SBAS672E July   2014  – June 2022 ADC3221 , ADC3222 , ADC3223 , ADC3224

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
    1.     Device Comparison Table
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions (1)
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: General
    6. 6.6  Electrical Characteristics: ADC3221, ADC3222
    7. 6.7  Electrical Characteristics: ADC3223, ADC3224
    8. 6.8  AC Performance: ADC3221
    9. 6.9  AC Performance: ADC3222
    10. 6.10 AC Performance: ADC3223
    11. 6.11 AC Performance: ADC3224
    12. 6.12 Digital Characteristics
    13. 6.13 Timing Requirements: General
    14. 6.14 Timing Requirements: LVDS Output
    15. 6.15 Typical Characteristics: ADC3221
    16. 6.16 Typical Characteristics: ADC3222
    17. 6.17 Typical Characteristics: ADC3223
    18. 6.18 Typical Characteristics: ADC3224
    19. 6.19 Typical Characteristics: Common
    20. 6.20 Typical Characteristics: Contour
  7. Parameter Measurement Information
    1. 7.1 Timing Diagrams
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Analog Inputs
      2. 8.3.2 Clock Input
        1. 8.3.2.1 Using the SYSREF Input
        2. 8.3.2.2 SNR and Clock Jitter
      3. 8.3.3 Digital Output Interface
        1. 8.3.3.1 One-Wire Interface: 12X Serialization
        2. 8.3.3.2 Two-Wire Interface: 6X Serialization
    4. 8.4 Device Functional Modes
      1. 8.4.1 Input Clock Divider
      2. 8.4.2 Chopper Functionality
      3. 8.4.3 Power-Down Control
        1. 8.4.3.1 Improving Wake-Up Time From Global Power-Down
      4. 8.4.4 Internal Dither Algorithm
    5. 8.5 Programming
      1. 8.5.1 Serial Interface
        1. 8.5.1.1 Register Initialization
          1. 8.5.1.1.1 Serial Register Write
          2. 8.5.1.1.2 Serial Register Readout
      2. 8.5.2 Register Initialization through SPI
    6. 8.6 Register Maps
      1. 8.6.1 Summary of Special Mode Registers
      2. 8.6.2 Serial Register Description
        1. 8.6.2.1  Register 01h
        2. 8.6.2.2  Register 03h
        3. 8.6.2.3  Register 04h
        4. 8.6.2.4  Register 05h
        5. 8.6.2.5  Register 06h
        6. 8.6.2.6  Register 07h
        7. 8.6.2.7  Register 09h
        8. 8.6.2.8  Register 0Ah
        9. 8.6.2.9  Register 0Bh
        10. 8.6.2.10 Register 0Eh
        11. 8.6.2.11 Register 0Fh
        12. 8.6.2.12 Register 13h
        13. 8.6.2.13 Register 15h
        14. 8.6.2.14 Register 25h
        15. 8.6.2.15 Register 27h
        16. 8.6.2.16 Register 41Dh
        17. 8.6.2.17 Register 422h
        18. 8.6.2.18 Register 434h
        19. 8.6.2.19 Register 439h
        20. 8.6.2.20 Register 51Dh
        21. 8.6.2.21 Register 522h
        22. 8.6.2.22 Register 534h
        23. 8.6.2.23 Register 539h
        24. 8.6.2.24 Register 608h
        25. 8.6.2.25 Register 70Ah
  9. Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Driving Circuit Design: Low Input Frequencies
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Driving Circuit Design: Input Frequencies Between 100 MHz to 230 MHz
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
      3. 9.2.3 Driving Circuit Design: Input Frequencies Greater than 230 MHz
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curve
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

AC Performance: ADC3221

At maximum sampling rate, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input. Typical values are specified at an ambient temperature of 25°C. Minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C (unless otherwise noted).
PARAMETERTEST CONDITIONSADC3221 (fS = 25 MSPS)UNIT
DITHER ONDITHER OFF
MINTYPMAXMINTYPMAX
DYNAMIC AC CHARACTERISTICS
SNRSignal-to-noise ratio
(from 1-MHz offset)
fIN = 10 MHz70.971.2dBFS
fIN = 20 MHz68.570.871.1
fIN = 70 MHz70.670.9
fIN = 100 MHz70.370.6
fIN = 170 MHz69.769.9
fIN = 230 MHz68.869
Signal-to-noise ratio
(full Nyquist band)
fIN = 10 MHz70.270.6dBFS
fIN = 20 MHz70.270.5
fIN = 70 MHz69.970.2
fIN = 100 MHz69.669.9
fIN = 170 MHz69.269.3
fIN = 230 MHz68.268.4
NSD(1)Noise spectral density
(averaged across Nyquist zone)
fIN = 10 MHz–141.9–142.2dBFS/Hz
fIN = 20 MHz–141.8–139.5–142.1
fIN = 70 MHz–141.6–141.9
fIN = 100 MHz–141.3–141.6
fIN = 170 MHz–140.7–140.9
fIN = 230 MHz–139.8–140.0
SINAD(1)Signal-to-noise and distortion ratiofIN = 10 MHz70.971.1dBFS
fIN = 20 MHz68.170.871
fIN = 70 MHz70.670.7
fIN = 100 MHz70.270.3
fIN = 170 MHz69.669.6
fIN = 230 MHz68.568.5
ENOB(1)Effective number of bitsfIN = 10 MHz11.511.5Bits
fIN = 20 MHz1111.511.5
fIN = 70 MHz11.411.5
fIN = 100 MHz11.411.4
fIN = 170 MHz11.311.3
fIN = 230 MHz11.111.1
SFDRSpurious-free dynamic rangefIN = 10 MHz9688dBc
fIN = 20 MHz829389
fIN = 70 MHz9387
fIN = 100 MHz8582
fIN = 170 MHz8683
fIN = 230 MHz8180
HD2Second-order harmonic distortionfIN = 10 MHz10697dBc
fIN = 20 MHz8210295
fIN = 70 MHz10195
fIN = 100 MHz9593
fIN = 170 MHz8887
fIN = 230 MHz8181
HD3Third-order harmonic distortionfIN = 10 MHz9688dBc
fIN = 20 MHz829392
fIN = 70 MHz9387
fIN = 100 MHz8582
fIN = 170 MHz8783
fIN = 230 MHz8280
Non
HD2, HD3
Spurious-free dynamic range (excluding HD2, HD3)fIN = 10 MHz9992dBc
fIN = 20 MHz8710191
fIN = 70 MHz9993
fIN = 100 MHz9892
fIN = 170 MHz9992
fIN = 230 MHz9793
THDTotal harmonic distortionfIN = 10 MHz9485dBc
fIN = 20 MHz809285
fIN = 70 MHz9185
fIN = 100 MHz8682
fIN = 170 MHz8481
fIN = 230 MHz7877
IMD3Two-tone, third-order intermodulation distortionfIN1 = 45 MHz,
fIN2 = 50 MHz
–95–94dBFS
fIN1 = 185 MHz,
fIN2 = 190 MHz
–90–89
Reported from a 1-MHz offset.