3
Data Device Corporation
www.ddc-web.com
DDC-49530/49590/55688/57470/57471/73089
D-08/07-0
DDC-49530 RESISTOR VALUES (11.8 V INPUTS)
SEE FIGURE 4
TABLE 1. THIN-FILM RESISTOR NETWORK
VALUES
SYMBOL ABS
VALUE (ΩΩ)
TOL
(%)
REL TO REL
VALUE (ΩΩ)
TOL
(%)
TCR(PPM)
TABLE 1. THIN-FILM RESISTOR NETWORK
VALUES (CONT)
SYMBOL ABS
VALUE (ΩΩ)
TOL
(%)
REL TO REL
VALUE (ΩΩ)
TOL
(%)
TCR(PPM)
R1 70.8 k 0.1 50
R2
R3
R1
R4
12 k
12 k
0.02
0.02
3
3
R4 R1 70.8 k 0.02 3
R5 R1 70.8 k 0.02 3
R6 R1 35.4 k 0.02 3
R7 R6 6.9282 k 0.02 3
R8 R6 5.0718 k 0.02 3
R9 R11 5.0718 k 0.02 3
R10 R11 6.9282 k 0.02 3
R11 R1 70.8 k 0.02 3
DDC-57470 RESISTOR VALUES (11.8 V INPUTS)
SEE FIGURE 4
R1 70.8 k 0.1 50
R2
R3
R1
R4
12 k
12 k
0.02
0.02
4
4
R4 R1 70.8 k 0.02 4
R5 R1 70.8 k 0.02 4
R6 R1 35.4 k 0.02 4
R7 R6 6.9282 k 0.02 4
R8 R6 5.0718 k 0.02 4
R9 R11 5.0718 k 0.02 4
R10 R11 6.9282 k 0.02 4
R11 R1 70.8 k 0.02 4
DDC-49590 RESISTOR VALUES (90 V INPUTS)
SEE FIGURE 4
R1 270 k 0.1 50
R2 R1 6 k 0.02 3
R3 R4 6 k 0.02 3
R4 R1 270 k 0.02 3
R5 R1 270 k 0.02 3
R6 R1 135 k 0.02 3
R7 R6 3.4641 k 0.02 3
R8 R6 2.5359 k 0.02 3
R9 R11 2.5359 k 0.02 3
R10 R11 3.4641 k 0.02 3
R11 R1 270 k 0.02 3
DDC-57471 RESISTOR VALUES (90 V INPUTS)
SEE FIGURE 4
R1 270 k 0.1 50
R2 R1 6 k 0.02 4
DDC-55688 RESISTOR VALUES (2.0 V INPUTS)
SEE FIGURE 2
R1 10 k 1.0 — — — —
R2 10 k 1.0 — — — —
R3 R4 6 k 0.02 4
R4 R1 270 k 0.02 4
R5 R1 270 k 0.02 4
R6 R1 135 k 0.02 4
R7 R6 3.4641 k 0.02 4
R8 R6 2.5359 k 0.02 4
R9 R11 2.5359 k 0.02 4
R10 R11 3.4641 k 0.02 4
R11 R1 270 k 0.02 4
DDC-73089 RESISTOR VALUES (2.0 V INPUTS)
SEE FIGURE 3
R1 70 k 0.1 50
R2 R1 70 k 0.02 2
R3 R1 70 k 0.02 2
R4 R1 70 k 0.02 2
R5 R1 70 k 0.02 2
R6 R1 70 k 0.02 2
R7 R1 70 k 0.02 2
R8 R1 70 k 0.02 2
Notes for Table 1:
Understanding Table 1 relative %
Using DDC-49530 thin film as the example:
“R2” Relative to “R1” means the ratio of R2 to R1 is critical and must be main-
tained to .02%.
R1 tolerance specification is 0.1% of 70.8k and an actual value measured must
be used for the relative values.
“R2” value (12k) must be offset to be relative to R1.
Example:
R1 (70.8K) actually measured = 70.8354K = (Within 0.1% spec)
R2 is relative to R1
R2 required = 12K
R2 Offset calculation is as follows:
R2 = Relative resistor actual value x (Resistor value to be calculated / Relative
resistor value)
R2 = 70.8354K x (12K / 70.8K) = 12.006K
R2 installed must be 12.006k +/- 0.02%
Next relative value to calculate is R4 (Note that the data sheet listing is in alpha
order, not working order)
R4 (70.8K) is relative to R1
R1 (70.8K) actually measured = 70.8354K
R4 required = 70.8K
R4 Offset calculation is as follows:
R4 = Relative resistor actual value x (Resistor value to be calculated / Relative
resistor value)
R4 = 70.8354K x (70.8K / 70.8K) = 70.8354K
R4 installed must be 70.8354K +/- 0.02%
Next relative value to calculate is R3, which is relative to R4.
R4 must be measured for calculation
R3 offset must be calculated
Installed R3 must be within 0.02% of calculated offset value.