Linear Technology LTC6912-1 Quick Start Manual Download Page 8

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DC861 QUICK START GUIDE

Figure 5. Dual PGA or 2:1 M UX Quick Set-Up (Dual Supply Operation)

Oscilloscope

#1 #2

Connect:

Out A to #1

Oscilloscope Input

Out B to #2

Oscilloscope Input

Sinew ave G enerator

Connect generator output

to INA and INB

Dual Pow er Supply

Ground
Lead

Figure 6. LED Display Examples in Hex and Decimal
(LTC6912-1 or LTC6912-2)

Note:

Only one oscilloscope channel is required

for output monitoring in a 2:1 M UX operation.

Summary of Contents for LTC6912-1

Page 1: ...ing on the information therein All referenced brands product names service names and trademarks are the property of their respective owners 00000005981LF 000 EOS Power Buy Now We have 45 000 LP502030...

Page 2: ...board contains an LTC6912 in the SSOP 16 The demo board highlights the f ollowing 1 Two independent digitally programmable gain amplif iers 2 A 2 1 Analog M UX with a dual PGA 3 Daisy chain oftwo dua...

Page 3: ...6912 3 wire serial interf ace are TTL CM OS compatible W hen CS LD is low the serial data on DI N is shif ted into an 8 bit shif t register on the rising edge ofthe clock with the M SB transf erred f...

Page 4: ...ressing the SELECT SW f or more than three seconds changes the LED display to show the LTC6912 setting in decimal UP SW I ncrements selected digit DOW N SW Decrements selected digit SEND SW Sends SPIc...

Page 5: ...upgui de t ot he f unc t i onoft he boa r d s j umper s swi t c hes a ndc onnec t or s see F i gur e 4 A DualPGA one DC861 1 Connect a DC861 board as shown in Figure 5 J2 Dual J6 DUAL SW 1 D ON SW 2 O...

Page 6: ...d set it to a 0 1V p p 100mV 1kHzsinewave ref er to Tables 1 or 2 f or the nominal PGA A and B input impedance 5 The 4 digit display on the slave board should be blank and the gain settings f or all f...

Page 7: ...y 01 then 02 then on the slave display 10 and 05 LTC6912 1 or b on the master display 01 then 02 then on the slave display 08 and 04 LTC6912 2 The oscilloscope display should show in sequence a 0 1Vp...

Page 8: ...1 Oscilloscope I nput Out B to 2 Oscilloscope I nput Sinew ave Generator Connect generator output to I NA and I NB DualPow er Suppl y Ground Lead Ground Lead Figure 6 LED Displ ay Exampl es in Hex and...

Page 9: ...ofSlave to 3 Oscilloscope I nput Out B ofSlave to 4 Oscilloscope I nput Figure 7 Quad PGA or 4 1 M UX Daisy Chain Quick Set Up DualSuppl y Operation Sinew ave Generator Connect generator output to I...