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MAX504CSD+ |MAX504CSDMAXIMN/a2avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX504CSD+T |MAX504CSDTMAXIMN/a2500avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX504CSD-T |MAX504CSDTMAXIMN/a150avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX504EPD+ |MAX504EPDMAXIMN/a9avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX515CPA+ |MAX515CPAMAXIMN/a3044avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX515CSA+ |MAX515CSAMAXIMN/a100avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX515CSA+TN/AN/a2500avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
MAX515EPA+ |MAX515EPAMAXIMN/a2avai5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs


MAX515CPA+ ,5V, Low-Power, Voltage-Output, Serial, 10-Bit DACsELECTRICAL CHARACTERISTICS—Single +5V Supply(V = 5V, V = 0V, AGND = DGND = 0V, REFIN = 2.048V (exte ..
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MAX515CSA+T ,5V, Low-Power, Voltage-Output, Serial, 10-Bit DACsMAX504/MAX51519-0280; Rev 2; 11/965V, Low -Pow er, Voltage-Output,Serial 10-Bit DACs_______________
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MAX966EUA ,Single/Dual/Quad / Micropower / Ultra-Low-Voltage / Rail-to-Rail I/O ComparatorsELECTRICAL CHARACTERISTICS(V = +1.6V to +5.5V, T = T to T , unless otherwise noted. Typical values ..
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MAX504CSD+-MAX504CSD+T-MAX504CSD-T-MAX504EPD+-MAX515CPA+-MAX515CSA+-MAX515CSA+T-MAX515EPA+
5V, Low-Power, Voltage-Output, Serial, 10-Bit DACs
_______________General Description
The MAX504/MAX515 are low-power, voltage-output,
10-bit digital-to-analog converters (DACs) specified for
single +5V power-supply operation. The MAX504 can
also be operated with ±5V supplies. The MAX515
draws only 140μA, and the MAX504 (with internal refer-
ence) draws only 260μA. The MAX515 comes in 8-pin
DIP and SO packages, while the MAX504 comes in 14-
pin DIP and SO packages. Both parts have been
trimmed for offset voltage, gain, and linearity, so no fur-
ther adjustment is necessary.
The MAX515’s buffer is fixed at a gain of 2. The MAX504’s
internal op amp may be configured for a gain of 1 or 2, as
well as for unipolar or bipolar output voltages. The
MAX504 can also be used as a four-quadrant multiplier
without external resistors or op amps.
For parallel data inputs, see the MAX503 data sheet.
For a hardware and software compatible 12-bit
upgrade, refer to the MAX531/MAX538/MAX539 data
sheet.
_______________________Applications

Battery-Powered Test Instruments
Digital Offset and Gain Adjustment
Battery-Operated/Remote Industrial Controls
Machine and Motion Control Devices
Cellular Telephones
___________________________Features
Operate from Single +5V SupplyBuffered Voltage OutputInternal 2.048V Reference (MAX504)140μA Supply Current (MAX515)INL = ±1/2LSB (max)Guaranteed Monotonic Over TemperatureFlexible Output Ranges:
0V to VDD(MAX504/MAX515)
VSSto VDD(MAX504)
8-Pin SO/DIP (MAX515)Power-On ResetSerial Data Output for Daisy-Chaining
______________Ordering InformationV, Low-Power, Voltage-Outputrial 10-Bit DACs

VDD
VOUT
REFIN
AGNDDOUT
SCLK
DIN
DIP/SO

TOP VIEW
MAX515
_________________Pin Configurations
________________Functional Diagram

19-0280; Rev 2; 11/96
PARTTEMP. RANGEPIN-PACKAGE
MAX504CPD
0°C to +70°C14 Plastic DIP
MAX504CSD0°C to +70°C14 SO
DAC
10-BIT DAC REGISTER
16-BIT SHIFT REGISTER
DUMMY
BITS
CONTROL
LOGIC
POWER-UP
RESET
2.048V
REFERENCE*
AGND
SCLK
DIN
REFOUT*REFINBIPOFF*
RFB*
VOUT
VDD
DGND*
VSS*
DOUT
(LSB)(MSB)
CLR*
10 DATA BITS
* MAX504 ONLY
MAX504
MAX515
Refer to the MAX531/MAX538/MAX539 data sheet for military tem-
perature or die equivalents.
MAX504 appears at end of data sheet.
MAX504EPD-40°C to +85°C14 Plastic DIP
MAX504ESD-40°C to +85°C14 SO
MAX515CPA
0°C to +70°C8 Plastic DIP
MAX515EPA-40°C to +85°C8 Plastic DIP
MAX515CSA0°C to +70°C8 SO
MAX515ESA-40°C to +85°C8 SO
V, Low-Power, Voltage-Outputrial 10-Bit DACsABSOLUTE MAXIMUM RATINGS
VDDto DGND and VDDto AGND................................-0.3V, +6V
VSSto DGND and VSSto AGND.................................-6V, +0.3V
VDDto VSS.................................................................-0.3V, +12V
AGND to DGND........................................................-0.3V, +0.3V
Digital Input Voltage to DGND......................-0.3V, (VDD + 0.3V)
REFIN..................................................(VSS - 0.3V), (VDD + 0.3V)
REFOUT to AGND.........................................-0.3V, (VDD + 0.3V)
RFB.....................................................(VSS- 0.3V), (VDD + 0.3V)
BIPOFF................................................(VSS- 0.3V), (VDD + 0.3V)
VOUT(Note 1)................................................................VSS, VDD
Continuous Current, Any Pin................................-20mA, +20mA
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
Operating Temperature Ranges
MAX5__C__.........................................................0°C to +70°C
MAX5__E__......................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec).............................+300°C
ELECTRICAL CHARACTERISTICS—Single +5V Supply

(VDD= 5V, VSS= 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX504), CREFOUT= 33μF (MAX504),= 10kΩ, CL= 100pF, 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.
PARAMETERSYMBOLMINTYPMAXUNITS

Unipolar Offset Error VOS03LSB
Differential NonlinearityDNL±1LSB
Unipolar Offset TempcoTCVOS3ppm/°C
Gain Error (Note 2)GE±1LSB
ResolutionN10Bits
Gain-Error Tempco1ppm/°C
Gain-Error Power-Supply
Rejection RatioPSRR0.1LSB/VVDD- 2Output Voltage Range0VDD- 0.4V
Output Load Regulation0.5LSB
Short-Circuit CurrentISC12mA
Voltage Range0VDD- 2V
Input Resistance40kΩ
Input Capacitance1050pF
AC Feedthrough-80dB
CONDITIONS

Guaranteed monotonic
4.5V ≤VDD≤5.5V
MAX504 (G = 1)
MAX504 (G = 2), MAX515
VOUT = 2V, RL= 2kΩ
Code dependent, minimum at code 0101...
Code dependent (Note 3)
REFIN = 1kHz, 2Vp-p
Note 1:
The output may be shorted to VDD, VSS,or AGND if the package power dissipation limit is not exceeded.
Relative Accuracy (Note 2)INL±0.5LSB
Unipolar Offset-Error
Power-Supply Rejection RatioPSRR0.1LSB/V4.5V ≤VDD≤5.5V
REFERENCE INPUT (REFIN)
VOLTAGE OUTPUT (VOUT)
STATIC PERFORMANCE
V, Low-Power, Voltage-Outputrial 10-Bit DACsELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(VDD= 5V, VSS= 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX504), CREFOUT= 33μF (MAX504),= 10kΩ, CL= 100pF, TA= TMINto TMAX, unless otherwise noted.)
PARAMETER

Input Current
SYMBOLMINTYPMAX

IIN±1
UNITS

Noise Voltageen
Input CapacitanceCIN
μVp-p
Power-Supply Rejection Ratio
PSRR200μV/V
ResistanceRREFOUT0.52
Required External CapacitorCREFOUT3.3μF
Output High
Input High
VOH
VIH2.4
VDD - 1
Input Low
VIL0.8V
Output LowVOL0.4V
Voltage-Output Slew RateSR0.150.25V/μs
Voltage-Output Settling Time25μs
Digital Feedthrough
2.0242.0482.072nV-s
Signal-to-Noise Plus DistortionSINAD68dB
CONDITIONS
VIN= 0V or VDD
0.1Hz to 10kHz
4.5V ≤VDD≤5.5V
(Note 4)
ISOURCE= 2mA
ISINK= 2mA= +25°C
To ±1/2LSB, VOUT = 2V= VDD, DIN = 100kHz
REFIN = 1kHz, 2Vp-p (G = 1 or 2),
code = 1111...
Power-Supply CurrentIDD140300μASetup TimetCSS20ns
SCLK Fall to CSFall Hold TimetCSH015ns
SCLK Fall to CSRise Hold TimetCSH10ns
SCLK High WidthtCH35ns
SCLK Low WidthtCL35ns
DIN Setup TimetDS45ns
DIN Hold TimetDH0ns
DOUT Valid Propagation DelaytDOCL= 50pF80nsHigh Pulse WidthtCSW20ns
CLRPulse WidthtCLR25ns
2.0152.081Reference Output VoltageV
2.0112.085Rise to SCLK Rise Setup TimetCS150ns= +25°C
MAX504C
MAX504E
Positive Supply VoltageVDD4.55.5V
REFERENCE OUTPUT (REFOUT—MAX504 Only)
DIGITAL INPUTS (DIN, SCLK, CS, CLR)
DIGITAL OUTPUT (DOUT)
DYNAMIC PERFORMANCE
POWER SUPPLY
SWITCHING CHARACTERISTICS (Note 5)

ppm/°CTemperature CoefficientTCREFOUT
All inputs = 0V or VDD,
output = no load
MAX504
MAX515
V, Low-Power, Voltage-Output,rial 10-Bit DACsPARAMETERSYMBOLMINTYPMAXUNITS
Bipolar Offset ErrorVOS±3
Gain Error (Unipolar or Bipolar)GE
LSB
Differential Nonlinearity
DNL±1LSB
LSB
Gain-Error Tempco
Bipolar Offset TempcoTCVOS3ppm/°Cppm/°C
Gain-Error Power-Supply
Rejection RatioPSRR0.1LSB/V
Voltage Range
Resolution
VSS+ 2VDD- 210
Input Resistance
BitskΩ
Input Capacitance1050pF
AC Feedthrough-80dB
CONDITIONS

BIPOFF = REFIN
Guaranteed monotonic
BIPOFF = REFIN
4.5V ≤VDD≤5.5V, -5.5V ≤VSS≤-4.5V
Code dependent, minimum at code 0101...
Code dependent (Note 3)
REFIN = 1kHz, 2.0Vp-p
ELECTRICAL CHARACTERISTICS—Dual ±5V Supplies (MAX504 Only)

(VDD= 5V, VSS= -5V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, CREFOUT= 33μF, RL= 10kΩ, = 100pF, TA= TMINto TMAX, unless otherwise noted.)
ResistanceRREFOUT(Note 4)0.52Ω
Power-Supply Rejection RatioPSRR4.5V ≤VDD≤5.5V200μV/V0.1Hz to 10kHz400μVp-pNoise Voltage
Required External CapacitorCREFOUT3.3μF
Input HighVIH2.4V
Input LowVIL0.8V
Input CurrentIINVIN= 0V or VDD±1μA
Input CapacitanceCIN8pF
Output HighVOHISOURCE= 2mAVDD- 1V
Output LowVOLISINK= 2mA0.4V
2.0112.085Reference Output Voltage= +25°C
MAX504C
MAX504E
Relative AccuracyINL±0.5LSB
Temperature CoefficientTCREFOUTppm/°C
Offset-Error Power-Supply
Rejection RatioPSRR0.1LSB/V4.5V ≤VDD≤5.5V, -5.5V ≤VSS≤-4.5V
REFERENCE INPUT (REFIN)
REFERENCE OUTPUT (REFOUT—MAX504 Only)
DIGITAL INPUTS (DIN, SCLK, CS)
DIGITAL OUTPUT (DOUT)
V, Low-Power, Voltage-Outputrial 10-Bit DACsNote 2:In single-supply operation, INL and GE calculated from Code 3 to Code 1023.
Note 3:
Guaranteed by design.
Note 4:
Tested at IOUT= 100μA. The reference can typically source up to 5mA (see Typical Operating Characteristics).
Note 5:
The timing characteristics limits for the MAX515 are guaranteed by design.
ELECTRICAL CHARACTERISTICS—Dual ±5V Supplies (MAX504 Only) (continued)

(VDD= 5V, VSS= -5V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, CREFOUT= 33μF, RL= 10kΩ, = 100pF, TA= TMINto TMAX, unless otherwise noted.)
PARAMETERSYMBOLMINTYPMAXUNITS

Voltage-Output Slew RateSR
VDD
V/μs
ISC12
Positive Supply Voltage
0.5LSB
Negative Supply Voltage
Voltage-Output Settling Time16μs
Signal-to-Noise Plus DistortionnV-s
VSS-5.50V
Short-Circuit Current
Digital Feedthrough
SINAD68
Output Load Regulation
VSS + 2VDD - 2Output Voltage RangeVSS + 0.4VDD - 0.4V
CONDITIONS

VOUT = 2V, RL= 2kΩ
To ±1/2LSB, VOUT = 2V
Step all 0s to all 1s
REFIN = 1kHz, 2Vp-p (G = 1)
REFIN = 1kHz, 2Vp-p (G = 2)
(G = 1)
(G = 2)Setup TimetCSS20ns
SCLK Fall to CSFall Hold TimetCSH015ns
SCLK Fall to CSRise Hold TimetCSH10ns
SCLK High WidthtCH35ns
SCLK Low WidthtCL35ns
DIN Setup TimetDS45ns
DIN Hold TimetDH0ns
DOUT Valid Propagation DelaytDOCL= 50pF80nsHigh Pulse WidthtCSW20ns
CLRPulse WidthtCLR25nsRise to SCLK Rise Setup TimetCS150ns
Positive Supply CurrentIDD260400μAAll inputs = 0V or VDD, no load
Negative Supply CurrentISS-120-200μAAll inputs = 0V or VDD, no load
VOLTAGE OUTPUT (VOUT)
DYNAMIC PERFORMANCE
POWER SUPPLY
SWITCHING CHARACTERISTICS
V, Low-Power, Voltage-Output,rial 10-Bit DACs1k100kMAX504
AMPLIFIER SIGNAL-TO-NOISE RATIO

AX504-7
FREQUENCY (Hz)
(d
10k100
REFIN = 4Vp-p
MAX504
GAIN AND PHASE vs.FREQUENCY
AX504-8
FREQUENCY (kHz)
(d100
GAIN
PHASE
RFB CONNECTED TO AGND (G=2)
RFB CONNECTED TO VOUT (G=1)
(d
MAX504 REFERENCE OUTPUT VOLTAGE
vs. REFERENCE LOAD CURRENT
MAX504-9
REFERENCE LOAD CURRENT (mA)
(V
-14100100k
MAX504
GAIN vs. FREQUENCY

AX504-6
FREQUENCY (Hz)
(d
-1010k
REFIN = 4Vp-p
SUPPLY CURRENT vs.
TEMPERATURE
AX504-5
TEMPERATURE (°C)
(m
MAX515
MAX504
MAX504
REFERENCE VOLTAGE vs.
TEMPERATURE
AX504-4
TEMPERATURE (°C)
(V
OUTPUT SINK CAPABILITY vs.
OUTPUT PULL-DOWN VOLTAGE
AX504-1
OUTPUT PULL-DOWN VOLTAGE (V)
(m
VDD-5VDD-1
OUTPUT SOURCE CAPABILITY vs.
OUTPUT PULL-UP VOLTAGE

AX504-2
OUTPUT PULL-UP VOLTAGE (V)
VDD-2
VDD-4VDD-3
VDD-0-110101k100k
ANALOG FEEDTHROUGH vs.
FREQUENCY

AX504-3
FREQUENCY (Hz)
10010k1M
CODE = all 0s
__________________________________________Typical Operating Characteristics

(VDD= +5V, VREFIN= 2.048V, TA= +25°C, unless otherwise noted.)
V, Low-Power, Voltage-Outputrial 10-Bit DACs____________________________Typical Operating Characteristics (continued)
(VDD= +5V, VREFIN= 2.048V, TA= +25°C, unless otherwise noted.)
A: CS RISING EDGE, 5V/div
B: VOUT, NO LOAD, 1V/div
DUAL SUPPLY ±5V
BIPOLAR CONFIGURATION
VREFIN = 2V
NEGATIVE SETTLING TIME (MAX504)
s/div
DIGITAL FEEDTHROUGH

CS = HIGH
A: DIN = 4Vp-p, 100kHz
B: VOUT, 10mV/divs/div
A: CS RISING EDGE, 5V/div
B: VOUT, NO LOAD, 1V/div
DUAL SUPPLY ±5V
BIPOLAR CONFIGURATION
VREFIN = 2V
POSITIVE SETTLING TIME (MAX504)
s/div
V, Low-Power, Voltage-Outputrial 10-Bit DACsFUNCTIONBIPOFFBipolar offset/gain
resistorDINSerial data inputCLRClear. Asynchronously sets
DAC register to all 0s.
PIN
SCLKSerial clock inputCSChip select, active lowDOUTSerial data output for
daisy-chainingDGNDDigital groundAGNDAnalog groundREFINReference inputREFOUT
Reference output,
2.048V. Connect to VDD
if not used.—VSSNegative power supply7VOUTDAC output8VDDPositive power supply—RFBFeedback resistor
MAX504MAX515
NAME
____________________Pin Description_______________Detailed Description
General DAC Discussion

The MAX504/MAX515 use an “inverted” R-2R ladder net-
work with a single-supply CMOS op amp to convert 10-bit
digital data to analog voltage levels (see Functional
Diagram). The term “inverted” describes the ladder net-
work because the REFIN pin in current-output DACs is the
summing junction, or virtual ground, of an op amp.
However, such use would result in the output voltage
being the inverse of the reference voltage. The
MAX504/MAX515’s topology makes the output the same
polarity as the reference input.
An internal reset circuit forces the DAC register to reset
to all 0s on power-up. Additionally, a clear (CLR) pin,
when held low, sets the DAC register to all 0s. CLR
operates asynchronously and independently from the
chip select (CS) pin.
Buffer Amplifier

The output buffer is a unity-gain stable, rail-to-rail output,
BiCMOS op amp. Input offset voltage and CMRR are
trimmed to achieve better than 10-bit performance.
Settling time is 25μs to 0.01% of final value. The output is
short-circuit protected and can drive a 2kΩload with more
than 100pF load capacitance.
tCSH0
tCSStCHtCLtCSH1
tCSW
tDS
tDH
tDO
SCLK
DIN
DOUT
tCS1
Figure 1. Timing Diagram
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