AD9645 Просмотр технического описания (PDF) - Analog Devices

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AD9645

Dual, 14-Bit, 80 MSPS/125 MSPS, Serial LVDS 1.8 V Analog-to-Digital Converter

Analog Devices 

Data Sheet

AD9645

SPECIFICATIONS

DC SPECIFICATIONS

AVDD = 1.8 V, DRVDD = 1.8 V, 2 V p-p differential input, 1.0 V internal reference, AIN = −1.0 dBFS, unless otherwise noted.

Table 1.

Parameter1

RESOLUTION

ACCURACY

No Missing Codes

Offset Error

Offset Matching

Gain Error

Gain Matching

Differential Nonlinearity (DNL)

Integral Nonlinearity (INL)

TEMPERATURE DRIFT

Offset Error

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

Load Regulation at 1.0 mA (VREF = 1 V)

Input Resistance

INPUT-REFERRED NOISE

VREF = 1.0 V

ANALOG INPUTS

Differential Input Voltage (VREF = 1 V)

Common-Mode Voltage

Common-Mode Range

Differential Input Resistance

Differential Input Capacitance

POWER SUPPLY

AVDD

DRVDD

IAVDD2

IDRVDD (ANSI-644 Mode)2

IDRVDD (Reduced Range Mode)2

TOTAL POWER CONSUMPTION

DC Input

Sine Wave Input (Two Channels; Includes Output Drivers in

ANSI-644 Mode)

Sine Wave Input (Two Channels; Includes Output Drivers in

Reduced Range Mode)

Power-Down

Standby3

Temp

AD9645-80

Min Typ Max

14

Full

Guaranteed

Full −0.6 −0.2 +0.1

Full −0.2 +0.1 +0.4

Full −4.3 −1.0 +2.2

Full

0.5 2.2

Full −0.6

+1.3

25°C

±0.65

Full −2.6

+2.8

25°C

±1.1

Full

2.7

Full 0.98 1.0 1.02

25°C

2

25°C

7.5

25°C

0.95

Full

2

Full

0.9

25°C 0.5

1.3

25°C

5.2

25°C

3.5

Full 1.7 1.8 1.9

Full 1.7 1.8 1.9

Full

56

61

Full

48

50

25°C

39

Full

178 191

Full

187 200

25°C

171

25°C

2

Full

92

101

AD9645-125

Min Typ Max Unit

14

Bits

Guaranteed

−0.6 −0.2 +0.2

−0.2 +0.1 +0.4

−5.1 −1.5 +2.3

0.6 2.6

−0.6

+1.3

±0.65

−3.6

+3.4

±1.5

% FSR

% FSR

% FSR

% FSR

LSB

LSB

LSB

LSB

3.3

ppm/°C

0.98 1.0

2

7.5

1.02 V

mV

kΩ

1.0

LSB rms

2

V p-p

0.9

V

0.5

1.3

V

5.2

kΩ

3.5

pF

1.7

1.8 1.9

V

1.7

1.8 1.9

V

78

83

mA

57

60

mA

48

mA

227 244 mW

243 257 mW

227

mW

2

mW

115 126 mW

1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for definitions and for details on how these tests were completed.

2 Measured with a low input frequency, full-scale sine wave on both channels.

3 Can be controlled via the SPI.

Rev. B | Page 3 of 36

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