AD7927 데이터 시트보기 (PDF) - Unspecified

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AD7927

8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP

Unspecified 

AD7927

Parameter

B Version1

CONVERSION RATE

Conversion Time

800

Track-and-Hold Acquisition Time

300

300

Throughput Rate

200

POWER REQUIREMENTS

AVDD

VDRIVE

IDD4

During Conversion

2.7/5.25

2.7/5.25

2.7

2

Normal Mode (Static)

600

Normal Mode (Operational) fSAMPLE = 200 kSPS 1.5

1.2

Using Auto Shutdown Mode fSAMPLE = 200 kSPS 900

650

Auto Shutdown (Static)

0.5

Full Shutdown Mode

0.5

Power Dissipation4

Normal Mode (Operational)

7.5

3.6

Auto Shutdown (Static)

2.5

1.5

Full Shutdown Mode

2.5

1.5

NOTES

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

2See Terminology section.

3Sample tested @ 25∞C to ensure compliance.

4See Power versus Throughput Rate section.

Specifications subject to change without notice.

Unit

Test Conditions/Comments

ns max

ns max

ns max

kSPS 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

mA max

mA max

mA typ

mA max

mA max

mA typ

mA typ

mA max

mA max

Digital I/Ps = 0 V or VDRIVE

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

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

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

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

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

SCLK On or Off (20 nA typ)

SCLK On or Off (20 nA typ)

mW max

mW max

mW max

mW max

mW max

mW max

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. 0

–3–

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