INA818IDR

@@ -0,0 +1,49 @@+# INA818IDR++**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)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ina818.pdf) (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).++[Datasheet PDF](docs/ina818idr-datasheet.pdf)

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