THS1007

SLAS286A – AUGUST 2000– REVISED DECEMBER 2002

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18

Figure 31 shows the conversion timing when four analog input channels are selected. The maximum throughput

rate per channel is 1.5 MSPS in this mode. The data flow in the bottom of the figure shows in which order the

converted data is available to the databus. The SYNC signal is active low when the data of channel one is

available to the data bus. The data of channel one is followed by the data of channel two, the data of channel

three and the data of channel four before channel one is again available to the databus and SYNC is active low.

Sample N

Channel 1, 2, 3, 4

Sample N+1

Channel 1, 2, 3, 4

Data N–1

Channel 4

Data N

Channel 1

Data N

Channel 2

Data N

Channel 3

Data N–1

Channel 1

Data N–1

Channel 2

Data N–1

Channel 3

AIN

CONV_CLK

READ†

†READ is the logical combination from CS0, CS1 and RD

SYNC

td(A)

td(pipe)

tw(CONV_CLKH)

tw(CONV_CLKL)

tc

tsu(CONV_CLKL-READL)

tsu(READH-CONV_CLKL)

tsu(CONV_CLKL-SYNCH)

tsu(CONV_CLKL-SYNCL)

Figure 31. Timing of Continuous Conversion Mode (4-channel operation)