Datasheet AD7911, AD7921 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | 2-Channel, 2.35 V to 5.25 V, 250 kSPS, 12-Bit A/D Converter |
| Páginas / Página | 28 / 9 — AD7911/AD7921. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter Rating. ESD … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 355 Kb |
| Idioma del documento | Inglés |
AD7911/AD7921. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter Rating. ESD CAUTION
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AD7911/AD7921 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 4.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress VDD to GND −0.3 V to +7 V rating only and functional operation of the device at these or Analog Input Voltage to GND −0.3 V to VDD + 0.3 V any other conditions above those indicated in the operational Digital Input Voltage to GND −0.3 V to +7 V section of this specification is not implied. Exposure to absolute Digital Output Voltage to GND −0.3 V to VDD + 0.3 V maximum rating conditions for extended periods may affect Input Current to Any Pin except Supplies1 ±10 mA device reliability. Operating Temperature Range Commercial (A Grade) −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSOT Package θJA Thermal Impedance 207°C/W MSOP Package θJA Thermal Impedance 205.9°C/W θJC Thermal Impedance 43.74°C/W Lead Temperature Soldering Reflow (10 s to 30 s) 235 (0/+5)°C ESD 2 kV 1 Transient currents of up to 100 mA do not cause SCR latch-up.
ESD 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 this product 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. Rev. A | Page 9 of 28 Document Outline REVISION HISTORY SPECIFICATIONS AD7911 SPECIFICATIONS AD7921 SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAMS TIMING EXAMPLES Timing Example 1 Timing Example 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT DIGITAL INPUTS DIN INPUT DOUT OUTPUT MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7911/AD7921 to TMS320C541 Interface AD7911/AD7921 to ADSP-218x AD7911/AD7921 to DSP563xx Interface APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE
AD7911/AD7921 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 4.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress VDD to GND −0.3 V to +7 V rating only and functional operation of the device at these or Analog Input Voltage to GND −0.3 V to VDD + 0.3 V any other conditions above those indicated in the operational Digital Input Voltage to GND −0.3 V to +7 V section of this specification is not implied. Exposure to absolute Digital Output Voltage to GND −0.3 V to VDD + 0.3 V maximum rating conditions for extended periods may affect Input Current to Any Pin except Supplies1 ±10 mA device reliability. Operating Temperature Range Commercial (A Grade) −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSOT Package θJA Thermal Impedance 207°C/W MSOP Package θJA Thermal Impedance 205.9°C/W θJC Thermal Impedance 43.74°C/W Lead Temperature Soldering Reflow (10 s to 30 s) 235 (0/+5)°C ESD 2 kV 1 Transient currents of up to 100 mA do not cause SCR latch-up.
ESD 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 this product 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. Rev. A | Page 9 of 28 Document Outline REVISION HISTORY SPECIFICATIONS AD7911 SPECIFICATIONS AD7921 SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAMS TIMING EXAMPLES Timing Example 1 Timing Example 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT DIGITAL INPUTS DIN INPUT DOUT OUTPUT MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7911/AD7921 to TMS320C541 Interface AD7911/AD7921 to ADSP-218x AD7911/AD7921 to DSP563xx Interface APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE