Datasheet AD7981 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | High Temperature, 16-Bit, 600 kSPS PulSAR ADC |
| Seiten / Seite | 26 / 4 — AD7981. Data Sheet. Table 2. Parameter. Test Conditions/Comments. Min. … |
| Revision | B |
| Dateiformat / Größe | PDF / 2.1 Mb |
| Dokumentensprache | Englisch |
AD7981. Data Sheet. Table 2. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit
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AD7981 Data Sheet
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TMIN to TMAX, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range (VREF) 2.4 5.1 V Load Current 600 kSPS, VREF = 5 V 330 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 10 MHz Aperture Delay VDD = 2.5 V 2 ns DIGITAL INPUTS Logic Levels Input Voltage Low (VIL) VIO > 3 V –0.3 0.3 × VIO V VIO ≤ 3 V –0.3 0.1 × VIO V High (VIH) VIO > 3 V 0.7 × VIO VIO + 0.3 V VIO ≤ 3 V 0.9 × VIO VIO + 0.3 µA Input Current Low (IIL) −1 +1 µA High (IIH) −1 +1 µA DIGITAL OUTPUTS Data Format Serial, 16 bits, straight binary Pipeline Delay Conversion results available immediately after completed conversion Output Voltage Low (VOL) ISINK = 500 µA 0.4 V High (VOH) ISOURCE = −500 µA VIO − 0.3 V POWER SUPPLIES VDD 2.375 2.5 2.625 V VIO Specified performance 2.3 5.5 V VIO Range 1.8 5.5 V Standby Current1, 2 VDD and VIO = 2.5 V 0.35 µA Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 10 kSPS 75 µW 600 kSPS (MSOP) 4.65 7 mW 600 kSPS (FLATPACK) 4.65 12 mW VDD Only 600 kSPS 2.25 mW REF Only 600 kSPS 1.5 mW VIO Only 600 kSPS 0.9 mW Energy per Conversion 7.75 nJ/sample TEMPERATURE RANGE Specified Performance3 TMIN to TMAX 10-Lead FLATPACK −55 +210 °C 10-Lead MSOP −55 +175°C °C 1 With all digital inputs forced to VIO or GND as required. 2 During the acquisition phase. 3 Qualified for up to 1000 hours of operation at the maximum temperature rating. Rev. B | Page 4 of 26 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUT DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE \CS MODE, 3-WIRE WITHOUT A BUSY INDICATOR \CS MODE, 3-WIRE WITH A BUSY INDICATOR \CS MODE, 4-WIRE WITHOUT A BUSY INDICATOR \CS MODE, 4-WIRE WITH A BUSY INDICATOR CHAIN MODE WITHOUT A BUSY INDICATOR CHAIN MODE WITH A BUSY INDICATOR APPLICATIONS INFORMATION PRINTED CIRCUIT BOARD (PCB) LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TMIN to TMAX, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range (VREF) 2.4 5.1 V Load Current 600 kSPS, VREF = 5 V 330 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 10 MHz Aperture Delay VDD = 2.5 V 2 ns DIGITAL INPUTS Logic Levels Input Voltage Low (VIL) VIO > 3 V –0.3 0.3 × VIO V VIO ≤ 3 V –0.3 0.1 × VIO V High (VIH) VIO > 3 V 0.7 × VIO VIO + 0.3 V VIO ≤ 3 V 0.9 × VIO VIO + 0.3 µA Input Current Low (IIL) −1 +1 µA High (IIH) −1 +1 µA DIGITAL OUTPUTS Data Format Serial, 16 bits, straight binary Pipeline Delay Conversion results available immediately after completed conversion Output Voltage Low (VOL) ISINK = 500 µA 0.4 V High (VOH) ISOURCE = −500 µA VIO − 0.3 V POWER SUPPLIES VDD 2.375 2.5 2.625 V VIO Specified performance 2.3 5.5 V VIO Range 1.8 5.5 V Standby Current1, 2 VDD and VIO = 2.5 V 0.35 µA Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 10 kSPS 75 µW 600 kSPS (MSOP) 4.65 7 mW 600 kSPS (FLATPACK) 4.65 12 mW VDD Only 600 kSPS 2.25 mW REF Only 600 kSPS 1.5 mW VIO Only 600 kSPS 0.9 mW Energy per Conversion 7.75 nJ/sample TEMPERATURE RANGE Specified Performance3 TMIN to TMAX 10-Lead FLATPACK −55 +210 °C 10-Lead MSOP −55 +175°C °C 1 With all digital inputs forced to VIO or GND as required. 2 During the acquisition phase. 3 Qualified for up to 1000 hours of operation at the maximum temperature rating. Rev. B | Page 4 of 26 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUT DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE \CS MODE, 3-WIRE WITHOUT A BUSY INDICATOR \CS MODE, 3-WIRE WITH A BUSY INDICATOR \CS MODE, 4-WIRE WITHOUT A BUSY INDICATOR \CS MODE, 4-WIRE WITH A BUSY INDICATOR CHAIN MODE WITHOUT A BUSY INDICATOR CHAIN MODE WITH A BUSY INDICATOR APPLICATIONS INFORMATION PRINTED CIRCUIT BOARD (PCB) LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE