AD6640ASTZ Analog Devices Inc, AD6640ASTZ Datasheet - Page 10

• Manufacturer Part Number: AD6640ASTZ
• Description: 12-BIT 65 MSPS MONOLITHIC A/D CONVERTER
• Manufacturer: Analog Devices Inc

Specifications of AD6640ASTZ

• Function: A/D Converter
• Rf Type: Cellular/PCS, GPS
• Secondary Attributes: 12 Bit, 65MSPS
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD6640
TPC 15. IF Sampling at 70 MHz without Dither
–100
–120
–100
–120
–20
–40
–60
–80
100
–20
–40
–60
–80
90
80
70
60
50
40
30
20
10
0
0
–80
0
50
dc
ENCODE = 50MSPS
AIN = 65.5MHz, 68.5MHz
NO DITHER
ENCODE = 65MSPS
AIN = 19.5MHz @ –36dBFS
NO DITHER
TPC 13. 16K FFT without Dither
–70
TPC 14. SFDR without Dither
ENCODE = 65MSPS
AIN = 19.5MHz
NO DITHER
6.5
ANALOG INPUT POWER LEVEL – dBFS
55
SFDR = 80dB
REFERENCE LINE
–60
FILTER MASK
ANALOG IF
FREQUENCY – MHz
FREQUENCY – MHz
–50
ALIASED
SIGNALS
13.0
60
–40
19.5
65
–30
–20
26.0
70
–10
32.5
75
0
–30
–60
–90
0
–120
–10–
–100
–120
TPC 18. IF Sampling at 70 MHz with Dither
100
–100
–120
–20
–40
–60
–80
90
80
70
60
50
40
30
20
10
–20
–40
–60
–80
0
–80
0
0
dc
50
ENCODE = 50MSPS
AIN = 65.5MHz, 68.5MHz
DITHER = –32.5dBm
–70
TPC 16. 16K FFT with Dither
TPC 17. SFDR with Dither
ENCODE = 65MSPS
AIN = 19.5MHz
DITHER = –32.5dBm
ANALOG INPUT POWER LEVEL – dBFS
6.5
55
–60
SFDR = 80dB
REFERENCE LINE
ANALOG IF
FILTER MASK
–50
FREQUENCY – MHz
FREQUENCY – MHz
13.0
ALIASED
SIGNALS
60
–40
ENCODE = 65MSPS
AIN = 19.5MHz @ –36dBFS
DITHER = –32.5dBm
19.5
–30
65
–20
26.0
70
–10
32.5
0
75
REV. A
0
–30
–60
–90
–120