AD9251BCPZ-40 데이터 시트보기 (PDF) - Analog Devices

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AD9251BCPZ-40

14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter

Analog Devices 

AD9251

Data Sheet

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

No Missing Codes

Offset Error

Gain Error1

Differential Nonlinearity (DNL)2

Integral Nonlinearity (INL)2

MATCHING CHARACTERISTICS

Offset Error

Gain Error1

TEMPERATURE DRIFT

Offset Error

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

Load Regulation Error at 1.0 mA

INPUT-REFERRED NOISE

VREF = 1.0 V

ANALOG INPUT

Input Span, VREF = 1.0 V

Input Capacitance3

Input Common-Mode Voltage

Input Common-Mode Range

REFERENCE INPUT RESISTANCE

POWER SUPPLIES

Supply Voltage

AVDD

DRVDD

Supply Current

IAVDD2

IDRVDD2 (1.8 V)

IDRVDD2 (3.3 V)

POWER CONSUMPTION

DC Input

Sine Wave Input2 (DRVDD = 1.8 V)

Sine Wave Input2 (DRVDD = 3.3 V)

Standby Power4

Power-Down Power

Temp

Full

AD9251-20/AD9251-40

Min Typ

Max

14

Full

Guaranteed

Full

±0.1

±0.70

Full

−1.5

Full

±0.60

25°C

±0.3

Full

±1.75

25°C

±0.6

25°C

±0.0

±0.65

25°C

±0.2

Full

±2

Full 0.981 0.993

Full

2

1.005

25°C

0.98

Full

2

Full

6

Full

0.9

Full 0.5

1.3

Full

7.5

AD9251-65

AD9251-80

Min Typ Max Min Typ Max Unit

14

14

Bits

Guaranteed

±0.1 ±0.50

−1.5

±0.75

±0.45

±1.75

±0.6

Guaranteed

±0.1 ±0.70

−1.5

±0.70

±0.45

±2.50

±1.0

% FSR

% FSR

LSB

LSB

LSB

LSB

±0.0 ±0.65

±0.2

±0.0 ±0.65 % FSR

±0.2

% FSR

±2

±2

ppm/°C

0.981 0.993 1.005 0.981 0.993 1.005 V

2

2

mV

0.98

0.98

LSB rms

2

2

V p-p

6

6

pF

0.9

0.9

V

0.5

1.3 0.5

1.3 V

7.5

7.5

kΩ

Full 1.7 1.8

1.9

Full 1.7

3.6

1.7 1.8 1.9 1.7 1.8 1.9 V

1.7

3.6 1.7

3.6 V

Full

36.5/49.5 39.4/52.8

69.0 72.9

80.5 85.5 mA

Full

3.4/5.6

8.4

10.3

mA

Full

6.3/10.6

16.0

19.5

mA

Full

66/89

125

145

mW

Full

71.8/99 77.0/105.5

139.0 146.5

163.4 173 mW

Full

86.5/124

176.7

209

mW

Full

37

37

37

mW

Full

2.2

2.2

2.2

mW

1 Measured with 1.0 V external reference.

2 Measured with a 10 MHz input frequency at rated sample rate, full-scale sine wave, with approximately 5 pF loading on each output bit.

3 Input capacitance refers to the effective capacitance between one differential input pin and AGND.

4 Standby power is measured with a dc input and the CLK active.

Rev. B | Page 4 of 36

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