AD7314 Datasheet, PDF (3/8 Pages) Analog Devices – Low-Voltage, 10-Bit Digital Temperature Sensor in 8-Lead uSOIC

AD7314
CE
SCLK
SDO
SDI
t₁
t₅
t₂
t₄
t₃
t₆
Figure 1. Timing Diagram
t₇
t₈
ABSOLUTE MAXIMUM RATINGS¹
V_DD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Digital Input Voltage to GND . . . . . . . –0.3 V to V_DD + 0.3 V
Digital Output Voltage to GND . . . . . –0.3 V to V_DD + 0.3 V
Operating Temperature Range . . . . . . . . . . . –35°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOT-23, Power Dissipation . . . . . . . . . . . . . . . . . . . . 450 mW
θ_JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 240°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
µSOIC Package, Power Dissipation . . . . . . . . . . . . . . 450 mW
θ_JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 206°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
Latch-Up for ID Pin² . . . . . . . . . . . . . . . . . . . . . . . . ≤ –70 mA
Latch-Up for All Other Pins . . . . . . . . . . . . . . . . . ≥ –110 mA
NOTES
1_{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 indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2_{Correct usage of the ID pin will prevent any latch-up occurring. We recommend}
that in an application the ID pin should be either tied via a 100 kΩ resistor to V_DD
or left open circuit. If the application complies with our recommendation, the ID
pin will never see –70 mA.
200␮A
I_OL
TO
OUTPUT
PIN
C_L
50pF
1.6V
200␮A
I_OH
Figure 2. Load Circuit for Data Access Time and Bus
Relinquish Time
Model
AD7314ARM
Temperature
Range
–35°C to +85°C
ORDERING GUIDE
Temperature
Error
± 2°C
Package
Description
8-Lead µSOIC
Package
Option
RM-8
Branding
Information
CKA
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 AD7314 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.
WARNING!
ESD SENSITIVE DEVICE
REV. 0
–3–