component
UAF42AU
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, 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
markdownUAF42AU
Texas Instruments · ADCs/DACs - Special Purpose · SOIC-16-300mil
UAF42AU from Texas Instruments, in a SOIC-16-300mil. 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 | Low-Pass VO | output | Low-pass filter output of the state-variable filter, with ±11 V typical output swing into 2kΩ on the op amps and ±25 mA short-circuit current. |
| 2 | NC | unconnected | No connection; for best performance connect to ground to minimize inter-lead capacitance. |
| 3 | VIN3 | input | Filter summing input 3 (In3) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |
| 4 | VIN2 | input | Filter summing input 2 (In2) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |
| 5 | Auxiliary Op Amp, +In | input | Non-inverting input of the uncommitted FET-input auxiliary op amp, with input bias current 10 pA typical and common-mode range ±11.5 V. |
| 6 | Auxiliary Op Amp, -In | input | Inverting input of the uncommitted FET-input auxiliary op amp, used for additional stages or band-reject and inverse Chebyshev filters. |
| 7 | Auxiliary Op Amp, VO | output | Output of the uncommitted auxiliary op amp, with ±11 V minimum swing into 2kΩ and ±25 mA short-circuit current. |
| 8 | Bandpass VO | output | Band-pass filter output of the state-variable filter. |
| 9 | Frequency Adj1 | passive | Frequency adjust node for the first integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor. |
| 10 | V- | power_in | Negative supply, operating range -6 V to -18 V (absolute maximum ±18 V). |
| 11 | V+ | power_in | Positive supply, operating range +6 V to +18 V (absolute maximum ±18 V). |
| 12 | Ground | power_in | Ground reference for the filter. |
| 13 | VIN1 | input | Filter summing input 1 (In1) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |
| 14 | High-Pass VO | output | High-pass filter output of the state-variable filter. |
| 15 | NC | unconnected | No connection; for best performance connect to ground to minimize inter-lead capacitance. |
| 16 | Frequency Adj2 | passive | Frequency adjust node for the second integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Data Acquisition |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UAF42AU - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
uaf42au-etched.step/uaf42au-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uaf42au.step/uaf42au.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (16 pp, sha256
47c8145278cd4cf9, retrieved 2026-10-07, tier: lcsc) - 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).