ADS7887_14 Datasheet, PDF (13/29 Pages) Texas Instruments – 10-/8-Bit, 1.25-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS

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TYPICAL CHARACTERISTICS ADS7887 (continued)
GAIN ERROR
vs
FREE-AIR TEMPERATURE
1
0.8
f_s = 1.25 MSPS,
V_DD = 5 V
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
−40 −20
0 20 40 60 80 100 120
T_A − Free-Air Temperature − °C
Figure 19.
0.5
0.4
V_DD = 2.35 V,
f_s = 1.25 MSPS,
0.3 T_A = 255C
0.2
DNL
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
0
256
512
768
Output Code
Figure 20.
0.5
0.4
V_DD = 2.35 V,
f_s = 1.25 MSPS,
0.3 T_A = 255C
0.2
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
0
256
INL
512
768
Output Code
Figure 21.
ADS7887
ADS7888
SLAS468 – JUNE 2005
1024
1024
13