AD7898 Analog Devices, AD7898 Datasheet - Page 4

• Manufacturer Part Number: AD7898
• Description: 5V, 12-Bit, Serial 220 kSPS ADC in a 8-Lead Package
• Manufacturer: Analog Devices

Specifications of AD7898

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 220kSPS
• Interface: Ser
• Analog Input Type: SE-Bip
• Ain Range: Bip (Vref),Bip (Vref) x 4,Bip 10V,Bip 2.5V
• Adc Architecture: SAR
• Pkg Type: SOIC

ABSOLUTE MAXIMUM RATINGS*
(T
V
Analog Input Voltage to GND
Reference Input Voltage to GND . . . . –0.3 V to V
Digital Input Voltage to GND . . . . . . . –0.3 V to V
Digital Output Voltage to GND . . . . . –0.3 V to V
Operating Temperature Range
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . 450 mW
ESD
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
AD7898
Model
AD7898AR-10
AD7898AR-10REEL
AD7898AR-10REEL7
AD7898ARZ-10
AD7898ARZ-10REEL
AD7898ARZ-10REEL7
AD7898AR-3
AD7898AR-3REEL
AD7898AR-3REEL7
EVAL-AD7898CB
EVAL-CONTROL BRD2
NOTES
1
2
3
4
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 AD7898 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD pre-
cautions are recommended to avoid performance degradation or loss of functionality.
Z = Pb-Free part.
This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
Linearity Error refers to integral linearity error.
R = SOIC.
nent damage to the device. This is a stress rating; 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.
DD
A
AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 17 V
AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 10 V
Commercial (A, B Versions) . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
θ
Lead Temperature, Soldering
AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kV
AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV
JA
= 25°C unless otherwise noted)
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 170°C/W
3
3
3
4
–40°C to +85°C
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
DD
DD
DD
ORDERING GUIDE
+ 0.3 V
+ 0.3 V
+ 0.3 V
–4–
Linearity Error
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
± 1 LSB
Figure 1. Load Circuit for Digital Output Timing
Specifications
OUTPUT
1
PIN
TO
REF IN
PIN CONFIGURATION
SCLK
GND
50pF
V
IN
C
L
1
2
3
4
(Not to Scale)
200 A
200 A
TOP VIEW
AD7898
SNR
71 dB
71 dB
71 dB
71 dB
71 dB
71 dB
71 dB
71 dB
71 dB
WARNING!
I
I
OL
OH
8
7
6
5
V
CS / CONVST
V
SDATA
DD
DRIVE
ESD SENSITIVE DEVICE
Package Option
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
1.6V
REV. A
2