models t16l08 and t16lr8 vishay techno document number: 68011 www.vishay.com revision: 01-aug-05 1 dual-in-line, 8 bit r/2r ladder networks applications 8 bit, r/2r ladder networks for d/a and a/d converter with bi-polar or cmos switches electrical specifications ladder network accuracy: 1/2 lsb from 0 c to + 70 c. ladder network resistance tolerance: 2 %. temperature coefficient of resistance: 100 ppm/c. operating temperature range: 0 c to + 70 c. power dissipation rating at + 70 c ambient: 50 mw for individual resistor and 1.8 watts total package rating. standard resistance values (r): 25 kilohms, 50 kilohms, 100 kilohms. schematics t16l08 123 4 5678 16 15 14 13 12 11 10 9 r2 = r r4 = r r6 = r r8 = r r10 = r r12 = r r14 = r r1 = 2r r3 = 2r r5 = 2r r7 = 2r r9 = 2r r11 = 2r r13 = 2r r15 = 2r r16 = 2r r1 = 2r r3 = 2r r5 = 2r r7 = 2r r9 = 2r r11 = 2r r13 = 2r r15 = 2r t16lr8 1 2 3 4 5 6 7 8 r16 = 2r 16 15 14 13 12 11 10 9 r2 = r r4 = r r6 = r r8 = r r10 = r r12 = r r14 = r ratio match tolerance r1/r2 = 2 1 %. r1/r3 = 1 1 %. r1/r4 = 2 1 %. r1/r5 = 1 1 %. r1/r6 = 2 1 %. r1/r7 = 1 1 %. r1/r8 = 2 1 %. r9/r10 = 2 0.5 %. r11/r12 = 2 0.4 %. r15/r13 = 1 0.2 %. r15/r14 = 2 0.2 %. dimensional configurations in inches [millimeters] 0.065 0.020 [1.65 0.508] 0.020 0.002 [0.508 0.051] 0.060 0.005 [1.52 0.127] 0.100 0.005 [2.54 0.127] non-cumulative 0.045 0.020 [1.14 0.508] 0.845 0.030 [21.46 0.762] 0.170 0.020 [4.32 0.508] 0.300 0.010 [7.62 0.254] 0.010 0.002 [0.254 0.051] 0? to 15? 0.260 0.005 [6.60 0.127] how to order t16l08 or t16lr8 104 example: 104 = r = 100 kilohms. reference: 2r = 200 kilohms. e3 model resistance value (ohms) lead termination first two digits ar e significant, thir d digit signifies number of zeros to follow. e3 = snag 95/5
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