AD9481 Analog Devices, AD9481 Datasheet - Page 3

• Manufacturer Part Number: AD9481
• Description: 8-Bit, 250 MSPS, 3.3 V A/D Converter
• Manufacturer: Analog Devices

Specifications of AD9481

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 250MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,1 V p-p
• Adc Architecture: Pipelined
• Pkg Type: QFP

DC SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V; T
clock inputs, unless otherwise noted.
Table 1.
Parameter
RESOLUTION
ACCURACY
TEMPERATURE DRIFT
REFERENCE
ANALOG INPUTS (VIN+, VIN−)
POWER SUPPLY
1
2
3
4
5
Gain error and gain temperature coefficients are based on the ADC only (with a fixed 1 V external reference and 1 V p-p input range).
Internal reference mode; SENSE = AGND.
External reference mode; VREF driven by external 1.0 V reference; SENSE = AVDD.
In FS = 1 V, both analog inputs are 500 mV p-p and out of phase with each other.
Supply current measured with rated encode and a 20 MHz analog input. Power dissipation measured with dc input, see the T
rate.
No Missing Codes
Offset Error
Gain Error
Differential Nonlinearity (DNL)
Integral Nonlinearity (INL)
Offset Error
Gain Error
Reference
Internal Reference Voltage
Output Current
I
I
Differential Input Voltage Range
Common-Mode Voltage
Input Resistance
Input Capacitance
Analog Bandwidth, Full Power
AVDD
DRVDD
Supply Currents
Power Dissipation
Power-Down Dissipation
Power Supply Rejection Ratio (PSRR)
VREF
SENSE
IAVDD
IDRVDD
Input Current
Input Current
5
1
5
2
3
5
2
4
MIN
= −40°C, T
MAX
= +85°C, A
Temp
Full
25°C
25°C
Full
Full
Full
Full
Full
Full
25°C
25°C
25°C
Full
Full
Full
25°C
25°C
Full
Full
Full
Full
25°C
25°C
25°C
Rev. 0 | Page 3 of 28
IN
= −1 dBFS, full scale = 1.0 V, internal reference, differential analog and
Test Level
VI
I
I
VI
VI
V
V
V
VI
IV
I
I
V
VI
V
V
IV
IV
VI
VI
V
V
V
VI
Min
−40
−6.0
−0.85
−0.9
0.97
1.6
8.4
3.0
3.0
Typ
8
Guaranteed
±0.35
±0.26
30
0.03
±0.025
1.0
1
1.9
10
4
750
3.3
3.3
133
39
439
15
−4.2
AD9481-250
erminology
section for power vs. clock
Max
40
6.0
0.85
0.9
1.03
1.5
100
10
2.1
11.2
3.6
3.6
145
42.5
37
AD9481
Unit
Bits
mV
% FS
LSB
LSB
µV/°C
% FS/°C
mV/°C
V
mA
µA
µA
V p-p
V
kΩ
pF
MHz
V
V
mA
mA
mW
mW
mV/V