3

Electrical characteristics

Table 4. Electrical characteristics AGND = DGND = 0 V, fSCLK = 3.2 MHz, fSAMPLE = 200 ksps, CL = 50 pF, Ta = 25 °C, all

specifications Tmin to Tmax unless otherwise specified.

Symbol

Parameters

Test conditions

Min.

Typ.

Max.

Unit

Static characteristics

Resolution with no missing codes AVCC = DVCC = 2.7 V to 5.5 V

12

Bits

INL

Integral non-linearity

(end point method)

AVCC = DVCC = 3.3 V

-1.2

±0.4

+1.2

LSB

AVCC = DVCC = 5 V

-1.2

±0.4

+1.2

DNL

Differential non-linearity

AVCC = DVCC = 3.3 V

-0.9

±0.4

+0.9

AVCC = DVCC = 5 V

-0.9

±0.4

+0.9

VOFF

Offset error

AVCC = DVCC = 3.3 V

-2

±0.3

+2

AVCC = DVCC = 5 V

-2

±0.3

+2

OEM

Offset error match

AVCC = DVCC = 3.3 V

-1.5

0

+1.5

AVCC = DVCC = 5 V

-1.5

0

+1.5

FSE

Full scale error

AVCC = DVCC = 3.3 V

-2

±0.4

+2

AVCC = DVCC = 5 V

-2

±0.4

+2

FSEM

Full scale error match

AVCC = DVCC = 3.3 V

-1.5

0

+1.5

AVCC = DVCC = 5 V

-1.5

0

+1.5

Dynamic characteristics

SINAD

Signal-to-noise plus distortion

ratio (0 to Fs/2)

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

69.2

73

dB

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

69.2

73

SNR

Signal-to-noise ratio (0 to Fs/2)

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

71

73

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

71

73

THD

Total harmonic distortion

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

-88

-74

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

-88

-74

SFDR

Spurious-free dynamic range

(0 to Fs/2)

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

75

88

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

75

89

ENOB

Effective number of bits

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

11.2

11.8

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

11.2

11.8

ISO

Channel-to-channel isolation

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 3.3 V

90

dB

FIN = 1.03 kHz, −0.02 dBFS

AVCC = DVCC = 5 V

90

IM2

2nd order intermodulation

FIN = 19.5 / 20.5 kHz, -0.02 dBFS

AVCC = DVCC = 3.3 V

-99

dB

FIN = 19.5 / 20.5 kHz, -0.02 dBFS

AVCC = DVCC = 5 V

-99

ADC1283

Electrical characteristics

DS13932 - Rev 1

page 4/24