AD9251 Analog Devices, AD9251 Datasheet - Page 4

• Manufacturer Part Number: AD9251
• Description: 14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9251

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 80MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9251
SPECIFICATIONS
DC SPECIFICATIONS
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS,
DCS disabled, unless otherwise noted.
Table 1.
Parameter
RESOLUTION
ACCURACY
MATCHING CHARACTERISTICS
TEMPERATURE DRIFT
INTERNAL VOLTAGE REFERENCE
INPUT-REFERRED NOISE
ANALOG INPUT
REFERENCE INPUT RESISTANCE
POWER SUPPLIES
POWER CONSUMPTION
1
2
3
4
Measured with 1.0 V external reference.
Measured with a 10 MHz input frequency at rated sample rate, full-scale sine wave, with approximately 5 pF loading on each output bit.
Input capacitance refers to the effective capacitance between one differential input pin and AGND.
Standby power is measured with a dc input and the CLK active.
No Missing Codes
Offset Error
Gain Error
Differential Nonlinearity (DNL)
Integral Nonlinearity (INL)
Offset Error
Gain Error
Offset Error
Output Voltage (1 V Mode)
Load Regulation Error at 1.0 mA
VREF = 1.0 V
Input Span, VREF = 1.0 V
Input Capacitance
Input Common-Mode Voltage
Input Common-Mode Range
Supply Voltage
Supply Current
DC Input
Sine Wave Input
Sine Wave Input
Standby Power
Power-Down Power
AVDD
DRVDD
IAVDD
IDRVDD
IDRVDD
2
1
1
2
2
(1.8 V)
(3.3 V)
2
2
4
(DRVDD = 1.8 V)
(DRVDD = 3.3 V)
3
2
2
Temp
Full
Full
Full
Full
25°C
Full
25°C
25°C
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
25°C
Full
25°C
Full
Full
Full
Full
Full
Min
14
0.981
0.5
1.7
1.7
AD9251-20/AD9251-40
Typ
±0.1
−1.5
±0.3
±0.6
±0.0
±0.2
±2
0.993
2
0.98
2
6
0.9
7.5
1.8
36.5/49.5
3.4/5.6
6.3/10.6
66/89
71.8/99
86.5/124
37
2.2
Guaranteed
Rev. A | Page 4 of 36
Max
±0.70
±0.60
±1.75
±0.65
1.005
1.3
1.9
3.6
39.4/52.8
77.0/105.5
Min
14
0.981
0.5
1.7
1.7
AD9251-65
Guaranteed
Typ
±0.1
−1.5
±0.45
±0.6
±0.0
±0.2
±2
0.993
2
0.98
2
6
0.9
7.5
1.8
69.0
8.4
16.0
125
139.0
176.7
37
2.2
Max
±0.50
±0.75
±1.75
±0.65
1.005
1.3
1.9
3.6
72.9
146.5
Min
14
0.981
0.5
1.7
1.7
AD9251-80
Guaranteed
Typ
±0.1
−1.5
±0.45
±1.0
±0.0
±0.2
±2
0.993
2
0.98
2
6
0.9
7.5
1.8
80.5
10.3
19.5
145
163.4
209
37
2.2
Max
±0.70
±0.70
±2.50
±0.65
1.005
1.3
1.9
3.6
85.5
173
Unit
Bits
% FSR
% FSR
LSB
LSB
LSB
LSB
% FSR
% FSR
ppm/°C
V
mV
LSB rms
V p-p
pF
V
V
kΩ
V
V
mA
mA
mA
mW
mW
mW
mW
mW