MAX544ACPA+ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX544ACPA+ ,+5V, Serial Input, Voltage-Output 14-Bit DACsELECTRICAL CHARACTERISTICS(V = +5V ± 5%, V = +2.5V, AGND = DGND = 0, T = T to T , unless otherwise ..
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MAX544ACPA+
+5V, Serial Input, Voltage-Output 14-Bit DACs
General Description
The MAX544/MAX545 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 14-bit perfor-
mance (±0.5LSB INL and ±0.9LSB DNL) over tempera-
ture without any adjustments. The DAC output is
unbuffered, resulting in a low supply current of 0.3mA
and a low offset error of 0.6mV.
The DAC output range is 0V to VREF.For bipolar opera-
tion, matched scaling resistors are provided in the
MAX545 for use with an external precision op amp
(such as the MAX400), generating a ±VREFoutput
swing. The MAX545 also includes Kelvin-sense con-
nections for the reference and analog ground pins to
reduce layout sensitivity.
A 16-bit serial word is used to load data into the DAC
latch. The 10MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and it also interfaces
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to 0V
(unipolar mode) when power is initially applied.
The MAX544 is available in 8-pin plastic DIP and SO
packages. The MAX545 is available in 14-pin plastic
DIP and SO packages.
Applications
Digital Offset and Gain Adjustment
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
FeaturesFull 14-Bit Performance Without Adjustments+5V Single-Supply OperationLow Power: 1.5mW1µs Settling Time Unbuffered Voltage Output Directly Drives 60kΩ
LoadsSPI/QSPI/MICROWIRE-Compatible Serial InterfacePower-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)Schmitt-Trigger Inputs for Direct Optocoupler
InterfacePin-Compatible 16-Bit Upgrades
(MAX541/MAX542)
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
VDD
INV
DGND
LDACAGNDS
AGNDF
OUT
RFB
TOP VIEW
MAX545
DIN
N.C.
SCLKCS
REFF
REFS
DIP/SO
DINREF
SCLKCS
VDD
DGNDAGND
OUT
MAX544
DIP/SO
Pin Configurations
14-BIT DAC
DATA LATCH
SERIAL INPUT REGISTER
CONTROL
LOGIC
MAX545
REFF
REFS
DIN
SCLK
AGNDS
AGNDF
OUT
INV
RFB
VDD
DGND
LDAC
RFB
RINV
Functional Diagrams
19-1088; Rev 3; 12/99
PART
MAX544ACPA
MAX544BCPA
MAX544ACSA0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGEPIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX544BCSA0°C to +70°C8 SO
INL
(LSB)
±1/2
±1/2
Ordering Information continued at end of data sheet.
Functional Diagrams continued at end of data sheet.
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= +5V ±5%, VREF= +2.5V, AGND = DGND = 0, TA= TMINto TMAX, unless otherwise noted.)
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 DGND...........................................................-0.3V to +6V
CS, SCLK, DIN, LDACto DGND..............................-0.3V to +6V
REF, REFF, REFS to AGND........................-0.3V to (VDD+0.3V)
AGND, AGNDF, AGNDS to DGND.......................-0.3V to +0.3V
OUT, INV to AGND DGND.......................................-0.3V to VDD
RFB to AGND DGND...................................................-6V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C).....727mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)...800mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
14-Pin Ceramic SB (derate 10.00mW/°C above +70°C...800mW
Operating Temperature Ranges
MAX544 _C_ A/MAX545_C_D..............................0°C to +70°C
MAX544 _E_ A/MAX545_E_D............................-40°C to +85°C
MAX545BMJD.................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX545, bipolar mode
Unipolar mode
(Note 3)
4.75V ≤VDD≤5.25V
MAX545
Ratio error
VDD= 5V
RFB/RINV
(Note 2)
CONDITIONS9.0RREFReference Input Resistance
(Note 4)
11.52.03.0VREFReference Input Range
PSRPower-Supply RejectionLSB±1.0
ppm/°C±0.5BZSTCBipolar Zero Tempco
±10
±0.03Bipolar Resistor Matching1.0
ROUTDAC Output ResistancekΩ6.25
±0.15±0.5
Bits14NResolution
ppm/°C±0.1Gain-Error Tempco
LSBGain Error (Note 1)±5
ppm/°C±0.05ZSTCZero-Code Tempco
LSBINLIntegral Nonlinearity
±0.6Zero-Code Offset Error
UNITSMINTYPMAXSYMBOLPARAMETER
ZSEmV
MAX54_A
Bipolar Zero Offset Error= 10pF (Note 5)25V/µsSRVoltage-Output Slew Rate
DYNAMIC PERFORMANCE—ANALOG SECTION (RL= ∞, unipolar mode)
To ±1/2LSB of FS, CL= 10pF1µsOutput Settling Time
Major-carry transition10nVsDAC Glitch Impulse
Code = 0000 hex; CS= VDD; LDAC= 0V;
SCLK, DIN = 0V to VDDlevels10nVsDigital Feedthrough
Guaranteed monotonicLSB±0.15±0.9DNLDifferential Nonlinearity
STATIC PERFORMANCE—ANALOG SECTION(RL= ∞)
REFERENCE INPUT
MAX545
MAX54_B±0.15±1
LSB
MAX545
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
ELECTRICAL CHARACTERISTICS (continued)
(VDD= +5V ±5%, VREF= +2.5V, AGND = DGND = 0, TA= TMINto TMAX, unless otherwise noted.)
TIMING CHARACTERISTICS
(VDD= +5V ±5%, VREF= +2.5V, AGND = DGND = 0, CMOS inputs, TA= TMINto TMAX, unless otherwise noted.)
Note 1:Gain Error tested at VREF= 2.0V, 2.5V, and 3.0V.
Note 2:ROUTtolerance 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 8554 hex.
Note 5:Slew-rate value is measured from 0% to 63%.
Note 6:Guaranteed by design. Not production tested.
Code = FFFC hex
VIN= 0
Code = 0000 hex, VREF= 1Vp-p at 100kHz
Code = 0000 hex
Code = FFFC hex
(Note 6)
CONDITIONS1.5PDPower Dissipation0.31.1IDDPositive Supply Current4.755.25VDDPositive Supply Range0.40VHHysteresis Voltage10CINInput Capacitance
mVp-p1
MHz1BWReference -3dB Bandwidth±1IINInput Current0.8VILInput Low Voltage2.4VIHInput High Voltage
Reference Feedthrough83SNRSignal-to-Noise RatiopF120CINReference Input Capacitance
UNITSMINTYPMAXSYMBOLPARAMETER
MAX545 (Note 6)
MAX545
(Note 6)
CONDITIONS20VDDHigh to CSLow
(power-up delay)45tCLSCLK Pulse Width Low45tCH
MHz10fSCLKSCLK Frequency
SCLK Pulse Width High50tLDACSCSHigh to LDACLow Setup50tLDACLDACPulse Width0tDHDIN to SCLKHigh Hold40tDSDIN to SCLKHigh Setup45tCSS0CSLow to SCLK High Setup45tCSS1CSHigh to SCLKHigh Setup30tCSH0SCLKHigh to CSLow Hold45tCSH1SCLKHigh to CSHigh Hold
UNITSMINTYPMAXSYMBOLPARAMETER
DYNAMIC PERFORMANCE—REFERENCE SECTION
STATIC PERFORMANCE—DIGITAL INPUTS
POWER SUPPLY
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
Typical Operating Characteristics
(VDD= 5V, VREF= +2.5V, TA = +25°C, unless otherwise noted.)
MAX544/MAX545-01
SUPPLY CURRENT (mA)
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
MAX544/MAX545-02
SUPPLY CURRENT (mA)
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
REFERENCE VOLTAGE (V)
MAX544/MAX545-03
ZERO-CODE OFFSET ERROR (LSB)
TEMPERATURE (°C)
ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
MAX544/MAX545-04
INL (LSB)
TEMPERATURE (°C)
INTEGRAL NONLINEARITY
vs. TEMPERATURE
+INL
-INL
0.2505k10k15k20k
MAX544/MAX545-07
INL (LSB)
INTEGRAL NONLINEARITY
vs. CODE
DAC CODE
MAX544/MAX545-05
DNL (LSB)
TEMPERATURE (°C)
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
+DNL
-DNL
MAX544/MAX545-06
GAIN ERROR (LSB)
TEMPERATURE (°C)
GAIN ERROR
vs. TEMPERATURE
-0.2505k10k15k20k
MAX544/MAX545-08
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. CODE
DAC CODE
1204k8k12k16k20k
MAX544/MAX545-09
REFERENCE CURRENT (
DAC CODE
REFERENCE CURRENT
vs. CODE
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
MAX544-10
FULL-SCALE STEP RESPONSE
(fSCLK = 10MHz)
2μs/div
OUT
500mV/div
CL = 10pF
RL = ∞
1μs/div
MAX544-10A
FULL-SCALE STEP RESPONSE
(fSCLK = 20MHz)
2μs/div
OUT
500mV/div
400ns/div
CL = 10pF
RL = ∞
MAX544/MAX545-11
MAJOR-CARRY OUTPUT GLITCH
2µs/div
OUT
(AC-COUPLED,
100mV/div)
(5V/div)
MAX544/MAX545-12
DIGITAL FEEDTHROUGH
2µs/div
SCLK
5V/div
OUT
(AC-COUPLED,
50mV/div)
CODE = 0000 hex
Typical Operating Characteristics (continued)
(VDD= +5V, VREF= +2.5V, TA = +25°C, unless otherwise noted.)
Pin Descriptions
+5V Supply VoltageVDD8
Digital GroundDGND7
Serial-Data InputDIN6
Serial-Clock Input. Duty cycle must be between 40% and 60%.SCLK5
Chip-Select InputCS4
Voltage Reference Input. Connect to external +2.5V reference.REF3
Analog GroundAGND2
DAC Output VoltageOUT1
FUNCTIONNAMEPIN
MAX544
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
PinDescriptions(continued)------
tCSHOtCHtCSSOtCL
tDH
tDS
tCSH1
tCSS1
tLDACS
tLDAC
SCLK
DIN
LDAC*
*MAX545 ONLY
D13 D12S0
Figure 1. Timing Diagram
+5V Supply VoltageVDD
Digital GroundDGND12
LDACInput. A falling edge updates the internal DAC latch.LDAC11
Serial-Data InputDIN10
No Connection. Not internally connected.N.C.9
Serial-Clock Input. Duty cycle must be between 40% and 60%.SCLK8
Chip-Select InputCS7
Voltage Reference Input (force). Connect REFF to external +2.5V reference.REFF6
Voltage Reference Input (sense). Connect REFS to external +2.5V reference.REFS5
Analog Ground (sense)AGNDS4
Analog Ground (force)AGNDF3
DAC Output VoltageOUT2
Feedback Resistor. Connect to external op amp’s output in bipolar mode.RFB1
FUNCTIONNAMEPIN
Junction of internal scaling resistors. Connect to external op amp’s inverting input in
bipolar mode.INV13
MAX545

Partno	Mfg	Dc	Qty	Available	Descript
MAX544ACPA+ \|MAX544ACPA	MAXIM	N/a	2	avai	+5V, Serial Input, Voltage-Output 14-Bit DACs