# OPA2170AIDCUT

**Texas Instruments** · Operational Amplifier · VSSOP-8

OPA2170AIDCUT from Texas Instruments, in a VSSOP-8. 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 A | output | Channel A output, which swings rail to rail and whose short-circuit current is continuous per the absolute maximum note (one amplifier shorted per package). |
| 2 | -IN A | input | Channel A inverting input; the common-mode range extends from 100 mV below V- to within 2 V of V+, and input current should be limited to 10 mA when the input is driven beyond the supply rails. |
| 3 | +IN A | input | Channel A non-inverting input; the common-mode range extends from 100 mV below V- to within 2 V of V+, and input current should be limited to 10 mA when the input is driven beyond the supply rails. |
| 4 | V- | power_in | Negative (lowest) power supply; the device operates from a 2.7 V to 36 V total supply (V+ - V-), or ±1.35 V to ±18 V. |
| 5 | +IN B | input | Channel B non-inverting input; the common-mode range extends from 100 mV below V- to within 2 V of V+, and input current should be limited to 10 mA when the input is driven beyond the supply rails. |
| 6 | -IN B | input | Channel B inverting input; the common-mode range extends from 100 mV below V- to within 2 V of V+, and input current should be limited to 10 mA when the input is driven beyond the supply rails. |
| 7 | OUT B | output | Channel B output, which swings rail to rail and whose short-circuit current is continuous per the absolute maximum note (one amplifier shorted per package). |
| 8 | V+ | power_in | Positive (highest) power supply; the recommended total supply is 2.7 V to 36 V and the absolute maximum single-supply voltage is 40 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## 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 | -1.8 | 0.25 | 1.8 | mV | TA = 25°C | 9 |
| Input offset voltage | VOS | -2 |  | 2 | mV | TA = –40°C 至 +125°C | 9 |
| Input offset voltage drift | dVOS/dT | -2 | 0.3 | 2 | µV/°C | TA = –40°C 至 +125°C | 9 |
| Input offset voltage vs power supply (PSRR) | PSRR | -5 | 1 | 5 | µV/V | VS = 4V 至 36V，TA = –40°C 至 +125°C | 9 |
| Input bias current | IB | -15 | 8 | 15 | pA | TA = 25°C | 9 |
| Input bias current | IB | -3.5 |  | 3.5 | nA | TA = –40°C 至 +125°C | 9 |
| Input offset current | IOS | -15 | 4 | 15 | pA | TA = 25°C | 9 |
| Input offset current | IOS | -3.5 |  | 3.5 | nA | TA = –40°C 至 +125°C | 9 |
| Common-mode rejection ratio | CMRR | 90 | 104 |  | dB | VS = ±2 V，(V–) - 0.1 V < VCM < (V+) - 2 V，TA = –40°C 至 +125°C | 9 |
| Common-mode rejection ratio | CMRR | 104 | 120 |  | dB | VS = ±18V，(V–) - 0.1V < VCM < (V+) - 2V，TA = –40°C 至 +125°C | 9 |
| Open-loop voltage gain | AOL | 110 | 130 |  | dB | VS = 4V 至 36V，(V–) + 0.35V < VO < (V+) - 0.35V，TA = –40°C 至 +125°C | 9 |
| Output voltage swing from positive rail | VO |  |  | 10 | mV | IL = 0mA，VS = 4V 至 36V | 10 |
| Output voltage swing from positive rail (sourcing) | IL |  |  | 115 | mV | 拉电流 1mA，VS = 4V 至 36V | 10 |
| Output voltage swing from negative rail | VO |  |  | 8 | mV | IL = 0 mA，VS = 4V 至 36V | 10 |
| Output voltage swing from negative rail (sinking) | IL |  |  | 70 | mV | 灌电流 1mA，VS = 4V 至 36V | 10 |
| Short-circuit current | ISC | -20 |  | 17 | mA |  | 10 |
| Rated supply voltage range | VS | 2.7 |  | 36 | V |  | 10 |
| Quiescent current per amplifier | IQ |  | 110 | 145 | µA | IO = 0A；TA = 25°C | 10 |
| Quiescent current per amplifier | IQ |  |  | 155 | µA | IO = 0A；TA = –40°C 至 +125°C | 10 |
| Rated temperature range |  | -40 |  | 125 | °C |  | 10 |
| Operating temperature range |  | -55 |  | 150 | °C |  | 10 |
| Junction-to-ambient thermal resistance (DCU) | RθJA |  | 175.2 |  | °C/W |  | 8 |
| Junction-to-case (top) thermal resistance (DCU) | RθJC(top) |  | 74.9 |  | °C/W |  | 8 |
| Junction-to-board thermal resistance (DCU) | RθJB |  | 22.2 |  | °C/W |  | 8 |
| Junction-to-top characterization parameter (DCU) | ψJT |  | 1.6 |  | °C/W |  | 8 |
| Junction-to-board characterization parameter (DCU) | ψJB |  | 22.8 |  | °C/W |  | 8 |

## CAD (KiCad official)

- Symbol: `OPA2170AIDCUT`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `opa2170aidcut-etched.step` / `opa2170aidcut-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2170aidcut.step` / `opa2170aidcut.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/opa4170) (64 pp, sha256 `094354bfd136e7d0`, retrieved 2026-10-10, 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-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/opa2170aidcut-datasheet.pdf)