ADC081S101

SNAS310D – JANUARY 2006 – REVISED JANUARY 2014

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ADC081S101 Converter Electrical Characteristics

(1) (2)

The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, fSCLK = 10 MHz to 20 MHz, CL = 15 pF, fSAMPLE = 500

ksps to 1 Msps, unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.

Limits

Symbol

Parameter

Conditions

Typical

Units

(2)

STATIC CONVERTER CHARACTERISTICS

Resolution with No Missing

8

Bits

Codes

LSB

INL

Integral Non-Linearity

VA = +2.7V to +5.25V

±0.05

±0.3

(max)

LSB

DNL

Differential Non-Linearity

VA = +2.7V to +5.25V

±0.07

±0.3

(max)

LSB

VOFF

Offset Error

VA = +2.7V to +5.25V

±0.03

±0.3

(max)

LSB

GE

Gain Error

VA = +2.7V to +5.25V

±0.08

±0.4

(max)

LSB

TUE

Total Unadjusted Error

VA = +2.7V to +5.25V

±0.07

±0.3

(max)

DYNAMIC CONVERTER CHARACTERISTICS

Signal-to-Noise Plus

VA = +2.7 to 5.25V

SINAD

49.7

49

dB (min)

Distortion Ratio

fIN = 100 kHz, −0.02 dBFS

VA = +2.7 to 5.25V

SNR

Signal-to-Noise Ratio

49.7

dB (min)

fIN = 100 kHz, −0.02 dBFS

VA = +2.7 to 5.25V

THD

Total Harmonic Distortion

−77

−65

dB (max)

fIN = 100 kHz, −0.02 dBFS

Spurious-Free Dynamic

VA = +2.7 to 5.25V

SFDR

68

65

dB (min)

Range

fIN = 100 kHz, −0.02 dBFS

VA = +2.7 to 5.25V

ENOB

Effective Number of Bits

7.9

7.8

Bits (min)

fIN = 100 kHz, −0.02 dBFS

Intermodulation Distortion,

VA = +5.25V

−68

dB

Second Order Terms

fa = 103.5 kHz, fb = 113.5 kHz

IMD

Intermodulation Distortion,

VA = +5.25V

−68

dB

Third Order Terms

fa = 103.5 kHz, fb = 113.5 kHz

VA = +5V

11

MHz

FPBW

-3 dB Full Power Bandwidth

VA = +3V

8

MHz

ANALOG INPUT CHARACTERISTICS

VIN

Input Range

0 to VA

V

IDCL

DC Leakage Current

±1

µA (max)

Track Mode

30

pF

CINA

Input Capacitance

Hold Mode

4

pF

DIGITAL INPUT CHARACTERISTICS

VA = +5.25V

2.4

VIH

Input High Voltage

V (min)

VA = +3.6V

2.1

VA = +5V

0.8

V (max)

VIL

Input Low Voltage

VA = +3V

0.4

V (max)

IIN

Input Current

VIN = 0V or VA

±10 nA

±1

µA (max)

CIND

Digital Input Capacitance

2

4

pF (max)

DIGITAL OUTPUT CHARACTERISTICS

ISOURCE = 200 µA

VA − 0.07

VA − 0.2

V (min)

VOH

Output High Voltage

ISOURCE = 1 mA

VA − 0.1

V

ISINK = 200 µA

0.03

0.4

V (max)

VOL

Output Low Voltage

ISINK = 1 mA

0.1

V

(1)

Tested limits are specified to TI's AOQL (Average Outgoing Quality Level).

(2)

Data sheet min/max specification limits are ensured by design, test, or statistical analysis.

4

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