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AD9742 Datasheet PDF : 32 Pages
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Data Sheet
AD9742
SPECIFICATIONS
DC SPECIFICATIONS
TMIN to TMAX, AVDD = 3.3 V, DVDD = 3.3 V, CLKVDD = 3.3 V, IOUTFS = 20 mA, unless otherwise noted.
Table 1.
Parameter
RESOLUTION
DC ACCURACY1
Integral Linearity Error (INL)
Differential Nonlinearity (DNL)
ANALOG OUTPUT
Offset Error
Gain Error (Without Internal Reference)
Gain Error (With Internal Reference)
Full-Scale Output Current2
Output Compliance Range
Output Resistance
Output Capacitance
REFERENCE OUTPUT
Reference Voltage
Reference Output Current3
REFERENCE INPUT
Input Compliance Range
Reference Input Resistance (Ext. Reference)
Small Signal Bandwidth
TEMPERATURE COEFFICIENTS
Offset Drift
Gain Drift (Without Internal Reference)
Gain Drift (With Internal Reference)
Reference Voltage Drift
POWER SUPPLY
Supply Voltages
AVDD
DVDD
CLKVDD
Analog Supply Current (IAVDD)
Digital Supply Current (IDVDD)4
Clock Supply Current (ICLKVDD)
Supply Current Sleep Mode (IAVDD)
Power Dissipation4
Power Dissipation5
Power Supply Rejection Ratio—AVDD6
Power Supply Rejection Ratio—DVDD6
OPERATING RANGE
Min
12
−2.5
−1.3
−0.02
−0.5
−0.5
2
−1
1.14
0.1
Typ
±0.5
±0.4
±0.1
±0.1
100
5
1.20
100
1
0.5
0
±50
±100
±50
Max
+2.5
+1.3
+0.02
+0.5
+0.5
20
+1.25
1.26
1.25
2.7
3.3
2.7
3.3
2.7
3.3
33
8
5
5
135
145
−1
−0.04
−40
3.6
3.6
3.6
36
9
6
6
145
+1
+0.04
+85
1 Measured at IOUTA, driving a virtual ground.
2 Nominal full-scale current, IOUTFS, is 32 times the IREF current.
3 An external buffer amplifier with input bias current <100 nA should be used to drive any external load.
4 Measured at fCLOCK = 25 MSPS and fOUT = 1 MHz.
5 Measured as unbuffered voltage output with IOUTFS = 20 mA and 50 Ω RLOAD at IOUTA and IOUTB, fCLOCK = 100 MSPS and fOUT = 40 MHz.
6 ±5% power supply variation.
Unit
Bits
LSB
LSB
% of FSR
% of FSR
% of FSR
mA
V
kΩ
pF
V
nA
V
MΩ
MHz
ppm of FSR/°C
ppm of FSR/°C
ppm of FSR/°C
ppm/°C
V
V
V
mA
mA
mA
mA
mW
mW
% of FSR/V
% of FSR/V
°C
Rev. C | Page 3 of 32
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