Part Info Audit
Thought for 8 sec
I’ll audit the part metadata, locate the official datasheet if needed, update the Datasheet property, then cross-check the symbol, footprint, and pin descriptions against the source.
Worked for 1 min 41 sec
I’m reading the part project’s source metadata and geometry now, then I’ll validate it against the manufacturer documentation.
Worked for 3 mins 12 sec
Created a project doc
Part Information Audit — THAT 2180AL08-U
Official manufacturer datasheet: https://thatcorp.com/datashts/THAT_2180-Series_Datasheet.pdf Document: THAT 2180 Series, Document 600029 Re...
Audit complete. The MPN, manufacturer, 8-SIP package, eight-pin mapping, 2.54 mm pitch, body dimensions, and pad span match the official THAT Corporation datasheet; the existing Datasheet URL was valid, so no update was needed.
Flagged issues: missing pin descriptions, all pin types set to
Unspecified, and potentially disabled footprint silkscreen. Full specifications and comparisons are in Part Information Audit.Fix metadata issues
Add pin descriptions
Set pin types
Check silkscreen
Normalize description
Refine this doc
Ask about this doc
Part Information Audit — THAT 2180AL08-U
Source
- Official manufacturer datasheet: https://thatcorp.com/datashts/THAT_2180-Series_Datasheet.pdf
- Document: THAT 2180 Series, Document 600029 Rev 02
- The project already had a Datasheet URL set to an uploaded copy of the same datasheet, so no Datasheet property change was required.
Metadata Review
Table
| Field | Project value | Datasheet cross-check | Result |
|---|---|---|---|
| Manufacturer part number | 2180AL08-U | Table 2 lists 2180AL08-U | Match |
| Manufacturer | THAT CORPORATION | THAT Corporation | Match |
| Description | Audio Amplifiers Pre-Trimmed VCA SIP-8 | Blackmer pre-trimmed IC VCA | Functionally correct; could be more specific |
| Part type | Integrated Circuit | IC voltage-controlled amplifier | Match |
| Package | 8-SIP | Plastic 8-pin SIP, ordering suffix L08 | Match |
| Pin count | 8 | 8 pins | Match |
| Designator prefix | IC | Integrated circuit | Reasonable |
Pin and Symbol Cross-check
Table
| Pin | Project name | Datasheet name | Function | Result |
|---|---|---|---|---|
| 1 | INPUT | Input | Current input / virtual-ground node | Match |
| 2 | EC+ | EC+ | Positive-sense gain-control input | Match |
| 3 | EC- | EC- | Negative-sense gain-control input | Match |
| 4 | SYM | Sym | Symmetry/trim pin; leave open for the pre-trimmed 2180 | Match |
| 5 | V- | V- | Bias-current terminal; not a conventional negative supply pin | Name matches, but description is missing and the name can be misleading without it |
| 6 | GND | Gnd | Ground reference | Match |
| 7 | V+ | V+ | Positive supply | Match |
| 8 | OUTPUT | Output | Current output intended for a virtual-ground I/V converter | Match |
The pin numbering and symbol labels exactly follow Table 1. However, all eight terminal
Pin Type values are Unspecified, and no Pin Description properties are populated. This loses important electrical intent, especially for pins 1, 5, and 8, which are current-domain nodes rather than ordinary voltage input/supply/output pins.Footprint Cross-check
The footprint is a straight, through-hole, single-row 8-pin SIP.
Table
| Feature | Footprint | Datasheet | Result |
|---|---|---|---|
| Pin pitch | 2.54 mm | 2.54 mm typical | Match |
| Pin 1-to-8 span | 17.78 mm | 17.78 mm nominal | Match |
| Body length | 19.50 mm | 19.50 +0.20/-0 mm | Match |
| Body thickness | 2.80 mm | 2.80 +0.10/-0 mm | Match |
| Pad count | 8 | 8 | Match |
| Mount style | Through-hole | Plastic SIP | Match |
| Pad 1 marker | Rectangular pad and left-side marker | Pin 1 at end of package | Appropriate |
| Hole / pad | 1.10 mm drill, 1.65 mm pad | Lead dimensions shown, but no recommended PCB land pattern | Plausible; not directly manufacturer-validated |
Footprint flags
- The main mechanical geometry and pad spacing match the datasheet.
- The manufacturer datasheet gives package/lead dimensions but does not provide a recommended PCB land pattern. The 1.10 mm finished-hole choice is therefore a library design choice rather than a directly specified value. It appears reasonable for the stated lead envelope, but fabrication tolerance and soldering process should be considered.
- The imported combined
Silk Shapesnode is disabled in the current Flux footprint. The underlying KiCad asset contains body-edge silkscreen and a pin-1 marker, but the effective Flux geometry may not display those lines. Pad 1 remains rectangular, so orientation is still identifiable. - The 3D model asset exists, but dimensional alignment was not established from structured model geometry during this audit.
Key Specifications — 2180A Grade
- Function: pre-trimmed exponential voltage-controlled amplifier; signal input and output are currents.
- Package: lead-free/RoHS 8-pin plastic SIP.
- Recommended supply rails: VCC +4 to +18 V; VEE -4 to -18 V; typical ±15 V.
- Bias current ISET: 1 to 5 mA, 2.4 mA typical.
- Recommended signal current, IIN + IOUT: 0.35 mArms typical, 1.5 mArms maximum at ISET = 2.4 mA.
- Gain-control constant: approximately +6.1 mV/dB at EC+ or -6.1 mV/dB at EC-.
- Gain range: greater than 130 dB; specified control linearity over -60 to +40 dB gain.
- THD at 1 kHz, 0 dB gain: 0.005% typical, 0.010% maximum for 2180A.
- Output noise at 0 dB gain, 20 Hz–20 kHz: -98 dBV typical.
- Off isolation at 1 kHz: 110 dB minimum, 115 dB typical.
- Slew rate: 12 V/µs typical with 20 kΩ input/output resistors.
- Operating temperature: 0 to +70 °C.
- Absolute supply limits: +20 V and -20 V.
- Thermal resistance: 100 °C/W typical for SIP soldered to a board.
Mismatches and Recommended Corrections
Confirmed data-quality issues
- Missing pin descriptions: all terminals lack functional descriptions. Add datasheet-derived descriptions, particularly warning that V- is a bias-current node, Input/Output are current-domain virtual-ground nodes, and Sym should normally remain open.
- Unspecified pin types: all terminals are marked
Unspecified. Assigning suitable electrical types would improve ERC behavior, though the unusual current-mode pins may require conservative/passive classifications. - Silkscreen visibility: effective Silk Shapes are disabled. Review the footprint visually and restore a clean body outline plus pin-1 marker if absent.
Minor metadata improvement
- The description is broadly correct but could be normalized to: “Blackmer pre-trimmed voltage-controlled amplifier, 2180A grade, 8-pin SIP.”
No mismatch found
- MPN, manufacturer, package family, pad count, pin numbering, pin names, pitch, body length, body thickness, and pin span agree with the official datasheet.
Source
Metadata Review
Pin and Symbol Cross-check
Footprint Cross-check
Footprint flags
Key Specifications — 2180A Grade
Mismatches and Recommended Corrections
Confirmed data-quality issues
Minor metadata improvement
No mismatch found
