ADCS7477 datasheet(6/33 Pages) TI1

6 / 33 page

ADCS7476, ADCS7477, ADCS7478

SNAS192G – APRIL 2003 – REVISED MAY 2016

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Electrical Characteristics – ADCS7476 (continued)

TA = 25°C, VDD = 2.7 V to 5.25 V, fSCLK = 20 MHz, and fSAMPLE = 1 MSPS (unless otherwise noted)

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIH

Input high voltage

–40°C

≤ TA ≤ 85°C

2.4

VIL

Input low voltage

VDD = 5 V, –40°C ≤ TA ≤ 85°C

0.8

VDD = 3 V, –40°C ≤ TA ≤ 85°C

0.4

IIN

Input current

VIN = 0 V or VDD

TA = 25°C

±10

–40°C

≤ TA ≤ 85°C

±1

µA

CIND

Digital input capacitance

TA = 25°C

–40°C

≤ TA ≤ 85°C

DIGITAL OUTPUT CHARACTERISTICS

VOH

Output high voltage

ISOURCE = 200 µA, VDD = 2.7 V to 5.25 V,

–40°C

≤ TA ≤ 85°C

VDD – 0.2

VOL

Output low voltage

ISINK = 200 µA, –40°C ≤ TA ≤ 85°C

0.4

IOL

TRI-STATE leakage current

–40°C

≤ TA ≤ 85°C

±10

µA

COUT

TRI-STATE output capacitance

TA = 25°C

–40°C

≤ TA ≤ 85°C

Output coding

Straight (natural) binary

AC ELECTRICAL CHARACTERISTICS

fSCLK

Clock frequency

–40°C

≤ TA ≤ 125°C

MHz

SCLK duty cycle

–40°C

≤ TA ≤ 85°C

40%

60%

tTH

Track or hold acquisition time

–40°C

≤ TA ≤ 85°C

400

fRATE

Throughput rate

–40°C

≤ TA ≤ 85°C

MSPS

tAD

Aperture delay

tAJ

Aperture jitter

(1)

Data sheet minimum and maximum specification limits are ensured by design, test, or statistical analysis.

6.6 Electrical Characteristics – ADCS7477

TA = 25°C, VDD = 2.7 V to 5.25 V, fSCLK = 20 MHz, and fSAMPLE = 1 MSPS (unless otherwise noted)

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

STATIC CONVERTER CHARACTERISTICS

Resolution with no missing codes

–40°C

≤ TA ≤ 85°C

Bits

INL

Integral non-linearity

TA = 25°C

±0.2

LSB

–40°C

≤ TA ≤ 85°C

±0.7

DNL

Differential non-linearity

TA = 25°C

–0.2

0.3

LSB

T–40°C

≤ TA ≤ 85°C

±0.7

VOFF

Offset error

TA = 25°C

±0.1

LSB

–40°C

≤ TA ≤ 85°C

±0.7

Gain error

TA = 25°C

±0.2

LSB

–40°C

≤ TA ≤ 85°C

±1

DYNAMIC CONVERTER CHARACTERISTICS

SINAD

Signal-to-noise plus distortion ratio

fIN = 100 kHz

TA = 25°C

61.7

dBFS

–40°C

≤ TA ≤ 85°C

SNR

Signal-to-noise ratio

fIN = 100 kHz

THD

Total harmonic distortion

fIN = 100 kHz

TA = 25°C

–77

–40°C

≤ TA ≤ 85°C

–73

SFDR

Spurious-free dynamic range

fIN = 100 kHz

TA = 25°C

–40°C

≤ TA ≤ 85°C

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