component
OPA857IRGTR
Public Made by Adomby adom
Texas Instruments Special Purpose Amplifiers, VQFN-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownOPA857IRGTR
Texas Instruments · Special Purpose Amplifiers · VQFN-16(3x3)
OPA857IRGTR from Texas Instruments, in a VQFN-16(3x3). 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 | GND | power_in | Ground connection. |
| 2 | CTRL | input | Control input to select transimpedance gain: GND (logic 0) selects 5-kΩ internal resistance, +VS (logic 1) selects 20-kΩ internal resistance. |
| 3 | GND | power_in | Ground connection. |
| 4 | GND | power_in | Ground connection. |
| 5 | OUTN | output | Common-mode voltage output reference with 25-Ω series internal resistor. |
| 6 | GND | power_in | Ground connection. |
| 7 | GND | power_in | Ground connection. |
| 8 | OUT | output | Signal output with 25-Ω series internal resistor limiting load current. |
| 9 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |
| 10 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |
| 11 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |
| 12 | GND | power_in | Ground connection. |
| 13 | Test_SD | input | Test mode enable pin; connect to GND for normal operation, connect to +VS to enable test mode. |
| 14 | Test_IN | input | Test mode input; connect to +VS during normal operation. |
| 15 | IN | input | Transimpedance amplifier input with internal protection diodes, maximum 10-mA input current. |
| 16 | NC | unconnected | Not connected. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-16(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
OPA857IRGTR - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: VQFN-16(3x3) (KiCad packages3D, STEP)
- 3D model files:
opa857irgtr-etched.step/opa857irgtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa857irgtr.step/opa857irgtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
345c9fe5e4bb5ed7, retrieved 2026-10-05, 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-4-5-20251001(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).