ADS7886_14 Datasheet, PDF (8/24 Pages) Texas Instruments – 12-Bit, 1-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS

ADS7886
SLAS492A – SEPTEMBER 2005 – REVISED NOVEMBER 2009
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
1.6
f_s = 1 MSPS,
fSCLK = 20 MHz
1.5
125^oC
1.4
25^oC
1.3
1.2
1.1
1
2.35
−40^oC
3.075
3.8
4.525
V_DD − Supply Voltage − V
Figure 4.
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SCLK FREQUENCY
1.6
T_A = 25^oC
1.4
1.2
5V
1
2.35 V
0.8
0.6
0.4
0.2
5.25
0
0
5
10
15
20
f − SCLK Frequency − MHz
Figure 5.
ANALOG INPUT
LEAKAGE CURRENT
vs
FREE-AIR TEMPERATURE
40
30
20
10
5 V Input
0
−10
0 V Input
−20
−30
−40
−40
15
70
125
T_A − Free-Air Temperature − ^oC
Figure 7.
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SUPPLY CURRENT
vs
SAMPLE RATE
1.4 _{fSCLK = 20 MHz,}
T_A = 25^oC,
1.2 ^{Power Down Wih SCLK = Free Running}
1
0.8
5V
0.6
0.4
2.35 V
0.2
0
0 50 100 150 200 250 300 350
fs − Sample Rate − KSPS
Figure 6.
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