Datasheet AD7674 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 18-Bit, 2.5 LSB INL, 800 kSPS, SAR ADC |
| 页数 / 页 | 29 / 8 — Data Sheet. AD7674. ABSOLUTE MAXIMUM RATINGS Table 5. AD7674 Ab. solute … |
| 修订版 | B |
| 文件格式/大小 | PDF / 595 Kb |
| 文件语言 | 英语 |
Data Sheet. AD7674. ABSOLUTE MAXIMUM RATINGS Table 5. AD7674 Ab. solute Maximum Ratings. 1.6mA. IOL. Parameter. Rating. TO OUTPUT. 1.4V
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Data Sheet AD7674 ABSOLUTE MAXIMUM RATINGS Table 5. AD7674 Ab solute Maximum Ratings 1.6mA IOL Parameter Rating
Analog Inputs
TO OUTPUT 1.4V
IN+1, IN−1, REF, REFBUFIN, REFGND AGND − 0.3 V to
PIN CL
to AGND AVDD + 0.3 V
60pF1
Ground Voltage Differences
500
µ
A IOH
AGND, DGND, OGND ±0.3 V
NOTE
Supply Voltages
1 IN SERIAL INTERFACE MODES,THE SYNC, SCLK, AND SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
AVDD, DVDD, OVDD −0.3 V to +7 V
CL OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
AVDD to DVDD, AVDD to OVDD ±7 V 03083–0–002 DVDD to OVDD −0.3 V to +7 V Figure 2. Load Circuit for Digital Interface Timing, SDOUT, SYNC, SCLK Digital Inputs −0.3 V to DVDD + 0.3 V Outputs, CL = 10 pF Internal Power Dissipation2 700 mW Internal Power Dissipation3 2.5 W
2V
Junction Temperature 150°C
0.8V
Storage Temperature Range −65°C to +150°C
tDELAY tDELAY
Lead Temperature Range 300°C
2V 2V
(Soldering 10 sec)
0.8V 0.8V
03083–0–003 1See the Analog Inputs section. Figure 3. Voltage Reference Levels for Timing 2Specification is for device in free air: 48-Lead LQFP: θJA = 91°C/W, θJC = 30°C/W. 3 Specification is for device in free air: 48-Lead LFCSP: θJA = 26°C/W.
ESD CAUTION
Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. B | Page 7 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION Modes of Operation Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Power Supply POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read during Conversion MICROPROCESSOR INTERFACING Serial Peripheral Interface (SPI) APPLICATIONS INFORMATION LAYOUT EVALUATING AD7674 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES
Data Sheet AD7674 ABSOLUTE MAXIMUM RATINGS Table 5. AD7674 Ab solute Maximum Ratings 1.6mA IOL Parameter Rating
Analog Inputs
TO OUTPUT 1.4V
IN+1, IN−1, REF, REFBUFIN, REFGND AGND − 0.3 V to
PIN CL
to AGND AVDD + 0.3 V
60pF1
Ground Voltage Differences
500
µ
A IOH
AGND, DGND, OGND ±0.3 V
NOTE
Supply Voltages
1 IN SERIAL INTERFACE MODES,THE SYNC, SCLK, AND SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
AVDD, DVDD, OVDD −0.3 V to +7 V
CL OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
AVDD to DVDD, AVDD to OVDD ±7 V 03083–0–002 DVDD to OVDD −0.3 V to +7 V Figure 2. Load Circuit for Digital Interface Timing, SDOUT, SYNC, SCLK Digital Inputs −0.3 V to DVDD + 0.3 V Outputs, CL = 10 pF Internal Power Dissipation2 700 mW Internal Power Dissipation3 2.5 W
2V
Junction Temperature 150°C
0.8V
Storage Temperature Range −65°C to +150°C
tDELAY tDELAY
Lead Temperature Range 300°C
2V 2V
(Soldering 10 sec)
0.8V 0.8V
03083–0–003 1See the Analog Inputs section. Figure 3. Voltage Reference Levels for Timing 2Specification is for device in free air: 48-Lead LQFP: θJA = 91°C/W, θJC = 30°C/W. 3 Specification is for device in free air: 48-Lead LFCSP: θJA = 26°C/W.
ESD CAUTION
Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. B | Page 7 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION Modes of Operation Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Power Supply POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read during Conversion MICROPROCESSOR INTERFACING Serial Peripheral Interface (SPI) APPLICATIONS INFORMATION LAYOUT EVALUATING AD7674 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES