# AD8641AKSZ-REEL7

**Tokmas** · Precision Op Amps · SOT-23-5L

AD8641AKSZ-REEL7 from Tokmas, in a SOT-23-5L. 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 | OUT | output | Amplifier output. |
| 2 | -VS | power_in | Negative power supply, normally tied to ground; it may be tied to another voltage as long as the voltage between VS+ and VS- is 4.5 V to 48 V. |
| 3 | +IN | input | Non-inverting amplifier input with a common-mode voltage range from VS- to VS+ - 1.5 V. |
| 4 | -IN | input | Inverting amplifier input with a voltage range from VS- to VS+ - 1.5 V. |
| 5 | +VS | power_in | Positive power supply, 4.5 V to 48 V (split supplies allowed as long as VS+ to VS- is 4.5 V to 48 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Tokmas |
| Package | SOT-23-5L |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input offset voltage | VOS | -350 | 75 | 350 | μV |  | 3 |
| Offset voltage drift | VOS TC | -1.5 |  | 1.5 | μV/ºC | TA = −40 to +125 °C | 3 |
| Operating supply voltage | VS | 4.5 |  | 48 | V | TA = −40 to +125 ℃ | 4 |
| Operating temperature range | TA | -40 |  | 125 | ºC |  | 4 |
| Short-circuit current | ISC | -45 |  | 45 | mA |  | 4 |
| Supply Voltage, VS+ to VS- |  |  |  | 60 | V |  | 2 |
| Signal Input Terminals: Current |  | -10 |  | 10 | mA |  | 2 |
| Storage Temperature Range | Tstg | -65 |  | 150 | ℃ |  | 2 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 2 |
| Lead Temperature Range |  |  |  | 260 | ℃ | Soldering 10 sec | 2 |
| Electrostatic Discharge Voltage, Human body model (HBM) |  |  |  | 2000 | V | per MIL-STD-883J / Method 3015.9 | 2 |
| Electrostatic Discharge Voltage, Charged device model (CDM) |  |  |  | 2000 | V | per ESDA/JEDEC JS-002-2014 | 2 |
| Input bias current | IB |  | 10 |  | pA |  | 3 |
| Input bias current | IB |  | 150 |  | pA | TA = −40 to +85 ℃ | 3 |
| Input bias current | IB |  | 600 |  | pA | TA = −40 to +125 ℃ | 3 |
| Input offset current | IOS |  | 5 |  | pA |  | 3 |
| Power supply rejection ratio | PSRR |  | 3.5 |  | μV/V | VS = 4.5 to 48 V, VCM = 0.1 V | 3 |
| Power supply rejection ratio | PSRR |  | 10 |  | μV/V | TA = −40 to +125 °C | 3 |
| Input voltage noise (0.1 to 10 Hz) | Vn |  | 4.6 |  | μVP-P | f = 0.1 to 10 Hz | 3 |
| Input voltage noise density | en |  | 15 |  | nV/√Hz | f = 1 kHz | 3 |
| Input voltage noise density | en |  | 12 |  | nV/√Hz | f = 10 kHz | 3 |
| Input current noise density | In |  | 5 |  | fA/√Hz | f = 1 kHz | 3 |
| Common-mode rejection ratio | CMRR |  | 115 |  | dB | VS = 40 V, VCM = 0 to 38 V | 3 |
| Common-mode rejection ratio | CMRR |  | 103 |  | dB | VCM = 0.1 to 38 V, TA = −40 to +125 °C | 3 |
| Common-mode rejection ratio | CMRR |  | 96 |  | dB | VS = 5.0 V, VCM = 0 to 3 V | 3 |
| Common-mode rejection ratio | CMRR |  | 84 |  | dB | VCM = 0.1 to 3 V, TA = −40 to +125 °C | 3 |
| Input capacitance | CIN |  | 2 |  | pF | Differential | 3 |
| Input capacitance | CIN |  | 3.5 |  | pF | Common mode | 3 |
| Open-loop voltage gain | AVOL |  | 130 |  | dB | VS = 40 V, VO = 0.1 to 39.9 V | 3 |
| Open-loop voltage gain | AVOL |  | 120 |  | dB | TA = −40 to +125 °C | 3 |
| Open-loop voltage gain | AVOL |  | 122 |  | dB | VS = 5 V, VO = 0.1 to 4.9 V | 3 |
| Open-loop voltage gain | AVOL |  | 112 |  | dB | TA = −40 to +125 °C | 3 |
| Gain bandwidth product | GBW |  | 4 |  | MHz |  | 3 |
| Slew rate | SR |  | 3 |  | V/μs | VS = 40 V, G = +1, 10 V step | 3 |
| Total harmonic distortion + noise | THD+N |  | 0.0003 |  | % | G = +1, f = 1 kHz, VO = 3 VRMS | 3 |
| Settling time | tS |  | 3.6 |  | μs | To 0.1%, VS = 40 V, G = +1, 5 V step | 3 |
| Settling time | tS |  | 7 |  | μs | To 0.01%, VS = 40 V, G = +1, 5 V step | 3 |
| Overload recovery time | tOR |  | 1.2 |  | μs | VIN × Gain > VS | 3 |
| Quiescent current (per amplifier) | IQ |  | 535 |  | μA | VS = 5 V | 4 |
| Quiescent current (per amplifier) | IQ |  | 620 |  | μA | VS = 40 V | 4 |
| Package Thermal Resistance | θJA |  | 190 |  | ºC/W | SOT23-5L | 4 |

## CAD (KiCad official)

- Symbol: `AD8641AKSZ-REEL7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `ad8641aksz-reel7-etched.step` / `ad8641aksz-reel7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad8641aksz-reel7.step` / `ad8641aksz-reel7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Tokmas datasheet](docs/ad8641aksz-reel7-datasheet.pdf) (12 pp, sha256 `6a669392d9479cea`, retrieved 2026-10-18, tier: lcsc)
- **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](docs/ad8641aksz-reel7-datasheet.pdf)