ADC14L040 datasheet(6/23 Pages) NSC

6 / 23 page

Converter Electrical Characteristics (Continued)

Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V

A =VD = +3.3V, VDR =

+2.5V, PD = 0V, External V

REF = +1.0V, fCLK = 40 MHz, fIN = 20 MHz at -0.5dBFS, tr =tf = 2 ns, CL = 15 pF/pin, Duty Cycle

Stabilizer On. Boldface limits apply for T

J =TMIN to TMAX: all other limits TJ = 25˚C (Notes 7, 8, 9)

Symbol

Parameter

Conditions

Typical

(Note 10)

Limits

(Note 10)

Units

(Limits)

DYNAMIC CONVERTER CHARACTERISTICS

FPBW

Full Power Bandwidth

0 dBFS Input, Output at −3 dB

150

MHz

SNR

Signal-to-Noise Ratio

IN = 10 MHz

dBc

IN = 20 MHz

73.3

71.7

dBc

SINAD

Signal-to-Noise Ratio and

Distortion

IN = 10 MHz

73.5

dBc

IN = 20 MHz

71.5

dBc

ENOB

Effective Number of Bits

IN = 10 MHz

Bits

IN = 20 MHz

11.9

11.6

Bits

THD

Total Harmonic Disortion

IN = 10 MHz

-86

dBc

IN = 20 MHz

-86

-77

dBc

Second Harmonic Distortion

IN = 10 MHz

-93

dBc

IN = 20 MHz

-91

-80

dBc

Third Harmonic Distortion

IN = 10 MHz

-90

dBc

IN = 20 MHz

-94

-80

dBc

SFDR

Spurious Free Dynamic Range

IN = 10 MHz

dBc

IN = 20 MHz

dBc

IMD

Intermodulation Distortion

IN = 9.6 MHz and 10.2 MHz,

each = −6.5 dBFS

−79

dBFS

DC and Logic Electrical Characteristics

Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V

A =VD = +3.3V, VDR =

+2.5V, PD = 0V, External V

REF = +1.0V, fCLK = 40 MHz, fIN = 20 MHz, tr =tf = 2 ns, CL = 15 pF/pin, Duty Cycle Stabilizer On.

Boldface limits apply for T

J =TMIN to TMAX: all other limits TJ = 25˚C (Notes 7, 8, 9)

Symbol

Parameter

Conditions

Typical

(Note 10)

Limits

(Note 10)

Units

(Limits)

CLK, PD DIGITAL INPUT CHARACTERISTICS

IN(1)

Logical “1” Input Voltage

D = 3.6V

2.0

V (min)

IN(0)

Logical “0” Input Voltage

D = 3.0V

1.0

V (max)

IN(1)

Logical “1” Input Current

IN = 3.3V

µA

IN(0)

Logical “0” Input Current

IN = 0V

−10

µA

Digital Input Capacitance

D0–D13 DIGITAL OUTPUT CHARACTERISTICS

OUT(1)

Logical “1” Output Voltage

OUT = −0.5 mA

DR = 2.5V

2.3

V (min)

DR =3V

2.7

V (min)

OUT(0)

Logical “0” Output Voltage

OUT = 1.6 mA, VDR =3V

0.4

V (max)

Output Short Circuit Source

Current

OUT = 0V

−10

−I

Output Short Circuit Sink Current

OUT =VDR

OUT

Digital Output Capacitance

POWER SUPPLY CHARACTERISTICS

Analog Supply Current

PD Pin = DGND, V

REF =VA

PD Pin = V

4.5

mA (max)

Digital Supply Current

PD Pin = DGND

PD Pin = V

D ,fCLK =0

mA (max)

Digital Output Supply Current

PD Pin = DGND, C

L = 5 pF (Note 14)

PD Pin = V

D,fCLK =0

Total Power Consumption

PD Pin = DGND, C

L = 5 pF (Note 15)

235

323

mW (max)

ADC14L040 Datasheet(PDF) 6 Page - National Semiconductor (TI)

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