Datasheet

AD7731
REV.A‐5‐
ABSOLUTE MAXIMUM RATINGS*
(TA = +25°C unless otherwise noted)
AVDD to AGND .................................................. –0.3 V to +7 V
AV
DD to DGND .................................................. –0.3 V to +7 V
DV
DD to AGND .................................................. –0.3 V to +7 V
DV
DD to DGND .................................................. –0.3 V to +7 V
AGND to DGND ................................................ –5 V to +0.3 V
AV
DD to DVDD ....................................................... –2 V to +5 V
Analog Input Voltage to AGND ........... –0.3 V to AV
DD + 0.3 V
Reference Input Voltage to AGND ....... –0.3 V to AV
DD + 0.3 V
AIN/REF IN Current (Indefinite) .................................... 30 mA
Digital Input Voltage to DGND ............ –0.3 V to DV
DD + 0.3 V
Digital Output Voltage to DGND ......... –0.3 V to DV
DD + 0.3 V
Output Voltage (D0, D1) to DGND ...... –0.3 V to AV
DD + 0.3 V
Operating Temperature Range
Industrial (B Version) ....................................... –40°C to +85°C
Storage Temperature Range ............................ –65°C to +150°C
Junction Temperature ..................................................... +150°C
Plastic DIP Package, Power Dissipation ........................ 450 mW
θ
JA Thermal Impedance ............................................... 105°C/W
Lead Temperature (Soldering, 10 sec) ............................ +260°C
TSSOP Package, Power Dissipation .............................. 450 mW
θ
JA Thermal Impedance ............................................... 128°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ...................................................... +215°C
Infrared (15 sec) ............................................................. +220°C
SOIC Package, Power Dissipation ................................ 450 mW
θ
JA Thermal Impedance ................................................. 75°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ...................................................... +215°C
Infrared (15 sec) ............................................................ +220°C
*Stresses above those listed under Absolute Maximum Ratings may cause
permanent 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.
ORDERING GUIDE
Model (Z = RoHS) Temperature Range Package Description Package Option RoHS Compliant
AD7731BN −40°C to +85°C 24-Lead PDIP N-24-1 No
AD7731BNZ −40°C to +85°C 24-Lead PDIP N-24-1 Yes
AD7731BR −40°C to +85°C 24-Lead SOIC_W RW-24 No
AD7731BR-REEL −40°C to +85°C 24-Lead SOIC_W RW-24 No
AD7731BR-REEL7 −40°C to +85°C 24-Lead SOIC_W RW-24 No
AD7731BRZ −40°C to +85°C 24-Lead SOIC_W RW-24 Yes
AD7731BRZ-REEL −40°C to +85°C 24-Lead SOIC_W RW-24 Yes
AD7731BRZ-REEL7 −40°C to +85°C 24-Lead SOIC_W RW-24 Yes
AD7731BRU −40°C to +85°C 24-Lead TSSOP RU-24 No
AD7731BRU-REEL −40°C to +85°C 24-Lead TSSOP RU-24 No
AD7731BRU-REEL7 −40°C to +85°C 24-Lead TSSOP RU-24 No
AD7731BRUZ −40°C to +85°C 24-Lead TSSOP RU-24 Yes
AD7731BRUZ-REEL −40°C to +85°C 24-Lead TSSOP RU-24 Yes
AD7731BRUZ-REEL7 −40°C to +85°C 24-Lead TSSOP RU-24 Yes
EVAL-AD7731EBZ Evaluation Board Yes
TO OUTPUT
PIN
50pF
I
SINK
(800µA AT DV
DD
= +5V
100µA AT DV
DD
= +3V)
+1.6V
I
SOURCE
(200µA AT DV
DD
= +5V
100µA AT DV
DD
= +3V)
Figure 1. Load Circuit for Access Time and Bus Relinquish Time
ESD 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 this product 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