Datasheet AD9235 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 12-Bit, 20/40/65 MSPS, 3 V Analog-to-Digital Converter |
| Seiten / Seite | 41 / 6 — Data Sheet. AD9235. N+1. N+2. N+8. N–1. N+3. ANALOG. INPUT. N+7. N+4. … |
| Revision | D |
| Dateiformat / Größe | PDF / 847 Kb |
| Dokumentensprache | Englisch |
Data Sheet. AD9235. N+1. N+2. N+8. N–1. N+3. ANALOG. INPUT. N+7. N+4. N+5. N+6. CLK. DATA. N–9. N–8. N–7. N–6. N–5. N–4. N–3. N–2. OUT. tPD = 6.0ns MAX. 2.0ns MIN
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Data Sheet AD9235 N+1 N N+2 N+8 N–1 N+3 ANALOG tA INPUT N+7 N+4 N+5 N+6 CLK DATA N–9 N–8 N–7 N–6 N–5 N–4 N–3 N–2 N–1 N OUT tPD = 6.0ns MAX 2.0ns MIN
02461-002 Figure 2. Timing Diagram
AC SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, maximum sample rate, 2 V p-p differential input, AIN = –0.5 dBFS, 1.0 V internal reference, TMIN to TMAX, unless otherwise noted.
Table 4. AD9235BRU/BCP-20 AD9235BRU/BCP-40 AD9235BRU/BCP-65 Parameter Temp Test Level Min Typ Max Min Typ Max Min Typ Max Unit
SIGNAL-TO-NOISE RATIO fINPUT = 2.4 MHz 25°C V 70.8 70.6 70.5 dBc fINPUT = 9.7 MHz Full IV 70.0 70.4 dBc 25°C I 70.6 dBc fINPUT = 19.6 MHz Full IV 69.9 70.3 dBc 25°C I 70.4 dBc fINPUT = 32.5 MHz Full IV 68.7 69.7 dBc 25°C I 70.1 dBc fINPUT = 100 MHz 25°C V 68.7 68.5 68.3 dBc SIGNAL-TO-NOISE RATIO AND DISTORTION fINPUT = 2.4 MHz 25°C V 70.6 70.5 70.4 dBc fINPUT = 9.7 MHz Full IV 69.9 70.3 dBc 25°C I 70.5 dBc fINPUT = 19.6 MHz Full IV 69.7 70.2 dBc 25°C I 70.3 dBc fINPUT = 32.5 MHz Full IV 68.3 69.5 dBc 25°C I 69.9 dBc fINPUT = 100 MHz 25°C V 68.6 68.3 67.8 dBc TOTAL HARMONIC DISTORTION fINPUT = 2.4 MHz 25°C V –88.0 –89.0 –87.5 dBc fINPUT = 9.7 MHz Full IV –86.0 –79.0 dBc 25°C I –87.4 dBc fINPUT = 19.6 MHz Full IV –85.5 –79.0 dBc 25°C I –86.0 dBc fINPUT = 32.5 MHz Full IV –81.8 –74.0 dBc 25°C I –82.0 dBc fINPUT = 100 MHz 25°C V –84.0 –82.5 –78.0 dBc WORST HARMONIC (SECOND OR THIRD) fINPUT = 9.7 MHz Full IV –90.0 –80.0 dBc fINPUT = 19.6 MHz Full IV –90.0 –80.0 dBc fINPUT = 32.5 MHz Full IV –83.5 –74.0 dBc Rev. D | Page 5 of 40 Document Outline Specifications DC Specifications Digital Specifications Switching Specifications AC Specifications Absolute Maximum Ratings Explanation of Test Levels ESD Caution Pin Configurations and Function Descriptions Definitions of Specifications Equivalent Circuits Typical Performance Characteristics Applying the AD9235 Theory of Operation Analog Input Differential Input Configurations Single-Ended Input Configuration Clock Input Considerations Power Dissipation and Standby Mode Digital Outputs Timing Voltage Reference Internal Reference Connection External Reference Operation Operational Mode Selection TSSOP Evaluation Board LFCSP Evaluation Board Outline Dimensions Ordering Guide
02461-002 Figure 2. Timing Diagram
AC SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, maximum sample rate, 2 V p-p differential input, AIN = –0.5 dBFS, 1.0 V internal reference, TMIN to TMAX, unless otherwise noted.
Table 4. AD9235BRU/BCP-20 AD9235BRU/BCP-40 AD9235BRU/BCP-65 Parameter Temp Test Level Min Typ Max Min Typ Max Min Typ Max Unit
SIGNAL-TO-NOISE RATIO fINPUT = 2.4 MHz 25°C V 70.8 70.6 70.5 dBc fINPUT = 9.7 MHz Full IV 70.0 70.4 dBc 25°C I 70.6 dBc fINPUT = 19.6 MHz Full IV 69.9 70.3 dBc 25°C I 70.4 dBc fINPUT = 32.5 MHz Full IV 68.7 69.7 dBc 25°C I 70.1 dBc fINPUT = 100 MHz 25°C V 68.7 68.5 68.3 dBc SIGNAL-TO-NOISE RATIO AND DISTORTION fINPUT = 2.4 MHz 25°C V 70.6 70.5 70.4 dBc fINPUT = 9.7 MHz Full IV 69.9 70.3 dBc 25°C I 70.5 dBc fINPUT = 19.6 MHz Full IV 69.7 70.2 dBc 25°C I 70.3 dBc fINPUT = 32.5 MHz Full IV 68.3 69.5 dBc 25°C I 69.9 dBc fINPUT = 100 MHz 25°C V 68.6 68.3 67.8 dBc TOTAL HARMONIC DISTORTION fINPUT = 2.4 MHz 25°C V –88.0 –89.0 –87.5 dBc fINPUT = 9.7 MHz Full IV –86.0 –79.0 dBc 25°C I –87.4 dBc fINPUT = 19.6 MHz Full IV –85.5 –79.0 dBc 25°C I –86.0 dBc fINPUT = 32.5 MHz Full IV –81.8 –74.0 dBc 25°C I –82.0 dBc fINPUT = 100 MHz 25°C V –84.0 –82.5 –78.0 dBc WORST HARMONIC (SECOND OR THIRD) fINPUT = 9.7 MHz Full IV –90.0 –80.0 dBc fINPUT = 19.6 MHz Full IV –90.0 –80.0 dBc fINPUT = 32.5 MHz Full IV –83.5 –74.0 dBc Rev. D | Page 5 of 40 Document Outline Specifications DC Specifications Digital Specifications Switching Specifications AC Specifications Absolute Maximum Ratings Explanation of Test Levels ESD Caution Pin Configurations and Function Descriptions Definitions of Specifications Equivalent Circuits Typical Performance Characteristics Applying the AD9235 Theory of Operation Analog Input Differential Input Configurations Single-Ended Input Configuration Clock Input Considerations Power Dissipation and Standby Mode Digital Outputs Timing Voltage Reference Internal Reference Connection External Reference Operation Operational Mode Selection TSSOP Evaluation Board LFCSP Evaluation Board Outline Dimensions Ordering Guide