ZHCSCA6B April   2014  – October 2020 ADS4245-EP

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics:
    6. 6.6  Electrical Characteristics: General
    7. 6.7  Digital Characteristics
    8. 6.8  Timing Characteristics: LVDS And CMOS Modes
    9. 6.9  Typical Characteristics:
    10. 6.10 Typical Characteristics: General
    11. 6.11 Typical Characteristics: Contour
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Digital Functions
      2. 7.4.2 Gain For SFDR/SNR Trade-Off
      3. 7.4.3 Offset Correction
      4. 7.4.4 Power-Down
        1. 7.4.4.1 Global Power-Down
        2. 7.4.4.2 Channel Standby
        3. 7.4.4.3 Input Clock Stop
      5. 7.4.5 Digital Output Information
        1. 7.4.5.1 Output Interface
        2. 7.4.5.2 DDR LVDS Outputs
        3. 7.4.5.3 LVDS Buffer
        4. 7.4.5.4 Parallel CMOS Interface
        5. 7.4.5.5 CMOS Interface Power Dissipation
        6. 7.4.5.6 Multiplexed Mode Of Operation
        7. 7.4.5.7 Output Data Format
      6. 7.4.6 Device Configuration
        1. 7.4.6.1 Parallel Configuration Only
        2. 7.4.6.2 Serial Interface Configuration Only
        3. 7.4.6.3 Using Both Serial Interface And Parallel Controls
        4. 7.4.6.4 Parallel Configuration Details
        5. 7.4.6.5 Serial Interface Details
          1. 7.4.6.5.1 Register Initialization
          2. 7.4.6.5.2 Serial Register Readout
    5. 7.5 Serial Register Map
    6. 7.6 Description Of Serial Registers
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Clock Input
    2. 8.2 Typical Applications
      1. 8.2.1 Analog Input
        1. 8.2.1.1 Design Requirements for Drive Circuits
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Grounding
      2. 10.1.2 Supply Decoupling
      3. 10.1.3 Exposed Pad
      4. 10.1.4 Routing Analog Inputs
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Support
        1. 11.1.1.1 Definition Of Specifications
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary

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订购信息

Typical Characteristics:

At TA = +25°C, AVDD = 1.8V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock, 1.5VPP differential clock amplitude, 50% clock duty cycle, –1dBFS differential analog input, High-Performance Mode disabled, 0dB gain, DDR LVDS output interface, and 32k point FFT, unless otherwise noted.

GUID-959BDC89-EDB2-4DA9-909F-1CF0A42E71DC-low.gif
SFDR = 89.7dBc SINAD = 73dBFS SNR = 73.1dBFS
THD = 88.4dBc
Figure 6-6 FFT For 20MHz Input Signal
GUID-16BC6887-D639-4E6A-9E3F-977EA1CD5DF7-low.gif
SFDR = 73.4dBc SINAD = 67.7dBFS SNR = 69.2dBFS
THD = 72.3dBc
Figure 6-8 FFT For 300MHz Input Signal
GUID-C8FA46F3-9BED-4B8E-928F-0ECAAED1FAA4-low.gif
Each Tone at −7dBFS Amplitude fIN1 = 46MHz
Two−Tone IMD=96.9dBFS SFDR=105.3dBFS fIN2 = 50MHz
Figure 6-10 FFT For Two-Tone Input Signal
GUID-3855B895-B205-423A-8185-951D2CBF2BA4-low.gifFigure 6-12 SNR vs Input Frequency
GUID-135E29F4-29B3-4365-ADC6-ABA6208CF388-low.gifFigure 6-14 SFDR vs Gain And Input Frequency
GUID-2CE66FD0-1017-41FC-AC24-65DCDBFB62B2-low.gif
Input Frequency = 40MHz
Figure 6-16 Performance vs Input Amplitude
GUID-366B7812-53B9-49C1-9AD3-48C49773FBD1-low.gif
Input Frequency = 40MHz
Figure 6-18 Performance vs Input Common-Mode Voltage
GUID-42AB5A1D-D44C-4AC7-9F96-50C7B2C166E9-low.gif
Input Frequency = 150MHz
Figure 6-20 SFDR vs Temperature And AVDD Supply
GUID-425BCB63-F201-4B92-A87F-690C64FA3C13-low.gif
Input Frequency = 150MHz
Figure 6-22 Performance vs DRVDD Supply Voltage
GUID-55F3DB00-8F26-454D-AA6D-0C9C17FA5946-low.gif
Input Frequency = 150MHz
Figure 6-24 Performance vs Input Clock Amplitude
GUID-7EF3F670-4DF8-4770-819D-D047F3FE76E6-low.gif
Input Frequency = 20MHz
Figure 6-26 Integrated Nonlinearity
GUID-2134D836-FCCC-4D20-9A02-C5D8907117CB-low.gif
SFDR = 86.7dBc SINAD = 71.2dBFS SNR = 71.4dBFS
THD = 83.8dBc
Figure 6-7 FFT For 170MHz Input Signal
GUID-5771E83D-0F87-4425-8EB2-CA17A3E76B71-low.gif
Each Tone at −7dBFS Amplitude fIN1 = 185MHz
Two−Tone IMD = 94dBFS SFDR = 92.8dBFS fIN2 = 190MHz
Figure 6-9 FFT For Two-Tone Input Signal
GUID-8B071058-3044-42FF-873D-6BC969F8EA37-low.gifFigure 6-11 SFDR vs Input Frequency
GUID-D2FE525B-545A-4052-B519-F65E7B8A4AC6-low.gifFigure 6-13 SNR vs Input Frequency (CMOS)
GUID-5E4E4623-D51A-4D23-9EA0-771FA483423D-low.gifFigure 6-15 SINAD vs Gain And Input Frequency
GUID-D2F5BA8F-18B0-4C14-B3E8-DF6FD3C946CE-low.gif
Input Frequency = 150MHz
Figure 6-17 Performance vs Input Amplitude
GUID-B456B60F-3BE2-4F73-B404-005EAC55BF21-low.gif
Input Frequency = 150MHz
Figure 6-19 Performance vs Input Common-Mode Voltage
GUID-41E9F812-14A6-416B-A853-8AEE1B940FF6-low.gif
Input Frequency = 150MHz
Figure 6-21 SNR vs Temperature And AVDD Supply
GUID-5CACDC3E-5420-438B-B80A-B7E282B48E2C-low.gif
Input Frequency = 40MHz
Figure 6-23 Performance vs Input Clock Amplitude
GUID-36CA7C32-F30A-4B57-A94A-64956021065A-low.gif
Input Frequency = 10MHz
Figure 6-25 Performance vs Input Clock Duty Cycle
GUID-7994CFE4-0EF4-4D66-963E-F796748B41EA-low.gif
RMS Noise = 1.1LSB
Figure 6-27 Output Noise Histogram (With Inputs Shorted To VCM)