component
OPA858IDSGR
Public Made by Adomby adom
Texas Instruments FET InputAmplifiers, WSON-8-EP(2x2). 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
markdownOPA858IDSGR
Texas Instruments · FET InputAmplifiers · WSON-8-EP(2x2)
OPA858IDSGR from Texas Instruments, in a WSON-8-EP(2x2). 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 | FB | passive | Feedback connection to the amplifier output. Dedicated pin brought out to simplify the input-to-output feedback network for transimpedance-amplifier layouts. |
| 2 | NC | unconnected | No internal connection. Do not connect. |
| 3 | IN- | input | Inverting input of the op-amp. High-impedance CMOS FET input (differential input resistance 1 GΩ, differential input capacitance 0.2 pF). |
| 4 | IN+ | input | Noninverting input of the op-amp. High-impedance CMOS FET input; common-mode range extends from V(S-) to within ~1.4 V of V(S+). |
| 5 | VS- | power_in | Negative voltage supply. Total supply (V(S+) − V(S-)) range is 3.3 V to 5.25 V (5.5 V absolute max). Thermal pad is internally connected here. |
| 6 | OUT | output | Amplifier output. Drives ±100 mA continuous with a closed-loop output impedance of ~0.15 Ω at 1 MHz. |
| 7 | VS+ | power_in | Positive voltage supply. Total supply (V(S+) − V(S-)) range is 3.3 V to 5.25 V. Quiescent current is ~20.5 mA. |
| 8 | PD | input | Active-low power-down control (PD, overbar). PD = logic low → power-off / shutdown mode; PD = logic high → normal operation. |
| 9 | EP | power_in | Exposed thermal pad on package bottom. Must be connected to VS- for proper electrical operation and thermal dissipation (R(θJC,bot) = 22.7 °C/W). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8-EP(2x2) |
| Category | Op-amp/Cmp |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
OPA858IDSGROPA858IDSGT
CAD (KiCad official)
- Symbol:
OPA858IDSGR - Footprint:
Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm - 3D model: WSON-8-EP(2x2) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
f9314849dba657e8, retrieved 2026-08-17, tier: manufacturer) - 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).