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ADS4449 Datasheet(PDF) 28 Page - Texas Instruments

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Part # ADS4449
Description  Quad-Channel, 14-Bit, 250-MSPS, Low-Power ADC
PDF  54 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS4449 Datasheet(HTML) 28 Page - Texas Instruments

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ADS4449
SBAS603 – APRIL 2013
www.ti.com
DESCRIPTION OF SERIAL REGISTERS
Register Address 00h (Default = 00h)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
RESET
READOUT
Bits D[7:2]
Always write '0'
Bit D1
RESET: Software reset applied
This bit resets all internal registers to the default values and self-clears to '0'.
Bit D0
READOUT: Serial readout
This bit sets the serial readout of the registers.
0 = Serial readout of registers disabled; the SDOUT pin is placed in a high-impedance
state. (default)
1 = Serial readout enabled; the SDOUT pin functions as a serial data readout with
CMOS logic levels running from the DRVDD supply.
Register Address 01h (Default = 00h)
D7
D6
D5
D4
D3
D2
D1
D0
LVDS SWING
0
0
Bits D[7:2]
LVDS SWING: LVDS swing programmability
These bits program the LVDS swing only after the ENABLE LVDS SWING PROG bits
are set to '11'.
000000 = Default LVDS swing; ±350 mV with an external 100-
Ω termination (default)
011011 = ±420-mV LVDS swing with an external 100-
Ω termination
110010 = ±470-mV LVDS swing with an external 100-
Ω termination
010100 = ±560-mV LVDS swing with an external 100-
Ω termination
001111 = ±160-mV LVDS swing with an external 100-
Ω termination
Bits D[1:0]
Always write '0'
28
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Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: ADS4449



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