LF347 FAIRCHILD | Alldatasheet
Document overview
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Technical content
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 14-SOP Internal Block Diagram LF347 Quad Operational Amplifier (JFET)
(One Section Only) Absolute Maximum Ratings Parameter Symbol Value Unit Supply Voltage V CC ±18 V Differential Input Voltage V I(DIFF) 30 V Input Voltage Range V I ±15 V Output Short Circuit Duration - Continuous - Power Dissipation P D 570 mW Operating Temperature Range T OPR 0 ~ + 70 °C Storage Temperature Range T STG -65 ~ + 150 °C
Electrical Characteristics
(VCC= +15V, VEE= -15V, TA=25 °C, unless otherwise specified) Note : 2. Guaranteed by design Parameter Symbol Conditions LF347 UnitMin. Typ. Max. Input Offset Voltage V IO RS = 10KΩ -5 1 0 mV Note 1 - - 13 Input Offset Voltage Drift(Note2) ∆VIO/∆TR S = 10KΩ -1 0 - µV/ °C Input Offset Current I IO - 25 100 pA Note 1 - - 4 nA Input Bias Current I BIAS - 50 200 pA Note 1 - - 8 nA Large Signal Voltage Gain G V RL = 2KΩ 25 100 - V/mVVO(P-P)= ±10V Note 1 15 - - Output Voltage Swing V O(PP) RL = 10KΩ± 12 ±13.5 - V Input Voltage Range V I(R) - ±11 +15 -12 -V Common-Mode Rejection Ratio CMRR R S ≤ 10KΩ 80 100 - dB Power Supply Rejection Ratio PSRR R S ≤ 10KΩ 80 100 - dB Input Resistance R I - -1 0 12 - Ω Supply Current I CC - -7 . 2 1 1 m A Slew Rate SR - -1 3 - V / µS Gain Bandwidth Product(Note2) GBW - -4 - M H z Channel Seperation CS f = 1Hz ~ 20Khz (input referenced) - 120 - dB Equivalent Input Noise Voltage eN RS = 100Ω f = 1KHz -2 0 - nV/ Equivalent Input Noise Current IN f = 1KHz - 0.01 - pA/ Hz Hz
6.40 ±0.20 7.62 0.300 2.54 0.100 #7 #8 #14 0.252 ±0.008 0~15° 0.25 +0.10 –0.05 0.010 +0.004 –0.002 3.30 ±0.30 0.130 ±0.012 3.25 ±0.20 0.128 ±0.008 19.40 ±0.20 0.764 ±0.008 19.80 0.780MAX 5.08 0.200 0.20 0.008 MAX MIN 2.08 0.082() 0.46 ±0.10 0.018 ±0.004 0.059 ±0.004 1.50 ±0.10 14-DIP
Mechanical Dimensions (Continued) Package Dimensions in millimeters8.56 ±0.20 0.337 ±0.008 1.27 0.050 5.72 0.225 1.55 ±0.10 0.061 ±0.004 0.05 0.002 6.00 ±0.30 0.236 ±0.012 3.95 ±0.20 0.156 ±0.008 0.60 ±0.20 0.024 ±0.008 8.70 0.343MAX #7 #8 0~8 #14 0.47 0.019() 1.80 0.071 MAX0.10 MAX0.004 MAX MIN +0.10-0.05 0.20 +0.004-0.002 0.008 +0.10 -0.050.406 +0.004 -0.0020.016 14-SOP
6/1/01 0.0m 001 Stock#DSxxxxxxxx 2001 Fairchild Semiconductor Corporation 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. 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. www.fairchildsemi.com 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.
Ordering Information
Product Number Package Operating Temperature LF347N 14-DIP 0 ~ + 70°C LF347M 14-SOP