component
LF347IMT
Public Made by Adomby adom
HGSEMI FET Input Amplifiers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLF347IMT
HGSEMI · FET Input Amplifiers · TSSOP-14
LF347IMT from HGSEMI, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT1 | output | Output of amplifier 1. |
| 2 | IN1- | input | Inverting input of amplifier 1. |
| 3 | IN1+ | input | Non-inverting input of amplifier 1. |
| 4 | VCC+ | power_in | Positive supply; supply voltage Vcc is rated at ±18 V maximum. |
| 5 | IN2+ | input | Non-inverting input of amplifier 2. |
| 6 | IN2- | input | Inverting input of amplifier 2. |
| 7 | OUT2 | output | Output of amplifier 2. |
| 8 | OUT3 | output | Output of amplifier 3. |
| 9 | IN3- | input | Inverting input of amplifier 3. |
| 10 | IN3+ | input | Non-inverting input of amplifier 3. |
| 11 | VCC- | power_in | Negative supply; supply voltage Vcc is rated at ±18 V maximum. |
| 12 | IN4+ | input | Non-inverting input of amplifier 4. |
| 13 | IN4- | input | Inverting input of amplifier 4. |
| 14 | OUT4 | output | Output of amplifier 4. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TSSOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 电源电压 (Supply voltage) | Vcc | -18 | 18 | V | 3 | ||
| 输入电压 (Input voltage) | Vi | -15 | 15 | V | 3 | ||
| 差模输入电压 (Differential input voltage) | Vid | -30 | 30 | V | 3 | ||
| 功耗 (Power dissipation) | Ptot | 680 | mW | 3 | |||
| 工作温度 LF347I (Operating temperature, I grade) | Toper | -40 | 85 | °C | LF347I grade | 3 | |
| 储藏温度 (Storage temperature) | Tstg | -65 | 150 | °C | 3 | ||
| 引脚温度 (Lead temperature, soldering) | TLEAD | 245 | °C | soldering 10 s | 3 | ||
| 输入失调电压 (Input offset voltage) | Vio | 3 | 13 | mV | Rs=5Ω | 3 | |
| 大信号电压增益 (Large-signal voltage gain) | Avd | 25 | V/mV | RL=2KΩ, Vo=±10V | 3 | ||
| 电源电压抑制比 (Supply voltage rejection ratio) | SVR | 65 | 75 | dB | Rs=50Ω | 3 | |
| 单路运放静态电流 (Quiescent current per amplifier) | Icc | 1.4 | 2.5 | mA | 3 | ||
| 输入共模电压范围 (Input common-mode voltage range) | Vicm | -12 | 15 | V | 3 | ||
| 共模抑制比 (Common-mode rejection ratio) | CMR | 65 | 75 | dB | Rs=50Ω | 3 | |
| 输出短路电流 (Output short-circuit current) | Ios | 10 | 50 | 60 | mA | 3 | |
| 输出电压摆幅 (Output voltage swing) | ±Vopp | 10 | 12 | V | RL=2KΩ | 3 | |
| 输出电压摆幅 (Output voltage swing) | ±Vopp | 12 | 13.5 | V | RL=10KΩ | 3 | |
| 转换速率 (Slew rate) | SR | 8 | 16 | V/us | Vin=10V, RL=2KΩ, CL=100pF | 3 | |
| 增益带宽积 (Gain bandwidth product) | GBP | 2.5 | 4 | MHz | f=100kHz, Vin=10mV, RL=2KΩ, CL=100pF | 3 | |
| 输入失调电流 (Input offset current) | Iio | 4 | nA | 3 | |||
| 输入偏置电流 (Input bias current) | Iib | 20 | nA | 3 | |||
| 延迟时间 (Delay time, printed as tr) | tr | 0.1 | us | Vin=200mV, RL=2KΩ, CL=100pF | 3 |
CAD (KiCad official)
- Symbol:
LF347IMT - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
lf347imt-etched.step/lf347imt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lf347imt.step/lf347imt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (8 pp, sha256
f7a6eeb6b6bf8dfd, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).