ISL267817_14 Datasheet, PDF (8/18 Pages) Intersil Corporation – 12-Bit Differential Input 200kSPS SAR ADC

ISL267817
Typical Performance Characteristics
f_CLK = 16 * f_SAMPLE, unless otherwise specified.
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
1.00 1.20 1.40 1.60 1.80 2.00 2.20 2.40
REFERENCE VOLTAGE (V)
FIGURE 6. CHANGE IN OFFSET vs REFERENCE VOLTAGE
T_A = +25°C, V_CC = 5V, V_REF = 2.5V, f_SAMPLE = 200kHz,
1.2
0.8
0.4
0.0
-0.4
-0.8
-1.2
-50 -30 -10 10 30 50 70 90
TEMPERATURE (°C)
FIGURE 7. CHANGE IN OFFSET vs TEMPERATURE
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
1.00 1.20 1.40 1.60 1.80 2.00 2.20 2.40
REFERENCE VOLTAGE (V)
FIGURE 8. CHANGE IN GAIN vs REFERENCE VOLTAGE
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
-50 -30 -10 10 30 50 70 90
TEMPERATURE (°C)
FIGURE 9. CHANGE IN GAIN vs TEMPERATURE
12.0
11.5
11.0
10.5
10.0
9.5
9.0
0.1
1.0
10.0
REFERENCE VOLTAGE (V)
FIGURE 10. EFFECTIVE NUMBER OF BITS vs REFERENCE VOLTAGE
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
1
10
100
1k
RIPPLE FREQUENCY (Hz)
FIGURE 11. POWER SUPPLY REJECTION vs RIPPLE FREQUENCY
8
FN7877.2
April 19, 2012