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Analog Power Supply

This the +/- 15V power supply. It powers the op-amp in the MDAC attenuator using TPS7A3301 regulators.

The PCB files are in Eagle format.

Photos

Schematic

Layout

BoM

Part name RS part Farnell Part Mouser Part Description EVM Part name Notes
C1/C2 571319 667-EEU-FC1V182S Large input cap, 7.5mm/18mm -
C5/C6 - 80-C1206C104K5R 1206, 0.1uF, X5R or X7R -
C7/C8 7900610 81-GRM31CR61H106KA2L 1206, 47uF, X5R or X7R, 2220 package C1
C3A/B 7236657 81-GRM31MR71H105KA88 1206, 1uF, X5R or X7R C3 NR/SS
C4A/B 2644141 80-C1206C103K1R 1206, 10nF/0.01uF, X5R or X7R C4 CFF/CBYP
C9-14 7900610 81-GRM31CR61H106KA2L 1206, 22-15uF, multiple, 2220 package C5-C9 Total at least 47uF
C15/C16 571408 or 571290 667-EEU-FC1E102 Large output cap, 5mm/13mm C10
R1A/B 667-ERJ-8ENF1244V 1.24M R1 Value for -15VDC
R2A/B 667-ERJ-8ENF1053V 105K R2 Value for -15VDC
B1/2 8148800 1336500 625-DFL1508S-E3/77 VISHAY - DFL1508S-E3/45, BRIDGE RECTIFIER
IC1/IC2 595-TPS7A3301KC LDO Voltage Regulators -3 to -36V,-1A,Ultra Low Noise,High PSRR
TR1 2239216 Block FL6/FL8, Talema/Amveco 5/7VA or standard EI-42
F1 7874164 576-64900001039 5x20mm Fuseholder 6.3A 250V
AC 403932 5.08mm Pitch 2 Way 1 Row Straight PCB Header AC in
KK1/KK2 532-513002B25G Heatsinks, SK104-PAD
LED - - - Any 1206 LED
RLED - - - To match LEDs
X2 Power out
Fuse 530-5ST63-R 5x20mm, 63mA