ths4551irgtr

@@ -0,0 +1,62 @@+# THS4551IRGTR++**Texas Instruments** · Differential OpAmps · QFN-16-EP(3x3)++THS4551IRGTR from Texas Instruments, in a QFN-16-EP(3x3). 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- | output | Inverting (negative) output feedback tap. Internally routed from the OUT- output through a trimmed ~3.5 Ω internal feedback trace; use in gain networks that require the internal feedback path (RGT package only). |+| 2 | IN+ | input | Noninverting (positive) amplifier input. High-impedance analog input to the fully differential amplifier; input common-mode range extends to the negative supply rail (NRI). |+| 3 | IN- | input | Inverting (negative) amplifier input. High-impedance analog input to the fully differential amplifier; input common-mode range extends to the negative supply rail (NRI). |+| 4 | FB+ | output | Noninverting (positive) output feedback tap. Internally routed from the OUT+ output through a trimmed ~3.5 Ω internal feedback trace; use in gain networks that require the internal feedback path (RGT package only). |+| 5 | VS+ | power_in | Positive power-supply input. Single-supply operation 2.7 V to 5.4 V, or split-supply. Bypass to VS- with 100 nF close to the pin; typical IQ = 1.37 mA at 5 V. |+| 6 | VS+ | power_in | Positive power-supply input (tied internally with other VS+ pins). Single-supply operation 2.7 V to 5.4 V. Tie to pins 5, 7, 8. |+| 7 | VS+ | power_in | Positive power-supply input (tied internally with other VS+ pins). Single-supply operation 2.7 V to 5.4 V. Tie to pins 5, 6, 8. |+| 8 | VS+ | power_in | Positive power-supply input (tied internally with other VS+ pins). Single-supply operation 2.7 V to 5.4 V. Tie to pins 5, 6, 7. |+| 9 | VOCM | input | Output common-mode voltage control input. Sets the DC common-mode level of OUT+ and OUT-. Leave open to default to midsupply, or drive from an ADC VREF/2 output; wide range supports 0.7 V to 3.0 V common-mode requirements. |+| 10 | OUT+ | output | Noninverting (positive) amplifier output. Rail-to-rail output; drives ADC inputs directly. Continuous output current ±60 mA typ at ±2.5 V, RL = 40 Ω. |+| 11 | OUT- | output | Inverting (negative) amplifier output. Rail-to-rail output; drives ADC inputs directly. Continuous output current ±60 mA typ at ±2.5 V, RL = 40 Ω. |+| 12 | PD | input | Power-down control input. PD logic low = shutdown; PD logic high = normal operation. Enable threshold above (VS-)+1.15 V, disable threshold below (VS-)+0.55 V. Do not float - tie to VS+ for always-on. |+| 13 | VS- | power_in | Negative power-supply input (tied internally with other VS- pins). Ground for single-supply operation, or negative rail for split-supply. Tie to pins 14, 15, 16. |+| 14 | VS- | power_in | Negative power-supply input (tied internally with other VS- pins). Ground for single-supply operation, or negative rail for split-supply. Tie to pins 13, 15, 16. |+| 15 | VS- | power_in | Negative power-supply input (tied internally with other VS- pins). Ground for single-supply operation, or negative rail for split-supply. Tie to pins 13, 14, 16. |+| 16 | VS- | power_in | Negative power-supply input (tied internally with other VS- pins). Ground for single-supply operation, or negative rail for split-supply. Tie to pins 13, 14, 15. |+| 17 | EP | passive | Exposed thermal pad (bottom side). Electrically isolated from the die but must be soldered to a heat-spreading power or ground plane; do not float. Improves thermal dissipation (RθJC(bot) = 12 °C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QFN-16-EP(3x3) |+| Category | Op-amp/Cmp |+| Pins | 17 |++## Ordering variants++- `THS4551IRGTR`+- `THS4551IRGTRIRGTT`+- `THS4551IRGTRIRUNR`+- `THS4551IRGTRIRUNT`+- `THS4551IRGTRIDGKR`+- `THS4551IRGTRIDGKT`++## CAD (KiCad official)++- Symbol: `THS4551IRGTR`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: QFN-16-EP(3x3) (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/ths4551i.pdf) (None pp, sha256 `f1d7ab87169a4112`, 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).++[Datasheet PDF](docs/ths4551irgtr-datasheet.pdf)

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