ADS5296 Datasheet, PDF (89/104 Pages) Texas Instruments – 10-Bit, 200-MSPS, 4-Channel and 12-Bit, 80-MSPS, 8-Channel Analog-to-Digital Converter

ADS5296
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SBAS606A – MAY 2013 – REVISED MAY 2013
Similarly, input channels 5 to 8 can be mapped to any LVDS output (OUT5 to OUT8) using the
MAP_CH5678_TO_OUTn bits, as shown in Table 65. Both multiplexing options are controlled by registers 50h to
55h. The channel mapping block diagram is illustrated in Figure 100.
Table 65. Mapping analog inputs IN8-IN8 to LVDS outputs OUT5-8
MAP_CH5678_TO_OUTN[3:0] ⁽¹⁾
MAPPING
0000
ADC input channel IN8 to OUTn
0010
ADC input channel IN7 to OUTn
0100
ADC input channel IN6 to OUTn
0110
ADC input channel IN5 to OUTn
1xxx
LVDS output buffer OUTn powered down
(1) n = 5, 6, 7, or 8.
Channel 8 Data
MAP_CH5678_to_OUTn[3:0] = 0000
Channel 7 Data
MAP_CH5678_to_OUTn[3:0] = 0010
Channel 6 Data
MAP_CH5678_to_OUTn[3:0] = 0100
Channel 5 Data
MAP_CH5678_to_OUTn[3:0] = 0110
(1)
OUTn
MAP_CH5678_to_OUTn[3:0] = 1xxx,
the unused OUTn LVDS buffer is powered down.
Channel 4 Data
MAP_CH1234_to_OUTn[3:0] = 0110
Channel 3 Data
MAP_CH1234_to_OUTn[3:0] = 0100
Channel 2 Data
MAP_CH1234_to_OUTn[3:0] = 0010
Channel 1 Data
MAP_CH1234_to_OUTn[3:0] = 0000
(1)
OUTn
MAP_CH1234_to_OUTn[3:0] = 1xxx,
the unused OUTn LVDS buffer is powered down.
(1) For channels 1 to 4, n = 1, 2, 3, 4. For channels 5 to 8, n = 5, 6, 7, 8.
Figure 100. Channel Mapping
The default mapping is shown in Table 66.
Table 66. Default Mapping After Reset
ANALOG INPUT CHANNEL
Channel IN1
Channel IN2
Channel IN3
Channel IN4
Channel IN5
Channel IN6
Channel IN7
Channel IN8
LVDS OUTPUT
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
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