ADCS7477AIMFE datasheet(3/30 Pages) TI1

3 / 30 page

ADCS7476, ADCS7477, ADCS7478

www.ti.com

SNAS192F – APRIL 2003 – REVISED MARCH 2013

Operating Ratings

Operating Temperature Range

TMIN = −40°C ≤ TA ≤ TMAX = +125°C

VDD Supply Voltage

+2.7V to +5.25V

Digital Input Pins Voltage Range (1)

+2.7V to +5.25V

(1)

Independent of supply voltage.

Package Thermal Resistance

Package

θJA

6-Lead SOT-23

265°C / W

6-Lead WSON

78°C / W

ADCS7476/ADCS7477/ADCS7478 Specifications

(1)

ADCS7476 Converter Electrical Characteristics

The following specifications apply for VDD = +2.7V to 5.25V, fSCLK = 20 MHz, fSAMPLE = 1 MSPS unless otherwise noted.

Boldface limits apply for TA = −40°C to +85°C: all other limits TA = 25°C, unless otherwise noted.

Symbol

Parameter

Conditions

Typical

Limits

Units

STATIC CONVERTER CHARACTERISTICS

VDD = 2.7V to 3.6V,

Resolution with No Missing Codes

Bits

−40°C ≤ TA ≤ 125°C

VDD = 2.7V to 3.6V,

±0.4

±1

LSB (max)

−40°C ≤ TA ≤ 85°C

INL

Integral Non-Linearity

VDD = 2.7V to 3.6V,

LSB (max)

TA = 125°C

-1.1

LSB (min)

VDD = 2.7V to 3.6V,

+0.5

LSB (max)

−40°C ≤ TA ≤ 85°C

-0.3

-0.9

LSB (min)

DNL

Differential Non-Linearity

VDD = 2.7V to 3.6V,

±1

LSB (max)

TA = 125°C

VDD = 2.7V to 3.6V,

VOFF

Offset Error

±0.1

±1.2

LSB (max)

−40°C ≤ TA ≤ 125°C

VDD = 2.7V to 3.6V,

Gain Error

±0.2

±1.2

LSB (max)

−40°C ≤ TA ≤ 125°C

DYNAMIC CONVERTER CHARACTERISTICS

SINAD

Signal-to-Noise Plus Distortion Ratio

fIN = 100 kHz, −40°C ≤ TA ≤ 125°C

dB (min)

fIN = 100 kHz, −40°C ≤ TA ≤ 85°C

72.5

70.8

dB (min)

SNR

Signal-to-Noise Ratio

fIN = 100 kHz, TA = 125°C

70.6

dB (min)

THD

Total Harmonic Distortion

fIN = 100 kHz

-80

SFDR

Spurious-Free Dynamic Range

fIN = 100 kHz

Intermodulation Distortion, Second Order

fa = 103.5 kHz, fb = 113.5 kHz

-78

Terms

IMD

Intermodulation Distortion, Third Order

fa = 103.5 kHz, fb = 113.5 kHz

-78

Terms

+5V Supply

MHz

FPBW

-3 dB Full Power Bandwidth

+3V Supply

MHz

POWER SUPPLY CHARACTERISTICS

2.7

V (min)

VDD

Supply Voltage

−40°C ≤ TA ≤ 125°C

5.25

V (max)

(1)

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

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