300190Z Datasheet, PDF (1/6 Pages) Vishay Siliconix – Ultra High Precision Z-Foil Voltage Divider and Network Resistor with TCR Tracking to 0.1 ppm/°C and Resistance Match to ± 0.005% (50 ppm)

2R, 3R, 4R (Z-Foil Technology)
Vishay Foil Resistors
Ultra High Precision Z-Foil Voltage Divider and Network Resistor with
TCR Tracking to 0.1 ppm/°C and Resistance Match to ± 0.005% (50 ppm)
FEATURES
• Resistance Range each resistor: 1Ω to 150KΩ
(Any ohmic value ratio is available within
resistance range)
• Non Inductive/Capacitive design
• Low Temperature Coefficient of Resistance
(TCR) Absolute:
± 0.05 ppm/°C (Industrial range)
± 0.2 ppm/°C (MIL range), Tracking 0.1 ppm/°C
RoHS
T^COMPLIANT
Any value at any tolerance available within resistance range
INTRODUCTION
C • Power Coefficient “ΔR due to self heating”: 5 ppm at rated
power
• Tolerance: Absolute and Resistance Match to 0.005%
• Resistance Ratio Stability: at 0.05W @ + 25°C to 0.001%
The 2R, 3R, 4R Resistor Networks are the designers first
choice for ultra high precision, stable and reliable
Voltage Divider or Network.
The Z-Foil Technology provides a significant reduction of the
resistive components sensitivity to ambient temperature
U _{variations (TCR) and applied power changes, self-heating}
(PCR). 0.05 ppm/°C Absolute TCR removes errors due to
temperature gradients.
The 2R, 3R, 4R provide a unique, inherent combination
D ^{of performance characteristics resulting in excellent}
performance and high reliability, satisfying the needs of
today’s expanding requirements.
The availability of low absolute TCR and low PCR, provides a
good cost solution for the variability of other components
when compiling the total error budget.
O _{Our Application Engineering Department is available to}
advise and to make recommendations for non-standard
technical requirements and special applications, please do
not hesitate to contact us.
R _{FIGURE 1 - POWER DERATING CURVE}
200% ^{- 55°C}
P ^175%
+ 70°C
Double Rated Power
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short time overload ≤ 0.002%
• Power Rating at + 125°C: 0.3W
• Thermal EMF: 0.05µV/°C
• Non hot spot design
• Current Noise: < - 40dB
• Rise time: 1ns without ringing
• Non Inductive: < 0.08µH
• Voltage Coefficient < 0.1 ppm/V
• For better performances please contact us
• Terminal Finishes available:
Lead (Pb)-free
Tin/Lead Alloy
APPLICATIONS
• Instrumentation Amplifiers
• Bridge Networks
• Differential Amplifiers
• Military, Airborne and Space
150%
• EB Applications
125%
Rated Power
100%
75%
50%
25%
Safe operation
for < 150 ppm
ΔR after 2000
hours load-life
0
FIGURE 2 - TYPIC_EAL TCR^WCURVE Z-FOIL ^{-75 -50 -25}
0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200
Ambient Temperature (°C)
N^{+ 500}
+ 400
+ 300
+ 200
ΔR ^{+ 100}
R
0
(ppm)- ₁₀₀
0.05 ppm/°C
• Down-Hole (high temperature)
• Medical
• Automatic Test Equipment (ATE)
FIGURE 3 - TRIMMING TO VALUES
CONCEPTUAL ILLUSTRATION)
Current Path
After Trimming
Current Path
Before Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
- 200
- 300
- 400
- 500
- 0.1 ppm/°C
- 0.16 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
and Increasing
Resistance
- 55 - 25 0 + 25 + 60 + 75 + 100 + 125
NOTE: Foil shown in black, etched spaces in white
Ambient Temperature (°C)
SALES
• AMERICAS: [e-mail]
• ASIA/JAPAN: [e-mail]
• UK/HOLLAND/SCANDINAVIA: [e-mail]
• GERMANY/CZECH REPUBLIC/AUSTRIA: [e-mail] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: [e-mail] • ISRAEL: [e-mail]
www.vishay.com
1
For technical questions, contact: [e-mail]
Document Number: 63114
Revision: 08-Aug-06