EVAL-AD7712EB View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-AD7712EB' PDF : 28 Pages View PDF
AD7712–SPECIFICATIONS
Parameter
A, S Versions1 Unit
Conditions/Comments
POWER REQUIREMENTS
Power Supply Voltages
AVDD Voltage18
DVDD Voltage19
AVDD – VSS Voltage
Power Supply Currents
AVDD Current
DVDD Current
VSS Current
Power Supply Rejection20
Positive Supply (AVDD and DVDD)21
Negative Supply (VSS)
Power Dissipation
Normal Mode
Normal Mode
Standby (Power-Down) Mode22
+5 to +10
+5
+10.5
4
4.5
1.5
90
45
52.5
200
V nom
V nom
V max
± 5% for Specified Performance
± 5% for Specified Performance
For Specified Performance
mA max
mA max
mA max
dB typ
dB typ
VSS = –5 V
Rejection w.r.t. AGND; Assumes VBIAS Is Fixed
mW max AVDD = DVDD = +5 V, VSS = 0 V; Typically 25 mW
mW max AVDD = DVDD = +5 V, VSS = –5 V; Typically 30 mW
µW max AVDD = DVDD = +5 V, VSS = 0 V or –5 V; Typically 100 µW
NOTES
18The AD7712 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 guaranteed only over the 0ЊC to 70ЊC temperature range.
19The ± 5% tolerance on the DVDD input is allowed provided that DVDD does not exceed AVDD by more than 0.3 V.
20Measured 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.
21PSRR 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.
22Using the hardware STANDBY pin. Standby power dissipation using the software standby bit (PD) of the Control Register is 8 mW typ.
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
AIN1 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
*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 listed in the operational
sections of the specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
ORDERING GUIDE
Model
Temperature Range Package Options*
AD7712AN
–40°C to +85°C
AD7712AR
–40°C to +85°C
AD7712AR-REEL –40°C to +85°C
AD7712AR-REEL7 –40°C to +85°C
AD7712AQ
–40°C to +85°C
AD7712SQ
–55°C to +125°C
EVAL-AD7712EB Evaluation Board
N-24
RW-24
RW-24
RW-24
Q-24
Q-24
*N = PDIP, Q = CERDIP; RW = SOIC.
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
AD7712 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.
–4–
REV. F
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