component
XTR105UA
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SOIC-14. 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
markdownXTR105UA
Texas Instruments · ADCs/DACs - Special Purpose · SOIC-14
XTR105UA from Texas Instruments, in a SOIC-14. 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 | IR1 | output | 800µA reference current output, channel 1 with accuracy of ±0.05% to ±0.4% depending on device variant. |
| 2 | VIN- | power_in | Negative (inverting) differential voltage input with common mode input range 1.25V to 3.5V. |
| 3 | RG | passive | Gain setting resistor pin; resistance between pins 3 and 4 determines voltage-to-current transfer gain IO = 4mA + VIN × (40/RG). |
| 4 | RG | passive | Gain setting resistor pin; resistance between pins 3 and 4 determines voltage-to-current transfer gain IO = 4mA + VIN × (40/RG). |
| 5 | NC | unconnected | No internal connection. |
| 6 | IRET | power_in | Local ground return pin for VREG, VLIN, IR1 and IR2; allows detection of external circuit current. |
| 7 | IO | output | Regulated 4mA to 20mA current loop output with output current range 4mA to 20mA and over-scale limit 24mA to 30mA. |
| 8 | E | input | External transistor emitter connection for output current regulation. |
| 9 | B | output | External transistor base connection for output current regulation. |
| 10 | V+ | power_in | Loop power supply, 7.5V to 36V referenced to IO pin. |
| 11 | VREG | power_out | 5.1V regulated voltage output with accuracy of ±0.02V to ±0.1V and maximum output current ±1mA. |
| 12 | VLIN | output | Linearity correction voltage output for second-order RTD compensation achieving 40:1 linear improvement. |
| 13 | VIN+ | power_in | Positive (non-inverting) differential voltage input with common mode input range 1.25V to 3.5V. |
| 14 | IR2 | output | 800µA reference current output, channel 2 with accuracy of ±0.05% to ±0.4% depending on device variant. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Data Acquisition |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
XTR105UA - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
xtr105ua-etched.step/xtr105ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xtr105ua.step/xtr105ua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
1ca04df9ee499ef7, retrieved 2026-09-18, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).