component
XTR115U
Public Unreviewedby Ray
Texas Instruments Special Purpose Amplifiers, SOIC-8. Datasheet-verified pinout, 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
markdownXTR115U
Texas Instruments · Special Purpose Amplifiers · SOIC-8
XTR115U from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VREF | output | Precision voltage reference output. 2.5V on XTR115 (4.096V on XTR116). Used to excite sensors or provide offsets. |
| 2 | IIN | input | Current input pin to the internal control amplifier (A1). The loop output current is IO = 100 x IIN. |
| 3 | IRET | input | Local ground return pin for VREG and VREF currents. Used to sense and include the regulator/reference return current in the loop output for high accuracy. |
| 4 | IO | output | Regulated 4mA to 20mA current-loop output. Connects to the external pass transistor emitter path returning to the loop negative side. |
| 5 | E | input | External NPN pass transistor emitter connection. Provides the sense/feedback point for the loop current control loop. |
| 6 | B | output | External NPN pass transistor base drive output. Driven by the internal error amplifier to regulate loop current. |
| 7 | V+ | power_in | Loop power supply input. Operating range 7.5V to 36V (absolute max 40V). |
| 8 | VREG | power_out | 5V regulator voltage output, available to power external sensor/signal-conditioning circuitry from the loop supply. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
XTR115UU
CAD (KiCad official)
- Symbol:
XTR115U - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
fb298d4a78fc8212, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).