ADCS7477 datasheet(5/33 Pages) TI1

5 / 33 page

ADCS7476, ADCS7477, ADCS7478

www.ti.com

SNAS192G – APRIL 2003 – REVISED MAY 2016

Product Folder Links: ADCS7476 ADCS7477 ADCS7478

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

6.5 Electrical Characteristics – ADCS7476

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

VDD = 2.7 V to 3.6 V, –40°C ≤ TA ≤ 125°C

Bits

INL

Integral non-linearity

VDD = 2.7 V to 3.6 V

TA = 25°C

±0.4

LSB

–40°C

≤ TA ≤ 85°C

±1

VDD = 2.7 V to 3.6 V, TA = 125°C

–1.1

LSB

DNL

Differential non-linearity

VDD = 2.7 V to 3.6 V

TA = 25°C

–0.3

0.5

LSB

–40°C

≤ TA ≤ 85°C

–0.9

VDD = 2.7 V to 3.6 V, TA = 125°C

±1

LSB

VOFF

Offset error

VDD = 2.7 V to 3.6 V

TA = 25°C

±0.1

LSB

−40°C ≤ TA ≤ 125°C

±1.2

Gain error

VDD = 2.7 V to 3.6 V

TA = 25°C

±0.2

LSB

–40°C

≤ TA ≤ 125°C

±1.2

DYNAMIC CONVERTER CHARACTERISTICS

SINAD

Signal-to-noise plus distortion ratio

fIN = 100 kHz

TA = 25°C

–40°C

≤ TA ≤ 125°C

SNR

Signal-to-noise ratio

fIN = 100 kHz

TA = 25°C

72.5

–40°C

≤ TA ≤ 85°C

70.8

fIN = 100 kHz, TA = 125°C

70.6

THD

Total harmonic distortion

fIN = 100 kHz

–80

SFDR

Spurious-free dynamic range

fIN = 100 kHz

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

µA

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

µW

ANALOG INPUT CHARACTERISTICS

VIN

Input range

0 to VDD

IDCL

DC leakage current

–40°C

≤ TA ≤ 85°C

±1

µA

CINA

Analog input capacitance

DIGITAL INPUT CHARACTERISTICS

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