AD7856KR-REEL7 Analog Devices Inc, AD7856KR-REEL7 Datasheet - Page 6

• Manufacturer Part Number: AD7856KR-REEL7
• Description: IC ADC 14BIT 8CH 5V 24-SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD7856KR-REEL7

• Rohs Status: RoHS non-compliant
• Number Of Bits: 14
• Sampling Rate (per Second): 285k
• Data Interface: 8051, QSPI™, Serial, SPI™ µP
• Number Of Converters: 2
• Power Dissipation (max): 89.25mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: 0°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)

AD7856
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 AD7856 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.
ABSOLUTE MAXIMUM RATINGS
(T
AV
DV
AV
Analog Input Voltage to AGND . . . . –0.3 V to AV
Digital Input Voltage to DGND . . . . –0.3 V to DV
Digital Output Voltage to DGND . . . –0.3 V to DV
REF
Input Current to Any Pin Except Supplies
Operating Temperature Range Commercial
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150 C
Plastic DIP Package, Power Dissipation . . . . . . . . . . 450 mW
SOIC, SSOP Package, Power Dissipation . . . . . . . . . 450 mW
Lead Temperature, Soldering
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1 kV
NOTES
1
2
Stresses above those listed under Absolute Maximum Ratings may cause perma-
Transient currents of up to 100 mA will not cause SCR latch-up.
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 condi-
tions for extended periods may affect device reliability.
A
A Version . . . . . . . . . . . . . . . . . . . . . . . . . –40 C to +105 C
K Version . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 C to +105 C
Lead Temperature, (Soldering, 10 secs) . . . . . . . . . +260 C
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . . +215 C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220 C
DD
DD
= +25 C unless otherwise noted)
DD
JA
JC
JA
JC
IN
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 105 C/W
Thermal Impedance . 75 C/W (SOIC) 115 C/W (SSOP)
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 34.7 C/W
Thermal Impedance . . 25 C/W (SOIC) 35 C/W (SSOP)
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DV
/REF
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
OUT
DD
to AGND . . . . . . . . . –0.3 V to AV
. . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
1
2
. . . . . . .
DD
DD
DD
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
10 mA
–6–
Model
AD7856AN
AD7856AR
AD7856KR
AD7856ARS
EVAL-AD7856CB
EVAL-CONTROL BOARD
NOTES
1
2
3
4
Linearity error here refers to integral linearity error.
N = Plastic DIP; R = SOIC; RS = SSOP.
This can be used as a stand-alone evaluation board or in conjunction with the
This board is a complete unit allowing a PC to control and communicate with
EVAL-CONTROL BOARD for evaluation/demonstration purposes.
all Analog Devices evaluation boards ending in the CB designators.
REF
IN
CONVST
/REF
PIN CONFIGURATIONS
3
(DIP, SOIC AND SSOP)
SLEEP
AGND
C
C
BUSY
AV
AIN1
AIN2
AIN3
AIN4
REF1
REF2
ORDERING GUIDE
OUT
DD
10
11
12
1
2
3
4
5
6
7
8
9
(Not to Scale)
TOP VIEW
4
AD7856
Linearity
Error
(LSB)
WARNING!
2 typ
2 typ
2
2 typ
16
15
14
13
24
23
22
21
20
19
18
17
SYNC
SCLK
CLKIN
DIN
DOUT
DGND
DV
CAL
AIN8
AIN7
AIN6
AIN5
1
DD
ESD SENSITIVE DEVICE
Package
Options
N-24
R-24
R-24
RS-24
REV. A
2