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| RMK VD Vishay Thin Film Custom, Low Impedance Voltage Dividers FEATURES * Outstanding Stability * Low Impedance Voltage Dividers * Can Operate at High Temperatures * Available in Many Package Configurations Due to the outstanding stability of ULTRAFILM(R) resistors and to a specific know how in the field of computer aided design, we are able to produce ultraprecision low impedance voltage dividers. They are available in chip form or hermetic packages. They can operate at temperatures as high as + 200C. TYPICAL PERFORMANCE v l TCR TOL ABS - ABS 100 TRACKING - RATIO - THROUGH HOLE SCHEMATICS Vn/Vref ratios are specified as follows: Ratio accuracy: 300ppm in the range - 55C to + 150C Ratio stability: 100ppm after 1000 hrs. @ + 125C R1 2 k R2 2 k V2 R3 1 k V1 V3 Vref R4 4 k R5 1 k For these four networks the ratios Vn/Vref are specified as follows: Tolerance at + 25C: < 100ppm Tolerance in the range - 25C, + 180C: < 200ppm Tolerance at + 25C after 400 hrs. at + 185C < 200ppm Vref R5 1 k R4 1 k R3 1 k R2 500 V2 R1 500 V1 0 Vref R6 750 R5 125 R4 150 R3 150 R2 125 V2 R1 750 V1 0 V3 V4 V5 V4 V3 Vref R4 200 R3 100 R2 75 V2 R1 0 Vref R4 1.5 k R3 75 R2 75 V2 R1 1.5 k V1 0 4 k V1 V3 V3 VISHAY THIN FILM * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 * ITALY + 39.2.300.11919 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA: (610) 407-4800 FAX: (610) 640-9081 Document Number: 60050 Revision 27-Apr-01 www.vishay.com 117 RMK VD Vishay Thin Film Custom, Low Impedance Voltage Dividers STANDARD ELECTRICAL SPECIFICATIONS TEST MATERIAL Absolute Tolerance: SPECIFICATIONS ULTRAFILM(R) < 100ppm < 200ppm Stability: R Ratio Operating Temperature Range 100ppm after 1000 hrs. at + 125C - 55C to + 180C (with voltage ratio reversible drifts less than 100ppm) Noise < - 35dB typical Voltage ratio drifts less than 100ppm after 1000 hrs. at + 155C + 25C - 25C, + 180C CONDITIONS THROUGH HOLE Shelf Life Stability MECHANICAL SPECIFICATIONS Resistive Element Substrate Material Passivation Bonding Pads Packages Nichrome Al2 O3 or Si Silicon nitride Al Hermetic side braze or LCC or SO How to Order Consult Factory for ordering information VISHAY THIN FILM * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 * ITALY + 39.2.300.11919 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA: (610) 407-4800 FAX: (610) 640-9081 www.vishay.com 118 Document Number: 60050 Revision 27-Apr -01 |
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