AD7298-1 datasheet(4/24 Pages) AD

Il numero della parte	AD7298-1

Spiegazioni elettronici	8-Channel, 1 MSPS, 10-Bit SAR ADC

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Produttore elettronici	AD [Analog Devices]

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AD7298-1

Rev. A | Page 4 of 24

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

LOGIC OUTPUTS

Output High Voltage, VOH

VDRIVE − 0.3

V

VDRIVE < 1.8

VDRIVE − 0.2

V

VDRIVE ≥ 1.8

Output Low Voltage, VOL

0.4

V

Floating State Leakage Current

±0.01

±1

μA

Floating State Output Capacitance3

8

pF

CONVERSION RATE

Conversion Time

1

t2 + (16 × tSCLK)

μs

For VIN0 to VIN7 with one cycle latency

Track-and-Hold Acquisition Time2, 3

100

ns

Full-scale step input

Throughput Rate

1

MSPS

fSCLK = 20 MHz; for analog voltage

conversions, one cycle latency

POWER REQUIREMENTS

Digital inputs = 0 V or VDRIVE

VDD

2.8

3

3.6

V

VDRIVE

1.65

3

3.6

V

ITOTAL5

VDD = 3.6 V, VDRIVE = 3.6 V

Normal Mode (Operational)

5.8

6.4

mA

Normal Mode (Static)

4.1

4.6

mA

Partial Power-Down Mode

2.7

3.3

mA

Full Power-Down Mode

1

1.6

μA

TA = −40°C to +25°C

10

μA

TA = −40°C to +125°C

Power Dissipation6

Normal Mode (Operational)

17.4

19.2

mW

VDD = 3 V, VDRIVE = 3 V

23

mW

Normal Mode (Static)

14.8

16.6

mW

Partial Power-Down Mode

9.8

11.9

mW

Full Power-Down Mode

3.6

5.8

μW

TA = −40°C to +25°C

36

μW

TA = −40°C to +125°C

1 All specifications expressed in decibels are referred to full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.

2 See the Terminology section.

3 Sample tested during initial release to ensure compliance.

4 Refers to the VREF pin specified for 25°C.

5 ITOTAL is the total current flowing in VDD and VDRIVE.

6 Power dissipation is specified with VDD = VDRIVE = 3.6 V, unless otherwise noted.

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