ISL267450_14 Datasheet, PDF (9/19 Pages) Intersil Corporation – 12-Bit, 1MSPS SAR ADCs

ISL267450
Typical Performance Characteristics
0
0
8192-POINT FFT
8192-POINT FFT
-20
f_SAMPLE = 1MSPS
-20 ^fSAMPLE ^{= 833kSPS}
f_IN = 300kHz
f_IN = 300kHz
-40
SINAD = 71.55dB
-40 ^{SINAD = 69.83dB}
THD = -80.88dB
THD = -82.02dB
-60
SFDR = 84.08dB
-60 ^{SFDR = 82.93dB}
-80
-80
-100
-100
-120
-120
-140
-140
-160
0
100
200
300
400
500
FREQUENCY (kHz)
FIGURE 3. DYNAMIC PERFORMANCE AT 1MSPS WITH V_DD = 5V
-160
0
100
200
300
400
FREQUENCY (kHz)
FIGURE 4. DYNAMIC PERFORMANCE AT 833KSPS WITH V_DD = 3V
74
72
70
68
2.7V _3.3V
66
4.75V
64
5.25V
62
60
10
100
1k
TEST FREQUENCY (Hz)
FIGURE 5. SINAD vs ANALOG FREQUENCY FROM VARIOUS SUPPLY
VOLTAGES
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
1024
2048
CODE
3072
FIGURE 6. TYPICAL DNL FOR V_DD = 5V
4096
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0 ₀
1024
2048
CODE
3072
FIGURE 7. TYPICAL DNL FOR V_DD = 3V
4096
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0 ₀
1024
2048
CODE
3072
FIGURE 8. TYPICAL INL FOR V_DD = 5V
4096
9
FN8341.0
August 10, 2012