DAC-1025
10-Bit, 250MSPS, Low-Power D/A Converters
PHYSICAL/ENVIRONMENTAL
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
DVDD to DGND (Pins 27/26)
LIMITS
3.6
UNITS
Volts
PARAMETERS
OperatingTemperature Range, Case
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Thermal Impedance
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Maximum JunctionTemperature
StorageTemperature Range
Maximum LeadTemperature 10s(SOIC lead tipsonly)
MIN.
TYP.
MAX.
UNITS
–40
–55
—
—
+85
+125
°C
°C
AVDDto AGND (Pins 24/20)
3.6
Volts
AGND to DGND (Pins 20/26)
Digital Inputs (Pins 1-14, 15, 28)
Reference InputVoltage Range (Pin 17)
Analog Output Current (21,22)
-0.3 to +0.3
DVDD to DVDD+0.3
AVDD + 0.3
24
Volts
Volts
Volts
mA
—
—
110
—
—
+150
+150
+300
°C/Watt
°C/Watt
°C
°C
°C
Note:
–65
—
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FUNCTIONAL SPECIFICATIONS 1
(Typical at +25°C, AVDD = DVDD = 3.3V ,VREF = Internal, IOUTꢁꢃꢁꢄꢅN"ꢁVOMFTTꢁPUIFSXJTFꢁTQFDJ ꢁFEꢆꢇ
DYNAMIC PERFORMANCEŷ$0/5ꢀŸ
Multi-Tone Power Ratio (8Tones, AVDD = +3.3V, DVDD = +3.3V)
DIGITAL INPUT
Resolution
TEST CONDITION MIN.
TYP.
MAX.
UNITS
10
Logic Levels
Logic "1"
Logic "0"
Input Current HI
Input Current LO
SHTDWN InputCurrent
Fout=18.1MHz to 29.1MHz,
Tones shifted 1.1MHz
Fclk= 125 MHz
Fout=29.1MHz to 46.1MHz,
Tones shifted 2.1MHz
Fclk=250 MHz
71
65
dBc
dBc
DVDD = +3.3V
DVDD = +3.3V
2.3
3.3
0
Volts
Volts
µA
µA
µA
1
-20
-20
-27
20
20
27
Total Harmonic Distortion (AVDD = +3.3V, DVDD = +3.3V)
Fout = 10.1MHz, Fclk = 250MHz
Fout = 10.1MHz, Fclk = 125MHz
Fout = 10.1MHz, Fclk = 62.5MHz
Up to Nyquist
Up to Nyquist
Up to Nyquist
-70
-72
-75
dBc
dBc
dBc
Digital Input Capacitance
STATIC PERFORMANCE
Full Scale Output Current
6
pf
TIMING CHARACTERISTICS
2
20
mA
Data SetupTime (tsu)
Data HoldTime (thld)
Propagation DelayTime (tpd)
Clock (CLK) PulseWidth HI (tPH)
Clock (CLK) PulseWidth LO (tPL)
CLK to Iout Delay (tout)
POWER REQUIREMENTS
Power Supply Rangesŋ
AVDD
1.5
1.3
2.3
ns
ns
ns
ns
ns
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Integral Nonlinearity
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0 ꢀTFUꢀ5FNQDP
Gain Errorħ
Gain Errorħ
GainTempco
GainTempco
Output ComplianceVoltage
Output Capacitance
DYNAMIC PERFORMANCE
Conversion Rate
Output RiseTime
Output FallTime
Output Noise
-0.5
-0.5
-0.0075
0.25
0.25
0.005 + 0.0075
0.1
0.75
0.75
95
+0.5
+0.5
LSB
LSB
% FSR
ppm FSR/°C
% FSR
% FSR
ppm FSR/°C
ppm FSR/°C
Volts
Best Fit Method
2
2
Internal Reference
External Reference
Internal Reference
External Reference
-3
-3
+3
+3
1/Fclk
45
2.7
2.7
3
3
3.6
3.6
Volts
Volts
-1.00
250
1.25
DVDD
10
pf
Power Supply Currents
AVDD (2.7V to 3.6V)
AVDD (2.7V to 3.6V)
DVDD
IOUT = 20mA
IOUT = 2mA
3.3V
26
9
5
2
50
100
30
15
10
mA
mA
mA
mA
mW
290
1.5
1.5
28
MHz
ns
ns
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Q"ꢇƃ)[
Full Scale Step
Full Scale Step
Iout = 2mA
AVDD Shut-Down Mode
Power Dissipation
Power Dissipation
3.3V
3.3V, IOUT = 2mA
3.3V, IOUT = 20mA
60
125
+0.125
Output Noise
Iout = 20mA
50
mW
% FSR/V
3
Spurious Free Dynamic Range (within a window, AVDD = +3.3V DVDD = +3.3V)
Power Supply Rejection Ratio
-0.125
1.2
20MHz Span
30MHz Span
30MHz Span
Fout = 20.1MHz, Fclk = 125MHz
Fout= 40.1MHz, Fclk = 250MHz
Fout= 80.1MHz, Fclk = 250MHz
85
82
72
dBc
dBc
dBc
REFERENCE
Internal ReferenceVoltage
ReferenceVoltage Drift
Reference Current Sink/Source
Reference Input Impedance
1.24
1.28
40
Volts
ppm/°C
µA
3
Spurious Free Dynamic Range (up to Nyquist, AVDD = +3.3V, DVDD = +3.3V)
50
1
Fout= 10.1MHz, Fclk = 62.5MHz
Fout= 20.1MHz, Fclk = 62.5MHz
Fout= 30.1MHz, Fclk = 62.5MHz
Fout= 10.1MHz, Fclk = 125MHz
Fout= 20.1MHz, Fclk = 125MHz
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
74
69
67
76
70
dBc
dBc
dBc
dBc
dBc
.Ȱ
Reference Input Mutiplying
Bandwidth
1.2
MHz
Fout = 30.1MHz, Fclk = 125MHz,
Fout = 40.1MHz, Fclk = 125MHz,
Fout = 50.1MHz, Fclk = 125MHz,
Fout = 10.1MHz, Fclk = 250MHz,
Fout = 20.1MHz, Fclk = 250MHz,
Fout = 40.1MHz, Fclk = 250MHz,
Fout = 80.1MHz, Fclk = 250MHz,
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
Up to Nyquist
67
64
60
72
64
62
50
dBc
dBc
dBc
dBc
dBc
dBc
dBc
NOTES
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4. Reduced dynamic performance may result from operating with supply voltage < 3.0V. In such cases
2mAoutputcurrentisrecommended.
.
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01 Feb 2016 MDA_DAC-1025.C01.D1 Page2 of 6
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