AD7866 datasheet(3/20 Pages) AD

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REV. 0

–3–

AD7866

Parameter

A Version

B Version

Unit

Test Conditions/Comments

CONVERSION RATE

Conversion Time

SCLK cycles

800 ns with SCLK = 20 MHz

Track/Hold Acquisition Time

300

ns max

Throughput Rate

MSPS max

See Serial Interface Section

POWER REQUIREMENTS

VDD

2.7/5.25

V min/max

VDRIVE

2.7/5.25

V min/max

IDD

Digital I/Ps = 0 V or VDRIVE

Normal Mode (Static)

3.1

mA max

VDD = 4.75 V to 5.25 V. Add 0.5 mA

Typical if Using Internal Reference

2.8

mA max

VDD = 2.7 V to 3.6 V. Add 0.35 mA

Typical if Using Internal Reference

Operational, fS = 1 MSPS

4.8

mA max

VDD = 4.75 V to 5.25 V. Add 0.5 mA

Typical if Using Internal Reference

3.8

mA max

VDD = 2.7 V to 3.6 V. Add 0.5 mA

Typical if Using Internal Reference

Partial Power-Down Mode

1.6

mA max

fS = 100 kSPS, fSCLK = 20 MHz

Add 0.2 mA Typ if Using Internal Reference

Partial Power-Down Mode

560

µA max

(Static) Add 100

µA Typical if Using Internal

Reference

Full Power-Down Mode

µA max

SCLK On or Off.

Power Dissipation

Normal Mode (Operational)

mW max

VDD = 5 V

11.4

mW max

VDD = 3 V

Partial Power-Down (Static)

2.8

mW max

VDD = 5 V. SCLK On or Off.

1.68

mW max

VDD = 3 V. SCLK On or Off.

Full Power-Down (Static)

µW max

VDD = 5 V. SCLK On or Off.

µW max

VDD = 3 V. SCLK On or Off.

NOTES

1Temperature ranges as follows: A, B Versions: –40

°C to +85°C.

2See Terminology section.

3Sample tested @ 25

°C to ensure compliance.

4External reference range that may be applied at V

REF, DCAPA, or DCAPB.

5Relates to pins V

REF, DCAPA, or DCAPB.

6See Reference section for D

CAPA, DCAPB output impedances.

7See Power Versus Throughput Rate section.

Specifications subject to change without notice.

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