SBAS991B February   2021  – September 2022 ADC3661 , ADC3662 , ADC3663

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 - Power Consumption
    6. 6.6  Electrical Characteristics - DC Specifications
    7. 6.7  Electrical Characteristics - AC Specifications
    8. 6.8  Timing Requirements
    9. 6.9  Typical Characteristics - ADC3661
    10. 6.10 Typical Characteristics - ADC3662
    11. 6.11 Typical Characteristics - ADC3663
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Analog Input
        1. 8.3.1.1 Analog Input Bandwidth
        2. 8.3.1.2 Analog Front End Design
          1. 8.3.1.2.1 Sampling Glitch Filter Design
          2. 8.3.1.2.2 Analog Input Termination and DC Bias
            1. 8.3.1.2.2.1 AC-Coupling
            2. 8.3.1.2.2.2 DC-Coupling
        3. 8.3.1.3 Auto-Zero Feature
      2. 8.3.2 Clock Input
        1. 8.3.2.1 Single Ended vs Differential Clock Input
        2. 8.3.2.2 Signal Acquisition Time Adjust
      3. 8.3.3 Voltage Reference
        1. 8.3.3.1 Internal voltage reference
        2. 8.3.3.2 External voltage reference (VREF)
        3. 8.3.3.3 External voltage reference with internal buffer (REFBUF)
      4. 8.3.4 Digital Down Converter
        1. 8.3.4.1 DDC MUX
        2. 8.3.4.2 Digital Filter Operation
        3. 8.3.4.3 FS/4 Mixing with Real Output
        4. 8.3.4.4 Numerically Controlled Oscillator (NCO) and Digital Mixer
        5. 8.3.4.5 Decimation Filter
        6. 8.3.4.6 SYNC
        7. 8.3.4.7 Output Formatting with Decimation
      5. 8.3.5 Digital Interface
        1. 8.3.5.1 Output Formatter
        2. 8.3.5.2 Output Bit Mapper
        3. 8.3.5.3 Output Scrambler
        4. 8.3.5.4 Output Interface/Mode Configuration
          1. 8.3.5.4.1 Configuration Example
        5. 8.3.5.5 Output Data Format
      6. 8.3.6 Test Pattern
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal operation
      2. 8.4.2 Power Down Options
      3. 8.4.3 Digital Channel Averaging
    5. 8.5 Programming
      1. 8.5.1 Configuration using PINs only
      2. 8.5.2 Configuration using the SPI interface
        1. 8.5.2.1 Register Write
        2. 8.5.2.2 Register Read
    6. 8.6 Register Map
      1. 8.6.1 Detailed Register Description
  9. 9 Application Information Disclaimer
    1. 9.1 Typical Application
      1. 9.1.1 Design Requirements
      2. 9.1.2 Detailed Design Procedure
        1. 9.1.2.1 Input Signal Path
        2. 9.1.2.2 Sampling Clock
        3. 9.1.2.3 Voltage Reference
      3. 9.1.3 Application Curves
    2. 9.2 Initialization Set Up
      1. 9.2.1 Register Initialization During Operation
    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

6.7 Electrical Characteristics - AC Specifications

Typical values are over the operating free-air temperature range, at TA = 25°C, full temperature range is TMIN = –40°C to TMAX = 105°C, ADC sampling rate = 10-65 MSPS, external reference, 50% clock duty cycle, AVDD = IOVDD = 1.8 V, external 1.6 V reference, and –1-dBFS differential input, unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ADC3661: 10 MSPS
NSD Noise Spectral Density No input signal -150.0 dBFS/Hz
SNR Signal to noise ratio fIN = 1.1 MHz 82.0 dBFS
fIN = 4.9 MHz 80.5 82.0
fIN = 9.9 MHz 81.9
SINAD Signal to noise and distortion ratio fIN = 1.1 MHz 81.8 dBFS
fIN = 4.9 MHz 80.0 81.8
fIN = 9.9 MHz 81.7
ENOB Effective number of bits fIN = 1.1 MHz 13.3 bit
fIN = 4.9 MHz 13.0 13.3
fIN = 9.9 MHz 13.3
THD Total Harmonic Distortion (First five harmonics) fIN = 1.1 MHz 87 dBc
fIN = 4.9 MHz 81 87
fIN = 9.9 MHz 91
SFDR Spur free dynamic range including second and third harmonic distortion fIN = 1.1 MHz 88 dBc
fIN = 4.9 MHz 81 87
fIN = 9.9 MHz 92
Non HD2,3 Spur free dynamic range (excluding HD2 and HD3) fIN = 1.1 MHz 101 dBFS
fIN = 4.9 MHz 91 96
fIN = 9.9 MHz 99
IMD3 Two tone inter-modulation distortion f1 = 3 MHz, f2 = 4 MHz, AIN = -7 dBFS/tone 89 dBc
ADC3662: 25 MSPS
NSD Noise Spectral Density No input signal -154.0 dBFS/Hz
SNR Signal to noise ratio fIN = 1.1 MHz 82.0 dBFS
fIN = 5 MHz 80.5 82.0
fIN = 10 MHz 81.9
fIN = 20 MHz 81.6
fIN = 40 MHz 78.6
SINAD Signal to noise and distortion ratio fIN = 1.1 MHz 81.9 dBFS
fIN = 5 MHz 80 81.9
fIN = 10 MHz 81.9
fIN = 20 MHz 81.5
fIN = 40 MHz 78.4
ENOB Effective number of bits fIN = 1.1 MHz 13.3 bit
fIN = 5 MHz 13.0 13.3
fIN = 10 MHz 13.3
fIN = 20 MHz 13.2
fIN = 40 MHz 12.7
THD Total Harmonic Distortion (First five harmonics) fIN = 1.1 MHz 85 dBc
fIN = 5 MHz 81 89
fIN = 10 MHz 88
fIN = 20 MHz 83
fIN = 40 MHz 86
SFDR Spur free dynamic range including second and third harmonic distortion fIN = 1.1 MHz 86 dBc
fIN = 5 MHz 82 90
fIN = 10 MHz 89
fIN = 20 MHz 83
fIN = 40 MHz 89
Non HD2,3 Spur free dynamic range (excluding HD2 and HD3) fIN = 1.1 MHz 101 dBFS
fIN = 5 MHz 90 101
fIN = 10 MHz 103
fIN = 20 MHz 99
fIN = 40 MHz 94
IMD3 Two tone inter-modulation distortion f1 = 3 MHz, f2 = 4 MHz, AIN = -7 dBFS/tone 84 dBc
f1 = 10 MHz, f2 = 12 MHz, AIN = -7 dBFS/tone 87
ADC3663: 65 MSPS
NSD Noise Spectral Density No input signal -158.0 dBFS/Hz
SNR Signal to noise ratio fIN = 1.1 MHz 82.0 dBFS
fIN = 5 MHz 80 82.0
fIN = 10 MHz 81.9
fIN = 20 MHz 81.6
fIN = 40 MHz 80.5
fIN = 70 MHz 76.9
SINAD Signal to noise and distortion ratio fIN = 1.1 MHz 80.0 dBFS
fIN = 5 MHz 80.0
fIN = 10 MHz 80.0
fIN = 20 MHz 80.0
fIN = 40 MHz 78.5
fIN = 70 MHz 75.5
ENOB Effective number of bits fIN = 1.1 MHz 13.0 bit
fIN = 5 MHz 13.0
fIN = 10 MHz 13.0
fIN = 20 MHz 13.0
fIN = 40 MHz 12.7
fIN = 70 MHz 12.3
THD Total Harmonic Distortion (First five harmonics) fIN = 1.1 MHz 81 dBc
fIN = 5 MHz 81 88
fIN = 10 MHz 89
fIN = 20 MHz 83
fIN = 40 MHz 82
fIN = 70 MHz 80
SFDR Spur free dynamic range including second and third harmonic distortion fIN = 1.1 MHz 82 dBc
fIN = 5 MHz 82 89
fIN = 10 MHz 92
fIN = 20 MHz 84
fIN = 40 MHz 84
fIN = 70 MHz 82
Non HD2,3 Spur free dynamic range (excluding HD2 and HD3) fIN = 1.1 MHz 100 dBFS
fIN = 5 MHz 91 99
fIN = 10 MHz 99
fIN = 20 MHz 96
fIN = 40 MHz 91
fIN = 70 MHz 86
IMD3 Two tone inter-modulation distortion f1 = 1 MHz, f2 = 2 MHz, AIN = -7 dBFS/tone 100 dBc
f1 = 10 MHz, f2 = 12 MHz, AIN = -7 dBFS/tone 104