AD9221 Analog Devices, AD9221 Datasheet - Page 6

• Manufacturer Part Number: AD9221
• Description: Complete 12-Bit 1.25 MSPS Monolithic A/D Converter
• Manufacturer: Analog Devices

Specifications of AD9221

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1.5MSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: 2 V p-p,5V p-p
• Adc Architecture: Pipelined
• Pkg Type: SOIC,SOP

TPC 7. THD vs. Input Frequency
(Input Span = 5.0 V p-p, V
AD9221/AD9223/AD9220
AD9221–Typical Performance Characteristics
TPC 4. SINAD vs. Input Frequency
(Input Span = 2.0 V p-p, V
–0.8
–1.0
–0.2
–0.4
–0.6
80
75
70
65
60
55
50
45
40
–50
–55
–60
–65
–70
–75
–80
–85
–90
1.0
0.8
0.6
0.4
0.2
0.0
0.1
0
TPC 1. Typical DNL
0.1
FREQUENCY – MHz
FREQUENCY – MHz
–0.5dB
–6.0dB
–20.0dB
CODE
–0.5dB
1.0
CM
–20.0dB
CM
–6.0dB
= 2.5 V)
1.0
= 2.5 V)
4095
TPC 5. THD vs. Input Frequency
(Input Span = 2.0 V p-p, V
TPC 8. THD vs. Sample Rate
(A
V
–100
–100
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
–0.2
–0.4
–0.6
–0.8
–1.0
–60
–65
–70
–75
–80
–85
–90
–95
CM
1.0
0.8
0.6
0.4
0.2
0.0
IN
0.1
0.2
0
= –0.5 dB, f
= 2.5 V)
TPC 2. Typical INL
0.3
–20.0dB
–6.0dB
–0.5dB
0.4
SAMPLE RATE – MSPS
FREQUENCY – MHz
–6–
0.6
IN
CODE
= 500 kHz,
0.8
1
1.0
5V p-p
2V p-p
CM
(AVDD = 5 V, DVDD = 5 V, f
= 2.5 V)
2
4095
3
TPC 6. SINAD vs. Input Frequency
(Input Span = 5.0 V p-p, V
TPC 3. “Grounded-Input”
Histogram (Input Span = 2 V p-p)
TPC 9. SNR/SFDR vs. A
Amplitude) (f
Span = 2 V p-p, V
100
80
75
70
65
60
55
50
45
40
90
80
70
60
50
40
30
20
10
–60
SAMPLE
121,764
–50
–20.0dB
N–1
–0.5dB
–6.0dB
0.1
= 1.5 MSPS, T
FREQUENCY – MHz
–40
IN
SFDR
SNR
8,180,388
A
= 500 kHz, Input
CODE
IN
–30
N
CM
– dBFS
= 2.5 V)
–20
A
CM
= 25 C)
IN
85,895
N+1
1.0
= 2.5 V)
(Input
–10
REV. E
0