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00000005981LF-000
DC861A-A
EOS Power
ANALOG DEVICES
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Related Manuals for Linear Technology LTC6912-1
Summary of Contents for Linear Technology LTC6912-1
- Page 1 We have 45,000 LP502030-PCM-NTC-LD-A02554 - EEMB - Lithium Battery Rectangular 3.7V 250mAh Rechargeable in stock now. Starting at $0.034. This EEMB part is fully warrantied and traceable. 00000005981LF-000 DC861A-A EOS Power ANALOG DEVICES Buy Now Buy Now Looking for a discount? Check out our current promotions! Give us a call 1-855-837-4225...
- Page 2 SPI interf ace to select voltage gains of 0, 1, 2, 5, 10, 20, 50, means to input PG A settings to a PI C (micro-controller). The PI C and 100V/ V (LTC6912-1); and 0, 1, 2, 4, 8, 16, 32, and 64V/ V (LTC6912-2). All gains are inverting. The LTC6912 consists of 2 sends the settings to the PG A using a 3-wire SPI interf ace.
- Page 3 20mA of suppl y current and is not recommended. D escription of the 3-W ire SPI Interf ace Figure 3.Bl ock Diagram, LTC6912-1/ 2 Serial Interf ace G ain control of each amplif ier is independently programmable using the 3-wire SPI interf ace (see Figure 3). Logic levels f or the LTC6912 3-wire serial interf ace are TTL/ CM O S compatible.
- Page 4 DC861 QUICK START GUIDE Figure 4. DC861A Inputs, Outputs, Jumpers, Sw itches and Connectors. Jumper J6. Sets the LTC6912 f or a dual or a single power supply operation. In a singl e suppl y operation, the AG ND pin of the LTC6912 is connected to V+/ 2 thru the Jumper J2: Sets the LTC6912 f or a dual PGA or a 2:1 J6 j umper and the V- input must be grounded external l y.
- Page 5 #2 connected to O UT A and O UT B respectively should show a 1Vp-p, 1kH z sinewave (1Vp-p input times one). Tabl e 3. Hex and D ecimal Digits and PGA Settings. Hex ( LTC6912-1 Gain Decimal LTC6912-2 Gain Decimal...
- Page 6 M aster display digits #3 and 4, PG A A gain=01 and on oscilloscope channel #1 a 0.1Vp-p, 1kH z sinewave. c. Slave display digits #1 and 2, PG A B gain=10 (LTC6912-1) or PG A B gain=08 (LTC6912-2) and on oscilloscope channel #4 a 1.0Vp-p, 1kH z sinewave (LTC6912-1) or a 0.8Vp-p, 1kH z sinewave (LTC6912-2).
- Page 7 The oscilloscope display should show in sequence: a. 0.1Vp-p, 1kH z sine, 0.2Vp-p, 1kH z sinewave, 1.0Vp-p, 1kH z sinewave and 0.5Vp-p (f or an LTC6912-1) or b. 0.1Vp-p, 1kH z sine, 0.2Vp-p, 1kH z sinewave, 0.8Vp-p, 1kH z sinewave and 0.4Vp-p (f or an LTC6912-2).
- Page 8 I NA and I NB Ground Lead Connect: Out A to #1 Oscilloscope I nput Out B to #2 Oscilloscope I nput Ground Lead Dual Pow er Suppl y Figure 6. LED Displ ay Exampl es in Hex and Decimal (LTC6912-1 or LTC6912-2)
- Page 9 DC861 QUICK START GUIDE Figure 7. Quad PGA or 4:1 M UX Daisy Chain Quick Set-Up (Dual Suppl y Operation) Connect: Note: Only one oscilloscope channel is required Out A of M aster to #1 Oscilloscope I nput f or output monitoring in a 4:1 M UX operation. Out B of M aster to #2 Oscilloscope I nput Out A of Slave to #3 Oscilloscope I nput Sinew ave G enerator...
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