AD7452 Analog Devices, AD7452 Datasheet - Page 10

• Manufacturer Part Number: AD7452
• Description: Differential Input, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7452

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 555kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

AD7452
AD7452–TYPICAL PERFORMANCE CHARACTERISTICS
T
A
Figure 5. SINAD vs. Analog Input Frequency for Various Supply Voltages
Figure 7. PSRR vs. Supply Ripple Frequency without Supply Decoupling
= 25°C, f
–100
–100
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–40
–60
–80
75
70
65
60
55
0
0
10
10
0
Figure 6. CMRR vs. Frequency for V
100mV p-p SINE WAVE ON V
NO DECOUPLING ON V
S
= 555 kSPS, f
100
200
SUPPLY RIPPLE FREQUENCY (kHz)
300
100
SCLK
FREQUENCY (kHz)
FREQUENCY (kHz)
400
V
DD
DD
= 10 MHz, unless otherwise noted.
= 3V
V
500
V
DD
DD
V
V
DD
DD
DD
= 5.25V
= 5V
= 3V
= 3.6V
600
DD
1000
100
= 5 V and 3 V
700
V
DD
= 5V
V
800
V
DD
DD
= 2.7V
= 4.75V
900 1000
10000
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–100
–120
–140
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
–20
–40
–60
–80
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
0
0
0
Figure 8. Dynamic Performance with V
Figure 10. Typical INL for V
Figure 9. Typical DNL for V
1024
1024
100
FREQUENCY (kHz)
CODE
CODE
2048
2048
200
8192 POINT FFT
f
f
SINAD = 71.7dB
THD = –82dB
SFDR = –83dB
SAMPLE
IN
DD
DD
= 100kSPS
= 5 V
3072
3072
= 5 V
DD
= 555kSPS
= 5 V
4096
4096
277