LF347

www.fairchildsemi.com LF347 Quad Operational Amplifier (JFET) Features • • • • Low input bias current High input impedance Wide gain bandwidth: 4 MHz Typ. High slew rate: 13 V/µs Typ. Description The LF347 is a high speed quad JFET input operational amplifier. This feature high input impedance, wide bandwidth, high slew rate, and low input offset voltage and bias current. LF347 may be used in circuits requiring high input impedance. High slew rate and wide bandwidth, low input bias current. 14-DIP 1 14-SOP 1 Internal Block Diagram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation LF347 Schematic Diagram (One Section Only) Absolute Maximum Ratings Parameter Supply Voltage Differential Input Voltage Input Voltage Range Output Short Circuit Duration Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VCC VI(DIFF) VI PD TOPR TSTG Value ±18 30 ±15 Continuous 570 0 ~ + 70 -65 ~ + 150 Unit V V V mW °C °C 2 LF347 Electrical Characteristics (VCC= +15V, VEE= -15V, TA=25 °C, unless otherwise specified) Parameter Input Offset Voltage Input Offset Voltage Drift(Note2) Input Offset Current Input Bias Current Large Signal Voltage Gain Output Voltage Swing Input Voltage Range Common-Mode Rejection Ratio Power Supply Rejection Ratio Input Resistance Supply Current Slew Rate Gain Bandwidth Product(Note2) Channel Seperation Equivalent Input Noise Voltage Equivalent Input Noise Current Note : 1. LF347 : 0≤TA≤+70 °C 2. Guaranteed by design Symbol VIO ∆VIO/∆T IIO IBIAS GV VO(PP) VI(R) CMRR PSRR RI ICC SR GBW CS RS ≤ 10KΩ RS ≤ 10KΩ f = 1Hz ~ 20Khz (input referenced) RS = 100Ω f = 1KHz f = 1KHz RL = 2KΩ VO(P-P)= ±10V RL = 10KΩ Note 1 Conditions RS = 10KΩ Note 1 RS = 10KΩ Note 1 Note 1 LF347 Min. 25 15 ±12 ±11 80 80 Typ. 5 10 25 50 100 ±13.5 +15 -12 100 100 10 12 Max. 10 13 100 4 200 8 11 - Unit mV µV/ °C pA nA pA nA V/mV V V dB dB Ω mA V/µS MHz dB nV/ Hz 7.2 13 4 120 20 0.01 eN IN pA/ Hz 3 LF347 Mechanical Dimensions Package Dimensions in millimeters 14-DIP 6.40 ±0.20 0.252 ±0.008 19.80 MAX 0.780 19.40 ±0.20 0.764 ±0.008 #7 #8 7.62 0.300 3.25 ±0.20 0.128 ±0.008 0.20 0.008 MIN 5.08 MAX 0.200 3.30 ±0.30 0.130 ±0.012 0.25 –0.05 +0.10 0~15° 0.010 –0.002 +0.004 4 2.54 0.100 0.46 ±0.10 0.018 ±0.004 1.50 ±0.10 0.059 ±0.004 #1 #14 ( 2.08 ) 0.082 LF347 Mechanical Dimensions (Continued) Package Dimensions in millimeters 14-SOP MIN 1.55 ±0.10 0.061 ±0.004 0.05 0.002 0.47 ) 0.019 MAX0.10 MAX0.004 1.27 0.050 +0.10 0.406 -0.05 +0.004 0.016 -0.002 ( #1 #14 8.70 MAX 0.343 #7 6.00 ±0.30 0.236 ±0.012 #8 1.80 MAX 0.071 +0.10 0.20 -0.05 +0.004 0.008 -0.002 3.95 ±0.20 0.156 ±0.008 0.60 ±0.20 0.024 ±0.008 5.72 0.225 0~ 8° 8.56 ±0.20 0.337 ±0.008 5 LF347 Ordering Information Product Number LF347N LF347M Package 14-DIP 14-SOP Operating Temperature 0 ~ + 70°C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE 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 6/1/01 0.0m 001 Stock#DSxxxxxxxx  2001 Fairchild Semiconductor Corporation 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.