LF347MX

LF147, LF347-N www.ti.com SNOSBH1D – MAY 1999 – REVISED MARCH 2013 LF147/LF347 Wide Bandwidth Quad JFET Input Operational Amplifiers Check for Samples: LF147, LF347-N FEATURES DESCRIPTION • • • • • • • • • • The LF147 is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage ( BI-FET II™ technology). The device requires a low supply current and yet maintains a large gain bandwidth product and a fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF147 is pin compatible with the standard LM148. This feature allows designers to immediately upgrade the overall performance of existing LF148 and LM124 designs. 1 23 Internally Trimmed Offset Voltage: 5 mV max Low Input Bias Current: 50 pA Low Input Noise Current: 0.01 pA/√Hz Wide Gain Bandwidth: 4 MHz High Slew Rate: 13 V/μs Low Supply Current: 7.2 mA High Input Impedance: 1012Ω Low Total Harmonic Distortion: ≤0.02% Low 1/f Noise Corner: 50 Hz Fast Settling Time to 0.01%: 2 μs Simplified Schematic The LF147 may be used in applications such as high speed integrators, fast D/A converters, sample-andhold circuits and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate and wide bandwidth. The device has low noise and offset voltage drift. Connection Diagram ¼ Quad LF147 available as per JM38510/11906. Figure 1. 14-Pin PDIP / CDIP / SOIC Top View See Package Number J0014A, D0014A or NFF0014A 1 2 3 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. BI-FET II is a trademark of dcl_owner. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1999–2013, Texas Instruments Incorporated LF147, LF347-N SNOSBH1D – MAY 1999 – REVISED MARCH 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. Absolute Maximum Ratings (1) (2) LF147 LF347B/LF347 ±22V ±18V Differential Input Voltage ±38V ±30V (3) ±19V ±15V Continuous Continuous 900 mW 1000 mW Supply Voltage Input Voltage Range Output Short Circuit Duration Power Dissipation (4) (5) (6) Tj max 150°C θjA 150°C CDIP (J) Package 70°C/W PDIP (NFF) Package 75°C/W SOIC Narrow (D) 100°C/W SOIC Wide (D) 85°C/W Operating Temperature Range See Lead Temperature (Soldering, 10 sec.) ESD Tolerance (1) (2) (3) (4) (5) (6) (7) (8) 260°C 260°C SOIC Package Vapor Phase (60 seconds) 215°C Infrared (15 seconds) 220°C (8) 900V (1) (2) Parameter Conditions LF147 Min VOS Input Offset Voltage RS=10 kΩ, TA=25°C ΔVOS/Δ T Average TC of Input Offset Voltage RS=10 kΩ IOS Input Offset Current Tj=25°C, Max 1 5 10 (2) (3) Input Bias Current RIN Input Resistance Tj=25°C, (2) (3) 25 50 LF347 Typ Max 3 5 10 100 200 25 50 Max 5 10 13 100 25 200 50 1012 mV mV μV/°C 10 8 1012 Units Typ 4 50 1012 Min 7 25 Over Temperature Tj=25°C Min 8 Over Temperature IB LF347B Typ Over Temperature 2 260°C Soldering (10 seconds) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications. Unless otherwise specified the absolute maximum negative input voltage is equal to the negative power supply voltage. Any of the amplifier outputs can be shorted to ground indefinitely, however, more than one should not be simultaneously shorted as the maximum junction temperature will be exceeded. For operating at elevated temperature, these devices must be derated based on a thermal resistance of θjA. Max. Power Dissipation is defined by the package characteristics. Operating the part near the Max. Power Dissipation may cause the part to operate outside ensured limits. The LF147 is available in the military temperature range −55°C≤TA≤125°C, while the LF347B and the LF347 are available in the commercial temperature range 0°C≤TA≤70°C. Junction temperature can rise to Tj max = 150°C. Human body model, 1.5 kΩ in series with 100 pF. Symbol (3) (7) PDIP / CDIP DC Electrical Characteristics (1) (2) See −65°C≤TA≤150°C Storage Temperature Range Soldering Information (7) 100 pA 4 nA 200 pA 8 nA Ω Refer to RETS147X for LF147D and LF147J military specifications. Unless otherwise specified the specifications apply over the full temperature range and for VS=±20V for the LF147 and for VS=±15V for the LF347B/LF347. VOS, IB, and IOS are measured at VCM=0. The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature, Tj. Due to limited production test time, the input bias currents measured are correlated to junction temperature. In normal operation the junction temperature rises above the ambient temperature as a result of internal power dissipation, PD. Tj=TA+θjA PD where θjA is the thermal resistance from junction to ambient. Use of a heat sink is recommended if input bias current is to be kept to a minimum. Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LF147 LF347-N LF147, LF347-N www.ti.com SNOSBH1D – MAY 1999 – REVISED MARCH 2013 DC Electrical Characteristics (1)(2) (continued) Symbol AVOL Parameter Conditions Large Signal Voltage Gain VS=±15V, TA=25°C LF147 Min Typ 50 LF347B Max Min Typ 100 50 LF347 Max Min Typ 100 25 100 Units Max V/mV VO=±10V, RL=2 kΩ Over Temperature 25 VO Output Voltage Swing VS=±15V, RL=10 kΩ ±12 ±13. 5 ±12 ±13. 5 ±12 ±13. 5 V VCM Input Common-Mode Voltage Range VS=±15V ±11 +15 ±11 +15 ±11 +15 V CMRR Common-Mode Rejection Ratio RS≤10 kΩ PSRR Supply Voltage Rejection Ratio See IS Supply Current (4) 25 −12 (4) 15 −12 V/mV −12 V 80 100 80 100 70 100 dB 80 100 80 100 70 100 dB 7.2 11 7.2 11 7.2 11 mA Supply voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously in accordance with common practice from VS = ± 5V to ±15V for the LF347 and LF347B and from VS = ±20V to ±5V for the LF147. AC Electrical Characteristics Symbol (1) (2) Parameter Conditions LF147 Min Amplifier to Amplifier Coupling Typ LF347B Max Min −120 TA=25°C, Typ LF347 Max Min −120 Typ Units Max −120 dB 13 V/μs f=1 Hz−20 kHz (Input Referred) SR Slew Rate VS=±15V, TA=25°C 8 GBW Gain-Bandwidth Product VS=±15V, TA=25°C 2.2 4 MHz en Equivalent Input Noise Voltage TA=25°C, RS=100Ω, f=1000 Hz 20 20 20 nV / √Hz in Equivalent Input Noise Current Tj=25°C, f=1000 Hz 0.01 0.01 0.01 pA / √Hz THD Total Harmonic Distortion AV=+10, RL=10k,