Datasheet AD7711A (Analog Devices) - 4

AD7711A–SPECIFICATIONS Parameter A, S Versions Unit Conditions/Comments
POWER REQUIREMENTS Power Supply Voltages AVDD Voltage16 5 to 10 V nom ± 5% for Specified Performance DVDD Voltage17 5 V nom ± 5% for Specified Performance AVDD–VSS Voltage 10.5 V max For Specified Performance Power Supply Currents AVDD Current 4 mA max DVDD Current 4.5 mA max VSS Current 1.5 mA max VSS = –5 V Power Supply Rejection18 Rejection w.r.t. AGND; Assumes VBIAS Is Fixed Positive Supply (AVDD and DVDD)19 dB typ Negative Supply (VSS) 90 dB typ Power Dissipation Normal Mode 45 mW max AVDD = DVDD = +5 V, VSS = 0 V; Typically 25 mW Normal Mode 52.5 mW max AVDD = DVDD = +5 V, VSS = –5 V; Typically 30 mW Standby (Power-Down) Mode 15 mW max AVDD = DVDD = +5 V, VSS = 0 V or –5 V; Typically 7 mW NOTES 16The AD7711A 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 08C to 708C 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
*
ORDERING GUIDE
(TA = 25rC, unless otherwise noted.)
Model Temperature Range Package Options*
AVDD to DVDD . –0.3 V to +12 V AVDD to VSS . –0.3 V to +12 V AD7711AAR –40rC to +85rC RW-24 AVDD to AGND . –0.3 V to +12 V AD7711ASQ –55rC to +125rC Q-24 AVDD to DGND . –0.3 V to +12 V *R = SOIC, Q = CERDIP. 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) . –40rC to +85rC Extended (S Version) . –55rC to +125rC Storage Temperature Range . –65rC to +150rC Lead Temperature (Soldering, 10 secs) . +300rC Power Dissipation (Any Package) to 75rC . 450 mW Derates Above 75rC . 6 mW/rC *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.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
WARNING!
accumulate on the human body and test equipment and can discharge without detection. Although the AD7711A features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
ESD SENSITIVE DEVICE
precautions are recommended to avoid performance degradation or loss of functionality. –4– REV. D