AD7866 Analog Devices, AD7866 Datasheet - Page 5

• 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

ABSOLUTE MAXIMUM RATINGS
(T
AV
DV
V
V
AV
AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Analog Input Voltage to AGND . . . . . –0.3 V to AV
Digital Input Voltage to DGND . . . . . . . . . . . . –0.3 V to +7 V
V
Digital Output Voltage to DGND . . . –0.3 V to V
Input Current to Any Pin Except Supplies
Operating Temperature Range
Commercial (A, B Versions) . . . . . . . . . . . . . –40 C to +125 C
Model
AD7866ARU
AD7866BRU
EVAL-AD7866CB
EVAL-CONTROL BRD2
NOTES
1
2
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD7866 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
REV. A
This can be used as a standalone evaluation board or in conjunction with the evaluation board controller for evaluation/demonstration purposes.
This evaluation board controller is a complete unit, allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB design ators.
To order a complete evaluation kit, the particular ADC evaluation board, e.g., EVAL-AD7866CB, the EVAL-CONTROL BRD2, and a 12 V transformer must be
ordered. See relevant Evaluation Board Technical note for more information.
DRIVE
DRIVE
REF
A
= 25
DD
DD
DD
to AGND . . . . . . . . . . . . . . . . . . –0.3 V to AV
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DV
to DGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
o
to DGND . . . . . . . . . . . . . . . . –0.3 V to DV
to AGND . . . . . . . . . . . . . . . . –0.3 V to AV
C, unless otherwise noted.)
DD
. . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
1
2
Temperature Range
–40°C to +125°C
–40°C to +125°C
1
2
. . . . . . . . . 10 mA
DRIVE
DD
DD
DD
DD
ORDERING GUIDE
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
Resolution
(Bits)
12
12
–5–
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150 C
TSSOP Package, Power Dissipation . . . . . . . . . . . . . 450 mW
ESD
NOTES
1
2
Lead Temperature, Soldering
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Transient currents of up to 100 mA will not cause SCR latch up.
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 C
JA
JC
Thermal Impedance (TSSOP) . . . . . . . . . . . . . 143 C/W
Thermal Impedance (TSSOP) . . . . . . . . . . . . . . 45 C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 kV
Package Description
Thin Shrink SOC (TSSOP)
Thin Shrink SOC (TSSOP)
Evaluation Board
Controller Board
AD7866
Package
Option
RU-20
RU-20