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ADS42LB49 Datasheet(PDF) 41 Page - Texas Instruments

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Part # ADS42LB49
Description  Dual-Channel, 14- and 16-Bit, 250-MSPS Analog-to-Digital Converters
PDF  70 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS42LB49 Datasheet(HTML) 41 Page - Texas Instruments

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ADS42JB49
ADS42JB69
www.ti.com
SLAS900C – OCTOBER 2012 – REVISED JULY 2013
REGISTER
REGISTER DATA
ADDRESS
A[7:0] (Hex)
D7
D6
D5
D4
D3
D2
D1
D0
B
CHA GAIN
CHA GAIN EN
0
0
Default: 00h
D[7:3]
CHA GAIN
Digital gain for channel A (must set the CHA GAIN EN bit first, bit D2)
Table 8. Digital Gain for Channel A
FULL-SCALE
FULL-SCALE
REGISTER VALUE
DIGITAL GAIN
REGISTER VALUE
DIGITAL GAIN
INPUT VOLTAGE
INPUT VOLTAGE
00000
0 dB
2.0 VPP
01010
1.5 dB
1.7 VPP
00001
Do not use
—
01011
2 dB
1.6 VPP
00010
Do not use
—
01100
2.5 dB
1.5 VPP
00011
–2.0 dB
2.5 VPP
01101
3 dB
1.4 VPP
00100
–1.5 dB
2.4 VPP
01110
3.5 dB
1.3 VPP
00101
–1.0 dB
2.2 VPP
01111
4 dB
1.25 VPP
00110
–0.5 dB
2.1 VPP
10000
4.5 dB
1.2 VPP
00111
0 dB
2.0 VPP
10001
5 dB
1.1 VPP
01000
0.5 dB
1.9 VPP
10010
5.5 dB
1.05 VPP
01001
1 dB
1.8 VPP
10011
6 dB
1.0 VPP
D2
CHA GAIN EN
Digital gain enable bit for channel A
0
Digital gain disabled
1
Digital gain enabled
REGISTER
REGISTER DATA
ADDRESS
A[7:0] (Hex)
D7
D6
D5
D4
D3
D2
D1
D0
CHB GAIN
C
CHB GAIN
0
0
EN
Default: 00h
D[7:3]
CHB GAIN
Digital gain for channel B (must set the CHA GAIN EN bit first, bit D2)
Table 9. Digital Gain for Channel B
FULL-SCALE
FULL-SCALE
REGISTER VALUE
DIGITAL GAIN
REGISTER VALUE
DIGITAL GAIN
INPUT VOLTAGE
INPUT VOLTAGE
00000
0 dB
2.0 VPP
01010
1.5 dB
1.7 VPP
00001
Do not use
—
01011
2 dB
1.6 VPP
00010
Do not use
—
01100
2.5 dB
1.5 VPP
00011
–2.0 dB
2.5 VPP
01101
3 dB
1.4 VPP
00100
–1.5 dB
2.4 VPP
01110
3.5 dB
1.3 VPP
00101
–1.0 dB
2.2 VPP
01111
4 dB
1.25 VPP
00110
–0.5 dB
2.1 VPP
10000
4.5 dB
1.2 VPP
00111
0 dB
2.0 VPP
10001
5 dB
1.1 VPP
01000
0.5 dB
1.9 VPP
10010
5.5 dB
1.05 VPP
01001
1 dB
1.8 VPP
10011
6 dB
1.0 VPP
D2
CHB GAIN EN
Digital gain enable bit for channel B
0
Digital gain disabled
1
Digital gain enabled
Copyright © 2012–2013, Texas Instruments Incorporated
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Product Folder Links: ADS42JB49 ADS42JB69



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