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Contents

README

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THS4541IRGTT

Texas Instruments · Differential Amplifiers · VQFN-16-EP(3x3)

THS4541IRGTT from Texas Instruments, in a VQFN-16-EP(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 FB- output Negative feedback output; connect through external feedback resistor (Rf) to IN+ for signal path configuration; differential output feedback node.
2 IN+ input Positive amplifier input; common mode input range (Vs-) to (Vs+) with ≈1.3V margin below positive supply; accepts differential or single-ended signals.
3 IN- input Negative amplifier input; common mode range extends to (Vs-) - 0.1V minimum; must maintain input impedance balance with IN+ for best performance.
4 FB+ output Positive feedback output; connect through feedback resistor (Rf) to IN- for gain setting; feedback path for FDA configuration.
5 Vs+ power_in Positive power supply input (one of four pins); connect to 2.7V to 5.4V supply with 0.1µF bypass capacitor <0.1" to ground; supports single or dual supply operation.
6 Vs+ power_in Positive power supply input (one of four pins); multiple supply pins reduce inductance; typical single supply 3V to 5V; absolute maximum (Vs+) - (Vs-) = 5.5V.
7 Vs+ power_in Positive power supply input (one of four pins); use for low-inductance power distribution; share larger bypass capacitors (2.2µF) across multiple supply pins.
8 Vs+ power_in Positive power supply input (one of four pins); return path for output stage current; connect to positive supply through decoupling network.
9 Vocm input Common mode output voltage control input; operating range 0.91V to 1.1V margin from supply rails; leave open for default 1/2 Vs or drive with voltage reference; 47kΩ input impedance.
10 OUT+ output Positive amplifier output (rail-to-rail); output voltage swing limited to ≈0.2V margin from each supply rail; capable of ±75mA output current at 25°C.
11 OUT- output Negative amplifier output (rail-to-rail); output common mode voltage set by Vocm input; differential output centered on Vocm for direct ADC interfacing.
12 PD input Power down control input; set ≥(Vs-) + 1.7V for normal operation, ≤(Vs-) + 0.7V for shutdown with ≈2µA static current; CMOS logic input, do not leave floating.
13 Vs- power_in Negative power supply input (one of four pins); typically ground in single supply operation, ≤ -2.7V in dual supply mode; use multiple pins for ground distribution.
14 Vs- power_in Negative power supply input (one of four pins); minimum supply voltage (Vs+) - (Vs-) = 2.7V, maximum 5.5V; connect to ground plane for low impedance.
15 Vs- power_in Negative power supply input (one of four pins); part of differential power supply; share with other ground pins for reduced return path inductance.
16 Vs- power_in Negative power supply input (one of four pins); reference for input and output voltage swings; connect to continuous ground plane with via array.
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-EP(3x3)
Category Amplifiers/Comparators
Pins 17

CAD (KiCad official)

  • Symbol: THS4541IRGTT
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: ths4541irgtt-etched.step / ths4541irgtt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ths4541irgtt.step / ths4541irgtt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (67 pp, sha256 7b53ae5aaa38c66d, retrieved 2026-10-07, 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-4-5-20251001 (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