U440

U440-E3 VISHAY

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Document Number: 70251 S-04031—Rev. D, 04-Jun-01 www.vishay.com 8-1 Matched N-Channel JFET Pairs /C0080/C0082/C0079/C0068/C0085/C0067/C0084/C0032/C0083/C0085/C0077/C0077/C0065/C0082/C0089 Part Number VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IG Typ (pA) /C0106VGS1 – VGS2 /C0106 Max (mV) U440 –1 to –6 –25 4.5 –1 10 U441 –1 to –6 –25 4.5 –1 20 /C0070/C0069/C0065/C0084/C0085/C0082/C0069/C0083 /C0066/C0069/C0078/C0069/C0070/C0073/C0084/C0083 /C0065/C0080/C0080/C0076/C0073/C0067/C0065/C0084/C0073/C0079/C0078/C0083 /C0068Two-Chip Design /C0068High Slew Rate /C0068Low Offset/Drift Voltage /C0068Low Gate Leakage: 1 pA /C0068Low Noise /C0068High CMRR: 85 dB. /C0068Minimum Parasitics Ensuring Maximum High-Frequency Performance /C0068Improved Op Amp Speed, Settling Time Accuracy /C0068Minimum Input Error/Trimming Requirement /C0068Insignificant Signal Loss/Error Voltage /C0068High System Sensitivity /C0068Minimum Error with Large Input Signal /C0068Wideband Differential Amps /C0068High-Speed, Temp-Compensated, Single-Ended Input Amps /C0068High-Speed Comparators /C0068Impedance Converters /C0068/C0069/C0083/C0067/C0082/C0073/C0080/C0084/C0073/C0079/C0078 The U440/441 are matched pairs of JFETs mounted in a single TO-71 package. This two-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 hermetically-sealed TO-71 package is available with full military screening per MIL-S-19500 (see Military Information). For similar products in SO-8 packaging see the SST440/SST441 data sheet. For low-noise options, see the SST/U401 series data sheet. For low-leakage alternatives, see the U421/423 data sheet. TO-71 Top View G 1 D 1 G 2 D 2 /C0065/C0066/C0083/C0079/C0076/C0085/C0084/C0069/C0032/C0077/C0065/C0088/C0073/C0077/C0085/C0077/C0032/C0082/C0065/C0084/C0073/C0078/C0071/C0083 Notes a. Derate 2 mW//C0095C above 25/C0095C b. Derate 4 mW//C0095C above 25/C0095C

www.vishay.com 8-2 Document Number: 70251 S-04031— Rev. D, 04-Jun-01 /C0083/C0080/C0069/C0067/C0073/C0070/C0073/C0067/C0065/C0084/C0073/C0079/C0078/C0083/C0032/C0040/C0084/C0065/C0032/C0061/C0032/C0050/C0053/C0095/C0067/C0032/C0085/C0078/C0076/C0069/C0083/C0083/C0032/C0079/C0084/C0072/C0069/C0082/C0087/C0073/C0083/C0069/C0032/C0078/C0079/C0084/C0069/C0068/C0041 Limits U440 U441 Parameter Symbol Test Conditions Typa Min Max Min Max Unit Static Gate-Source Breakdown Voltage V(BR)GSS IG = –1 /C0109A, VDS = 0 V –35 –25 –25 Gate-Source Cutoff Voltage VGS(off) VDS = 10 V, ID = 1 nA –3.5 –1 –6 –1 –6 V Saturation Drain Currentb IDSS VDS = 10 V, VGS = 0 V 15 6 30 6 30 mA VGS = –15 V, VDS = 0 V –1 –500 –500 pA Gate Reverse Current IGSS TA = 125/C0095C –2 nA VDG = 10 V, ID = 5 mA –1 –500 –500 pA Gate Operating Current IG TA = 125/C0095C –0.3 nA Gate-Source Forward Voltage VGS(F) IG = 1 mA , VDS = 0 V 0.7 V Dynamic Common-Source Forward Transconductance gfs VDS = 10 V, ID = 5 mA 6 4.5 9 4.5 9 mS Common-Source Output Conductance gos VDS = 10 V, ID = 5 mA f = 1 kHz 70 200 200 /C0109S Common-Source Input Capacitance C iss VDS = 10 V, ID = 5 mA Common-Source Reverse Transfer Capacitance C rss VDS = 10 V, ID = 5 mA f = 1 MHz 1 pF Equivalent Input Noise Voltage en VDS = 10 V, ID = 5 mA f = 10 kHz 4 nV⁄ √Hz Matching Differential Gate-Source Voltage|V GS1 – V GS2 | VDG = 10 V, ID = 5 mA 6 10 20 mV Gate-Source Voltage Differential Change with Temperature /C0068|V GS1 – V GS2 | /C0068T VDG = 10 V, ID = 5 mA TA = –55 to 125/C0095C 20 /C0109V//C0095C Saturation Drain Current Ratioc IDSS1 IDSS2 VDS = 10 V, VGS = 0 V 0.97 Transconductance Ratioc gfs1 gfs2 VDS = 10 V, ID = 5 mA f = 1 kHz 0.97 Common Mode Rejection Ratio CMRR VDG = 5 to 10 V, ID = 5 mA 85 dB Notes a. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. NZFD b. Pulse test: PW /C0118300 /C0109s duty cycle /C01183%. c. Assumes smaller value in the numerator.

Document Number: 70251 S-04031— Rev. D, 04-Jun-01 www.vishay.com 8-3 /C0084/C0089/C0080/C0073/C0067/C0065/C0076/C0032/C0067/C0072/C0065/C0082/C0065/C0067/C0084/C0069/C0082/C0073/C0083/C0084/C0073/C0067/C0083/C0032/C0040/C0084/C0065/C0032/C0061/C0032/C0050/C0053/C0095/C0067/C0032/C0085/C0078/C0076/C0069/C0083/C0083/C0032/C0079/C0084/C0072/C0069/C0082/C0087/C0073/C0083/C0069/C0032/C0078/C0079/C0084/C0069/C0068/C0041 0 –10–8–2 –4 –6 0 4 16 20 81 2 Drain Current and Transconductance vs. Gate-Source Cutoff Voltage VGS(off) – Gate-Source Cutoff Voltage (V) IDSS @ VDS = 10 V, VGS = 0 V gfs @ VDS = 10 V, VGS = 0 V f = 1 kHz gfs IDSS gfs– Forward Transconductance (mS) Gate Leakage Current VDG – Drain-Gate Voltage (V) 0.1 pA 10 pA 1 pA IG(on) @ ID IGSS @ 25/C0095C TA = 125/C0095C 10 mA 1 mA TA = 25/C0095C IGSS @ 125/C0095C 1 mA ID = 10 mA – Gate LeakageIG 06 8 21 0 Output Characteristics VDS – Drain-Source Voltage (V) – Drain Current (mA)ID VGS = 0 V –0.2 V –0.4 V –0.6 V –0.8 V –1.0 V –1.2 V VGS(off) = –2 V 0 0.2 0.8 1 0.4 0.6 Output Characteristics VDS – Drain-Source Voltage (V) – Drain Current (mA)ID –0.2 V –0.4 V –0.6 V –0.8 V –1.0 V –1.2 V VGS = 0 VVGS(off) = –2 V 0 0.2 0.8 1 0.4 0.6 Output Characteristics VDS – Drain-Source Voltage (V) – Drain Current (mA)ID VGS = 0 V –1.5 V –0.5 V –2.5 V –1.0 V –3.0 V –3.5 V –2.0 V VGS(off) = –5 V 08 21 0 Output Characteristics VDS – Drain-Source Voltage (V) – Drain Current (mA)ID VGS = 0 V –0.5 V –2.5 V –2.0 V –3.0 V –3.5 V –1.0 V –1.5 V VGS(off) = –5 V 100 pA 1 nA 10 nA 100 nA – Saturation Drain Current (mA)IDSS

www.vishay.com 8-4 Document Number: 70251 S-04031— Rev. D, 04-Jun-01 /C0084/C0089/C0080/C0073/C0067/C0065/C0076/C0032/C0067/C0072/C0065/C0082/C0065/C0067/C0084/C0069/C0082/C0073/C0083/C0084/C0073/C0067/C0083/C0032/C0040/C0084/C0065/C0032/C0061/C0032/C0050/C0053/C0095/C0067/C0032/C0085/C0078/C0076/C0069/C0083/C0083/C0032/C0079/C0084/C0072/C0069/C0082/C0087/C0073/C0083/C0069/C0032/C0078/C0079/C0084/C0069/C0068/C0041 0 –0.4 –1.6 –2 0 –1.2 –1.6–0.4 –2 –0.8 –1.2 –0.8 0 –4 –5–1 –2 –3 –5–4–10 –2 –3 Transfer Characteristics VGS – Gate-Source Voltage (V) – Drain Current (mA)ID TA = –55/C0095C VGS(off) = –2 V 125/C0095C Transconductance vs. Gate-Source Voltage VGS – Gate-Source Voltage (V) TA = –55/C0095C 125/C0095C Transfer Characteristics TA = –55/C0095C 125/C0095C VGS – Gate-Source Voltage (V) TA = –55/C0095C Transconductance vs. Gate-Source Voltage – Drain Current (mA)ID VGS – Gate-Source Voltage (V) 125/C0095C 11 00.1 ID – Drain Current (mA) VGS(off) = –2 V A V – Voltage Gain Circuit Voltage Gain vs. Drain Current 1 10 100 200 160 120 VGS(off) = –2 V TA = 25/C0095C VGS(off) = –5 V On-Resistance vs. Drain Current ID – Drain Current (mA) R L /C004310 V ID Assume VDD = 15 V, VDS = 5 V A V /C0043 gfsR L 1 /C0041R Lgos VGS(off) = –5 V VDS = 10 V VGS(off) = –5 V VDS = 10 V VGS(off) = –2 V VDS = 10 V f = 1 kHz VGS(off) = –5 V VDS = 10 V f = 1 kHz 25/C0095C 25/C0095C 25/C0095C 25/C0095C rDS(on) – Drain-Source On-Resistance ( Ω ) gfs – Forward Transconductance (mS) gfs – Forward Transconductance (mS)

Document Number: 70251 S-04031— Rev. D, 04-Jun-01 www.vishay.com 8-5 /C0084/C0089/C0080/C0073/C0067/C0065/C0076/C0032/C0067/C0072/C0065/C0082/C0065/C0067/C0084/C0069/C0082/C0073/C0083/C0084/C0073/C0067/C0083/C0032/C0040/C0084/C0065/C0032/C0061/C0032/C0050/C0053/C0095/C0067/C0032/C0085/C0078/C0076/C0069/C0083/C0083/C0032/C0079/C0084/C0072/C0069/C0082/C0087/C0073/C0083/C0069/C0032/C0078/C0079/C0084/C0069/C0068/C0041 0 –16 –20–4 0 –12 –20–16–4 –8 –12 –8 100 0.1 100 1000 100 0.1 100 1000 Common-Source Input Capacitance vs. Gate-Source Voltage VDS = 0 V f = 1 MHz VGS – Gate-Source Voltage (V) VDS = 10 V Common-Source Reverse Feedback Capacitance vs. Gate-Source Voltage VDS = 0 V f = 1 MHz VGS – Gate-Source Voltage (V) – Reverse Feedback Capacitance (pF)C rss VDS = 10 V (mS) TA = 25/C0095C VDS = 10 V ID = 10 mA gig big Input Admittance f – Frequency (MHz) gis bis f – Frequency (MHz) (mS) TA = 25/C0095C VDS = 10 V ID = 10 mA bfg Forward Admittance –bfs gfs – Input Capacitance (pF)C iss 200 500 200 500 0.1 0.01 100 1000 100 0.1 100 1000 (mS) TA = 25/C0095C VDS = 10 V ID = 10 mA –brg –grg grg Reverse Admittance f – Frequency (MHz) –brs –grs (mS) TA = 25/C0095C VDS = 10 V ID = 10 mA gog, gos bog, bos Output Admittance f – Frequency (MHz) 200 500 200 500 VDS = 5 V VDS = 5 V –gfg

www.vishay.com 8-6 Document Number: 70251 S-04031— Rev. D, 04-Jun-01 /C0084/C0089/C0080/C0073/C0067/C0065/C0076/C0032/C0067/C0072/C0065/C0082/C0065/C0067/C0084/C0069/C0082/C0073/C0083/C0084/C0073/C0067/C0083/C0032/C0040/C0084/C0065/C0032/C0061/C0032/C0050/C0053/C0095/C0067/C0032/C0085/C0078/C0076/C0069/C0083/C0083/C0032/C0079/C0084/C0072/C0069/C0082/C0087/C0073/C0083/C0069/C0032/C0078/C0079/C0084/C0069/C0068/C0041 10 100 1 k 100 k 10 k 150 120 0.1 1 10 Equivalent Input Noise Voltage vs. Frequency ID = 1 mA VDS = 10 V f – Frequency (Hz) Output Conductance vs. Drain Current ID – Drain Current (mA) 125/C0095C 200 0 –10–8–2 160 0.1 11 0 200 160 120 120 80 80 –4 –6 On-Resistance and Output Conductance vs. Gate-Source Cutoff Voltage VGS(off) – Gate-Source Cutoff Voltage (V) rDS @ ID = 1 mA, VGS = 0 V gos @ VDS = 10 V, VGS = 0 V f = 1 kHz rDS gos Common-Source Forward Transconductance vs. Drain Current ID – Drain Current (mA) TA = –55/C0095C 125/C0095C VGS(off) = –5 V VDS = 10 V f = 1 kHz VGS(off) = –5 V VDS = 10 V f = 1 kHz ID = 10 mA TA = –55/C0095C 25/C0095C 25/C0095C en – Noise Voltage nV / Hz gos – Output Conductance (µS) rDS(on) – Drain-Source On-Resistance ( Ω ) gos – Output Conductance (µS) gfs – Forward Transconductance (mS)

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