ADS7884 Datasheet, PDF (11/22 Pages) Burr-Brown (TI) – 10-/8-BIT, 3-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS

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TYPICAL CHARACTERISTICS ADS7884 (continued)
ADS7884
ADS7885
SLAS567 – MARCH 2008
INTEGRAL NONLINEARITY
vs
FREE-AIR TEMPERATURE
0.8
T_A = 25°C
0.6 ^VDD ^{= 5 V at 3 MSPS,}
V_DD = 3 V at 2.5 MSPS
0.4 _{MAXINL, 5 V, 3MSPS}
0.2
MAXINL, 3 V, 2.5 MSPS
0
MININL, 5 V, 3MSPS
-0.2
MININL, 3 V, 2.5 MSPS
-0.4
-0.6
-0.8
-40 -20 0 20 40 60 80 100 120
T_A - Free-Air Temperature - °C
Figure 14.
OFFSET ERROR
vs
SUPPLY VOLTAGE
0.5
0.25
2.5 MSPS
3 MSPS
0
-0.25
-0.5
2.7
T_A = 25°C,
f_s = 3 MSPS or 2.5 MSPS,
V_DD = 5 V at 3 MSPS,
V_DD = 3 V at 2.5 MSPS
3.4
4.1
4.8
5.5
V_DD - Supply Voltage - V
Figure 17.
DIFFERENTIAL NONLINEARITY
vs
SUPPLY VOLTAGE
0.8
T_A = 25°C
0.6
0.4
MAXDNL, 3MSPS
0.2
MAXDNL, 2.5 MSPS
0
MINDNL, 2.5 MSPS
-0.2
-0.4
-0.6
-0.8
2.7
MINDNL, 3MSPS
3.4
4.1
4.8
5.5
V_DD - Supply Voltage - V
Figure 15.
OFFSET ERROR
vs
FREE-AIR TEMPERATURE
0.5
0.4
0.3
3 V, 2.5 MSPS
0.2
0.1
0 ^{5 V, 3MSPS}
-0.1
-0.2
-0.3
-0.4
-0.5
-40
f_s = 3 MSPS or 2.5 MSPS,
V_DD = 5 V at 3 MSPS,
V_DD = 3 V at 2.5 MSPS
-20 0 20 40 60 80 100 120
T_A - Free-Air Temperature - °C
Figure 18.
GAIN ERROR
vs
FREE-AIR TEMPERATURE
0.2
0.15
0.1
f_s = 3 MSPS or 2.5 MSPS,
V_DD = 5 V at 3 MSPS,
V_DD = 3 V at 2.5 MSPS
0.05
3 V, 2.5 MSPS
0
-0.05
-0.1
-0.15
5 V, 3 MSPS
-0.2
-40 -20 0 20 40 60 80 100 120
T_A - Free-Air Temperature - °C
Figure 20.
INTEGRAL NONLINEARITY
vs
SUPPLY VOLTAGE
0.8
T_A = 25°C
0.6
0.4
MAXINL, 3MSPS
0.2
MAXINL, 2.5 MSPS
0 _{MININL, 2.5 MSPS}
-0.2
-0.4
MININL, 3MSPS
-0.6
-0.8
2.7
3.4
4.1
4.8
5.5
V_DD - Supply Voltage - V
Figure 16.
GAIN ERROR
vs
SUPPLY VOLTAGE
0.5
0.4 ^{TA = 25°C,}
f_s = 3 MSPS or 2.5 MSPS,
0.3 V_DD = 5 V at 3 MSPS,
0.2 ^{VDD = 3 V at 2.5 MSPS}
0.1
2.5 MSPS
0
-0.1
3 MSPS
-0.2
-0.3
-0.4
-0.5
2.7
3.4
4.1
4.8
5.5
V_DD - Supply Voltage - V
Figure 19.
Copyright © 2008, Texas Instruments Incorporated
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