Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- FUNCTIONAL BLOCK DIAGRAM
- PRODUCT HIGHLIGHTS
- TABLE OF CONTENTS
- REVISION HISTORY
- GENERAL DESCRIPTION
- SPECIFICATIONS
- ADC DC SPECIFICATIONS—AD9640ABCPZ-80, AD9640BCPZ80, AD9640ABCPZ-105, AND AD9640BCPZ-105
- ADC DC SPECIFICATIONS—AD9640ABCPZ-125, AD9640BCPZ125, AD9640ABCPZ-150, AND AD9640BCPZ150
- ADC AC SPECIFICATIONS—AD9640ABCPZ-80, AD9640BCPZ80, AD9640ABCPZ-105, AND AD9640BCPZ-105
- ADC AC SPECIFICATIONS—AD9640ABCPZ-125, AD9640BCPZ125, AD9640ABCPZ-150, AND AD9640BCPZ 150
- DIGITAL SPECIFICATIONS
- SWITCHING SPECIFICATIONS—AD9640ABCPZ-80, AD9640BCPZ-80, AD9640ABCPZ-105, AND AD9640BCPZ105
- SWITCHING SPECIFICATIONS—AD9640ABCPZ-125, AD9640BCPZ-125, AD9640ABCPZ-150, AND AD9640BCPZ150
- TIMING SPECIFICATIONS
- ABSOLUTE MAXIMUM RATINGS
- PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
- EQUIVALENT CIRCUITS
- TYPICAL PERFORMANCE CHARACTERISTICS
- THEORY OF OPERATION
- ADC OVERRANGE AND GAIN CONTROL
- SIGNAL MONITOR
- BUILT-IN SELF-TEST (BIST) AND OUTPUT TEST
- CHANNEL/CHIP SYNCHRONIZATION
- SERIAL PORT INTERFACE (SPI)
- MEMORY MAP
- READING THE MEMORY MAP TABLE
- EXTERNAL MEMORY MAP
- MEMORY MAP REGISTER DESCRIPTION
- Sync Control (Register 0x100)
- Fast Detect Control (Register 0x104)
- Fine Upper Threshold (Register 0x106 and Register 0x107)
- Fine Lower Threshold (Register 0x108 and Register 0x109)
- Signal Monitor DC Correction Control (Register 0x10C)
- Signal Monitor DC Value Channel A (Register 0x10D and Register 0x10E)
- Signal Monitor DC Value Channel B (Register 0x10F and Register 0x110)
- Signal Monitor SPORT Control (Register 0x111)
- Signal Monitor Control (Register 0x112)
- Signal Monitor Period (Register 0x113 to Register 0x115)
- Signal Monitor Result Channel A (Register 0x116 to Register 0x118)
- Signal Monitor Result Channel B (Register 0x119 to Register 0x11B)
- APPLICATIONS INFORMATION
- OUTLINE DIMENSIONS
AD9640
Rev. B | Page 21 of 52
0
–120
0
06547-086
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 7060
150MSPS
440MHz @ –1dBFS
SNR = 65dBc (66dBFS)
ENOB = 10.4 BITS
SFDR = 70.0dB
SECOND HARMONIC
THIRD HARMONIC
Figure 22. AD9640-150 Single-Tone FFT with f
IN
= 440 MHz
0
–120
0
06547-057
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 60
125 MSPS
2.3MHz @ –1dBFS
SNR = 72.3dBc (73.3dBFS)
ENOB = 11.8 BITS
SFDR = 88.4dBc
SECOND HARMONIC
THIRD HARMONIC
Figure 23. AD9640-125 Single-Tone FFT with f
IN
= 2.3 MHz
0
–120
0
06547-058
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 60
125 MSPS
30.3MHz @ –1dBFS
SNR = 72.1dBc (73.1dBFS)
ENOB = 11.8 BITS
SFDR = 89.1dBc
THIRD HARMONIC
SECOND HARMONIC
Figure 24. AD9640-125 Single-Tone FFT with f
IN
= 30.3 MHz
0
–120
0
06547-093
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 60
125MSPS
70MHz @ –1dBFS
SNR = 71.8dBc (72.8dBFS)
ENOB = 11.7 BITS
SFDR = 85dBc
SECOND HARMONIC
THIRD HARMONIC
Figure 25. AD9640-125 Single-Tone FFT with f
IN
= 70 MHz
0
–120
0
06547-059
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 60
125 MSPS
140MHz @ –1dBFS
SNR = 71.4dBc (72.4dBFS)
ENOB = 11.7 BITS
SFDR = 87.1dBc
SECOND HARMONIC
THIRD HARMONIC
Figure 26. AD9640-125 Single-Tone FFT with f
IN
= 140 MHz
0
–120
0
06547-060
FREQUENCY (MHz)
AMPLITUDE (dBFS)
–20
–40
–60
–80
–100
10 20 30 40 50 60
125 MSPS
200MHz @ –1dBFS
SNR = 70.8dBc (71.8dBFS)
ENOB = 11.6 BITS
SFDR = 80.5dBc
SECOND HARMONIC
THIRD HARMONIC
Figure 27. AD9640-125 Single-Tone FFT with f
IN
= 200 MHz