LTC1293/LTC1294/LTC1296 WBLOCKID AGRA(Pin numbers refer to LTC1294) 18 20 CLK DVCC 19 AVCC INPUT 15 OUTPUT 16 D SHIFT IN SHIFT DOUT REGISTER REGISTER 1 CH0 SAMPLE 2 CH1 AND 3 HOLD CH2 COMP 4 ANALOG CH3 5 INPUT MUX 12-BIT CH4 SAR 6 CH5 12-BIT 7 CH6 CAPACITIVE 8 DAC CH7 9 COM CONTROL 17 10 11 12 13 14 AND CS TIMING DGND V– AGND REF– REF+ LTC1293 BD TEST CIRCUITSLoad Circuit for tdDO, tr and tfLoad Circuit for tenSSO and tdisSSO 1.4V 1.4V 3kΩ 3kΩ DOUT TEST POINT TEST POINT SSO 100pF LT1296 100pF LTC1293 TC02 LTC1293 TC08 Load Circuit for tOn and Off Channel Leakage Currentdis and ten 5V TEST POINT ION A ON CHANNEL 5V t 3k dis WAVEFORM 2, ten I D OFF OUT tdis WAVEFORM 1 A 100pF OFF LTC1293 TC05 CHANNELS POLARITY LTC1293 TC1 129346fs 8