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ADS9128RHAR Datasheet(PDF) 36 Page - Texas Instruments

Part # ADS9128RHAR
Description  ADS912x 16-Bit, 20MSPS SAR ADCs With Fully Differential ADC Input Driver
PDF  67 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

ADS9128RHAR Datasheet(HTML) 36 Page - Texas Instruments

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7.2.1 Register 0Dh (offset = Dh) [reset = 2002h]
Figure 7-13. Register 0Dh
15
14
13
12
11
10
9
8
RESERVED
DATA_FORMAT
RESERVED
LAT_INC
R/W-0h
R/W-1h
R/W-0h
R/W-0h
7
6
5
4
3
2
1
0
GE_CAL_EN1
OSR_EN
OSR
RESERVED
R/W-0h
R/W-0h
R/W-0h
R/W-2h
Figure 7-14. Register 0Dh Field Descriptions
Bit
Field
Type
Reset
Description
15-14
RESERVED
R/W
0h
Reserved. Do not change from the default reset value.
13
DATA_FORMAT
R/W
1h
Select data format for the ADC conversion result.
0 : Straight-binary format
1 : Two's-complement format
12-10
RESERVED
R/W
0h
Reserved. Do not change from the default reset value.
9-8
LAT_INC
R/W
0h
For the ADS9129, set this field to 11b for optimum INL
performance.
7
GE_CAL_EN1
R/W
0h
Global control for gain error calibration.
0 : Gain error calibration disabled
1 : Gain error calibration enabled
6
OSR_EN
R/W
0h
Control for data averaging depth.
0 : Data averaging disabled
1 : Data averaging enabled
5-2
OSR
R/W
0h
Control for enabling data averaging.
0 : 2 samples averaged
1 : 4 samples averaged
2 : 8 samples averaged
3 : 16 samples averaged
1-0
RESERVED
R/W
2h
Reserved. Do not change from the default reset value.
7.2.2 Register 10h (offset = 10h) [reset = 0h]
Figure 7-15. Register 10h
15
14
13
12
11
10
9
8
RESERVED
R/W-0h
7
6
5
4
3
2
1
0
RESERVED
RESERVED
R/W-0h
R/W-0h
Figure 7-16. Register 10h Field Descriptions
Bit
Field
Type
Reset
Description
15-1
RESERVED
R/W
0h
Reserved. Do not change from the default reset value.
0
HI_FREQ
R/W
0h
Analog input fast slew rate control
0: Normal slew rate.
1: Fast slew rate. Fast analog input control enabled.
Recommended for input frequencies >2MHz. Also see the
HI_FREQ_EN register bit.
ADS9127, ADS9128, ADS9129
SBASB82 – MAY 2025
www.ti.com
36
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Copyright © 2025 Texas Instruments Incorporated
Product Folder Links: ADS9127 ADS9128 ADS9129



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