Datasheet AD7357 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC |
| Seiten / Seite | 25 / 4 — Data Sheet. AD7357. SPECIFICATIONS. Table 2. AD7357B/AD7357Y. AD7357WY. … |
| Revision | E |
| Dateiformat / Größe | PDF / 701 Kb |
| Dokumentensprache | Englisch |
Data Sheet. AD7357. SPECIFICATIONS. Table 2. AD7357B/AD7357Y. AD7357WY. Test Conditions/. Parameter. Min. Typ Max. Unit. Comments
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Data Sheet AD7357 SPECIFICATIONS
V 1 DD = 2.5 ± 10% V, VDRIVE = 2.25 V to 3.6 V, internal reference = 2.048 V, fSCLK = 80 MHz, fSAMPLE = 4.2 MSPS, TA = TMIN to TMAX , unless otherwise noted.
Table 2. AD7357B/AD7357Y AD7357WY Test Conditions/ Parameter Min Typ Max Min Typ Max Unit Comments
DYNAMIC PERFORMANCE fIN = 500 kHz sine wave Signal-to-Noise Ratio (SNR) 74.5 76.5 74.5 76.5 dB 74 dB −40°C to +25°C only Signal-to-Noise and Distortion 74 76 74 76 dB (SINAD)2 73.5 dB −40°C to +25°C only Total Harmonic Distortion (THD)2 −83 −80 −83 −80 dB −79 −40°C to +25°C only Spurious Free Dynamic Range −85 −82 −85 −82 dB (SFDR) −81 dB −40°C to +25°C only Intermodulation Distortion (IMD)2 fa = 1 MHz + 50 kHz, fb = 1 MHz − 50 kHz Second-Order Terms −86 −86 dB Third-Order Terms −79 −79 dB ADC to ADC Isolation2 −100 −100 dB fIN = 1 MHz, fNOISE = 100 kHz to 2.5 MHz CMRR2 −100 −100 dB fNOISE = 100 kHz to 2.5 MHz SAMPLE-AND-HOLD Aperture Delay 3.5 3.5 ns Aperture Delay Match 40 40 ps Aperture Jitter 16 16 ps Full Power Bandwidth At 3 dB 110 110 MHz At 0.1 dB 77 77 MHz At 0.1 dB DC ACCURACY Resolution 14 14 Bits Integral Nonlinearity (INL)2 ±2 ±3 ±2 ±3 LSB Differential Nonlinearity (DNL)2 ±0.5 ±0.99 ±0.5 ±0.99 LSB Guaranteed no missed codes to 14 bits Positive Full-Scale Error2 ±20 ±20 LSB Positive Full-Scale Error Match2 ±20 ±20 LSB Midscale Error2 0/35 0/38 LSB Midscale Error Match2 ±12 ±15 LSB Negative Full-Scale Error2 ±20 ±20 LSB Negative Full-Scale Error Match2 ±20 ±20 LSB ANALOG INPUT Fully Differential Input Range VCM ± VCM ± V VCM = common-mode (VIN+ and VIN−) VREF/2 VREF/2 voltage; VIN+ and VIN− must remain within GND and VDD Common-Mode Voltage Range 0.5 1.6 0.5 1.6 V The voltage around which VIN+ and VIN− are centered DC Leakage Current ±0.5 ±5 ±0.5 ±5 μA Input Capacitance 32 32 pF When in track mode 8 8 pF When in hold mode Rev. E | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT STRUCTURE ANALOG INPUTS DRIVING DIFFERENTIAL INPUTS Differential Amplifier Operational Amplifier Pair VOLTAGE REFERENCE ADC TRANSFER FUNCTION MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE APPLICATION SUGGESTIONS GROUNDING AND LAYOUT EVALUATING THE AD7357 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS
Data Sheet AD7357 SPECIFICATIONS
V 1 DD = 2.5 ± 10% V, VDRIVE = 2.25 V to 3.6 V, internal reference = 2.048 V, fSCLK = 80 MHz, fSAMPLE = 4.2 MSPS, TA = TMIN to TMAX , unless otherwise noted.
Table 2. AD7357B/AD7357Y AD7357WY Test Conditions/ Parameter Min Typ Max Min Typ Max Unit Comments
DYNAMIC PERFORMANCE fIN = 500 kHz sine wave Signal-to-Noise Ratio (SNR) 74.5 76.5 74.5 76.5 dB 74 dB −40°C to +25°C only Signal-to-Noise and Distortion 74 76 74 76 dB (SINAD)2 73.5 dB −40°C to +25°C only Total Harmonic Distortion (THD)2 −83 −80 −83 −80 dB −79 −40°C to +25°C only Spurious Free Dynamic Range −85 −82 −85 −82 dB (SFDR) −81 dB −40°C to +25°C only Intermodulation Distortion (IMD)2 fa = 1 MHz + 50 kHz, fb = 1 MHz − 50 kHz Second-Order Terms −86 −86 dB Third-Order Terms −79 −79 dB ADC to ADC Isolation2 −100 −100 dB fIN = 1 MHz, fNOISE = 100 kHz to 2.5 MHz CMRR2 −100 −100 dB fNOISE = 100 kHz to 2.5 MHz SAMPLE-AND-HOLD Aperture Delay 3.5 3.5 ns Aperture Delay Match 40 40 ps Aperture Jitter 16 16 ps Full Power Bandwidth At 3 dB 110 110 MHz At 0.1 dB 77 77 MHz At 0.1 dB DC ACCURACY Resolution 14 14 Bits Integral Nonlinearity (INL)2 ±2 ±3 ±2 ±3 LSB Differential Nonlinearity (DNL)2 ±0.5 ±0.99 ±0.5 ±0.99 LSB Guaranteed no missed codes to 14 bits Positive Full-Scale Error2 ±20 ±20 LSB Positive Full-Scale Error Match2 ±20 ±20 LSB Midscale Error2 0/35 0/38 LSB Midscale Error Match2 ±12 ±15 LSB Negative Full-Scale Error2 ±20 ±20 LSB Negative Full-Scale Error Match2 ±20 ±20 LSB ANALOG INPUT Fully Differential Input Range VCM ± VCM ± V VCM = common-mode (VIN+ and VIN−) VREF/2 VREF/2 voltage; VIN+ and VIN− must remain within GND and VDD Common-Mode Voltage Range 0.5 1.6 0.5 1.6 V The voltage around which VIN+ and VIN− are centered DC Leakage Current ±0.5 ±5 ±0.5 ±5 μA Input Capacitance 32 32 pF When in track mode 8 8 pF When in hold mode Rev. E | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT STRUCTURE ANALOG INPUTS DRIVING DIFFERENTIAL INPUTS Differential Amplifier Operational Amplifier Pair VOLTAGE REFERENCE ADC TRANSFER FUNCTION MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE APPLICATION SUGGESTIONS GROUNDING AND LAYOUT EVALUATING THE AD7357 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS