Datasheet AD7492 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 1MSPS, 4mW Internal Ref & Clk, 12-Bit Parallel ADC |
| 页数 / 页 | 25 / 4 — AD7492. SPECIFICATIONS AD7492-5. Table 1. Parameter A. Version1. B … |
| 修订版 | A |
| 文件格式/大小 | PDF / 377 Kb |
| 文件语言 | 英语 |
AD7492. SPECIFICATIONS AD7492-5. Table 1. Parameter A. Version1. B Version1. Unit. Test Conditions/Comments
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AD7492 SPECIFICATIONS AD7492-5
VDD = 4.75 V to 5.25 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1. Parameter A Version1 B Version1 Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fS = 1.25 MSPS Signal-to-Noise and Distortion (SINAD) 69 69 dB typ fIN = 500 kHz sine wave 68 68 dB min fIN = 100 kHz sine wave Signal-to-Noise Ratio (SNR) 70 70 dB typ fIN = 500 kHz sine wave 68 68 dB min fIN = 100 kHz sine wave Total Harmonic Distortion (THD) −83 −83 dB typ fIN = 500 kHz sine wave −87 −87 dB typ fIN = 100 kHz sine wave −75 −75 dB max fIN = 100 kHz sine wave Peak Harmonic or Spurious-Free −83 −83 dB typ fIN = 500 kHz sine wave Dynamic Noise (SFDR) −90 −90 dB typ fIN = 100 kHz sine wave −76 −76 dB max fIN = 100 kHz sine wave Intermodulation Distortion (IMD) Second Order Terms −82 −82 dB typ fIN = 500 kHz sine wave −90 −90 dB typ fIN = 100 kHz sine wave Third Order Terms −71 −71 dB typ fIN = 500 kHz sine wave −88 −88 dB typ fIN = 100 kHz sine wave Aperture Delay 5 5 ns typ Aperture Jitter 15 15 ps typ Full Power Bandwidth 10 10 MHz typ DC ACCURACY fS = 1.25 MSPS Resolution 12 12 Bits Integral Nonlinearity ±1.5 ±1.25 LSB max Differential Nonlinearity +1.5/–0.9 +1.5/−0.9 LSB max Guaranteed no missed codes to 12 bits (A and B versions) Offset Error ±9 ±9 LSB max Gain Error ±2.5 ±2.5 LSB max ANALOG INPUT Input Voltage Ranges 0 to 2.5 0 to 2.5 V DC Leakage Current ±1 ±1 μA max Input Capacitance 33 33 pF typ REFERENCE OUTPUT REF OUT Output Voltage Range 2.5 2.5 V ±1.5% for specified performance LOGIC INPUTS Input High Voltage, V 2 INH VDRIVE × 0.7 VDRIVE × 0.7 V min VDD = 5 V ± 5% Input Low Voltage, V 2 INL VDRIVE × 0.3 VDRIVE × 0.3 V max VDD = 5 V ± 5% Input Current, IIN ±1 ±1 μA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, C 3 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDRIVE − 0.2 VDRIVE − 0.2 V min ISOURCE = 200 μA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 200 μA Floating-State Leakage Current ±10 ±10 μA max Floating-State Output Capacitance 10 10 pF max Output Coding Straight (natural) Straight (natural) binary binary Rev. A | Page 3 of 24 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7492-5 AD7492/AD7492-4 TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PEFORMANCE CHARACTERISTICS TERMINOLOGY CIRCUIT DESCRIPTION CONVERTER OPERATION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION AC ACQUISITION TIME DC ACQUISITION TIME ANALOG INPUT PARALLEL INTERFACE OPERATING MODES POWER-UP GROUNDING AND LAYOUT POWER SUPPLIES MICROPROCESSOR INTERFACING OUTLINE DIMENSIONS ORDERING GUIDE
AD7492 SPECIFICATIONS AD7492-5
VDD = 4.75 V to 5.25 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1. Parameter A Version1 B Version1 Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fS = 1.25 MSPS Signal-to-Noise and Distortion (SINAD) 69 69 dB typ fIN = 500 kHz sine wave 68 68 dB min fIN = 100 kHz sine wave Signal-to-Noise Ratio (SNR) 70 70 dB typ fIN = 500 kHz sine wave 68 68 dB min fIN = 100 kHz sine wave Total Harmonic Distortion (THD) −83 −83 dB typ fIN = 500 kHz sine wave −87 −87 dB typ fIN = 100 kHz sine wave −75 −75 dB max fIN = 100 kHz sine wave Peak Harmonic or Spurious-Free −83 −83 dB typ fIN = 500 kHz sine wave Dynamic Noise (SFDR) −90 −90 dB typ fIN = 100 kHz sine wave −76 −76 dB max fIN = 100 kHz sine wave Intermodulation Distortion (IMD) Second Order Terms −82 −82 dB typ fIN = 500 kHz sine wave −90 −90 dB typ fIN = 100 kHz sine wave Third Order Terms −71 −71 dB typ fIN = 500 kHz sine wave −88 −88 dB typ fIN = 100 kHz sine wave Aperture Delay 5 5 ns typ Aperture Jitter 15 15 ps typ Full Power Bandwidth 10 10 MHz typ DC ACCURACY fS = 1.25 MSPS Resolution 12 12 Bits Integral Nonlinearity ±1.5 ±1.25 LSB max Differential Nonlinearity +1.5/–0.9 +1.5/−0.9 LSB max Guaranteed no missed codes to 12 bits (A and B versions) Offset Error ±9 ±9 LSB max Gain Error ±2.5 ±2.5 LSB max ANALOG INPUT Input Voltage Ranges 0 to 2.5 0 to 2.5 V DC Leakage Current ±1 ±1 μA max Input Capacitance 33 33 pF typ REFERENCE OUTPUT REF OUT Output Voltage Range 2.5 2.5 V ±1.5% for specified performance LOGIC INPUTS Input High Voltage, V 2 INH VDRIVE × 0.7 VDRIVE × 0.7 V min VDD = 5 V ± 5% Input Low Voltage, V 2 INL VDRIVE × 0.3 VDRIVE × 0.3 V max VDD = 5 V ± 5% Input Current, IIN ±1 ±1 μA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, C 3 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDRIVE − 0.2 VDRIVE − 0.2 V min ISOURCE = 200 μA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 200 μA Floating-State Leakage Current ±10 ±10 μA max Floating-State Output Capacitance 10 10 pF max Output Coding Straight (natural) Straight (natural) binary binary Rev. A | Page 3 of 24 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7492-5 AD7492/AD7492-4 TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PEFORMANCE CHARACTERISTICS TERMINOLOGY CIRCUIT DESCRIPTION CONVERTER OPERATION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION AC ACQUISITION TIME DC ACQUISITION TIME ANALOG INPUT PARALLEL INTERFACE OPERATING MODES POWER-UP GROUNDING AND LAYOUT POWER SUPPLIES MICROPROCESSOR INTERFACING OUTLINE DIMENSIONS ORDERING GUIDE