component
INA818IDR
Public Made by Adomby adom
Texas Instruments Instrumentation OpAmps, SOIC-8. Pinout extracted from 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
markdownINA818IDR
Texas Instruments · Instrumentation OpAmps · SOIC-8
INA818IDR 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 | RG | passive | Gain-setting pin. Place an external gain resistor R_G between pin 1 and pin 8. Gain = 1 + 50 kOhm / R_G. |
| 2 | -IN | input | Negative (inverting) differential input. Absolute maximum +/-60 V; recommended common-mode within (V-)+2 V to (V+)-2 V. |
| 3 | +IN | input | Positive (noninverting) differential input. Absolute maximum +/-60 V; recommended common-mode within (V-)+2 V to (V+)-2 V. |
| 4 | -VS | power_in | Negative supply rail. Dual-supply range -2.25 V to -18 V, or connect to GND for single-supply operation up to 36 V total. |
| 5 | REF | input | Reference input that sets the output common-mode. Must be driven by a low-impedance source (input impedance ~40 kOhm, gain-to-output = 1 V/V). Absolute maximum +/-20 V. |
| 6 | OUT | output | Amplifier output. Swings within 0.15 V of the supply rails; short-circuit current +/-20 mA continuous to V_S/2; closed-loop output impedance ~5 Ohm at 10 kHz. |
| 7 | +VS | power_in | Positive supply rail. Single-supply 4.5 V to 36 V, or dual-supply +2.25 V to +18 V. Quiescent current 350 uA typical, 385 uA maximum. |
| 8 | RG | passive | Gain-setting pin. Place an external gain resistor R_G between pin 1 and pin 8. Gain = 1 + 50 kOhm / R_G. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Operational Amplifier/Comparator |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
INA818IDR
CAD (KiCad official)
- Symbol:
INA818IDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ina818idr-etched.step/ina818idr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina818idr.step/ina818idr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
feb8dc20fee5f48e, retrieved 2026-08-17, tier: manufacturer) - 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).