Data Sheet

AD9645

Rev. 0 | Page 3 of 36

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

Temp

AD9645-80

AD9645-125

Min

Typ

Max

Min

Typ

Max

Unit

RESOLUTION

14

14

Bits

ACCURACY

No Missing Codes

Full

Guaranteed

Guaranteed

Offset Error

Full

−0.6

−0.2

+0.1

−0.6

−0.2

+0.2

% FSR

Offset Matching

Full

−0.2

+0.1

+0.4

−0.2

+0.1

+0.4

% FSR

Gain Error

Full

−4.3

−1.0

+2.2

−5.1

−1.5

+2.3

% FSR

Gain Matching

Full

0.5

2.2

0.6

2.6

% FSR

Differential Nonlinearity (DNL)

Full

−0.6

+1.3

−0.6

+1.3

LSB

25°C

±0.65

±0.65

LSB

Integral Nonlinearity (INL)

Full

−2.6

+2.8

−3.6

+3.4

LSB

25°C

±1.1

±1.5

LSB

TEMPERATURE DRIFT

Offset Error

Full

2.7

3.3

ppm/°C

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

Full

0.98

1.0

1.02

0.98

1.0

1.02

V

Load Regulation at 1.0 mA (V

25°C

2

2

mV

Input Resistance

25°C

7.5

7.5

kΩ

INPUT-REFERRED NOISE

V

25°C

0.95

1.0

LSB rms

ANALOG INPUTS

Differential Input Voltage (V

Full

2

2

V p-p

Common-Mode Voltage

Full

0.9

0.9

V

Common-Mode Range

25°C

0.5

1.3

0.5

1.3

V

Differential Input Resistance

25°C

5.2

5.2

kΩ

Differential Input Capacitance

25°C

3.5

3.5

pF

POWER SUPPLY

AVDD

Full

1.7

1.8

1.9

1.7

1.8

1.9

V

DRVDD

Full

1.7

1.8

1.9

1.7

1.8

1.9

V

I

AVDD

2

Full

56

61

78

83

mA

I

2

Full

48

50

57

60

mA

I

2

25°C

39

48

mA

TOTAL POWER CONSUMPTION

DC Input

Full

178

191

227

244

mW

Sine Wave Input (Two Channels; Includes Output Drivers in

ANSI-644 Mode)

Full

187

200

243

257

mW

Sine Wave Input (Two Channels; Includes Output Drivers in

Reduced Range Mode)

25°C

171

227

mW

Power-Down

25°C

2

2

mW

Standby3

Full

92

101

115

126

mW