www.fairchildsemi.com KM4170, KM4270, KM4470 Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifiers Features at 2.7V Description • • • • • • • • The KM4170 (single), KM4270 (dual), and KM4470 (quad) are ultra-low cost, low power, voltage feedback amplifiers. At 5V, the KM4X70 family uses only 160µA of supply current per amplifier and are designed to operate from a supply range of 2.5V to 5.5V (±1.25 to ±2.75). The input voltage range exceeds the negative and positive rails. The KM4X70 family of amplifiers offer high bipolar performance at a low CMOS prices. They offer superior dynamic performance with 4.9MHz small signal bandwidths and 5.3V/µs slew rates. The combination of low power, high bandwidth, and rail-to-rail performance make the KM4X70 amplifiers well suited for battery-powered communication/ computing systems. Large Signal Frequency Response Vs = 5V Applications Portable/battery-powered applications PCMCIA, USB Mobile communications, cellular phones, pagers Notebooks and PDA’s Sensor Interface A/D buffer Active filters Signal conditioning Portable test instruments Vo = 4Vpp Vo = 2Vpp 0.01 0.1 1 10 Frequency (MHz) Output Swing vs. Load 1.35 RL = 10kΩ Output Voltage (0.27V/div) • • • • • • • • • Vo = 1Vpp Magnitude (1dB/div) 136µA supply current per amplifier 4.9MHz bandwidth Output swings to within 20mV of either rail Input voltage range exceeds the rail by >250mV 5.3V/µs slew rate 16mA output current 21nV/√Hz input voltage noise KM4170: directly replaces OPA340, OPA343, and TLV2461 in single supply applications and available in SC70-5 and SOT23-5 package options • KM4270: directly replaces MAX4126, OPA2340, LMV822 and TLV2462 in single supply applications and available in SOIC-8 and MSOP-8 package options • KM4470: directly replaces MAX4129, OPA4340, LMV824 and TLV2464 in single supply applications and available in TSSOP-14 package option RL = 1kΩ RL = 75Ω 0 RL = 100Ω RL = 200Ω RL = 75/100Ω -1.35 -2.0 0 2.0 Input Voltage (0.4V/div) REV. 5 December 2002 DATA SHEET KM4170, KM4270, KM4470 KM4170 SOT23-5 -Vs 2 +In 3 5 +Vs - 4 -In Out 1 -Vs 2 +In 3 + 1 + Out SC70-5 5 +Vs 4 -In 8 +Vs 7 Out2 6 -In2 5 +In2 - KM4270 MSOP SOIC Out1 1 -In1 2 +In1 3 -Vs 4 + + 8 +Vs Out1 1 7 Out2 -In1 2 6 -In2 +In1 3 5 +In2 -Vs 4 + + KM4470 TSSOP 2 Out1 1 14 -In1 2 13 +In1 3 12 +Vs 4 11 +In2 5 10 -In2 6 9 REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET Absolute Maximum Ratings Parameter Supply Voltages Maximum Junction Temperature Storage Temperature Range Lead Temperature, 10 seconds Operating Temperature Range, recommended Input Voltage Range Iout Continuous Min. 0 – -65 – -40 -Vs -0.5 -30 Max. +6 +175 +150 +260 +85 +Vs +0.5 +30 Unit V °C °C °C °C V mA Max. Unit Electrical Specifications (Vs = +2.7V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ; unless otherwise noted) Parameter AC Performance -3dB Bandwidth1 Full Power Bandwidth Gain Bandwidth Product Rise and Fall Time Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion THD Input Voltage Noise DC Performance Input Offset Voltage2 Average Drift Input Bias Current2 Average Drift Power Supply Rejection Ratio2 Open Loop Gain Quiescent Current Per Channel2 Input Characteristics Input Resistance Input Capacitance Input Common Mode Voltage Range Common Mode Rejection Ratio2 Output Characteristics Output Voltage Swing2 Conditions Min. G = +1, Vo = 0.02Vpp G = +2, Vo = 0.2Vpp G = +2, Vo = 2Vpp 4.9 3.7 1.4 2.2 163 <1 5.3 -72 -72 0.03 21 1V step 1V step 1V step 1Vpp, 10kHz 1Vpp, 10kHz 1Vpp, 10kHz >10kHz -6 DC RL = 10kΩ DC, Vcm = 0V to Vs RL = 10kΩ to Vs/2 RL = 1kΩ to Vs/2 RL = 200Ω to Vs/2 Output Current Power Supply Operating Range Typ. 55 0.5 5 90 32 83 90 136 MHz MHz MHz MHz ns % V/µs dBc dBc % nV/√Hz +6 420 190 mV µV/°C nA pA/°C dB dB µA 12 2 -0.25 to 2.95 81 MΩ pF V dB 0.06 to 2.64 0.02 to 2.68 0.05 to 2.63 0.11 to 2.52 ±16 2.5 2.7 V V V mA V 55 5.5 Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined from tested parameters. Notes: 1. For G = +1, Rf = 0. 2. For RL = 10kΩ, KM4170, KM4270, and KM4470 are 100% tested at 25°C. REV. 5 December 2002 3 DATA SHEET KM4170, KM4270, KM4470 Electrical Specifications (Vs = +5V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ; unless otherwise noted) Parameter AC Performance -3dB Bandwidth1 Full Power Bandwidth Gain Bandwidth Product Rise and Fall Time Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion THD Input Voltage Noise DC Performance Input Offset Voltage2 Average Drift Input Bias Current2 Average Drift Power Supply Rejection Ratio2 Open Loop Gain Quiescent Current Per Channel2 Input Characteristics Input Resistance Input Capacitance Input Common Mode Voltage Range Common Mode Rejection Ratio2 Output Characteristics Output Voltage Swing2 Conditions Min. G = +1, Vo = 0.02Vpp G = +2, Vo = 0.2Vpp G = +2, Vo = 2Vpp -8 DC, Vcm = 0V to Vs RL = 10kΩ to Vs/2 RL = 1kΩ to Vs/2 RL = 200Ω to Vs/2 Output Current Power Supply Operating Range Max. 4.3 3.0 2.3 2.0 110 <1 9 -73 -75 0.03 22 1V step 1V step 1V step 1Vpp, 10kHz 1Vpp, 10kHz 1Vpp, 10kHz >10kHz DC RL = 10kΩ Typ. 40 1.5 15 90 40 60 80 160 Unit MHz MHz MHz MHz ns % V/µs dBc dBc % nV/√Hz +8 450 235 mV µV/°C nA pA/°C dB dB µA 12 2 -0.25 to 5.25 85 MΩ pF V dB 0.08 to 4.92 0.04 to 4.96 0.07 to 4.9 0.14 to 4.67 ±30 2.5 2.7 V V V mA V 58 5.5 Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined from tested parameters. Notes: 1. For G = +1, Rf = 0. 2. For RL = 10kΩ, KM4170 is 100% tested at 25°C. Package Thermal Resistance Package 5 lead SOT23 5 lead SC70 8 lead SOIC 8 lead MSOP 14 lead TSSOP 4 θJA 256°C/W 331.4°C/W 152°C/W 206°C/W 100°C/W REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET Typical Operating Characteristics (Vs = +2.7V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ; unless otherwise noted) Inverting Frequency Response Vs = +5V Normalized Magnitude (1dB/div) Normalized Magnitude (1dB/div) Non-Inverting Freq. Response Vs = +5V Vo = 0.2Vpp G=1 Rf = 0 G=2 Rf = 5kΩ G = 10 Rf = 5kΩ G=5 Rf = 5kΩ 0.01 0.1 1 Vo = 0.2Vpp G = -2 Rf = 5kΩ G = -10 Rf = 5kΩ G = -5 Rf = 5kΩ 0.01 10 0.1 Frequency (MHz) Normalized Magnitude (1dB/div) Normalized Magnitude (1dB/div) G = 10 Rf = 5kΩ G=5 Rf = 5kΩ 0.01 0.1 10 Inverting Frequency Response G=1 Rf = 0 G=2 Rf = 5kΩ 1 Frequency (MHz) Non-Inverting Frequency Response Vo = 0.2Vpp G = -1 Rf = 5kΩ 1 Rf = 5kΩ G = -2 G = -1 G = -10 G = -5 0.01 10 0.1 1 10 Frequency (MHz) Frequency (MHz) Frequency Response vs. CL Frequency Response vs. RL CL = 100pF Rs = 100Ω CL = 50pF Rs = 0Ω Magnitude (1dB/div) Magnitude (1dB/div) Vo = 0.05V CL = 20pF Rs = 0 CL = 10pF Rs = 0 + Rs - CL 5kΩ RL = 1kΩ RL = 10kΩ RL = 200Ω RL = 50Ω RL 5kΩ 0.01 0.1 1 0.01 10 0.1 Frequency (MHz) 1 10 Frequency (MHz) Large Signal Frequency Response Open Loop Gain & Phase vs. Frequency 140 Magnitude (1dB/div) Vo = 4Vpp Vo = 2Vpp Open Loop Gain (dB) 120 Vo = 1Vpp |Gain| RL = 10kΩ Vs = 5V |Gain| No load 100 80 60 0 40 -45 -90 20 0 Phase RL = 10kΩ Phase No load 101 103 -135 -20 0.01 0.1 1 Frequency (MHz) REV. 5 December 2002 10 Open Loop Phase (deg) Vs = 5V -180 100 102 104 105 106 107 108 Frequency (Hz) 5 DATA SHEET KM4170, KM4270, KM4470 Typical Operating Characteristics (Vs = +2.7V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ; unless otherwise noted) 2nd & 3rd Harmonic Distortion 2nd Harmonic Distortion vs. Vo -20 -20 Vo = 1Vpp -40 3rd RL = 200Ω 3rd RL = 1kΩ 2nd RL = 200Ω -30 Distortion (dB) Distortion (dBc) -30 3rd RL = 10kΩ -50 -60 -70 -80 2nd RL = 1kΩ 2nd RL = 10kΩ -40 -50 50kHz -60 50kHz -70 10kHz, 20kHz -80 -90 10kHz -90 0 20 40 60 80 0.5 100 1 Frequency (kHz) 3rd Harmonic Distortion vs. Vo 2 2.5 CMRR 0 -10 -30 -20 50kHz -40 -50 CMRR (dB) Distortion (dB) 1.5 Output Amplitude (Vpp) -20 100kHz -60 20kHz -70 -30 -40 -50 -60 -70 10kHz -80 -80 -90 -90 0.5 1 1.5 2 10 2.5 100 Output Amplitude (Vpp) 1000 10000 100000 Frequency (Hz) PSRR Output Swing vs. Load 1.35 0 RL = 10kΩ Output Voltage (0.27V/div) -10 -20 PSRR (dB) 100kHz -30 -40 -50 -60 -70 -80 -90 RL = 1kΩ RL = 75Ω 0 RL = 100Ω RL = 200Ω RL = 75/100Ω -1.35 10 100 1000 10000 -2.0 100000 Frequency (Hz) 0 2.0 Input Voltage (0.4V/div) Input Voltage Noise Pulse Resp. vs. Common Mode Voltage 50 1.2V offset 45 0.6V offset 40 35 No offset -0.6V offset -1.2V offset nV/√Hz Output Voltage (0.5V/div) 55 30 25 20 15 10 5 0 Time (1µs/div) 0.1k 1k 10k 100k 1M Frequency (Hz) 6 REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET Application Information Overdrive Recovery General Description Overdrive of an amplifier occurs when the output and/or input ranges are exceeded. The recovery time varies based on whether the input or output is overdriven and by how much the ranges are exceeded. The KM4X70 will typically recover in less than 50ns from an overdrive condition. Figure 3 shows the KM4X70 amplifier family in an overdriven condition. The KM4X70 family of amplifiers are single supply, general purpose, voltage-feedback amplifiers. They are fabricated on a complementary bipolar process, feature a rail-to-rail input and output, and are unity gain stable. The typical non-inverting circuit schematic is shown in Figure 1. 6.8µF + R11 R2 In + 0.01µF Out KM4100 R12 - Output Input Voltage (0.5V/div) +Vs G=5 Input Rout Time (10µs/div) Rf Figure 3: Overdrive Recovery Rg Driving Capacitive Loads Figure 1: Typical Non-inverting Configuration Input Common Mode Voltage The common mode input range extends to 250mV below ground and to 250mV above Vs, in single supply operation. Exceeding these values will not cause phase reversal. However, if the input voltage exceeds the rails by more than 0.5V, the input ESD devices will begin to conduct. The output will stay at the rail during this overdrive condition. If the absolute maximum input voltage (700mV beyond either rail) is exceeded, externally limit the input current to ±5mA as shown in Figure 2. The Frequency Response vs. CL plot, illustrates the response of the KM4X70 amplifier family. A small series resistance (Rs) at the output of the amplifier, illustrated in Figure 4, will improve stability and settling performance. Rs values in the Frequency Response vs. CL plot were chosen to achieve maximum bandwidth with less than 2dB of peaking. For maximum flatness, use a larger Rs. Capacitive loads larger than 50pF require the use of Rs. + Rs Rf Vin RL Rg Vo + 10kΩ Figure 2: Circuit for Input Current Protection Power Dissipation The maximum internal power dissipation allowed is directly related to the maximum junction temperature. If the maximum junction temperature exceeds 150°C, some performance degradation will occur. If the maximum junction temperature exceeds 175°C for an extended time, device failure may occur. REV. 5 December 2002 CL Figure 4: Typical Topology for driving a capacitive load Driving a capacitive load introduces phase-lag into the output signal, which reduces phase margin in the amplifier. The unity gain follower is the most sensitive configuration. In a unity gain follower configuration, the KM4X70 amplifier family requires a 510Ω series resistor to drive a 100pF load. 7 DATA SHEET KM4170, KM4270, KM4470 Layout Considerations General layout and supply bypassing play major roles in high frequency performance. Fairchild has evaluation boards to use as a guide for high frequency layout and as aid in device testing and characterization. Follow the steps below as a basis for high frequency layout: • Include 6.8µF and 0.01µF ceramic capacitors • Place the 6.8µF capacitor within 0.75 inches of the power pin • Place the 0.01µF capacitor within 0.1 inches of the power pin • Remove the ground plane under and around the part, especially near the input and output pins to reduce parasitic capacitance • Minimize all trace lengths to reduce series inductances Refer to the evaluation board layouts shown in Figure 6 for more information. When evaluating only one channel, complete the following on the unused channel: 1. Ground the non-inverting input 2. Short the output to the inverting input Figure 5a: KM4170 Evaluation Board Schematic Evaluation Board Information The following evaluation boards are available to aid in the testing and layout of this device: Eval Bd Description Products KEB002 Single Channel, Dual Supply, 5 and 6 lead SOT23 KM4170IT5 KEB011 Single Channel, Dual Supply, 5 and 6 lead SC70 KM4170IS5 KEB006 Dual Channel, Dual Supply, 8 lead SOIC KM4270IC8 KEB010 Dual Channel, Dual Supply, 8 lead MSOP KM4270IM8 KEB012 Quad Channel, Dual Supply, 14 lead TSSOP KM4470IP14 Evaluation board schematics are shown in Figures 5a, 5b, 5c and layouts are shown in Figure 6a through Figure 6l. Figure 5b: KM4270 Evaluation Board Schematic 8 REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET Figure 5c: KM4470 Evaluation Board Schematic REV. 5 December 2002 9 DATA SHEET KM4170, KM4270, KM4470 KM4170 Evaluation Board Layout 10 Figure 6a: KEB002 (top side) Figure 6b: KEB002 (bottom side) Figure 6c: KEB011 (top side) Figure 6d: KEB011 (bottom side) REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET KM4270 Evaluation Board Layout Figure 6e: KEB006 (top side) Figure 6f: KEB006 (bottom side) Figure 6g: KEB010 (top side) Figure 6h: KEB010 (bottom side) REV. 5 December 2002 11 DATA SHEET KM4170, KM4270, KM4470 KM4470 Evaluation Board Layout 12 Figure 6i: KEB012 (top side) Figure 6j: KEB012 (bottom side) Figure 6k: KEB012 (layer1 mask) Figure 6l: KEB012 (layer2 mask) REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET b SOT23-5 CL DATUM ’A’ KM4170 Package Dimensions e 2 CL CL E e1 α C D CL A e L SC70 CL CL HE E Q1 CL REV. 5 December 2002 A2 SYMBOL e D b E HE Q1 A2 A1 A c L MIN MAX 0.65 BSC 1.80 2.20 0.15 0.30 1.15 1.35 1.80 2.40 0.10 0.40 0.80 1.00 0.00 0.10 0.80 1.10 0.10 0.18 1.10 0.30 C D A MAX 1.45 0.15 1.30 0.50 0.20 3.10 3.00 1.75 0.55 0.95 ref 1.90 ref 0 10 1. All dimensions are in millimeters. 2 Foot length measured reference to flat foot surface parallel to DATUM ’A’ and lead surface. 3. Package outline exclusive of mold flash & metal burr. 4. Package outline inclusive of solder plating. 5. Comply to EIAJ SC74A. 6. Package ST 0003 REV A supercedes SOT-D-2005 REV C. A1 CL MIN 0.90 0.00 0.90 0.25 0.09 2.80 2.60 1.50 0.35 NOTE: A2 b E1 SYMBOL A A1 A2 b C D E E1 L e e1 α NOTE: A1 1. 2. 3. 4. All dimensions are in millimeters. Dimensions are inclusive of plating. Dimensions are exclusive of mold flashing and metal burr. All speccifications comply to EIAJ SC70. 13 DATA SHEET KM4170, KM4270, KM4470 KM4270 Package Dimensions SOIC-8 SOIC D SYMBOL A1 B C D E e H h L A 7° e ZD CL CL Pin No. 1 E H B ZD A2 DETAIL-A L NOTE: h x 45° A A1 DETAIL-A 1. All dimensions are in millimeters. 2. Lead coplanarity should be 0 to 0.10mm (.004") max. 3. Package surface finishing: (2.1) Top: matte (charmilles #18~30). (2.2) All sides: matte (charmilles #18~30). (2.3) Bottom: smooth or matte (charmilles #18~30). 4. All dimensions excluding mold flashes and end flash from the package body shall not exceed o.152mm (.006) per side(d). α A2 C e MSOP 02 S MSOP-8 t1 R1 t2 E/2 2X –H– R Gauge Plane E1 3 7 0.25mm –B– L1 b ccc A B C 2 01 L 03 2 E3 E4 1 c Detail A Scale 40:1 c1 2 4 6 –C– D2 A2 A1 A Detail A E1 E D 3 E2 A –A– b bbb M A B C b1 Section A - A 5 A aaa A 4 NOTE: 1 All dimensions are in millimeters (angle in degrees), unless otherwise specified. 14 MIN MAX 0.10 0.25 0.36 0.46 0.19 0.25 4.80 4.98 3.81 3.99 1.27 BSC 5.80 6.20 0.25 0.50 0.41 1.27 1.52 1.72 8 0 0.53 ref 1.37 1.57 2 Datums – B – and – C – to be determined at datum plane – H – . 3 Dimensions "D" and "E1" are to be determined at datum – H – . 4 Dimensions "D2" and "E2" are for top package and dimensions "D" and "E1" are for bottom package. 5 Cross sections A – A to be determined at 0.13 to 0.25mm from the leadtip. 6 Dimension "D" and "D2" does not include mold flash, protrusion or gate burrs. 7 Dimension "E1" and "E2" does not include interlead flash or protrusion. SYMBOL MIN A 1.10 A1 0.10 A2 0.86 D 3.00 D2 2.95 E 4.90 E1 3.00 E2 2.95 E3 0.51 E4 0.51 R 0.15 R1 0.15 t1 0.31 t2 0.41 b 0.33 b1 0.30 c 0.18 c1 0.15 01 3.0° 02 12.0° 03 12.0° L 0.55 L1 0.95 BSC aaa 0.10 bbb 0.08 ccc 0.25 e 0.65 BSC S 0.525 BSC MAX – ±0.05 ±0.08 ±0.10 ±0.10 ±0.15 ±0.10 ±0.10 ±0.13 ±0.13 +0.15/-0.06 +0.15/-0.06 ±0.08 ±0.08 +0.07/-0.08 ±0.05 ±0.05 +0.03/-0.02 ±3.0° ±3.0° ±3.0° ±0.15 – – – – – – REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET KM4470 Package Dimensions TSSOP 6 e –B– 7 N 5 (b) 2X E/2 1.0 DIA TSSOP-14 8 E1 E c c1 1.0 b1 ddd C B A 2X N/2 TIPS 1 2 3 6 SECTION AA e /2 9 1.0 ccc 7 –A– A2 D 8 3 aaa C A –C– b NX A1 (02) (0.20) bbb M C B A R1 –H– R GAGE PLANE 10 A 0.25 (03) A L (L1) 01 SYMBOL A A1 A2 L R R1 b b1 c c1 01 L1 aaa bbb ccc ddd e 02 03 D E1 E e N MIN – 0.05 0.85 0.50 0.09 0.09 0.19 0.19 0.09 0.09 0° 4.90 4.30 NOM – – 0.90 0.60 – – – 0.22 – – – 1.0 REF 0.10 0.10 0.05 0.20 0.65 BSC 12° REF 12° REF 5.00 4.40 6.4 BSC 0.65 BSC 14 MAX 1.10 0.15 0.95 0.75 – – 0.30 0.25 0.20 0.16 8° 5.10 4.50 NOTES: 1 All dimensions are in millimeters (angle in degrees). 2 Dimensioning and tolerancing per ASME Y14.5–1994. 3 Dimensions "D" does not include mold flash, protusions or gate burrs. Mold flash protusions or gate burrs shall not exceed 0.15 per side . 4 Dimension "E1" does not include interlead flash or protusion. Interlead flash or protusion shall not exceed 0.25 per side. 5 Dimension "b" does not include dambar protusion. Allowable dambar protusion shall be 0.08mm total in excess of the "b" dimension at maximum material condition. Dambar connot be located on the lower radius of the foot. Minimum space between protusion and adjacent lead is 0.07mm for 0.5mm pitch packages. 6 Terminal numbers are shown for reference only. 7 Datums – A – and – B – to be determined at datum plane – H – . 8 Dimensions "D" and "E1" to be determined at datum plane – H – . 9 This dimensions applies only to variations with an even number of leads per side. For variation with an odd number of leads per side, the "center" lead must be coincident with the package centerline, Datum A. 10 Cross sections A – A to be determined at 0.10 to 0.25mm from the leadtip. REV. 5 December 2002 15 DATA SHEET KM4170, KM4270, KM4470 Ordering Information Model Part Number Package Container Pack Qty KM4170 KM4170IT5TR3 SOT23-5 Reel 3000 KM4170 KM4170IS5TR3 SC70-5 Reel 3000 KM4270 KM4270IC8TR3 SOIC-8 Reel 2500 KM4270 KM4270IM8TR3 MSOP-8 Reel 3000 KM4470 KM4470IP14TR3 TSSOP-14 Reel 2500 Temperature range for all parts: -40°C to +85°C. DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICES TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. © 2001 Fairchild Semiconductor Corporation