AD7912 Просмотр технического описания (PDF) - Analog Devices

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AD7912

2-Channel, 2.35 V to 5.25 V, 1 MSPS, 10-/12-Bit ADCs

Analog Devices 

AD7912/AD7922

Parameter

CONVERSION RATE

Conversion Time

Track-and-Hold Acquisition Time2

Throughput Rate

POWER REQUIREMENTS

VDD

IDD

Normal Mode (Static)

Normal Mode (Operational)

Full Power-Down Mode (Static)

Full Power-Down Mode (Dynamic)

Power Dissipation4

Normal Mode (Operational)

Full Power-Down

A Grade1

777

290

1

2.35/5.25

3

1.5

4

2

1

0.48

0.26

20

6

5

1 Operational from VDD = 2 V, with VIH = 1.9 V minimum and VIL = 0.1 V maximum.

2 See the Terminology section.

3 Guaranteed by characterization.

4 See the Power vs. Throughput Rate section.

Unit

Test Conditions/Comments

ns max

ns max

MSPS max

14 SCLK cycles with SCLK at 18 MHz

V min/max

mA typ

mA typ

mA max

mA max

µA max

mA typ

mA typ

Digital I/Ps = 0 V or VDD

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

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

VDD = 4.75 V to 5.25 V, fSAMPLE = 1 MSPS

VDD = 2.35 V to 3.6 V, fSAMPLE = 1 MSPS

SCLK on or off, typically 50 nA

VDD = 5 V, fSCLK = 18 MHz, fSAMPLE = 100 kSPS

VDD = 3 V, fSCLK = 18 MHz, fSAMPLE = 100 kSPS

mW max

mW max

µW max

VDD = 5 V, fSAMPLE = 1 MSPS

VDD = 3 V, fSAMPLE = 1 MSPS

VDD = 5 V

Rev. 0 | Page 4 of 32

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