AD7866 Analog Devices, AD7866 Datasheet - Page 3

• Manufacturer Part Number: AD7866
• Description: Dual 1MSPS, 12-Bit, 2-Channel SAR ADC with Serial Interface
• Manufacturer: Analog Devices

Specifications of AD7866

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref),Uni (Vref) x 2,Uni 2.5V,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: SOP

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