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AD7712AQ датащи(PDF) 4 Page - Analog Devices |
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AD7712AQ датащи(HTML) 4 Page - Analog Devices |
4 / 28 page Parameter A, S Versions1 Units Conditions/Comments POWER REQUIREMENTS Power Supply Voltages AVDD Voltage 18 +5 to +10 V nom ±5% for Specified Performance DVDD Voltage 19 +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 Rejection20 Rejection w.r.t. AGND; Assumes VBIAS Is Fixed Positive Supply (AVDD and DVDD) See Note 21 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) Mode22 200 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 AV DD voltages of +5 V ± 5%. It is specified with an 8 MHz clock for AV DD voltages greater than 5.25 V and less than 10.5 V. 19The ±5% tolerance on the DV DD 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. AD7712–SPECIFICATIONS REV. E –4– CAUTION ESD (electrostatic discharge) sensitive device. The digital control inputs are diode protected; however, permanent damage may occur on unconnected devices subject to high energy electro- static fields. Unused devices must be stored in conductive foam or shunts. The protective foam should be discharged to the destination socket before devices are inserted. 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. 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 ORDERING GUIDE Model Temperature Range Package Options* AD7712AN –40 °C to +85°C N-24 AD7712AR –40 °C to +85°C R-24 AD7712AQ –40 °C to +85°CQ-24 AD7712SQ –55 °C to +125°CQ-24 EVAL-AD7712EB Evaluation Board *N = Plastic DIP, Q = Cerdip; R = SOIC. WARNING! ESD SENSITIVE DEVICE |
Аналогичный номер детали - AD7712AQ |
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Аналогичное описание - AD7712AQ |
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