Datasheet AD7453 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | Pseudo Differential, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23 |
| Seiten / Seite | 21 / 4 — AD7453. SPECIFICATIONS. Table 1. Parameter. Test Conditions/Comments. A … |
| Revision | B |
| Dateiformat / Größe | PDF / 429 Kb |
| Dokumentensprache | Englisch |
AD7453. SPECIFICATIONS. Table 1. Parameter. Test Conditions/Comments. A Version1. B Version. Unit
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AD7453 SPECIFICATIONS
VDD = 2.7 V to 5.25 V, fSCLK = 10 MHz, fS = 555 kSPS, VREF = 2.5 V, FIN = 100 kHz, TA = TMIN to TMAX, unless otherwise noted
Table 1. Parameter Test Conditions/Comments A Version1 B Version
1
Unit
DYNAMIC PERFORMANCE fIN = 100 kHz Signal to Noise Ratio (SNR)2 VDD = 2.7 V to 5.25 V 70 70 dB min Signal to (Noise + Distortion) (SINAD)2 VDD = 2.7 V to 3.6 V 69 69 dB min VDD = 4.75 V to 5.25 V 70 70 dB min Total Harmonic Distortion (THD)2 VDD = 2.7 V to 3.6 V; –78 dB typ –73 –73 dB max VDD = 4.75 V to 5.25 V; –80 dB typ –75 –75 dB max Peak Harmonic or Spurious Noise2 VDD = 2.7 V to 3.6 V; –80 dB typ –73 –73 dB max VDD = 4.75 V to 5.25 V; –82 dB typ –75 –75 dB max Intermodulation Distortion (IMD)2 fa = 90 kHz; fb = 110 kHz Second-Order Terms –80 –80 dB typ Third-Order Terms –80 –80 dB typ Aperture Delay2 5 5 ns typ Aperture Jitter2 50 50 ps typ Full-Power Bandwidth2, 3 @ –3 dB 20 20 MHz typ @ –0.1 dB 2.5 2.5 MHz typ DC ACCURACY Resolution 12 12 Bits Integral Nonlinearity (INL)2 ±1.5 ±1 LSB max Differential Nonlinearity (DNL)2 Guaranteed no missed codes to 12 bits ±0.95 ±0.95 LSB max Offset Error2 ±3.5 ±3.5 LSB max Gain Error2 ±3 ±3 LSB max ANALOG INPUT Full-Scale Input Span VIN+ – VIN– VREF VREF V Absolute Input Voltage VIN+ VREF VREF V V 4 IN– VDD = 2.7 V to 3.6 V –0.1 to +0.4 –0.1 to +0.4 V VDD = 4.75 V to 5.25 V –0.1 to +1.5 –0.1 to +1.5 V DC Leakage Current ±1 ±1 µA max Input Capacitance When in track/hold 30/10 30/10 pF typ REFERENCE INPUT VREF Input Voltage ± 1% tolerance for specified performance 2.5 5 2.55 V DC Leakage Current ±1 ±1 µA max VREF Input Capacitance When in track/hold 10/30 10/30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min Input Low Voltage, VINL 0.8 0.8 V max Input Current, IIN Typically 10 nA, VIN = 0 V or VDD ±1 ±1 µA max Input Capacitance, CIN 6 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD = 4.75 V to 5.25 V, ISOURCE = 200 µA 2.8 2.8 V min VDD = 2.7 V to 3.6 V, ISOURCE = 200 µA 2.4 2.4 V min Output Low Voltage, VOL ISINK = 200 µA 0.4 0.4 V max Floating-State Leakage Current ±1 ±1 µA max Floating-State Output Capacitance6 10 10 pF max Output Coding Straight (natural) binary Rev. B | Page 3 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7453–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM THE ANALOG INPUT Analog Input Structure DIGITAL INPUTS REFERENCE SERIAL INTERFACE Timing Example 1 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE MICROPROCESSOR AND DSP INTERFACING AD7453 to ADSP-21xx AD7453 to TMS320C5x/C54x AD7453 to DSP56xxx APPLICATION HINTS Grounding and Layout EVALUATING THE AD7453’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE
AD7453 SPECIFICATIONS
VDD = 2.7 V to 5.25 V, fSCLK = 10 MHz, fS = 555 kSPS, VREF = 2.5 V, FIN = 100 kHz, TA = TMIN to TMAX, unless otherwise noted
Table 1. Parameter Test Conditions/Comments A Version1 B Version
1
Unit
DYNAMIC PERFORMANCE fIN = 100 kHz Signal to Noise Ratio (SNR)2 VDD = 2.7 V to 5.25 V 70 70 dB min Signal to (Noise + Distortion) (SINAD)2 VDD = 2.7 V to 3.6 V 69 69 dB min VDD = 4.75 V to 5.25 V 70 70 dB min Total Harmonic Distortion (THD)2 VDD = 2.7 V to 3.6 V; –78 dB typ –73 –73 dB max VDD = 4.75 V to 5.25 V; –80 dB typ –75 –75 dB max Peak Harmonic or Spurious Noise2 VDD = 2.7 V to 3.6 V; –80 dB typ –73 –73 dB max VDD = 4.75 V to 5.25 V; –82 dB typ –75 –75 dB max Intermodulation Distortion (IMD)2 fa = 90 kHz; fb = 110 kHz Second-Order Terms –80 –80 dB typ Third-Order Terms –80 –80 dB typ Aperture Delay2 5 5 ns typ Aperture Jitter2 50 50 ps typ Full-Power Bandwidth2, 3 @ –3 dB 20 20 MHz typ @ –0.1 dB 2.5 2.5 MHz typ DC ACCURACY Resolution 12 12 Bits Integral Nonlinearity (INL)2 ±1.5 ±1 LSB max Differential Nonlinearity (DNL)2 Guaranteed no missed codes to 12 bits ±0.95 ±0.95 LSB max Offset Error2 ±3.5 ±3.5 LSB max Gain Error2 ±3 ±3 LSB max ANALOG INPUT Full-Scale Input Span VIN+ – VIN– VREF VREF V Absolute Input Voltage VIN+ VREF VREF V V 4 IN– VDD = 2.7 V to 3.6 V –0.1 to +0.4 –0.1 to +0.4 V VDD = 4.75 V to 5.25 V –0.1 to +1.5 –0.1 to +1.5 V DC Leakage Current ±1 ±1 µA max Input Capacitance When in track/hold 30/10 30/10 pF typ REFERENCE INPUT VREF Input Voltage ± 1% tolerance for specified performance 2.5 5 2.55 V DC Leakage Current ±1 ±1 µA max VREF Input Capacitance When in track/hold 10/30 10/30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min Input Low Voltage, VINL 0.8 0.8 V max Input Current, IIN Typically 10 nA, VIN = 0 V or VDD ±1 ±1 µA max Input Capacitance, CIN 6 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD = 4.75 V to 5.25 V, ISOURCE = 200 µA 2.8 2.8 V min VDD = 2.7 V to 3.6 V, ISOURCE = 200 µA 2.4 2.4 V min Output Low Voltage, VOL ISINK = 200 µA 0.4 0.4 V max Floating-State Leakage Current ±1 ±1 µA max Floating-State Output Capacitance6 10 10 pF max Output Coding Straight (natural) binary Rev. B | Page 3 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7453–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM THE ANALOG INPUT Analog Input Structure DIGITAL INPUTS REFERENCE SERIAL INTERFACE Timing Example 1 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE MICROPROCESSOR AND DSP INTERFACING AD7453 to ADSP-21xx AD7453 to TMS320C5x/C54x AD7453 to DSP56xxx APPLICATION HINTS Grounding and Layout EVALUATING THE AD7453’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE