MAX542 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX542 ,+5V, Serial-Input, Voltage-Output 16-Bit DACsGeneral DescriptionRFBTOP VIEWMAX542RFBINVRINVREFFRFB 14 V1 DD16-BIT DACOUTOUT 2 13 INVREFSMAX542AG ..
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MAX542
+5V, Serial-Input, Voltage-Output 16-Bit DACs
General Description
The MAX541/MAX542 are serial-input, voltage-output,
16-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 16-bit perfor-
mance (±1LSB INL and DNL) over temperature without
any adjustments. The DAC output is unbuffered, result-
ing in a low supply current of 0.3mA and a low offset
error of 1LSB.
The DAC output range is 0V to VREF. For bipolar opera-
tion, matched scaling resistors are provided in the
MAX542 for use with an external precision op amp
(such as the MAX400), generating a ±VREFoutput
swing. The MAX542 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 MAX541 is available in 8-pin plastic DIP and SO
packages. The MAX542 is available in 14-pin plastic
DIP and SO packages.
Applications
High-Resolution Offset and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
FeaturesFull 16-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
Interface
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
VDD
INV
DGND
LDACAGNDS
AGNDF
OUT
RFB
TOP VIEW
MAX542
DIN
N.C.
SCLKCS
REFF
REFS
DIP/SO
DINREF
SCLKCS
VDD
DGNDAGND
OUT
MAX541
DIP/SO
General Description
16-BIT DAC
16-BIT DATA LATCH
SERIAL INPUT REGISTER
CONTROL
LOGIC
MAX542
REFF
REFS
LDAC
DIN
SCLK
AGNDS
AGNDF
OUT
INV
RFB
VDD
DGND
RFB
RINV
Functional Diagrams
19-1082; Rev 2; 12/99
PART
MAX541ACPA
MAX541BCPA
MAX541ACSA0°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.
MAX541BCSA0°C to +70°C8 SO
INL
(LSB)
Ordering Information continued at end of data sheet.
MAX541CCPA0°C to +70°C8 Plastic DIP±4
MAX541CCSA0°C to +70°C8 SO±4
Functional Diagrams continued at end of data sheet.
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-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
MAX541 _C_ A/MAX542_C_D..............................0°C to +70°C
MAX541 _E_ A/MAX542_E_D............................-40°C to +85°C
MAX542CMJD.................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX542, bipolar mode
Unipolar mode
(Note 3)
4.75V ≤VDD≤5.25V
MAX542= TMINto TMAX= +25°C
Ratio error= +25°C= TMINto TMAX
VDD= 5V= +25°C
RFB/RINV= TMINto TMAX
(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
LSB±10
±0.015Bipolar Resistor Matching1.0
ROUTDAC Output ResistancekΩ6.25
±0.5±1.0
Bits16NResolution
ppm/°C±0.1Gain-Error Tempco
LSB±10Gain Error (Note 1)±5
ppm/°C±0.05ZSTCZero-Code Tempco
LSB±0.5±2.0INLIntegral Nonlinearity
±0.5±4.0Zero-Code Offset Error
UNITSMINTYPMAXSYMBOLPARAMETER
ZSELSB
MAX54_A
MAX54_B= TMINto TMAX±20Bipolar 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
Guaranteed monotonicLSB±0.5±1.0DNLDifferential Nonlinearity
MAX54_C
STATIC PERFORMANCE—ANALOG SECTION(RL= ∞)
REFERENCE INPUT
MAX542
MAX542%
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-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 8555 hex.
Note 5:Slew-rate value is measured from 0% to 63%.
Note 6:Guaranteed by design. Not production tested.
Code = 0000 hex; CS= VDD;LDAC= 0;
SCLK, DIN = 0 to VDDlevels
Major-carry transition
VIN= 0
Code = 0000 hex, VREF= 1Vp-p at 100kHz
Code = 0000 hex
Code = FFFF hex
(Note 6)
CONDITIONS1.5PDPower Dissipation0.31.1IDDPositive Supply Current4.755.25VDDPositive Supply Range0.40VHHysteresis Voltage10CINInput Capacitance
mVp-p1
nVs10
nVs10DAC Glitch Impulse
Digital Feedthrough±1IINInput Current0.8VILInput Low Voltage2.4VIHInput High Voltage
Reference Feedthrough92SNRSignal-to-Noise RatiopF120CINReference Input Capacitance
UNITSMINTYPMAXSYMBOLPARAMETER
MAX542 (Note 6)
MAX542
(Note 6)
CONDITIONS20VDDHigh to CSLow
(power-up delay)45tCLSCLK Pulse Width Low45tCH
MHz10fCLKSCLK 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
Code = FFFF hexMHz1BWReference -3dB Bandwidth
DYNAMIC PERFORMANCE—REFERENCE SECTION
STATIC PERFORMANCE—DIGITAL INPUTS
POWER SUPPLY
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
__________________________________________Typical Operating Characteristics
(VDD= 5V, VREF= +2.5V, TA = +25°C, unless otherwise noted.)
MAX542-01
SUPPLY CURRENT (mA)
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
MAX542-02
SUPPLY CURRENT (mA)
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
REFERENCE VOLTAGE (V)
MAX542-03
ZERO-CODE OFFSET ERROR (LSB)
ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
TEMPERATURE (°C)
MAX542-04
INL (LSB)
INTEGRAL NONLINEARITY
vs. TEMPERATURE
TEMPERATURE (°C)
+INL
-INL
-1.0010k20k30k40k50k60k70k
MAX542-07
INL (LSB)
INTEGRAL NONLINEARITY
vs. CODE
DAC CODE
MAX542-05
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
TEMPERATURE (°C)
+DNL
-DNL
MAX542-06
GAIN ERROR (LSB)
GAIN ERROR
vs. TEMPERATURE
TEMPERATURE (°C)
-1.0010k20k30k40k50k60k70k
MAX542-08
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. CODE
DAC CODE
12010k20k30k40k50k60k70k
MAX542-09
REFERENCE CURRENT (µA)
REFERENCE CURRENT
vs. CODE
DAC CODE
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
MAX542-10
FULL-SCALE STEP RESPONSE
(fSCLK = 10MHz)
2μs/div
OUT
500mV/div
CL = 10pF
RL = ∞
1μs/div
MAX542-10A
FULL-SCALE STEP RESPONSE
(fSCLK = 20MHz)
2μs/div
OUT
500mV/div
400ns/div
CL = 10pF
RL = ∞
MAX542-11
MAJOR-CARRY OUTPUT GLITCH
2μs/div
(5V/div)
OUT
(AC-COUPLED,
100mV/div)
MAX542-12
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
MAX541
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
________________________________________________Pin Descriptions (continued)------
tCSHOtCHtCSSOtCL
tDH
tDS
tCSH1
tCSS1
tLDACS
tLDAC
SCLK
DIN
LDAC*
*MAX542 ONLY
D15 D14D0
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
MAX542

Partno	Mfg	Dc	Qty	Available	Descript
MAX542	MAXIM	N/a	10	avai	+5V, Serial-Input, Voltage-Output 16-Bit DACs