ADS8638_14 Datasheet, PDF (35/76 Pages) Texas Instruments – 12-Bit, 1MSPS, 4-/8-Channel, Bipolar-Input, SAR Analog-to-Digital Converter with Software-Selectable Ranges

ADS8634
ADS8638
www.ti.com
SBAS541A – MAY 2011 – REVISED AUGUST 2011
DOUT DATA FORMAT
The device outputs 16-bit data in every cycle. Table 8 shows the DOUT data format.
Table 8. DOUT Data Format
PIN
DOUT
CHANNEL ADDRESS
Bit 15 Bit 14 Bit 13 Bit 12
ADDR ADDR ADDR ADDR
3
2
1
0
Bit 11
D11
(MSB)
Bit 10
D10
Bit 9
D9
Bit 8
D8
CONVERSION RESULT
Bit 7 Bit 6 Bit 5 Bit 4
D7
D6
D5
D4
Bit 3
D3
Bit 2
D2
Bit 1
D1
Bit 0
D0
(LSB)
Bits[15:12]
Bits[11:0]
Bit Description for the ADS8638 DOUT Data
Channel/temperature sensor address
These bits represent the adress of channel or temperature sensor.
0000 = Channel 0
0001 = Channel 1
0010 = Channel 2
0011 = Channel 3
0100 = Channel 4
0101 = Channel 5
0110 = Channel 6
0111 = Channel 7
1111 = Temperature sensor
Conversion result for the channel/temperature sensor represented by bits[15:12], in MSB-first format
Bits[15:12]
Bits[11:0]
Bit Description for the ADS8634 DOUT Data
Channel/temperature sensor address
These bits represent the adress of channel or temperature sensor.
000X = Channel 0
001X = Channel 1
010X = Channel 2
011X = Channel 3
1111 = Temperature sensor
Conversion result for the channel/temperature sensor represented by bits[15:12], in MSB-first format
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): ADS8634 ADS8638
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