ADCS7477 datasheet(7/33 Pages) TI1

7 / 33 page

ADCS7476, ADCS7477, ADCS7478

www.ti.com

SNAS192G – APRIL 2003 – REVISED MAY 2016

Product Folder Links: ADCS7476 ADCS7477 ADCS7478

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Electrical Characteristics – ADCS7477 (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

IMD

Intermodulation distortion,

second order terms

fa = 103.5 kHz, fb = 113.5 kHz

–78

Intermodulation distortion,

third order terms

fa = 103.5 kHz, fb = 113.5 kHz

–78

FPBW

–3-dB full power bandwidth

5-V supply

MHz

3-V supply

MHz

POWER SUPPLY CHARACTERISTICS

IDD

Normal mode (static)

VDD = 4.75 V to 5.25 V, SCLK On or Off

VDD = 2.7 V to 3.6 V, SCLK On or Off

Normal mode (operational)

VDD = 4.75 V to 5.25 V,

fSAMPLE = 1 MSPS

TA = 25°C

–40°C

≤ TA ≤ 85°C

3.5

VDD = 2.7 V to 3.6 V,

fSAMPLE = 1 MSPS

TA = 25°C

0.6

–40°C

≤ TA ≤ 85°C

1.6

Shutdown mode

VDD = 5 V, SCLK Off

0.5

µA

VDD = 5 V, SCLK On

Power consumption,

normal mode (operational)

VDD = 5 V,

fSAMPLE = 1 MSPS

TA = 25°C

–40°C

≤ TA ≤ 85°C

17.5

VDD = 3 V,

fSAMPLE = 1 MSPS

TA = 25°C

–40°C

≤ TA ≤ 85°C

4.8

Power consumption,

shutdown mode

VDD = 5 V, SCLK Off

2.5

µW

VDD = 3 V, SCLK Off

1.5

ANALOG INPUT CHARACTERISTICS

VIN

Input range

0 to VDD

IDCL

DC leakage current

TA = −40°C to 85°C

±1

µA

CINA

Analog input capacitance

DIGITAL INPUT CHARACTERISTICS

VIH

Input high voltage

TA = −40°C to 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 ≤ 85°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

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