IC OPAMP VFB 1 CIRCUIT 8SOIC
This post covers the datasheet, pinout, schematic and more details about LM7171, a high-speed voltage feedback amplifier.
LM7171 Voltage Feedback Amplifier: Datasheet, Pinout, Schematic
IC OPAMP VFB 1 CIRCUIT 8SOIC This post covers the datasheet, pinout, schematic and more details about LM7171, a high-speed voltage feedback amplifier.
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Sep 16, 2021
Maggie Judson
LM7171BIMX
6In Stock
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LM7171 Pinout
| Pin Number | Pin Name | Description |
| 1 | NC | No Connection |
| 2 | -IN | Inverting Power Supply |
| 3 | +IN | Non-inverting Power Suppl: |
| 4 | V. | Supply Voltage |
| 5 | NIC | No Connection |
| 6 | OUTPUT | Output |
| 7 | V+ | Supply Voltage |
| 8 | NC | No Connection |
Pin Description
LM7171 Description
The LM7171 is a high-speed voltage feedback amplifier that has the slewing characteristic of a current feedback amplifier, yet it can be used in all traditional voltage feedback amplifier configurations.
The LM7171 is stable for gains as low as +2 or −1. It provides a very high slew rate at 4100V/µs and a wide unity-gain bandwidth of 200 MHz while consuming only 6.5 mA of supply current.
LM7171 CAD Model
LM7171 Symbol
LM7171 Footprint
LM7171 3D Model
Specifications
Texas Instruments LM7171BIMX technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM7171BIMX.
LM7171BIMX Tech Specifications
LM7171BIMX Tech Specifications
Texas Instruments LM7171BIMX technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM7171BIMX.
| Product Attribute | Attribute Value | |
|---|---|---|
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) | |
| Number of Pins | 8Pins | |
| Number of Elements | 1 Element | |
| Operating Temperature | -40°C~85°C | |
| Packaging | Tape & Reel (TR) | |
| Series | VIP™ III | |
| JESD-609 Code | e0 | |
| Pbfree Code | no | |
| Part Status | Obsolete | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 8Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Packing Method | TAPE AND REEL | |
| Terminal Position | DUAL |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 235 | |
| Number of Functions | 1Function | |
| Supply Voltage | 5V | |
| Base Part Number | LM7171 | |
| Pin Count | 8 | |
| Operating Supply Voltage | 18V | |
| Operating Supply Current | 6.5mA | |
| Nominal Supply Current | 6.5mA | |
| Output Current | 100mA | |
| Slew Rate | 4100V/μs | |
| Amplifier Type | Voltage Feedback | |
| Common Mode Rejection Ratio | 70 dB | |
| Current - Input Bias | 2.7μA | |
| Voltage - Supply, Single/Dual (±) | 5.5V~36V ±2.75V~18V | |
| Output Current per Channel | 118mA | |
| Input Offset Voltage (Vos) | 200μV |
| Product Attribute | Attribute Value | |
|---|---|---|
| Gain Bandwidth Product | 200MHz | |
| Neg Supply Voltage-Nom (Vsup) | -5V | |
| Unity Gain BW-Nom | 125000 kHz | |
| Voltage Gain | 78dB | |
| Power Supply Rejection Ratio (PSRR) | 75dB | |
| Low-Offset | NO | |
| Frequency Compensation | YES AVCL>=2 | |
| Low-Bias | NO | |
| Micropower | NO | |
| -3db Bandwidth | 220MHz | |
| Programmable Power | NO | |
| Wideband | YES | |
| Length | 4.9mm | |
| Radiation Hardening | No | |
| RoHS Status | Non-RoHS Compliant | |
| Lead Free | Contains Lead |
LM7171 Features
-
Easy-to-use voltage feedback topology
-
Very high slew rate: 4100 V/µs
-
Wide unity-gain bandwidth: 200 MHz
-
−3 dB frequency @ AV = +2: 220 MHz
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Low supply current: 6.5 mA
-
High open-loop gain: 85 dB
-
High output current: 100 mA
-
Differential gain and phase: 0.01%, 0.02˚
-
Specified for ±15V and ±5V operation
LM7171 Simplified Schematic Diagram
LM7171 Simplified Schematic Diagram
LM7171 Application Circuits
The LM7171 is a very high speed, voltage feedback amplifier. It consumes only 6.5 mA supply current while providing a unity-gain bandwidth of 200 MHz and a slew rate of 4100V/μs. It also has other great features such as low differential gain and phase and high output current.
The LM7171 is a true voltage feedback amplifier. Unlike current feedback amplifiers (CFAs) with a low inverting input impedance and a high non-inverting input impedance, both inputs of voltage feedback amplifiers (VFAs) have high impedance nodes. The low impedance inverting input in CFAs and a feedback capacitor creates an additional pole that will lead to instability. As a result, CFAs cannot be used in traditional op-amp circuits such as photodiode amplifiers, I-to-V converters and integrators where a feedback capacitor is required.
The class AB input stage in LM7171 is fully symmetrical and has a similar slewing characteristic to the current feedback amplifiers. In the LM7171 Simplified Schematic, Q1 through Q4 form the equivalent of the current feedback input buffer, RE the equivalent of the feedback resistor, and stage A buffers the inverting input. The triple-buffered output stage isolates the gain stage from the load to provide low output impedance.
The application circuits for LM7171 are shown below.
LM7171 Alternatives
| Parts | Description | Manufacturer |
| LF347N AMPLIFIER CIRCUITS | IC QUAD OP-AMP, 13000 uV OFFSET-MAX, 4 MHz BAND WIDTH, PDIP14, PLASTIC, DIP-14, Operational Amplifier | National Semiconductor Corporation |
| LM101AH/883 AMPLIFIER CIRCUITS | IC OP-AMP, Operational Amplifier | Linear Technology |
| LMC6064IMX AMPLIFIER CIRCUITS | QUAD OP-AMP, 1300uV OFFSET-MAX, 0.1MHz BAND WIDTH, PDSO14, SOP-14 | Rochester Electronics LLC |
| 5962R9950402VDX AMPLIFIER CIRCUITS | Operational Amplifier, 4 Func, 4000uV Offset-Max, BIPolar, CDSO14, CERAMIC, DFP-14 | Defense Logistics Agency |
| 5962-8771002GA AMPLIFIER CIRCUITS | IC DUAL OP-AMP, 500 UV OFFSET-MAX, 1 MHz BANDWIDTH, MBCY8, METAL CAN, TO-99, 8 PIN, Operational Amplifier | National Semiconductor Corporation |
| LPV358MMX/NOPB AMPLIFIER CIRCUITS | IC DUAL OP-AMP, 10000 uV OFFSET-MAX, 0.152 MHz BAND WIDTH, PDSO8, MSOP-8, Operational Amplifier | National Semiconductor Corporation |
| LM358H AMPLIFIER CIRCUITS | DUAL OP-AMP, 9000uV OFFSET-MAX, 1MHz BAND WIDTH, MBCY8, METAL CAN, TO-5, 8 PIN | Texas Instruments |
| LF411ACN/NOPB AMPLIFIER CIRCUITS | IC OP-AMP, 500 UV OFFSET-MAX, 4 MHz BANDWIDTH, PDIP8, DIP-8, Operational Amplifier | National Semiconductor Corporation |
| M38510/10103BCA AMPLIFIER CIRCUITS | IC OP-AMP, 3000 uV OFFSET-MAX, CDIP14, CERAMIC, DIP-14, Operational Amplifier | Defense Supply Center Columbus |
| LF412MH AMPLIFIER CIRCUITS | IC DUAL OP-AMP, 3000 UV OFFSET-MAX, 4 MHz BANDWIDTH, MBCY8, METAL CAN-8, Operational Amplifier | National Semiconductor Corporation |
LM7171 Package
LM7171 Manufacturer
Texas Instruments (TI) is a global semiconductor firm originating in 1958 and nowadays it has over 30,000 employees who design, conduct and sell analogue and product-differentiating embedded processing components in 35 countries. Aimed at changing the world of tech, TI has put great effort into becoming the solution provider coupled with a vision.
Datasheet PDF
Download datasheets and manufacturer documentation for Texas Instruments LM7171BIMX.
LM7171BIMX Documents
LM7171BIMX Documents
Download datasheets and manufacturer documentation for LM7171BIMX
Datasheets
LM7171
Frequently Asked Questions
Is lm7171 an op-amp or a comparator?
The LM7171 is a high-speed voltage feedback amplifier.
What is the LM7171?
The LM7171 is a high-speed voltage feedback amplifier that has the slewing characteristic of a current feedback amplifier, yet it can be used in all traditional voltage feedback amplifier configurations. The LM7171 is stable for gains as low as +2 or −1. It provides a very high slew rate at 4100V/µs and a wide unity-gain bandwidth of 200 MHz while consuming only 6.5 mA of supply current.
Is LM7171 ideal for video and high speed signal processing application?
Yes, It is ideal for video and high-speed signal processing applications such as HDSL and pulse amplifiers. With 100 mA output current, the LM7171 can be used for video distribution, as a transformer driver or as a laser diode driver.
What does LM7171 operate？
It operates on ±15V power supplies allows for large signal swings and provides greater dynamic range and signal-to-noise ratio. The LM7171 offers low SFDR and THD, ideal for ADC/DAC systems. In addition, the LM7171 is specified for ±5V operation for portable applications.
FAQ
Is lm7171 an op-amp or a comparator?
The LM7171 is a high-speed voltage feedback amplifier.
What is the LM7171?
The LM7171 is a high-speed voltage feedback amplifier that has the slewing characteristic of a current feedback amplifier, yet it can be used in all traditional voltage feedback amplifier configurations. The LM7171 is stable for gains as low as +2 or −1. It provides a very high slew rate at 4100V/µs and a wide unity-gain bandwidth of 200 MHz while consuming only 6.5 mA of supply current.
Is LM7171 ideal for video and high speed signal processing application?
Yes, It is ideal for video and high-speed signal processing applications such as HDSL and pulse amplifiers. With 100 mA output current, the LM7171 can be used for video distribution, as a transformer driver or as a laser diode driver.
What does LM7171 operate？
It operates on ±15V power supplies allows for large signal swings and provides greater dynamic range and signal-to-noise ratio. The LM7171 offers low SFDR and THD, ideal for ADC/DAC systems. In addition, the LM7171 is specified for ±5V operation for portable applications.
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