AH118-89PCB900

AH118 Product Features • 60 – 3500 MHz • +24.7 dBm P1dB • +40.5 dBm Output IP3 • 20.4 dB Gain @ 900 MHz • 16.5 dB Gain @ 1900 MHz • +5V Single Positive Supply • Lead-free/Green/RoHScompliant SOT-89 Package The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier Product Description The AH118 is a high dynamic range driver amplifier in a low-cost surface mount package. The InGaP/GaAs HBT is able to achieve high performance across a broad range with +40.5 dBm OIP3 and +24.7 dBm of compressed 1dB power. The AH118 is available in a lead-free/green/RoHScompliant SOT-89 package. All devices are 100% RF and DC tested. The AH118 is targeted for use as a driver amplifier in wireless infrastructure where high linearity and medium power is required. Internal biasing allows the AH118 to maintain high linearity over temperature and operate directly off a single +5V supply. This combination makes the device an excellent candidate for transceiver line cards in current and next generation multi-carrier 3G base stations. Functional Diagram GND 4 1 RF IN 2 GND 3 RF OUT Applications • Final stage amplifiers for Repeaters • Mobile Infrastructure • DBS / WLL / W-LAN • Defense / Homeland Security Function Input / Base Output / Collector Ground Pin No. 1 3 2, 4 Specifications (1) Parameter Operational Bandwidth Test Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (2) IS-95A Channel Power @ -45 dBc ACPR Typical Performance (3) Units MHz MHz dB dB dB dBm dBm dBm dBm dB mA V 140 Min 60 13.5 Typ 1900 16.5 12 20 +24.7 +40.5 +18 +16.7 4.3 160 +5 Max 3500 Parameter Frequency S21 - Gain S11 - Input R.L. S22 - Output R.L. Output P1dB Output IP3 IS-95A Channel Power @ -45 dBc ACPR, Units MHz dB dB dB dBm dBm dBm dBm dB 4.0 900 20.4 -15 -12 +24.2 +40 +18.2 Typical 1900 16.5 -12 -20 +24.7 +40.5 +18 +16.7 4.3 4.8 +5 V @ 160 mA 2140 16.3 -15 -16 +24.7 +40.5 +23 +39.5 wCDMA Channel Power @ -45 dBc ACLR wCDMA Channel Power @ -45 dBc ACLR, 2140 MHz Noise Figure Operating Current Range Device Voltage Noise Figure Supply Bias 175 3. Typical parameters reflect performance in a tuned application circuit: Vsupply = +5 V, 160 mA, +25 °C 1. Test conditions unless otherwise noted: 25ºC, Vsupply = +5 V, in tuned application circuit. 2. 3OIP measured with two tones at an output power of +11 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature RF Input Power (continuous) Device Voltage Device Current Junction Temperature -40 to +85 °C -65 to +150 °C +15 dBm +6 V 220 mA +250 °C Rating Ordering Information Part No. AH118-89G AH118-89PCB900 AH118-89PCB1900 AH118-89PCB2140 Description High Linearity InGaP HBT Amplifier (lead-free/green/RoHS-compliant SOT-89 package) 900 MHz Evaluation Board 1900 MHz Evaluation Board 2140 MHz Evaluation Board Operation of this device above any of these parameters may cause permanent damage. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 1 of 8 May 2006 AH118 40 The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier S-Parameters (VDevice = +5 V, ICC = 160 mA, 25 °C, unmatched 50 ohm system) 1.0 Typical Device Data S11 6 0. 0.8 2. 0 35 30 25 Gain (dB) 20 15 0 3. 2. 0 DB(|S[2,1]|) DB(GMax) 0. 4 6 0. Swp Max 6GHz 1.0 Gain / Maximum Stable Gain S22 Swp Max 6GHz 0.8 0 4. 5.0 0. 2 10.0 10.0 10 -10.0 -10 0 0.5 1 1.5 Frequency (GHz) 2 2.5 .4 -0 .4 -0 .0 -2 -0 .6 -0.8 -0 .6 Swp Min 0.01GHz -0.8 .0 -2 -1.0 Notes: The gain for the unmatched device in 50 ohm system is shown as the trace in black color. For a tuned circuit for a particular frequency, it is expected that actual gain will be higher, up to the maximum stable gain. The maximum stable gain is shown in the dashed red line. The impedance plots are shown from 50 – 6000 MHz, with markers placed at 0.5 – 6.0 GHz in 0.5 GHz increments. S-Parameters (VDevice = +5 V, ICC = 160 mA, 25 °C, unmatched 50 ohm system, calibrated to device leads) Freq (MHz) S11 (dB) S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang) 50 100 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 -2.69 -2.16 -1.91 -1.77 -1.60 -1.45 -1.40 -1.25 -1.20 -1.17 -1.13 -1.11 -1.05 -0.99 -0.93 -0.95 -0.92 -173.38 -177.19 178.30 172.47 166.83 161.09 155.39 149.59 143.79 137.57 132.05 126.72 121.50 115.58 110.41 105.30 100.11 21.74 19.63 18.22 17.13 15.99 14.97 13.84 12.76 11.71 10.63 9.75 8.88 8.00 7.31 6.52 5.73 5.05 153.70 150.82 148.19 135.41 121.91 109.02 97.28 86.83 76.95 68.15 59.55 52.22 45.09 37.40 30.66 23.51 17.07 -31.02 -30.31 -29.87 -29.83 -29.49 -29.18 -28.70 -28.63 -28.30 -27.94 -27.63 -27.51 -27.06 -27.02 -26.78 -26.66 -26.61 11.24 7.90 5.01 4.07 2.79 2.11 1.64 -0.09 -1.34 -4.47 -7.00 -8.43 -11.00 -14.19 -18.24 -20.10 -23.28 -7.02 -5.57 -5.06 -4.77 -4.60 -4.44 -4.26 -4.14 -3.97 -4.00 -3.86 -3.84 -3.62 -3.55 -3.46 -3.34 -3.30 -1.0 -148.17 -162.45 -173.51 177.87 171.65 166.08 160.40 155.01 149.63 144.03 139.02 134.24 129.30 124.42 119.42 114.26 109.29 Device S-parameters are available for download off of the website at: http://www.wj.com Application Circuit PC Board Layout Circuit Board Material: .062” total thickness with a .014” Getek top RF layer, 4 layers (other layers added for rigidity), 1 oz copper, Microstrip line details: width = .026”, spacing = .026” The silk screen markers ‘A’, ‘B’, ‘C’, etc. and ‘1’, ‘2’, ‘3’, etc. are used as placemarkers for the input and output tuning. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 2 of 8 May 2006 -3 .0 -3 .0 -5 Swp Min 0.01GHz -5. 0 -4 .0 -5. 0 0 2 -0 . -10.0 5 2 -0 . 10.0 0.2 1.0 2.0 5.0 0.8 3.0 0.4 0.6 4.0 0.2 1.0 0.8 2.0 3.0 5.0 0.4 0.6 4.0 0 0 0. 4 0 3. 0 4. 5.0 -4 .0 0. 2 10.0 AH118 Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, 1 MHz spacing) The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier 900 MHz Application Circuit (AH118-89PCB900) 900 MHz 20.4 dB 15 dB 12 dB +24.2 dBm +40 dBm +18.2 dBm 4 dB +5 V 160 mA S21 vs. Frequency ID=C7 C=8.2 pF C7 should be placed at the silk screen marker 'C' on the WJ evaluation board. The capacitor should be placed 6.1° @ 0.9GHz from pin 1 of the AH118 NET="AH118" Vcc = +5 V All passive components are of size 0603 unless otherwise noted. The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. Component R1 is shown in the silkscreen but is not used for this configuration. L2 - the 0 ohm resistor - can be removed (with a thru line) in the final circuit layout. ID=C1 C=1e5 pF size 1206 ID=C2 C=1000 pF size 0805 DIODE1 5.6 V ID=C3 C=56 pF IND ID=L1 L=33 nH size 0805 ID=C5 C=100 pF ID=C4 C=100 pF ID=L2 R=0 Ohm Channel Power (@-45 dBc ACPR, IS-95 9 channels fwd) ID=L3 L=2.7 nH ID=C9 C=2 pF C9 should be placed at the silk screen marker '7' on the WJ evaluation board. The capacitor should be placed 15.8° @ 0.9GHz from pin 3 of the AH118. Noise Figure Device / Supply Voltage Quiescent Current ACPR vs. Channel Power 22 21 S 2 1 (d B ) 20 19 -40 IS-95, 9 Ch. Fwd, ±885 kHz offset, 30 kHz Meas BW, 900 MHz -50 -60 18 +25°C -40°C +85°C 17 800 -70 850 900 Frequency (MHz) 950 1000 12 13 14 15 16 17 18 19 Output Channel Power (dBm) S22 vs. Frequency S11 vs. Frequency 0 -5 S 1 1 (d B ) -10 -15 -20 -25 -30 800 +25°C -40°C +85°C 0 -5 S 2 2 (d B ) -10 -15 -20 -25 -30 800 +25°C -40°C +85°C 850 900 Frequency (MHz) 950 1000 850 900 Frequency (MHz) 950 1000 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 3 of 8 May 2006 AH118 Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, 1 MHz spacing) The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier 1900 MHz Application Circuit (AH118-89PCB1900) 1900 MHz 16.8 dB 12 dB 20 dB +24.7 dBm +40.5 dBm +18 dBm 4.3 dB +5 V 160 mA +5V C AP ID =C 1 C =10 000 0 p F D1 D iod e 5.6 V C AP ID =C 2 C =10 00 p F CA P ID= C 3 C= 5 6 p F All passive com pone nts are of size 0603 unless otherwise note d. The d iode D1 is used as over-voltage protection on the e va luation. b oard s. It is not specifi cally requ ired in the fina l circuit layout in a s ystem using a DC regul ator. Com ponen t R1 is shown in the si lkscre en but is not u sed fo r this configuration. L 3-- 0 ohm resistor can be rem oved from th e final layout. P OR T P =1 Z =50 O h m CA P ID =C 4 C= 5 6 p F IND ID= L2 L= 4.7 n H IN D ID =L 1 L =1 8 nH C AP ID =C 5 C =56 pF POR T P=2 Z= 5 0 Oh m Channel Power (@-45 dBc ACPR, IS-95 9 channels fwd) Noise Figure Device / Supply Voltage Quiescent Current C AP ID =C 7 C =2.7 pF S UB CK T ID = U1 N ET ="AH 11 8" R ES ID =L3 R =0 O hm CA P ID= C 9 C= 1.8 pF C7 should b e place d a t the silk screen m a rker 'A' on the W J evaluation board or 4.6 deg @ 1.8 4GH z from pi n 1 of the AH11 8 C9 should be plac ed at the silk screen m arker '5' on the e va luation bo ard o r 23 deg @ 1.9 G Hz from pin 3 of AH11 8. Gain S11, S22 vs. Frequency ACPR vs. Channel Power -40 IS-95, 9 Ch. Fwd, ±885 kHz offset, 30 kHz Meas BW, 1900 MHz 18 0 S11,S22 (dB) -5 -10 -15 S22 17 16 15 14 13 1800 1850 1900 Frequency (MHz) 1950 2000 -50 S11 -60 -20 -25 1.8 -70 1.85 1.9 Frequency (GHz) 1.95 2 12 13 14 15 16 17 18 19 Output Channel Power (dBm) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 4 of 8 May 2006 AH118 Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, 1 MHz spacing) The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier 2140 MHz Application Circuit (AH118-89PCB2140) 2140 MHz 16.3 dB 15 dB 16 dB +24.7 dBm +40.5 dBm +16.7 dBm NET="AH118" Vcc = +5 V All passive components are of size 0603 unless otherwise noted. The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. L3 - the 0 ohm resistor - can be removed (with a thru line) in the final circuit layout. ID=C1 C=1e5 pF size 1206 ID=C3 C=1000 pF size 0805 DIODE1 5.6 V ID=C2 C=56 pF ID=L1 L=18 nH ID=C4 C=56 pF ID=L2 C=1.5 pF ID=L3 R=0 Ohm ID=C5 C=56 pF wCDMA Channel Power (@-45 dBc ACLR, 3GPP, TM 1+64 DPCH) Noise Figure Device / Supply Voltage Quiescent Current 4.8 dB +5 V 160 mA S21 vs. Frequency ID=C6 C=1.8 pF C6 should be placed at the silk screen marker "F" on the WJ evaluation board. The capacitor should be placed 32.6° @ 2.14GHz from pin 1 of the AH118 ID=C9 C=1.2 pF C9 should be placed at the silk screen marker '4' on the WJ evaluation board. The capacitor should be placed 20.5° @ 2.14GHz from pin 3 of the AH118. ACLR vs. Channel Power -35 -40 A C L R (d B c ) -45 -50 -55 3GPP W-CDMA, Test Model 1+64 DPCH, ±5 MHz offset, 2140 MHz 18 17 S 2 1 (d B ) 16 15 14 +25°C -40°C +85°C 13 2110 -60 2130 2150 2170 12 13 14 15 16 17 18 Frequency (MHz) S11 vs. Frequency Output Channel Power (dBm) S22 vs. Frequency 0 +25°C -40°C +85°C 0 -5 S 2 2 (d B ) -10 -15 +25°C -40°C +85°C -5 S 1 1 (d B ) -10 -15 -20 2110 2130 2150 2170 -20 2110 2130 2150 2170 Frequency (MHz) Frequency (MHz) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 5 of 8 May 2006 AH118 Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier 70 MHz Reference Design Vcc = +5 V G a in (d B ) 22 -10 S 1 1 , S 2 2 (d B ) 70 MHz 24.2 dB 17 dB 16 dB +23.6 dBm +41 dBm Gain / Return Loss 26 0 C=100000 pF DB(|S(1,1)|) (R) 24 DB(|S(2,2)|) (R) DB(|S(2,1)|) (L) 5.6 V C=1000 pF -5 The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. L=180 nH NET="AH118" L=47 nH C=1000 pF C=1000 pF 20 -15 18 -20 C=100 pF Noise Figure Supply Voltage Current 4.8 dB +5 V 160 mA 16 50 60 70 Frequency (MHz) 80 90 -25 150 MHz Reference Design Vcc = +5 V Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) G a in (d B ) 22 -10 S 1 1 , S 2 2 (d B ) 150 MHz 23 dB 21 dB 14 dB +23.5 dBm +40 dBm Gain / Return Loss 24 0 C=100000 pF DB(|S(1,1)|) (R) 23 DB(|S(2,2)|) (R) DB(|S(2,1)|) (L) 5.6 V C=1000 pF -5 The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. L=82 nH NET="AH118" C=82 pF C=1000 pF 21 -15 20 -20 L=18 nH Noise Figure Supply Voltage Current 4.9 dB +5 V 160 mA 19 120 130 140 150 160 Frequency (MHz) 170 180 -25 340 MHz Reference Design +5V Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) G a in (d B ) 20 -5 S 1 1 , S 2 2 (d B ) 340 MHz 20.6 dB 14 dB 13 dB +24 dBm +41.4 dBm Gain / Return Loss 22 5 C=1e5 pF DB(|S(1,1)|) (R) 21 DB(|S(2,1)|) (L) DB(|S(2,2)|) (R) 0 5.6 V The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. C=1000 pF R=1.8 Ohm NET="AH118" L=100 nH C=1000 pF 19 -10 L=8.2 nH C=1000 pF 18 -15 C=18 pF L=15 nH Noise Figure Supply Voltage Current 5.1 dB +5 V 160 mA C=5.6 pF 17 260 280 300 320 340 360 Frequency (MHz) 380 400 420 -20 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 6 of 8 May 2006 AH118 Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier 450 MHz Reference Design Vcc = +5 V G a in (d B ) 21 -10 S 1 1 , S 2 2 (d B ) 450 MHz 22 dB 15 dB 19 dB +24 dBm +40 dBm 5.7 dB +5 V 160 mA Gain / Return Loss 23 DB(|S(1,1)|) (R) DB(|S(2,1)|) (L) DB(|S(2,2)|) (R) C=1e5 pF 0 5.6 V C=1000 pF 22 -5 The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. L=22 nH 20 -15 C=1000 pF NET="AH118" L=3.3 nH Noise Figure Supply Voltage Current 19 -20 C=27 pF C=1000 pF 18 400 420 440 460 Frequency (MHz) 480 500 -25 2450 MHz Reference Design Vcc = +5 V Gain / Return Loss ID=C1 C=1e5 pF size 1206 ID=C2 C=1000 pF Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) 2450 MHz 14.4 dB 14 dB 15 dB +25 dBm +38 dBm +5 V 160 mA 16 5 All passive components are of size 0603 unless otherwise noted. The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. Component R1 is shown in the silkscreen but is not used for this configuration. ID=D1 5.6 V 14 0 S11, S22 (dB) ID=C3 C=56 pF size 0805 ID=L1 L=18 nH size 0805 Gain (dB) 12 -5 L3 - the 0 ohm resistor - can be removed (with a thru line) in the final circuit layout. The center of this component should be placed .170" away from the center of C6. ID=L2 L=5.6 nH NET="AH118" 10 -10 CAP ID=C5 C=56 pF 8 -15 ID=C4 C=56 pF ID=C6 C=1.2 pF ID=L3 R=0 Ohm ID=C7 C=1.2 pF The center of this component should be placed .200" away from pin 3. Supply Voltage Current DB(|S(1,1)|) (R) 6 2.3 2.4 DB(|S(2,1)|) (L) 2.5 Frequency (GHz) DB(|S(2,2)|) (R) -20 2.6 The center of this component should be placed .050" away from pin 1. 3500 MHz Reference Design Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (+11 dBm / tone, Df=1 MHz) G a in (d B ) 11 -10 S 1 1 , S 2 2 (d B ) 3500 MHz 11 dB 14 dB 10 dB +23.5 dBm +38.5 dBm 5.0 dB +5 V 160 mA Gain / Return Loss 13 DB(|S(1,1)|) (R) DB(|S(2,1)|) (L) DB(|S(2,2)|) (R) Vcc = +5 V 0 All passive components are of size 0603 unless otherwise noted. The diode D1 is used as over-voltage protection on the evaluation boards. It is not specifically required in the final circuit layout in a system using a DC regulator. Component R1 is shown in the silkscreen but is not used for this configuration. ID=D1 5.6 V ID=C1 C=100000 pF size 1206 ID=C2 C=1000 pF 12 -5 ID=C3 C=56 pF size 0805 ID=L1 L=18 nH size 0805 The center of this component should be placed .170" away from the center of C6. ID=L2 L=6.8 nH NET="AH118" 10 -15 Noise Figure Supply Voltage Current 9 -20 ID=C4 C=56 pF ID=C6 C=0.2 pF ID=C7 C=.8 pF 8 3.4 3.45 3.5 Frequency (GHz) 3.55 3.6 -25 The center of this component should be placed .050" away from pin 1. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 7 of 8 May 2006 AH118 The Communications Edge TM Product Information ¼ Watt, High Linearity InGaP HBT Amplifier This package is lead-free/Green/RoHS-compliant. It is compatible with both lead-free (maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes. The plating material on the leads is NiPdAu. AH118-89G Mechanical Information Outline Drawing Product Marking The component will be marked with an “AH118G” designator with an alphanumeric lot code on the top surface of the package. The obsolete tin-lead package is marked with an “AH118” or “E099” designator followed by an alphanumeric lot code. Tape and reel specifications for this part are located on the website in the “Application Notes” section. MSL / ESD Rating Land Pattern ESD Rating: Value: Test: Standard: Class 1A Passes between 250 and 500V Human Body Model (HBM) JEDEC Standard JESD22-A114 MSL Rating: Level 3 at +260 °C convection reflow Standard: JEDEC Standard J-STD-020 Mounting Config. Notes 1. Ground / thermal vias are critical for the proper performance of this device. Vias should use a .35mm (#80 / .0135”) diameter drill and have a final plated thru diameter of .25 mm (.010”). 2. Add as much copper as possible to inner and outer layers near the part to ensure optimal thermal performance. 3. Mounting screws can be added near the part to fasten the board to a heatsink. Ensure that the ground / thermal via region contacts the heatsink. 4. Do not put solder mask on the backside of the PC board in the region where the board contacts the heatsink. 5. RF trace width depends upon the PC board material and construction. 6. Use 1 oz. Copper minimum. 7. All dimensions are in millimeters (inches). Angles are in degrees. Thermal Specifications Parameter Operating Case Temperature (1) Thermal Resistance (2), Rth Junction Temperature (3), Tj MTTF vs. GND Tab Temperature 100000 Rating -40 to +85 °C 92 °C / W 159 °C 10000 Notes: 1. The amplifier can be operated at 105 °C case temperature for up to 1000 hours over its lifetime without degradation in performance and will not degrade device operation at the recommended maximum 85 °C case temperature for the rest of its lifetime. 2. The thermal resistance is referenced from the junction-to-case at a case temperature of 85 °C. 3. This corresponds to the typical biasing condition of +5V, 160 mA at an 85°C case temperature. A minimum MTTF of 1 million hours is achieved for junction temperatures below 247 °C. 1000 100 60 70 80 90 100 110 120 Tab Temperature (°C) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 8 of 8 May 2006