component
INA149AMDREP
Public Made by Adomby adom
Texas Instruments Differential Amplifiers, SOIC-8. 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
markdownINA149AMDREP
Texas Instruments · Differential Amplifiers · SOIC-8
INA149AMDREP from Texas Instruments, in a SOIC-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 | REFB | input | Reference input that sets the output as VOUT = (+IN) - (-IN) + 20 × REFA - 19 × REFB; voltages on REFA and REFB must stay within (V-) - 0.3 V to (V+) + 0.3 V, and signals swinging more than 0.3 V beyond the rails should be limited to 10 mA. |
| 2 | -IN | input | Inverting input with a ±275 V common-mode voltage range, a ±13.5 V differential voltage range, and protection to ±500 V common-mode or differential. |
| 3 | +IN | input | Noninverting input with a ±275 V common-mode voltage range, a ±13.5 V differential voltage range, and protection to ±500 V common-mode or differential. |
| 4 | V- | power_in | Negative power supply; (V+) - (V-) is VS, specified from ±2 V to ±18 V, with 40 V absolute maximum across the supply pins. |
| 5 | REFA | input | Reference input that sets the output as VOUT = (+IN) - (-IN) + 20 × REFA - 19 × REFB; voltages on REFA and REFB must stay within (V-) - 0.3 V to (V+) + 0.3 V, and signals swinging more than 0.3 V beyond the rails should be limited to 10 mA. |
| 6 | VOUT | output | Output with a ±13.5 V voltage range at ±15 V supplies, ±25 mA short-circuit current, and no sustained oscillation with up to 10 nF capacitive load. |
| 7 | V+ | power_in | Positive power supply; (V+) - (V-) is VS, specified from ±2 V to ±18 V, with 40 V absolute maximum across the supply pins. |
| 8 | NC | unconnected | No internal connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
INA149AMDREP - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ina149amdrep-etched.step/ina149amdrep-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina149amdrep.step/ina149amdrep.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
ba6f46c8521f3117, retrieved 2026-10-12, 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).