
REV. A
AD7866
–3–
Parameter A Version
1
B Version
1
Unit Test Conditions/Comments
CONVERSION RATE
Conversion Time 16 16 SCLK cycles 800 ns with SCLK = 20 MHz
Track/Hold Acquisition Time
3
300 300 ns max
Throughput Rate 1 1 MSPS max See Serial Interface Section
POWER REQUIREMENTS
V
DD
2.7/5.25 2.7/5.25 V min/max
V
DRIVE
2.7/5.25 2.7/5.25 V min/max
I
DD
7
Digital I/Ps = 0 V or V
DRIVE
Normal Mode (Static) 3.1 3.1 mA max V
DD
= 4.75 V to 5.25 V. Add 0.5 mA
Typical if Using Internal Reference.
2.8 2.8 mA max V
DD
= 2.7 V to 3.6 V. Add 0.35 mA
Typical if Using Internal Reference.
Operational, f
S
= 1 MSPS 4.8 4.8 mA max V
DD
= 4.75 V to 5.25 V. Add 0.5 mA
Typical if Using Internal Reference.
3.8 3.8 mA max V
DD
= 2.7 V to 3.6 V. Add 0.5 mA
Typical if Using Internal Reference.
Partial Power-Down Mode 1.6 1.6 mA max f
S
= 100 kSPS, f
SCLK
= 20 MHz
Add 0.2 mA Typ if Using Internal
Reference.
Partial Power-Down Mode 560 560 µA max (Static) Add 100 µA Typical if Using
Internal Reference.
Full Power-Down Mode 1 1 µA max SCLK On or Off. T
A
= –40C to +85C
22 µA max SCLK On or Off. 85C < T
A
≤ 125C
Power Dissipation
7
Normal Mode (Operational) 24 24 mW max V
DD
= 5 V
11.4 11.4 mW max V
DD
= 3 V
Partial Power-Down (Static) 2.8 2.8 mW max V
DD
= 5 V. SCLK On or Off.
1.68 1.68 mW max V
DD
= 3 V. SCLK On or Off.
Full Power-Down (Static) 5 5 µW max V
DD
= 5 V. SCLK On or Off.
33 µW max V
DD
= 3 V. SCLK On or Off.
NOTES
1
Temperature ranges as follows: A, B Versions: –40°C to +125°C.
2
See Terminology section.
3
Sample tested @ 25°C to ensure compliance.
4
External reference range that may be applied at V
REF
, D
CAP
A, or D
CAP
B.
5
Relates to pins V
REF
, D
CAP
A, or D
CAP
B.
6
See Reference section for D
CAP
A, D
CAP
B output impedances.
7
See Power vs. Throughput Rate section.
Specifications subject to change without notice.
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