click to buy information furnished by linear integrated systems and micross components is believed to be accurate and reliable. however, no responsibility is assumed for its use; nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of linear integrated systems. features ? direct ? replacement ? for ? siliconix ? U440 ? high ? cmrr ? cmrr ?? 85db ? low ? gate ? leakage ? i gss ? ? 1 ? pa ? absolute ? maximum ? ratings ? 1 ? @ ? 25c ? (unless ? otherwise ? noted) ? maximum ? temperatures ? storage ? temperature ?\ 65c ? to ? +150c ? operating ? junction ? temperature ?\ 55c ? to ? +135c ? maximum ? power ? dissipation ? continuous ? power ? dissipation ? (total) ? 500mw ? maximum ? currents ? gate ? current ? 50ma ? maximum ? voltages ? gate ? to ? drain ?\ 25v ? gate ? to ? source ?\ 25v ? gate ? to ? gate ? 50v ? ?? ?? ?? ?? matching ? characteristics ? @ ? 25c ? (unless ? otherwise ? stated) ? symbol ? characteristic ? min ? typ ? max ? units ? conditions ? |v gs1 ? ? ? v gs2 ? | ? differential ? gate ? to ? source ? cutoff ? voltage ??? 10 ? mv ? v dg ? = ? 10v, ? i d ? = ? 5ma ?????????? ? ? |v gs1 ? ? ? v gs2 ? | ? / ? ? t ? ? differential ? gate ? to ? source ? cutoff ?? voltage ? change ? with ? temperature ? ? 20 ? ? v/c ? v dg ? = ? 10v, ? i d ? = ? 5ma ?????? t a ? = ?\ 55c ? to ? +125c ? i dss1 ?? / ? i dss2 ? ? gate ? to ? source ? saturation ? current ? ratio ? ? 0.07 ? ? % ? v ds ? = ? 10v, ? v gs ? = ? 0v ? g fs1 ? / ? g fs2 ? ? forward ? transconductance ? ratio 2 ?? 0.97 ? ? % ? v ds ? = ? 10v, ? i d ? = ? 5ma, ? f ? = ? 1khz ? cmrr ? common ? mode ? rejection ? ratio ?? 85 ? ? db ? v dg ? = ? 5 ? to ? 10v, ? i d ? = ? 5ma ?????????? ? electrical ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) symbol ? characteristics ? min. ? typ. ? max. ? units ? conditions ? bv gss ? gate ? to ? source ? breakdown ? voltage ?\ 25 ?? ? v ? i g ? = ?\ 1a, ? v ds ? = ? 0v ? v gs ( off ) ? gate ? to ? source ? cutoff ? voltage ?\ 1 ?\ 3.5 ?\ 6 ? v ? v ds ? = ? 10v, ? i d = ? 1na ? i dss ? gate ? to ? source ? saturation ? current ? 6 ? 15 ? 30 ? ma ? v ds ? = ? 10v, ? v gs = ? 0v ? i gss ? gate ? leakage ? current 3 ??\ 1 ?\ 500 ? pa ? v gs ? = ?\ 15v, ? v ds ? = ? 0v ? i g ? gate ? operating ? current ?? \ 1 ?\ 500 ? pa ? v dg ? = ? 10v, ? i d ? = ? 5ma ? g fs ? forward ? transconductance ? 4.5 ? 6 ? 9 ? ms ? v ds ? = ? 10v, ? i d = ? 5ma, ? f ? = ? 1khz ? g os ? output ? conductance ?? 70 ? 200 ? s ? c iss ? input ? capacitance ?? 3 ?? pf ? v ds ? = ? 10v, ? i d ? = ? 5ma, ? f ? = ? 1mhz ? c rss ? reverse ? transfer ? capacitance ?? 1 ?? pf ? e n ? equivalent ? input ? noise ? voltage ?? 4 ?? nv/ hz ? v ds ? = ? 10v, ? i d ? = ? 5ma, ? f ? = ? 10khz ? notes: ? 1. ? absolute ? maximum ? ratings ? are ? limiting ? values ? above ? which ? serviceability ? may ? be ? impaired 2. ? pulse ? test: ? pw ?? 300s ? duty ? cycle ?? 3% ? 3. ? assumes ? smaller ? value ? in ? numerator ? the U440 is a tightly matched monolithic dual n-channel jfet U440 monolithic dual n-channel jfet U440 applications: ? wideband differential amps ? high-speed,temp-compensated single- ended input amps ? high-speed comparators ? impedance converters and vibrations detectors . the U440 are monolithic dual jfets mounted in a single to-71 package. the monolithic dual chip design reduces parasitics and gives better performance at very high frequencies while ensuring extremely tight matching. these devices are an excellent choice for use as wideband differential amplifiers in demanding test and measurement applications. the U440 is a direct replacement for discontinued siliconix U440. the hermetically sealed to-71 is well suited for military applications. (see packaging information). linear s y stems re p laces discontinued siliconix U440 available packages: U440 in to-71 U440 available as bare die please contact micross for fu ll package and die dimensions: email: chipcomponents@micross.com web: www.micross.com/distribution.aspx to-71 (top view)
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