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LTC728XT14
Public Made by Adomby adom
Linearin Precision OpAmps, 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
markdownLTC728XT14
Linearin · Precision OpAmps · TSSOP-14
LTC728XT14 from Linearin, 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 | OUTA | output | Amplifier A output. |
| 2 | -INA | input | Amplifier A inverting input; voltage range is (VS- - 0.1V) to (VS+ + 0.1V). |
| 3 | +INA | input | Amplifier A non-inverting input; same voltage range as -IN, (VS- - 0.1V) to (VS+ + 0.1V). |
| 4 | +VS | power_in | Positive power supply. |
| 5 | +INB | input | Amplifier B non-inverting input; same voltage range as -IN, (VS- - 0.1V) to (VS+ + 0.1V). |
| 6 | -INB | input | Amplifier B inverting input; voltage range is (VS- - 0.1V) to (VS+ + 0.1V). |
| 7 | OUTB | output | Amplifier B output. |
| 8 | OUTC | output | Amplifier C output. |
| 9 | -INC | input | Amplifier C inverting input; voltage range is (VS- - 0.1V) to (VS+ + 0.1V). |
| 10 | +INC | input | Amplifier C non-inverting input; same voltage range as -IN, (VS- - 0.1V) to (VS+ + 0.1V). |
| 11 | -VS | power_in | Negative power supply. |
| 12 | +IND | input | Amplifier D non-inverting input; same voltage range as -IN, (VS- - 0.1V) to (VS+ + 0.1V). |
| 13 | -IND | input | Amplifier D inverting input; voltage range is (VS- - 0.1V) to (VS+ + 0.1V). |
| 14 | OUTD | output | Amplifier D output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Linearin |
| Package | TSSOP-14 |
| Category | Amplifiers |
| 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 |
|---|---|---|---|---|---|---|---|
| Input offset voltage (LTC728) | VOS | -0.5 | 0.12 | 0.5 | mV | LTC728 | 3 |
| Offset voltage drift | VOS TC | 1 | 2.3 | μV/℃ | TA = −40 to +125 ℃ | 3 | |
| Power supply rejection ratio | PSRR | 95 | 110 | dB | VS = 2.0 to 5.5 V, VCM < VS+ − 2V | 3 | |
| Power supply rejection ratio over temperature | PSRR | 82 | dB | TA = −40 to +125 ℃ | 3 | ||
| CMRR 5.5V | CMRR | 80 | 96 | dB | VS = 5.5 V, VCM = −0.1 to 5.6 V | 3 | |
| CMRR 5.5V over temperature | CMRR | 75 | dB | VCM = 0 to 5.3 V, TA = −40 to +125 ℃ | 3 | ||
| CMRR 2.0V | CMRR | 76 | 90 | dB | VS = 2.0 V, VCM = −0.1 to 2.1 V | 3 | |
| CMRR 2.0V over temperature | CMRR | 70 | dB | VCM = 0 to 1.8 V, TA = −40 to +125 ℃ | 3 | ||
| Open-loop gain 10k | AVOL | 97 | 105 | dB | RL = 10 kΩ, VO = 0.05 to 3.5 V | 3 | |
| Open-loop gain 10k over temperature | AVOL | 87 | dB | TA = −40 to +125 ℃ | 3 | ||
| Open-loop gain 600R | AVOL | 85 | 90 | dB | RL = 600 Ω, VO = 0.15 to 3.5 V | 3 | |
| Open-loop gain 600R over temperature | AVOL | 75 | dB | TA = −40 to +125 ℃ | 3 | ||
| Input bias current | IB | 150 | pA | TA = +85 ℃ | 3 | ||
| Input bias current | IB | 500 | pA | TA = +125 ℃ | 3 | ||
| High output voltage swing 10k | VOH | -8 | -12 | mV | RL = 10 kΩ (VS+ − value) | 4 | |
| High output voltage swing 600R | VOH | -125 | -180 | mV | RL = 600 Ω (VS+ − value) | 4 | |
| Low output voltage swing 10k | VOL | 6 | 9 | mV | RL = 10 kΩ (VS− + value) | 4 | |
| Low output voltage swing 600R | VOL | 90 | 130 | mV | RL = 600 Ω (VS− + value) | 4 | |
| Operating supply voltage | VS | 1.8 | 5.5 | V | TA = 0 to +70 ℃ | 4 | |
| Operating supply voltage | VS | 2 | 5.5 | V | TA = −40 to +125 ℃ | 4 | |
| Quiescent current per amplifier | IQ | 625 | 760 | μA | VS = 2.0 V | 4 | |
| Quiescent current per amplifier | IQ | 750 | 930 | μA | VS = 5.0 V | 4 | |
| Operating temperature range | TA | -40 | 125 | ℃ | 4 | ||
| Thermal resistance TSSOP-14L | θJA | 112 | ℃/W | TSSOP-14L | 4 | ||
| Supply voltage | VS+ to VS- | 10 | V | 2 | |||
| Signal input current | -10 | 10 | mA | Signal input terminals | 2 | ||
| Storage temperature | Tstg | -65 | 150 | ℃ | 2 | ||
| Junction temperature | TJ | 150 | ℃ | 2 | |||
| Lead temperature | 260 | ℃ | Soldering 10 sec | 2 | |||
| ESD HBM | -5000 | 5000 | V | per MIL-STD-883J / Method 3015.9 | 2 | ||
| ESD CDM | -2000 | 2000 | V | per ESDA/JEDEC JS-002-2014 | 2 | ||
| ESD MM | -250 | 250 | V | per JESD22-A115C | 2 | ||
| Gain bandwidth product | GBW | 11 | MHz | 3 | |||
| Slew rate | SR | 11 | V/μs | G = +1, CL = 100 pF, VO = 1.5 to 3.5 V | 3 | ||
| Short-circuit current | ISC | 75 | mA | ± | 4 |
CAD (KiCad official)
- Symbol:
LTC728XT14 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
ltc728xt14-etched.step/ltc728xt14-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltc728xt14.step/ltc728xt14.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Linearin datasheet (23 pp, sha256
2bbf871ddde45504, retrieved 2026-10-23, tier: lcsc) - 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).