AD7888 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
AD7888 Datasheet PDF : 18 Pages
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Parameter
A Version1 B Version1
Unit
Test Condition/Comment
POWER REQUIREMENTS
VDD
IDD
Normal Mode5 (Static)
Normal Mode (Operational)
Using Standby Mode
Using Shutdown Mode
Standby Mode6
Shutdown Mode6
Normal-Mode Power Dissipation
Shutdown Power Dissipation
Standby Power Dissipation
2.7/5.25
700
700
450
80
12
2
1
3.5
2.1
10
3
1
600
2.7/5.25
700
700
450
80
12
2
1
3.5
2.1
10
3
1
600
V min/max
µA max
µA typ
µA typ
µA typ
µA typ
µA max
µA max
µA max
mW max
mW max
µW max
µW max
mW max
µW max
fSAMPLE = 125 kSPS
fSAMPLE = 50 kSPS
fSAMPLE = 10 kSPS
fSAMPLE = 1 kSPS
VDD = 2.7 V to 5.25 V
VDD = 4.75 V to 5.25 V (0.5 µA typ)
VDD = 2.7 V to 3.6 V
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
NOTES
1Temperature ranges as follows: A Version: –40°C to +105°C; B Version: –40°C to +105°C.
2See Terminology.
3SNR calculation includes distortion and noise components.
4Sample tested @ 25°C to ensure compliance.
5All digital inputs @ GND except CS @ VDD. No load on the digital outputs. Analog inputs @ GND.
6SCLK @ GND when SCLK off. All digital inputs @ GND except for CS @ VDD. No load on the digital outputs. Analog inputs @ GND.
Specifications subject to change without notice.
AD7888
ABSOLUTE MAXIMUM RATINGS1
(TA = 25°C unless otherwise noted)
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to AGND . . . . . –0.3 V to VDD + 0.3 V
Digital Input Voltage to AGND . . . . . . –0.3 V to VDD + 0.3 V
Digital Output Voltage to AGND . . . . –0.3 V to VDD + 0.3 V
REFIN/REFOUT to AGND . . . . . . . . –0.3 V to VDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . . ± 10 mA
Operating Temperature Range
Commercial
(A Version) . . . . . . . . . . . . . . . . . . . . . . –40°C to +105°C
(B Version) . . . . . . . . . . . . . . . . . . . . . . °C to +105°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOIC, TSSOP Package, Power Dissipation . . . . . . . . 450 mW
θJA Thermal Impedance . . . . . . . . . . . . 124.9°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150.4°C/W (TSSOP)
θJC Thermal Impedance . . . . . . . . . . . . . 42.9°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.6°C/W (TSSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kV
NOTES
1Stresses 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.
2Transient currents of up to 100 mA will not cause SCR latch-up.
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 AD7888 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. C
–3–
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