Type 1776 Precision Decade Resistor Voltage Dividers
Page 1 of 2
Input Voltage Dividers for Digital Multimeters and Range-Switching Instruments
Introducing New Smaller Models at Lower Cost
The exceptional performance of this extensive family of
Type 1776 Precision Decade Resistor Voltage Dividers has
been achieved through the special
There are now 39 standard models in the expanded
family of Type 1776 precision resistor networks that include:
• 3, 4, and 5 - decade voltage
dividers with ratios from 10:1 to
10,000:1.
combination of advantages
provided by Caddock's Tetrinox®
resistance films. This advanced
film resistor technology provides
the performance characteristics
required by the precision input
signal circuits of both bench-type
and laboratory digital instruments.
V
IN
9M
V
IN
= V
= V
= V
= V
OUT1
OUT2
OUT3
OUT4
10
V
900K
90K
9K
IN
• 1,200 volts continuous ratings
and overvoltage to 2,000 volts.
100
V
IN
1,000
V
IN
• Many combinations of Ratio and
Absolute Tolerance, and Ratio
and Absolute Temperature
Coefficient.
10,000
1K
Schematic for
Model 1776-C68
In addition to requiring less
board space, these compact
For complete information on quantity price and delivery,
contact our Sales Office.
precision resistor networks deliver higher performance than
selected discrete resistor sets and thin-film networks.
Ratio Stability
Voltage
Resistance Values
Absolute Ratio
Tolerance Tolerance
Ratio
TC
ppm/°C Range
TC
Temp.
% Change in Ratio
Coef.
of Ratio
ppm/volt
Model
No.
Voltage
Fig. Rating
Abs. TC
ppm/°C
Load Shelf Over-
Life Life Voltage
%
%
Specifications:
R1
R2
R3
R
4
R5
7
1
2
2
3
4
5
6
(Numbers inside circles
reference columns in Model No.
table)
Range 1
90 K
90 K
90 K
9 K
9 K
9 K
900
900
900
1200
10 1200
1200
0.1
0.1
0.1
0.1
30
30
30
10
10
5
0.01 0.003 0.005
0.01 0.003 0.005
0.01 0.003 0.005
10
0.04
0.04
0.04
1776-C67
9 Meg
900 K
900 K
900 K
Range 1
Range 1
1776-C671 9 Meg
1776-C6715 9 Meg
0.05
0.05
10
1
Ratio Tolerance: Maximum
ratio error. (See the specific
Figures for the Ratio Definition).
1776-C68
9 Meg
900 K
900 K
900 K
90 K
90 K
90 K
9 K
9 K
9 K
1 K
1 K
1 K
10 1200
10 1200
10 1200
0.1
0.1
0.1
0.1
30
30
30
10
10
5
Range 1
Range 1
Range 1
0.04
0.04
0.04
0.01 0.003 0.005
0.01 0.003 0.005
0.01 0.003 0.005
1776-C681 9 Meg
1776-C6815 9 Meg
0.05
0.05
2
RatioTemperature Coefficient:
1776-C48
1776-C481
1776-C4815
1776-C61
10 Meg 1.1111M 101.01K 10.01K 1.0001K 11 1200
0.1
0.1
30
30
30
10
10
5
Range 1
Range 1
Range 1
0.03
0.03
0.03
0.01 0.003 0.005
Maximum ratio TC error. (See
the specific Figures for the
Ratio Definition).
Range 1: -40°C to +85°C.
Range 2: 0°C to +70°C.
11 1200
11 1200
0.05
0.05
0.01
0.005
0.005
10 Meg 1.1111M 101.01K 10.01K 1.0001K
10 Meg 1.1111M 101.01K 10.01K 1.0001K
0.1
0.1
0.003
0.01 0.003
9 Meg
900 K
900 K
90 K
90 K
9 K
9 K
900
900
6
6
1200
1200
0.1
0.1
0.1
30
30
10
10
Range 2
Range 2
0.1
0.1
0.01 0.005 0.01
0.01 0.005 0.01
1776-C611 9 Meg
1776-C62 9 Meg
0.05
Range 2
Range 2
900 K
900 K
900 K
900 K
900 K
900 K
900 K
900 K
900 K
900 K
900 K
90 K
90 K
90 K
90 K
90 K
90 K
90 K
90 K
90 K
90 K
90 K
9 K
9 K
9 K
9 K
9 K
9 K
9 K
9 K
9 K
9 K
10 K
1 K
1 K
1 K
1 K
1 K
900
900
1 K
1 K
1 K
N/A
6
6
6
7
7
3
3
3
3
3
4
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
0.1
0.1
0.1
0.05
0.02
0.25
0.1
30
30
30
50
50
50
50
50
50
50
30
10
10
10
50
50
50
50
50
50
50
5
0.1
0.1
0.1
0.5
0.5
0.3
0.2
0.3
0.2
0.2
0.02
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.04 0.02 0.04
0.04 0.02 0.04
0.04 0.02 0.04
0.02 0.01 0.02
0.04 0.02 0.04
0.02 0.01 0.02
0.02 0.01 0.02
0.01 0.005 0.01
3
Voltage Coefficient of Ratio
1776-C621 9 Meg
1776-C6217 9 Meg
1776-C742 9 Meg
(ppm/volt): R1 in series with any
combination of R2, R3, R4, and
R5, 100 volts to rated voltage.
Range 2
0.1
0.25
0.1
Range 2
Range 2
1776-C74
1776-232
1776-23
9 Meg
9 Meg
9 Meg
9 Meg
9 Meg
9 Meg
9 Meg
4
Load Life: Ratio stability of
Range 2
Range 2
Range 2
0.25
0.1
0.25
0.1
resistance under full load at
+70°C, rated voltage applied to
R1 in series with any combination
of R2, R3, R4, and R5 for 2000 hrs.
1776-242
1776-24
0.25
0.25
0.25
+0, -0.5
0.25
0.1
Range 2
Range 2
Range 2
5
1776-241
1776-105
0.05
0.1
Shelf Stability of Ratio: Six
months at shelf conditions.
1776-C10
9 Meg
900 K
900 K
900 K
900 K
90 K
10 K
N/A
9
1200
+0, -0.5
0.1
30
10
Range 2
Range 2
Range 2
0.02
0.01 0.005 0.01
6
Overvoltage: Maximum voltage
1776-C105 9 Meg
90 K
90 K
90 K
10 K
10 K
10 K
10 K
10 K
10 K
10 K
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
9
2
2
1
1
1
1
8
8
8
8
5
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
750
+0, -0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.1
0.1
0.05
0.1
30
30
30
30
30
30
30
30
30
30
50
25
5
0.02
0.02
0.02
0.2
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.02 0.01 0.02
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.01 0.005 0.01
0.04 0.02 0.04
0.02 0.01 0.02
of 1.67 times rated DC voltage.
Volts DC or peak AC applied to
R1 and any combination of R2,
R3, R4, and R5 in series with R1
for 10 seconds.
1776-1
9 Meg
9 Meg
10
10
25
10
10
5
Range 2
1776-14
1776-8
9.9 Meg 90 K
9.9 Meg 90 K
9.9 Meg 90 K
9.9 Meg 90 K
0.1
Range 2
Range 2
1776-9
N/A
0.1
0.02
0.02
0.02
0.1
7
Range 2
Range 2
Voltage Rating: DC or RMS
1776-91
1776-912
1776-C4
1776-C44
N/A
0.05
0.02
0.25
0.1
AC voltage applied to R1 in
series with any combination of
R2, R3, R4, and R5.
N/A
Range 2
Range 2
10 Meg 1.1111M 101.01K 10.01K 1.0001K
10 Meg 1.1111M 101.01K 10.01K 1.0001K
10
10
10
50
25
0.1
Storage Temperature: -40°C
to +85°C.
Range 2
1776-C441 10 Meg 1.1111M 101.01K 10.01K 1.0001K
0.1
0.05
0.25
0.25
0.1
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
1776-C34
1776-C532
1776-C53
1776-C542
1776-C54
1776-C541
10 Meg 1.1111M 101.01K 10.01K 1.0001K
0.25
0.25
0.5
900 K
900 K
900 K
900 K
900 K
90 K
90 K
90 K
90 K
90 K
9 K
9 K
9 K
9 K
9 K
900
900
1 K
1 K
1 K
N/A
N/A
N/A
N/A
N/A
0.4
5
5
5
5
750
750
750
750
0.1
0.25
0.1
0.1
0.25
0.1
25
25
25
25
15
25
15
15
0.3
0.4
0.3
0.3
0.02 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.02
0.1
0.05
Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Sales and Corporate Office
1717 Chicago Avenue
Riverside, California 92507-2364
Phone: (951) 788-1700
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
Fax: (541) 496-0408
Fax: (951) 369-1151
© 2004 Caddock Electronics, Inc.
28_IL118.1004