial DAC in 8-Pin SOT2
Note 1:The outputs may be shorted to VDDor GND if the package power dissipation is not exceeded. Typical short-circuit current to
GND is 70mA.
Note 2:Reduced digital code range (code 24 through code 232) is due to swing limitations of the output amplifiers. See Typical
Operating Characteristics.
Note 3:Reference input resistance is code-dependent. The lowest input resistance occurs at code 55hex. See the Reference Input
section.
Note 4:Guaranteed by design. Not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(VDD= +2.7V to +5.5V, REF = VDD, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
TIMING CHARACTERISTICS
(Figure 3, VDD= +2.7V to +5.5V, TA= TMINto TMAX, unless otherwise noted.) (Note 4)
VDD= +3.6V
VDD= +5.5V
100220μA150275All inputs = 0IDDSupply Current0.6VDD= +5.5VShutdown Supply Current2.75.5VDDSupply Voltage Range
nV-s0.25All zeros to all onesDigital Feedthrough
and CrosstalkTo ±1⁄2LSB, CL= 100pFVoltage Output Settling Time
V/μs0.15CL= 100pFSRVoltage Output Slew Rate
PARAMETERSYMBOLMINTYPMAXUNITSCONDITIONS
SERIAL INTERFACE TIMING
CONDITIONS50tCSPWH–C—S–Pulse Width High20tCLSCLK Pulse Width Low20tCHSCLK Pulse Width High20tDHDIN to SCLK Rise Hold Time20tDSDIN to SCLK Rise Setup Time
UNITSMINTYPMAXSYMBOLPARAMETER50tCSS50tCSHSCLK Rise to –C—S–Rise Setup Time
DYNAMIC PERFORMANCE
POWER SUPPLYC—S–Fall to SCLK Rise Setup Time
POSITIVE SUPPLY CURRENT
vs. TEMPERATURE
AX5223 toc07
TEMPERATURE (°C)
(m
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
AX5223 toc08
SUPPLY VOLTAGE (V)
(μ
0.11101001k10k
REFERENCE SMALL SIGNAL
FREQUENCY RESPONSE
X5223 toc09
FREQUENCY (Hz)
(d
Low-Power, Dual, 8-Bit, Voltage Output rial DAC in 8-Pin SOT23
__________________________________________Typical Operating Characteristics
(VDD= +3V, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE
vs. OUTPUT SOURCE CURRENT
AX5223 toc01
OUTPUT SOURCE CURRENT (mA)
(V
INTEGRAL NONLINEARITY
vs. DIGITAL CODE
AX5223 toc04
CODE
(L
OUTPUT VOLTAGE vs.
OUTPUT SOURCE CURRENT (VDD = +5V)
5223 toc02
OUTPUT SOURCE CURRENT (mA)
(V
OUTPUT VOLTAGE
vs. OUTPUT SINK CURRENT
AX5223 toc03
OUTPUT SINK CURRENT (mA)
(m
DIFFERENTIAL NONLINEARITY
vs. DIGITAL CODE
AX5223 toc05
CODE
(L
POSITIVE SUPPLY CURRENT
vs. SUPPLY VOLTAGE
AX5223 toc06
VDD (V)
(m
Low-Power, Dual, 8-Bit, Voltage Outputrial DAC in 8-Pin SOT2
Typical Operating Characteristics (continued)
(VDD= +3V, TA = +25°C, unless otherwise noted.)
CS = HIGH, SCLK = 5MHz
50ns/div
CLOCK FEEDTHROUGH
MAX5223 toc11
CH1
CH2
SCLK, 5MHz
0 TO 3V
5V/div
OUT_
10mV/div
AC-COUPLED
POWER-UP OUTPUT GLITCH
MAX5223 toc12
VDD = 0 TO 5V
RISE TIME = FALL TIME = 10μs
VDD
2V/div
OUT_
50mV/div
100μs/div
POWER-UP OUTPUT GLITCH
MAX5223 toc13
VDD = 0 TO 5V
RISE TIME = FALL TIME = 1ms
VDD
2V/div
OUT_
20mV/div
2ms/div
LARGE-SIGNAL OUTPUT STEP RESPONSE
MAX5223 toc10
VREF = VDD = +3V
RL = 10kΩ, CL = 100pF
2V/div
OUT_
1V/div
10μs/div
NEGATIVE SETTLING TIME
MAX5223 toc14
VDD = REF = +3V
RL = 10kΩ, CL =100pF
ALL DATA BITS OFF TO ALL DATA BITS ON
2V/div
OUT_
1V/div
4μs/div
POSITIVE SETTLING TIME
MAX5223 toc15
VDD = REF = +3V
RL = 10kΩ, CL =100pF
ALL DATA BITS OFF TO ALL DATA BITS ON
2V/div
OUT_
1V/div
4μs/div
Low-Power, Dual, 8-Bit, Voltage Output rial DAC in 8-Pin SOT23
Typical Operating Characteristics (continued)
(VDD= +3V, TA = +25°C, unless otherwise noted.)
2ms/div
OUTPUT VOLTAGE NOISE (DC TO 1MHz)
MAX5223 toc16
CH1OUTA
2mV/div
AC-COUPLED
VDD = +3V, REF = VDD, NO LOAD,
DIGITAL CODE = FF
______________________________________________________________Pin Description
DAC A Output Voltage (Buffered)OUTA5
DAC B Output Voltage (Buffered)OUTB6
Reference Input for DAC A and DAC B (Optional: Bypass with 0.1μF to GND)REF7
Serial Data Input of the 16-Bit Shift Register. Data is clocked into the register on the rising edge of SCLK.DIN8
Serial Clock InputSCLK4
Positive Power Supply (+2.7V to +5.5V). Bypass with 0.22μF to GND.VDD3
PIN
GroundGND2
Chip Select. Active-Low. Enables data to be shifted into the 16-bit shift register. Programming commands
are executed at the rising edge of –C—S–.C—S–1
FUNCTIONNAME

Partno	Mfg	Dc	Qty	Available	Descript
MAX5223EKA	MAX	N/a	87	avai	Low-Power, Dual, 8-Bit, Voltage-Output Serial DAC in 8-Pin SOT23