AD7477AARMZ datasheet(7/28 Pages) AD

7 / 28 page

AD7476A/AD7477A/AD7478A

Rev. F | Page 7 of 28

Parameter

A Grade2

Unit

Test Conditions/Comments

LOGIC INPUTS

Input High Voltage, VINH

2.4

V min

1.8

V min

VDD = 2.35 V

Input Low Voltage, VINL

0.8

V max

VDD = 5 V

0.4

V max

VDD = 3 V

Input Current, IIN, SCLK Pin

±0.5

μA max

Typically 10 nA, VIN = 0 V or VDD

Input Current, IIN, CS Pin

±10

nA typ

Input Capacitance, CIN5

pF max

LOGIC OUTPUTS

Output High Voltage, VOH

VDD – 0.2

V min

ISOURCE = 200 μA, VDD = 2.35 V to 5.25 V

Output Low Voltage, VOL

0.4

V max

ISINK = 200 μA

Floating-State Leakage Current

±1

μA max

Floating-State Output Capacitance5

pF max

Output Coding

Straight (Natural) Binary

CONVERSION RATE

Conversion Time

600

ns max

12 SCLK cycles with SCLK at 20 MHz

Track-and-Hold Acquisition Time3

225

ns max

Throughput Rate

1.2

MSPS max

POWER REQUIREMENTS

VDD

2.35/5.25

V min/max

IDD

Digital I/Ps = 0 V or VDD

Normal Mode (Static)

2.5

mA typ

VDD = 4.75 V to 5.25 V, SCLK on or off

1.2

mA typ

VDD = 2.35 V to 3.6 V, SCLK on or off

Normal Mode (Operational)

3.5

mA max

VDD = 4.75 V to 5.25 V

1.7

mA max

VDD = 2.35 V to 3.6 V

Full Power-Down Mode (Static)

μA max

Typically 50 nA

Full Power-Down Mode (Dynamic)

0.6

mA typ

VDD = 5 V, fSAMPLE = 100 kSPS

Power Dissipation6

0.3

mA typ

VDD = 3 V, fSAMPLE = 100 kSPS

Normal Mode (Operational)

17.5

mW max

VDD = 5 V

5.1

mW max

VDD = 3 V

Full Power-Down Mode

μW max

VDD = 5 V

Temperature range is from –40°C to +85°C.

Operational from VDD = 2.0 V, with input high voltage (VINH) 1.8 V minimum.

See the Terminology section.

SC70 values guaranteed by characterization.

Guaranteed by characterization.

See the Power vs. Throughput Rate section.

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