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Contents

README

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BUF802IRGTR

Texas Instruments · FET Input Amplifiers · VQFN-16(3x3)

BUF802IRGTR 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 VS+ power_in Positive supply connection for the input stage; dual supply range is ±4.5 V to ±6.5 V and VS = (VS+) − (VS−) must not exceed 14 V absolute maximum.
2 IN input Signal input of the JFET input stage, rated for voltages from (VS−) − 0.5 V up to (VS+) V and used directly in buffer mode.
3 In_Bias input JFET bias pin that is used only in composite-loop mode and should be left unconnected in buffer mode.
4 In_Aux input Auxiliary input that controls the output through the auxiliary path in composite-loop mode and should be left unconnected in buffer mode.
5 VS- power_in Negative supply connection for the input stage, internally shorted to pin 8.
6 Aux_Bias passive Must be connected to VS- to enable output control through In_Aux in composite-loop mode.
7 R_Bias input Output-stage bias setting pin; a resistor between R_Bias and VS- sets the quiescent current, with 17.8 kΩ used for the wide-bandwidth test condition.
8 VS- power_in Negative supply connection for the input stage, internally shorted to pin 5.
9 NC unconnected No internal connection.
10 VSO- power_in Negative supply connection for the output stage; must be held at the same potential as VS- because the two are internally tied through back-to-back diodes.
11 OUT output Buffered signal output that drives loads down to 50 Ω, with output voltage limited by the CLH and CLL clamp pins when internal clamps are enabled.
12 VSO+ power_in Positive supply connection for the output stage; must be held at the same potential as VS+ because the two are internally tied through back-to-back diodes.
13 NC unconnected No internal connection.
14 CLL input Sets the negative output clamp voltage and is used only in composite-loop mode; it should be left unconnected in buffer mode, and tying it to VS- disables the internal clamp.
15 CLH input Sets the positive output clamp voltage and is used only in composite-loop mode; it should be left unconnected in buffer mode, and tying it to VS+ disables the internal clamp.
16 NC unconnected No internal connection.
17 Thermal pad passive Thermal pad is electrically isolated from the die and all pins and may be connected to any potential for heat dissipation.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-16(3x3)
Category Amplifiers/Comparators
Pins 17

CAD (KiCad official)

  • Symbol: BUF802IRGTR
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: VQFN-16(3x3) (KiCad packages3D, STEP)
  • 3D model files: buf802irgtr-etched.step / buf802irgtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); buf802irgtr.step / buf802irgtr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 8030ec533a0ed4d9, retrieved 2026-10-18, 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF