# OPA2171MDCUTEP

**Texas Instruments** · Operational Amplifier · VSSOP-8-0.5mm

OPA2171MDCUTEP from Texas Instruments, in a VSSOP-8-0.5mm. 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 | Output of channel A, which swings to within 0.35 V of the rails (V-)+0.35 V to (V+)-0.35 V at RL = 10 kΩ and has a short-circuit current of +25/-35 mA. |
| 2 | -IN A | input | Inverting input of channel A; the input common-mode range is (V-) - 0.1 V to (V+) - 2 V, and it can extend up to V+ with reduced performance. |
| 3 | +IN A | input | Noninverting input of channel A; the input common-mode range is (V-) - 0.1 V to (V+) - 2 V, and it can extend up to V+ with reduced performance. |
| 4 | V- | power_in | Negative (lowest) power supply; the total supply voltage (V+ - V-) is specified from 4.5 V (±2.25 V) to 36 V (±18 V). |
| 5 | +IN B | input | Noninverting input of channel B; the input common-mode range is (V-) - 0.1 V to (V+) - 2 V, and it can extend up to V+ with reduced performance. |
| 6 | -IN B | input | Inverting input of channel B; the input common-mode range is (V-) - 0.1 V to (V+) - 2 V, and it can extend up to V+ with reduced performance. |
| 7 | OUT B | output | Output of channel B, which swings to within 0.35 V of the rails (V-)+0.35 V to (V+)-0.35 V at RL = 10 kΩ and has a short-circuit current of +25/-35 mA. |
| 8 | V+ | power_in | Positive (highest) power supply; the total supply voltage (V+ - V-) is specified from 4.5 V (±2.25 V) to 36 V (±18 V), with an absolute maximum supply of ±20 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.5mm |
| 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 |  | 5 |
| Input offset voltage, over temperature |  | -2 | 0.3 | 2 | mV | TJ = –55°C to 125°C | 5 |
| Power supply rejection ratio | PSRR | -5 | 1 | 5 | µV/V | VS = 4 to 36 V, TA = –55°C to 125°C | 5 |
| Input bias current | IB | -15 | 8 | 15 | pA |  | 5 |
| Input bias current, over temperature |  | -4 |  | 4 | nA | TJ = –55°C to 125°C | 5 |
| Input offset current, over temperature |  | -4 |  | 4 | nA | TJ = –55°C to 125°C | 5 |
| Common-mode rejection ratio | CMRR | 87 | 104 |  | dB | VS = ±2 V, (V–) – 0.1 V < VCM < (V+) – 2 V, TJ = –55°C to 125°C | 5 |
| Common-mode rejection ratio | CMRR | 104 | 120 |  | dB | VS = ±18 V, (V–) – 0.1 V < VCM < (V+) – 2 V, TJ = –55°C to 125°C | 5 |
| Open-loop voltage gain | AOL | 110 | 130 |  | dB | VS = 4 to 36 V, (V–) + 0.35 V < VO < (V+) – 0.35 V, TJ = –55°C to 125°C | 5 |
| Short-circuit current | ISC | -35 |  | 25 | mA |  | 5 |
| Specified voltage range | VS | 2.7 |  | 36 | V |  | 6 |
| Quiescent current per amplifier | IQ |  | 475 | 595 | µA | IO = 0 A | 6 |
| Quiescent current per amplifier, over temperature | IQ |  |  | 650 | µA | IO = 0 A, TJ = –55°C to 125°C | 6 |
| Supply voltage |  | -20 |  | 20 | V |  | 4 |
| Signal input pins current |  | -10 |  | 10 | mA |  | 4 |
| Junction temperature |  |  |  | 150 | °C |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Supply voltage (V+ – V–) |  | 4.5 |  | 36 | V | Over operating free-air temperature range | 4 |
| Operating temperature | TJ | -55 |  | 125 | °C |  | 4 |
| Junction-to-ambient thermal resistance | RθJA |  | 175.2 |  | °C/W | DCU (VSSOP) 8 pins | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 74.9 |  | °C/W | DCU (VSSOP) 8 pins | 4 |
| Junction-to-board thermal resistance | RθJB |  | 22.2 |  | °C/W | DCU (VSSOP) 8 pins | 4 |
| Junction-to-top characterization parameter | ψJT |  | 1.6 |  | °C/W | DCU (VSSOP) 8 pins | 4 |
| Junction-to-board characterization parameter | ψJB |  | 22.8 |  | °C/W | DCU (VSSOP) 8 pins | 4 |

## CAD (KiCad official)

- Symbol: `OPA2171MDCUTEP`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
- 3D model files: `opa2171mdcutep-etched.step` / `opa2171mdcutep-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2171mdcutep.step` / `opa2171mdcutep.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/opa2171-ep) (27 pp, sha256 `22b6ecce6f2cddd7`, retrieved 2026-10-11, 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/opa2171mdcutep-datasheet.pdf)