ADC12DL040

SNAS250D – FEBRUARY 2005 – REVISED APRIL 2013

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Converter Electrical Characteristics (continued)

Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, VA = VD = +3.0V, VDR =

+2.5V, PD = 0V, External VREF = +1.0V, fCLK = 40 MHz, fIN = 10 MHz, tr = tf = 2 ns, CL = 15 pF/pin, Duty Cycle Stabilizer On,

parallel output mode. Boldface limits apply for TJ = TMIN to TMAX: all other limits TJ = 25°C

(1) (2) (3)

Typical

Limits

Units

Symbol

Parameter

Conditions

(4)

(4)

(Limits)

fIN = 1 MHz, VIN = −0.5 dBFS

68.5

dB

SINAD

Signal-to-Noise and Distortion

fIN = 10 MHz, VIN = −0.5 dBFS

68.5

67

dB (min)

fIN = 20 MHz, VIN = −0.5 dBFS

68.5

66.5

dB

fIN = 1 MHz, VIN = −0.5 dBFS

11.1

Bits

ENOB

Effective Number of Bits

fIN = 10 MHz, VIN = −0.5 dBFS

11.1

10.8

Bits (min)

fIN = 20 MHz, VIN = −0.5 dBFS

11.1

10.75

Bits

fIN = 1 MHz, VIN = −0.5 dBFS

−82

dB

THD

Total Harmonic Distortion

fIN = 10 MHz, VIN = −0.5 dBFS

−83

-75

dB (min)

fIN = 20 MHz, VIN = −0.5 dBFS

−83

-75

dB

fIN = 1 MHz, VIN = −0.5 dBFS

−88

dB

H2

Second Harmonic Distortion

fIN = 10 MHz, VIN = −0.5 dBFS

−86

-76

dB (min)

fIN = 20 MHz, VIN = −0.5 dBFS

−86.5

-75

dB

fIN = 1 MHz, VIN = −0.5 dBFS

−86

dB

H3

Third Harmonic Distortion

fIN = 10 MHz, VIN = −0.5 dBFS

−87

-77

dB (min)

fIN = 20 MHz, VIN = −0.5 dBFS

−86.5

-76

dB

fIN = 1 MHz, VIN = −0.5 dBFS

86

dB

SFDR

Spurious Free Dynamic Range

fIN = 10 MHz, VIN = −0.5 dBFS

85

76

dB (min)

fIN = 20 MHz, VIN = −0.5 dBFS

84

75

dB

fIN = 9.6 MHz and 10.2 MHz, each = −6.5

IMD

Intermodulation Distortion

−75

dBFS

dBFS

INTER-CHANNEL CHARACTERISTICS

Channel—Channel Offset Match

±0.3

%FS

Channel—Channel Gain Match

±4

%FS

10 MHz Tested Channel;

90

dB (min)

20 MHz Other Channel

Crosstalk

20 MHz Tested Channel;

90

dB (min)

10 MHz Other Channel

8

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