SLOS013C March   1987  – March 2016 LF347 , LF347B

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics: LF347
    6. 6.6 Electrical Characteristics: LF347B
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Slew Rate
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • N|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VCC+ Supply voltage 18 V
VCC– Supply voltage –18 V
VID Differential input voltage –30 30 V
VI Input voltage(2) –15 15 V
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 °C
TJ Operating virtual junction temperature 150 °C
Tstg Storage temperature –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Unless otherwise specified, the absolute maximum negative input voltage is equal to the negative power supply voltage.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
TA free-air temperature 0 70 °C
VCC+ Supply voltage 3.5 18 V
VCC– Supply voltage –3.5 –18 V
VCM Common-mode voltage VCC– + 4 VCC+ – 4 V
TA Operating temperature 0 70 °C

6.4 Thermal Information

THERMAL METRIC(1) LF347, LF347B UNIT
D (SOIC) N (PDIP)
14 PINS 14 PINS
RθJA Junction-to-ambient thermal resistance 74.4 42.7 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 32.5 29.2 °C/W
RθJB Junction-to-board thermal resistance 28.9 22.6 °C/W
ψJT Junction-to-top characterization parameter 3.7 13.5 °C/W
ψJB Junction-to-board characterization parameter 28.6 22.5 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics: LF347

over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIO Input offset voltage VIC = 0, RS = 10 kΩ 25°C 5 10 mV
Full range(1) 13
αVIO Average temperature coefficient of input offset voltage VIC = 0, RS = 10 kΩ 18 µV/°C
IIO Input offset current(2) VIC = 0 25°C 25 100 pA
70°C 4 nA
IIB Input bias current(2) VIC = 0 25°C 50 200 pA
70°C 8 nA
VICR Common-mode input voltage Lower limit of range –11 –12 V
Upper limit of range 11 15
VOM Maximum peak output voltage swing RL = 10 kΩ ±12 ±13.5 V
AVD Large signal differential voltage VO = ±10 V, RL = 2 kΩ 25°C 25 100 V/mV
Full range 15
ri Input resistance TA = 25°C 1012 Ω
CMRR Common-mode rejection ratio RS ≤ 2 kΩ 70 100 dB
kSVR Supply-voltage rejection ratio See (3) 70 100 dB
ICC Supply current 8 11 mA
(1) Full range is 0°C to 70°C.
(2) Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques must be used that will maintain the junction temperatures as close to the ambient temperature as possible.
(3) Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously.

6.6 Electrical Characteristics: LF347B

over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIO Input offset voltage VIC = 0, RS = 10 kΩ 25°C 3 5 mV
Full range(1) 7
αVIO Average temperature coefficient of input offset voltage VIC = 0, RS = 10 kΩ 18 µV/°C
IIO Input offset current(2) VIC = 0 25°C 25 100 pA
70°C 4 nA
IIB Input bias current(2) VIC = 0 25°C 50 200 pA
70°C 8 nA
VICR Common-mode input voltage Lower limit of range –11 –12 V
Upper limit of range 11 15
VOM Maximum peak output voltage swing RL = 10 kΩ ±12 ±13.5 V
AVD Large signal differential voltage VO = ±10 V, RL = 2 kΩ 25°C 50 100 V/mV
Full range 25
ri Input resistance TA = 25°C 1012 Ω
CMRR Common-mode rejection ratio RS ≤ 2 kΩ 80 100 dB
kSVR Supply-voltage rejection ratio See (3) 80 100 dB
ICC Supply current 8 11 mA
(1) Full range is 0°C to 70°C.
(2) Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques must be used that will maintain the junction temperatures as close to the ambient temperature as possible.
(3) Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously.

6.7 Switching Characteristics

VCC± = ±15 V, TA= 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SR Slew rate at unity gain VI = 10 V,
CL = 100 pF,		 RL = 2 kΩ,
See Figure 5 		8 13 V/μs
B1 Unity-gain bandwidth 3 MHz
VO1 / VO2 Crosstalk attenuation f = 1 kHZ 120 dB
Vn Equivalent input noise voltage RS = 20 Ω f = 1 kHz 18 nV/√Hz
f = 10 Hz to 10 kHz 4 μV
In Equivalent input noise current RS = 20 Ω, f = 1 kHz 0.01 pA/√Hz

6.8 Typical Characteristics

LF347 LF347B tc1_los080.gif Figure 1. Input Bias Current vs Free-Air Temperature
LF347 LF347B loadline.gif Figure 3. Maximum Peak Output Voltage vs Load Resistance
LF347 LF347B vppfreq.gif Figure 2. Maximum Peak Output Voltage vs Frequency
LF347 LF347B number9_v4.png Figure 4. Large-Signal Differential Voltage Amplification
and Phase Shift vs Frequency