ADCS7477 datasheet(4/30 Pages) TI1

4 / 30 page

ADCS7476, ADCS7477, ADCS7478

SNAS192F – APRIL 2003 – REVISED MARCH 2013

www.ti.com

ADCS7476/ADCS7477/ADCS7478 Specifications

(1)

ADCS7476 Converter Electrical Characteristics (continued)

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

VDD = +4.75V to +5.25V,

SCLK On or Off

Normal Mode (Static)

VDD = +2.7V to +3.6V,

SCLK On or Off

VDD = +4.75V to +5.25V,

2.0

3.5

mA (max)

IDD

fSAMPLE = 1 MSPS

Normal Mode (Operational)

VDD = +2.7V to +3.6V,

0.6

1.6

mA (max)

fSAMPLE = 1 MSPS

VDD = +5V, SCLK Off

0.5

µA

Shutdown Mode

VDD = +5V, SCLK On

µA

VDD = +5V, fSAMPLE = 1 MSPS

17.5

mW (max)

Power Consumption, Normal Mode

(Operational)

VDD = +3V, fSAMPLE = 1 MSPS

4.8

mW (max)

VDD = +5V, SCLK Off

2.5

µW

Power Consumption, Shutdown Mode

VDD = +3V, SCLK Off

1.5

µW

ANALOG INPUT CHARACTERISTICS

VIN

Input Range

0 to VDD

IDCL

DC Leakage Current

±1

µA (max)

CINA

Analog Input Capacitance

DIGITAL INPUT CHARACTERISTICS

VIH

Input High Voltage

2.4

V (min)

VDD = +5V

0.8

V (max)

VIL

Input Low Voltage

VDD = +3V

0.4

V (max)

IIN

Input Current

VIN = 0V or VDD

±10 nA

±1

µA (max)

CIND

Digital Input Capacitance

pF (max)

DIGITAL OUTPUT CHARACTERISTICS

ISOURCE = 200 µA,

VOH

Output High Voltage

VDD −0.2

V (min)

VDD = +2.7V to +5.25V

VOL

Output Low Voltage

ISINK = 200 µA

0.4

V (max)

IOL

TRI-STATE Leakage Current

±10

µA (max)

COUT

TRI-STATE Output Capacitance

pF (max)

Output Coding

Straight (Natural) Binary

AC ELECTRICAL CHARACTERISTICS

fSCLK

Clock Frequency

−40°C ≤ TA ≤ 125°C

MHz (max)

% (min)

SCLK Duty Cycle

% (max)

tTH

Track/Hold Acquisition Time

400

ns (max)

fRATE

Throughput Rate

See USING THE ADCS7476/77/78

MSPS (max)

tAD

Aperture Delay

tAJ

Aperture Jitter

ADCS7476/ADCS7477/ADCS7478 Specifications

(1) ADCS7477 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

(1)

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

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