AD7710 Просмотр технического описания (PDF) - Analog Devices
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AD7710 Datasheet PDF : 32 Pages
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AD7710–SPECIFICATIONS
Parameter
A, S Versionsl Unit
Conditions/Comments
POWER REQUIREMENTS
Power Supply Voltages
AVDD Voltage16
DVDD Voltage17
AVDD-VSS Voltage
Power Supply Currents
AVDD Current
DVDD Current
VSS Current
Power Supply Rejection18
Positive Supply (AVDD and DVDD)
Negative Supply (VSS)
Power Dissipation
Normal Mode
Standby (Power-Down) Mode
5 to 10
5
10.5
4
4.5
1.5
See Note 19
90
45
52.5
15
V nom
V nom
V max
mA max
mA max
mA max
dB typ
dB typ
mW max
mW max
mW max
± 5% for Specified Performance
± 5% for Specified Performance
For Specified Performance
VSS = –5 V
Rejection w.r.t. AGND; Assumes VBIAS Is Fixed
AVDD = DVDD = 5 V, VSS = 0 V; Typically 25 mW
AVDD = DVDD = 5 V, VSS = –5 V; Typically 30 mW
AVDD = DVDD = 5 V, VSS = 0 V or –5 V; Typically 7 mW
NOTES
16The AD7710 is specified with a 10 MHz clock for AVDD voltages of +5 V ± 5%. It is specified with an 8 MHz clock for AVDD voltages greater than 5.25 V and less
than 10.5 V. Operating with AVDD voltages in the range 5.25 V to 10.5 V is only guaranteed over the 0°C to 70°C temperature range.
17The ± 5% tolerance on the DVDD input is allowed provided that DVDD does not exceed AVDD by more than 0.3 V.
18Measured at dc and applies in the selected passband. PSRR at 50 Hz will exceed 120 dB with filter notches of 10 Hz, 25 Hz, or 50 Hz. PSRR at 60 Hz will exceed
120 dB with filter notches of 10 Hz, 30 Hz or 60 Hz.
19PSRR depends on gain: Gain of 1: 70 dB typ; Gain of 2: 75 dB typ; Gain of 4: 80 dB typ; Gains of 8 to 128: 85 dB typ. These numbers can be improved (to 95 dB
typ) by deriving the VBIAS voltage (via Zener diode or reference) from the AVDD supply.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS*
(TA = 25°C, unless otherwise noted.)
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AVDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
DVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
VSS to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
VSS to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
Analog Input Voltage to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . VSS – 0.3 V to AVDD + 0.3 V
Reference Input Voltage to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . VSS – 0.3 V to AVDD + 0.3 V
REF OUT to AGND . . . . . . . . . . . . . . . . . . . . –0.3 V to AVDD
Digital Input Voltage to DGND . . . . . –0.3 V to AVDD + 0.3 V
Digital Output Voltage to DGND . . . . –0.3 V to DVDD + 0.3 V
Operating Temperature Range
Commercial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . . 300°C
Power Dissipation (Any Package) to +75°C . . . . . . . . 450 mW
Derates Above +75°C . . . . . . . . . . . . . . . . . . . . . . . . 6 mW/°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 the specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
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 AD7710 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
–4–
REV. G
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