AD7908(RevA) Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

AD7908
(Rev.:RevA)

8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP

Analog Devices 

AD7908/AD7918/AD7928

Parameter

CONVERSION RATE

Conversion Time

Track-and-Hold Acquisition Time

Throughput Rate

POWER REQUIREMENTS

AVDD

VDRIVE

IDD4

Normal Mode (Static)

Normal Mode (Operational)

Using Auto Shutdown Mode

Full Shutdown Mode

Power Dissipation4

Normal Mode (Operational)

Auto Shutdown Mode (Static)

Full Shutdown Mode

NOTES

1Temperature ranges as follows: B Version: –40°C to +85°C.

2See Terminology section.

3Sample tested @ 25°C to ensure compliance.

4See Power vs. Throughput Rate section.

Specifications subject to change without notice.

B Version1

800

300

300

1

2.7/5.25

2.7/5.25

600

2.7

2

960

0.5

0.5

13.5

6

2.5

1.5

2.5

1.5

Unit

Test Conditions/Comments

ns max

ns max

ns max

MSPS max

16 SCLK Cycles with SCLK at 20 MHz

Sine Wave Input

Full-Scale Step Input

See Serial Interface Section

V min/max

V min/max

µA typ

mA max

mA max

µA typ

µA max

µA max

mW max

mW max

µW max

µW max

µW max

µW max

Digital I/Ps = 0 V or VDRIVE

AVDD = 2.7 V to 5.25 V, SCLK On or Off

AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz

AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz

fSAMPLE = 250 kSPS

(Static)

SCLK On or Off (20 nA typ)

AVDD = 5 V, fSCLK = 20 MHz

AVDD = 3 V, fSCLK = 20 MHz

AVDD = 5 V

AVDD = 3 V

AVDD = 5 V

AVDD = 3 V

REV. A

–7–

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