DSMZ Datasheet, PDF (1/5 Pages) Vishay Siliconix – Ultra High Precision Bulk Metal® Z-Foil Surface Mount Voltage Divider

DSMZ (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Bulk Metal^® Z-Foil Surface Mount Voltage
Divider, TCR Tracking of < 0.1 ppm/°C, PCR of ± 5 ppm
at Rated Power and Stability of ± 0.005 % (50 ppm)
FEATURES
T _{Any value at any ratio available within resistance range}
INTRODUCTION
C _{Bulk Metal® Z-Foil Technology out-performs all other resistor}
technologies available today for applications that require
ultra-high precision and ultra-high stabilitly.
U _{The Z-Foil technology provides a significant reduction of the}
resistive element’s sensitivity to ambient temperature
D ^{variations (TCR) and to self heating when power is applied}
(power coefficient).
The DSMZ offers low TCR (both absolute and tracking), low
PCR, excellent load life stability, tight tolerance match,
O _{excellent ratio stability, low thermal EMF, and low current}
noise - all in one package.
The DSMZ surface mount divider provides a matched pair of
R _{Bulk Metal® Z-Foil Resistors in a small epoxy molded}
package. The electrical specification of this integrated
construction offers improved performance and better real
P _{estate utilization over discrete resistors and matched pairs.}
Our Application Engineering Department is available to advise
and make recommendations. For non-standard technical
requirements and special applications, please contact us.
D _{TABLE 1 - RESISTANCE VALUES AND TOLERANCES1)}
E ^{RESISTANCE VALUES}
100 Ω - 10 kΩ per resistor²⁾
ABSOLUTE TOLERANCE
EACH RESISTOR
± 0.02 %, ± 0.05 %, ± 0.1 %
V RESISTANCE
TOLERANCE MATCH
0.01 %, 0.02 %, 0.05 %
TCR
Absolute: (typical and maximum
spread): ± 0.2 ± 2.0 ppm/°C
O _{- 55 °C to + 125 °C}
(+ 25 °C reference)
Tracking: (maximum)
For R1/R2 = 1
0.5 ppm/°C
For 1 < R1/R2 ≤ 10 1.0 ppm/°C
R_{For 10 < R1/R2 ≤ 100 2.0 ppm/°C}
Notes
1. Tighter performances are available
P _{2. 100 Ω to 20 kΩ per resistor available in DSM}
IM^{FIGURE 1 - SCHEMATIC}
• Temperature Coefficient of Resistance (TCR):
Absolute: ± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical
Pb-free
Available
(- 55 °C to + 125 °C, + 25 °C Ref.)
Tracking: 0.1 ppm/°C typical
RoHS*
COMPLIANT
• Power Coefficient Tracking
“ΔR due to self heating”: ± 5 ppm at Rated Power
• Power Rating at 70 °C: Entire Package: 0.1 W
Each Resistor: 0.05 W
• Tolerance: Absolute: ± 0.02 %; Match: 0.01 %
• Ratio Stability: 0.005 % (0.05 W at 70 °C, 2000 hours)
• Resistance Range: 100 Ω to 10 kΩ per resistor
• Large Variety of Resistance Ratios: 1:100
• Electrostatic Discharge (ESD) above 25 000 V
• Short Time Overload ≤ 0.005 %
• Non Inductive, Non Capacitive Design
• Rise Time: 1.0 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
• Terminals: silver coated copper alloy
• For better performances, please contact Application
Engineering
APPLICATIONS
R2
• Instrumentation amplifiers
• Bridge networks
R1
• Differential amplifiers
Vin
-
Vout
• Ratio arms in bridge circuits
+
• Medical and test equipment
DSMZ
• Military
• Airborne etc.
FIGURE 2 - POWER DERATING CURVE
110
100
90
80
70
60
50
40
30
20
R₁
OPTION 1
SAME OHMIC VALUE,
SAME ABSOLUTE TOLERANCE
R₂
OPTION 2
RESISTOR PAIR
R₁/R₂ - DIFFERENT VALUES
10
0
- 60 - 40
- 55
- 20 0 20 40 60 80 100
70
Ambient Temperature (°C)
120 140
125
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63121
Revision: 06-Aug-07
For any questions, contact: [e-mail]
www.vishay.com
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