LF347B

ACTIVE

Quad, 36-V, 3-MHz, high slew rate (13-V/µs), 5-mV offset voltage, In to V+, JFET-input op amp

A newer version of this product is available

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TL074H ACTIVE Quad, 40-V, 5-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation Wider temperature range (-40°C to 125°C), lower quiescent current (0.0937 mA), wider voltage range (4.5 V to 40 V), and improved offset voltage drift
TL084H ACTIVE Quad, 40-V, 5.25-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation Wider supply range (4.5 V to 40 V), higher GBW (5.25 MHz), faster slew rate (20 V/us), lower offset voltage (4 mV), lower power (0.9375 mA)

Product details

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7 Rail-to-rail In to V+ GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 13 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 2 Vn at 1 kHz (typ) (nV√Hz) 18 Rating Catalog Operating temperature range (°C) 0 to 70 Offset drift (typ) (µV/°C) 10 Input bias current (max) (pA) 200 CMRR (typ) (dB) 100 Iout (typ) (A) 0.031 Architecture FET Input common mode headroom (to negative supply) (typ) (V) 3 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 1.5 Output swing headroom (to positive supply) (typ) (V) -1.5
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7 Rail-to-rail In to V+ GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 13 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 2 Vn at 1 kHz (typ) (nV√Hz) 18 Rating Catalog Operating temperature range (°C) 0 to 70 Offset drift (typ) (µV/°C) 10 Input bias current (max) (pA) 200 CMRR (typ) (dB) 100 Iout (typ) (A) 0.031 Architecture FET Input common mode headroom (to negative supply) (typ) (V) 3 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 1.5 Output swing headroom (to positive supply) (typ) (V) -1.5
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6
  • Low Input Bias Current: 50 pA Typical
  • Low Input Noise Current: 0.01 pA/√Hz Typical
  • Low Total Harmonic Distortion
  • Low Supply Current: 8 mA Typical
  • Gain Bandwidth: 3 MHz Typical
  • High Slew Rate: 13 V/ms Typical
  • Low Input Bias Current: 50 pA Typical
  • Low Input Noise Current: 0.01 pA/√Hz Typical
  • Low Total Harmonic Distortion
  • Low Supply Current: 8 mA Typical
  • Gain Bandwidth: 3 MHz Typical
  • High Slew Rate: 13 V/ms Typical

The LF347 and LF347B devices are low-cost, high-speed, JFET-input operational amplifiers. They require low supply current yet maintain a large gain-bandwidth product and a fast slew rate. In addition, their matched high-voltage JFET inputs provide very low input bias and offset current.

The LF347 and LF347B can be used in applications such as high-speed integrators, digital-to-analog converters, sample-and-hold circuits, and many other circuits.

The LF347 and LF347B devices are characterized for operation from 0°C to 70°C.

The LF347 and LF347B devices are low-cost, high-speed, JFET-input operational amplifiers. They require low supply current yet maintain a large gain-bandwidth product and a fast slew rate. In addition, their matched high-voltage JFET inputs provide very low input bias and offset current.

The LF347 and LF347B can be used in applications such as high-speed integrators, digital-to-analog converters, sample-and-hold circuits, and many other circuits.

The LF347 and LF347B devices are characterized for operation from 0°C to 70°C.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet LF347, LF347B JFET-Input Quad Operational Amplifiers datasheet (Rev. C) PDF | HTML 31 Mar 2016
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

LF347, LF347B PSpice Model

SLOJ038.ZIP (0 KB) - PSpice Model
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Package Pins Download
PDIP (N) 14 View options
SOIC (D) 14 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos