Datasheet

AD9740
Rev. B | Page 4 of 32
SPECIFICATIONS
DC SPECIFICATIONS
T
MIN
to T
MAX
, AVDD = 3.3 V, DVDD = 3.3 V, CLKVDD = 3.3 V, I
OUTFS
= 20 mA, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit
RESOLUTION 10 Bits
DC ACCURACY
1
Integral Linearity Error (INL) −0.7 ±0.15 +0.7 LSB
Differential Nonlinearity (DNL) −0.5 ±0.12 +0.5 LSB
ANALOG OUTPUT
Offset Error −0.02 +0.02 % of FSR
Gain Error (Without Internal Reference) −2 ±0.1 +2 % of FSR
Gain Error (With Internal Reference) −2 ±0.1 +2 % of FSR
Full-Scale Output Current
2
2 20 mA
Output Compliance Range −1 +1.25 V
Output Resistance 100 kΩ
Output Capacitance 5 pF
REFERENCE OUTPUT
Reference Voltage 1.14 1.20 1.26 V
Reference Output Current
3
100 nA
REFERENCE INPUT
Input Compliance Range 0.1 1.25 V
Reference Input Resistance (External Reference) 7 kΩ
Small Signal Bandwidth 0.5 MHz
TEMPERATURE COEFFICIENTS
Offset Drift 0 ppm of FSR/°C
Gain Drift (Without Internal Reference) ±50 ppm of FSR/°C
Gain Drift (With Internal Reference) ±100 ppm of FSR/°C
Reference Voltage Drift ±50 ppm/°C
POWER SUPPLY
Supply Voltages
AVDD 2.7 3.3 3.6 V
DVDD 2.7 3.3 3.6 V
CLKVDD 2.7 3.3 3.6 V
Analog Supply Current (I
AVDD
) 33 36 mA
Digital Supply Current (I
DVDD
)
4
8 9 mA
Clock Supply Current (I
CLKVDD
) 5 6 mA
Supply Current Sleep Mode (I
AVDD
) 5 6 mA
Power Dissipation
4
135 145 mW
Power Dissipation
5
145 mW
Power Supply Rejection Ratio—AVDD
6
−1 +1 % of FSR/V
Power Supply Rejection Ratio—DVDD
6
−0.04 +0.04 % of FSR/V
OPERATING RANGE −40 +85 °C
1
Measured at IOUTA, driving a virtual ground.
2
Nominal full-scale current, I
OUTFS
, is 32 times the I
REF
current.
3
An external buffer amplifier with input bias current <100 nA should be used to drive any external load.
4
Measured at f
CLOCK
= 25 MSPS and f
OUT
= 1 MHz.
5
Measured as unbuffered voltage output with I
OUTFS
= 20 mA, 50 Ω R
LOAD
at IOUTA and IOUTB, f
CLOCK
= 100 MSPS, and f
OUT
= 40 MHz.
6
±5% power supply variation.