Datasheet

AD9480
Rev. A | Page 3 of 28
DC SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V, T
MIN
= −40°C, T
MAX
= +85°C, A
IN
= −1 dBFS, full scale = 1.0 V, internal reference, differential analog and
clock inputs, unless otherwise noted.
Table 1.
AD9480-250
Parameter Temp Test Level Min Typ Max Unit
RESOLUTION 8 Bits
ACCURACY
No Missing Codes Full VI Guaranteed
Offset Error 25°C I −40 +40 mV
Gain Error
1
25°C I −6.0 +6.0 % FS
Differential Nonlinearity (DNL)
AD9480BSUZ-250 Full VI −0.5 ±0.28 +0.5 LSB
AD9480ASUZ-250 Full VI −0.85 ±0.35 +0.85 LSB
Integral Nonlinearity (INL) Full VI −0.9 ±0.26 +0.9 LSB
TEMPERATURE DRIFT
Offset Error Full V 30 µV/°C
Gain Error Full V 0.03 %FS/°C
Reference Full V ±0.025 mV/°C
REFERENCE
Internal Reference Voltage Full VI 0.97 1.0 1.03 V
Output Current
2
25°C IV 1.5 mA
I
VREF
Input Current
3
25°C I 100 µA
I
SENSE
Input Current
2
25°C I 10 µA
ANALOG INPUTS (VIN+, VIN−)
Differential Input Voltage Range (FS = 1)
4
Full V 1 V p-p
Common-Mode Voltage Full VI 1.7 1.9 2.1 V
Input Resistance 25°C I 8.6 10 10.7 kΩ
Full VI 8.4 10 11.2 kΩ
Input Capacitance 25°C V 4 pF
Analog Bandwidth, Full Power 25°C V 750 MHz
POWER SUPPLY
AVDD Full IV 3.0 3.3 3.6 V
DRVDD Full IV 3.0 3.3 3.6 V
Power Dissipation
5
25°C V 590 mW
Power-Down Dissipation 25°C V 15 mW
I
AVDD
5
Full VI 145 156 mA
I
DRVDD
5
Full VI 34 38 mA
Power Supply Rejection Ratio (PSRR) 25°C V −4.2 mV/V
1
Gain error and gain temperature coefficients are based on the ADC only (with a fixed 1 V external reference and a 1 V p-p differential analog input).
2
Internal reference mode; SENSE = AGND.
3
External reference mode; VREF driven by external 1.0 V reference; SENSE = AVDD.
4
In FS = 1 V, both analog inputs are 500 mV p-p and out of phase with each other.
5
Power dissipation and current measured with rated encode and a dc analog input (outputs static). See for active operation. Figure 13