component
LF398N
Public Made by Adomby adom
Texas Instruments Sample / Hold Amplifiers, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownLF398N
Texas Instruments · Sample / Hold Amplifiers · PDIP-8
LF398N from Texas Instruments, in a PDIP-8. 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 | V+ | power_in | Positive supply; the device operates from ±5 V to ±18 V, with ±15 V as the recommended nominal supply. |
| 2 | OFFSET ADJUST | passive | DC offset compensation pin used to adjust the input offset voltage. |
| 3 | INPUT | input | Analog signal input to the sample-and-hold amplifier. |
| 4 | V- | power_in | Negative supply; the device operates from ±5 V to ±18 V, with ±15 V as the recommended nominal supply. |
| 5 | OUTPUT | output | Analog sample-and-hold output. |
| 6 | Ch | passive | Hold capacitor connection; the hold capacitor is connected to this pin, and its short-circuit duration is limited to 10 seconds. |
| 7 | LOGIC REFERENCE | input | Reference input for the LOGIC input; one of the logic pins must be at least 2 V below V+ and 3 V above V- for proper logic operation. |
| 8 | LOGIC | input | Logic input that selects sample mode or hold mode; it is compatible with TTL, PMOS and CMOS levels with a differential threshold of 1.4 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LF398N - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
lf398n-etched.step/lf398n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lf398n.step/lf398n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
2119fa6b79e75b65, retrieved 2026-10-10, 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-haiku-5-5(text), consensusclaude-sonnet-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).