ADS7865 Datasheet, PDF (9/30 Pages) Texas Instruments – Dual, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-to-Digital Converter

ADS7865
www.ti.com.............................................................................................................................................................................................. SBAS441 – OCTOBER 2008
TYPICAL CHARACTERISTICS
Over the entire supply voltage range; V_REF = 2.5V (internal), f_CLK = 32MHz, and f_DATA = 2MSPS, unless otherwise noted.
INTEGRAL NONLINEARITY vs
DATA RATE
1.00
0.75
0.50
Positive
0.25
0
-0.25
-0.50
Negative
-0.75
-1.00
0.50 0.75 1.00 1.25 1.50 1.75 2.00
Data Rate (MSPS)
Figure 3.
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
INTEGRAL NONLINEARITY vs CODE
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 5.
DIFFERENTIAL NONLINEARITY vs
DATA RATE
1.00
0.75
0.50
0.25
Positive
0
-0.25
-0.50
Negative
-0.75
-1.00
0.50 0.75 1.00 1.25 1.50 1.75 2.00
Data Rate (MSPS)
Figure 7.
INTEGRAL NONLINEARITY vs
TEMPERATURE
1.00
0.75
0.50
Positive
0.25
0
-0.25
-0.50
Negative
-0.75
-1.00
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 4.
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
DIFFERENTIAL NONLINEARITY vs CODE
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 6.
DIFFERENTIAL NONLINEARITY vs
TEMPERATURE
1.00
0.75
0.50
Positive
0.25
0
-0.25
-0.50
Negative
-0.75
-1.00
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 8.
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Product Folder Link(s): ADS7865
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