300144_07 Datasheet, PDF (1/5 Pages) Vishay Siliconix – High Precision Voltage Divider Resistors with TCR Tracking to 0.5 ppm/°C and Tolerance Match to 0.005 % (50 ppm)

300144, 300145
Vishay Foil Resistors
High Precision Voltage Divider Resistors
with TCR Tracking to 0.5 ppm/°C and
Tolerance Match to 0.005 % (50 ppm)
Any value at any ratio available within resistance range
INTRODUCTION
Vishay Bulk Metal^® foil technology outperforms all other
technologies available today for applications that require
high precision and high stability.
Models 300144 and 300145 offer low TCR (both absolute
and tracking), excellent load life stability, tight tolerance,
excellent ratio stability, low thermal EMF, low current noise
and non sensitivity to ESD - all in one package.
Model 300145 is a pair-of 300144 elements back to back in
a single molded package.
By taking advantage of the overall stability and reliability of
Vishay Bulk Metal foil resistors, designers can significantly
reduce circuit errors and greatly improve overall circuit
performances.
Our application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications. Please
contact us.
FEATURES
• Temperature coefficient of resistance (TCR):
absolute:
± 2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C ref.)
tracking: 0.5 ppm/°C
Pb-free
Available
RoHS*
COMPLIANT
• Tolerance: absolute and matching to 0.005 %
• Power rating: 0.2 W at 70 °C, for the entire resistive
element R1 and R2, divided proportionally between the
two elements
• Ratio stability: < 0.001 % (10 ppm) 0.2 W at 70 °C for
2000 h
• Maximum working voltage: 200 V
• Electrostatic discharge (ESD) above 25 000 V
• Non inductive, non capacitive design
• Rise time: 1 ns without ringing
• Current noise: < - 40 dB
• Thermal EMF: 0.05 µV/°C typical
• Voltage coefficient: < 0.1 ppm/V
• Non inductive: < 0.08 µH
• Non hot spot design
• Terminal finishes available: lead (Pb)-free
tin/lead alloy
• Any value available within resistance range (e.g. 1K2345)
• Prototype samples available from 48 h. For more
information, please contact [e-mail]
• For better performances see 300144Z, 300145Z (Z-Foil)
datasheet
APPLICATIONS
• Instrumentation amplifiers
• Bridge networks
• Differential amplifiers
V1
• Military
V2
• Space
• Medical
• Automatic test equipment
• Down-hole (high temperature)
R2
R1
-
+
R1
R2
Vout
300144
300145
TABLE 1 - MODELS 300144 AND 300145 SPECIFICATIONS
MODEL
300144
300145
RESISTANCE
RATIO
1:1
4:1
10:1
> 10:1
ABSOLUTE TCR
(- 55 °C to + 125 °C, + 25 °C Ref.)
TYPICAL AND MAX. SPREAD
± 2 ppm/°C ± 3 ppm/°C
TCR TRACKING
0.5 ppm/°C
1.0 ppm/°C
1.0 ppm/°C
1.5 ppm/°C
* Pb containing terminations are not RoHS compliant, exemptions may apply
TOLERANCE
ABSOLUTE
± 0.005%
± 0.005%
± 0.01%
± 0.01%
MATCH
0.005%
0.005%
0.01%
0.01%
Document Number: 63045
Revision: 21-Nov-07
For any questions, contact: [e-mail]
www.vishay.com
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