# OPA2810IDCNT

**Texas Instruments** · Pre-ordered Chips · SOT-23-8

OPA2810IDCNT from Texas Instruments, in a SOT-23-8. 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 | OUT1 | output | Output of amplifier 1. |
| 2 | IN1- | input | Inverting input of amplifier 1. |
| 3 | IN1+ | input | Non-inverting input of amplifier 1. |
| 4 | VS- | power_in | Negative power supply; the datasheet specifies a total supply of 4.75 V to 27 V and allows single-supply operation with VS- tied to ground. |
| 5 | IN2+ | input | Non-inverting input of amplifier 2. |
| 6 | IN2- | input | Inverting input of amplifier 2. |
| 7 | OUT2 | output | Output of amplifier 2. |
| 8 | VS+ | power_in | Positive power supply; the datasheet specifies a total supply of 4.75 V to 27 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-8 |
| Category | Interface ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Total supply voltage | VS | 4.75 |  | 27 | V |  | 4 |
| Ambient temperature | TA | -40 | 25 | 125 | °C |  | 4 |
| Supply voltage (bipolar supply) |  |  |  | 14 | V |  | 4 |
| Storage temperature | Tstg | -65 |  | 125 | °C |  | 4 |
| Junction temperature | TJ |  |  | 150 | °C |  | 4 |
| Quiescent current per channel over temperature | IQ | 3.2 |  | 3.8 | mA | ±5V, TA = -40°C 至 +125°C | 7 |
| Quiescent current per channel over temperature | IQ | 3.2 |  | 3.8 | mA | ±12V, TA = -40°C 至 +125°C | 10 |
| Quiescent current per channel over temperature | IQ | 3.2 |  | 3.8 | mA | 5V, TA = -40°C 至 +125°C | 13 |
| Input offset voltage | VOS |  | 0.1 | 0.5 | mV | ±5V, TA = 25°C，VCM = 中间电源，适用于 OPA810/2810 | 5 |
| Input offset voltage | VOS |  | 0.1 | 0.5 | mV | ±12V, TA = 25°C，VCM = 中间电源，适用于 OPA810/2810 | 9 |
| Input offset voltage | VOS |  | 0.1 | 0.5 | mV | 5V, TA = 25°C，VCM = 中间电源，适用于 OPA810/2810 | 12 |
| Input offset voltage drift |  |  | 2 | 15 | µV/°C | 适用于 OPA810/2810 (±5V) | 5 |
| Input offset voltage drift |  |  | 2 | 15 | µV/°C | 适用于 OPA810/2810 (±12V) | 9 |
| Input offset voltage drift |  |  | 2 | 15 | µV/°C | 适用于 OPA810/2810 (5V) | 12 |
| Input bias current | IB |  | 2 | 20 | pA | ±5V, TA = 25°C | 5 |
| Input bias current | IB |  | 2 | 20 | pA | ±12V, TA = 25°C | 9 |
| Input bias current | IB |  | 2 | 20 | pA | 5V, TA = 25°C | 12 |
| Common-mode rejection ratio | CMRR | 90 | 100 |  | dBc | f = 直流，TA = 25°C，VCM = -3V 至 1V | 5 |
| Common-mode rejection ratio | CMRR | 90 | 100 |  | dBc | f = 直流，TA = 25°C，VCM = ±5V | 9 |
| Common-mode rejection ratio | CMRR | 90 | 100 |  | dBc | f = 直流，TA = 25°C，VCM = 0.5V 至 1.5V | 12 |
| Open-loop voltage gain | AOL | 100 | 110 |  | dB | ±5V, f = 直流，VO = ±2.5V | 5 |
| Open-loop voltage gain | AOL | 100 | 110 |  | dB | ±12V, f = 直流，VO = ±8V | 9 |
| Open-loop voltage gain | AOL | 100 | 110 |  | dB | 5V, f = 直流，VO = 1V 至 3V | 12 |
| Power supply rejection ratio | PSRR | 85 | 100 |  | dB | ±5V, VS = ±2V，VCM = -1V | 7 |
| Power supply rejection ratio | PSRR | 85 | 100 |  | dB | ±12V, VS = ±2V | 10 |
| Power supply rejection ratio | PSRR | 85 | 100 |  | dB | 5V, VS = ±0.5V，VCM = 1V | 13 |
| Linear output drive current | IO_max | 40 | 50 |  | mA | ±5V, VCM = 中间电源，将电流拉至 VOS = 20mV（待定） | 7 |
| Linear output drive current | IO_max | 40 | 50 |  | mA | ±12V, VCM = 中间电源，将电流拉至 VOS = 20mV（待定） | 10 |
| Linear output drive current | IO_max | 40 | 50 |  | mA | 5V, VCM = 1V，将电流拉至 VOS = 20mV（待定） | 13 |
| Output short-circuit current | ISC | 80 | 100 |  | mA | ±5V | 7 |
| Output short-circuit current | ISC | 80 | 100 |  | mA | ±12V | 10 |
| Output short-circuit current | ISC | 80 | 100 |  | mA | 5V | 13 |
| Operating voltage | VS | 4.75 |  | 27 | V | ±5V, TA = 25°C | 7 |
| Input offset voltage matching |  |  | 0.2 | 1 | mV | ±5V, TA = 25°C | 7 |
| Input offset voltage matching |  |  | 0.5 | 1.5 | mV | ±12V, TA = 25°C | 10 |
| Input offset voltage matching |  |  | 0.5 | 1.5 | mV | 5V, TA = 25°C | 13 |
| Quiescent current per channel | IQ |  | 3.5 |  | mA | ±5V, TA = 25°C | 7 |
| Quiescent current per channel | IQ |  | 3.5 |  | mA | ±12V, TA = 25°C | 10 |
| Quiescent current per channel | IQ |  | 3.5 |  | mA | 5V, TA = 25°C | 13 |
| Junction-to-ambient thermal resistance (DCN) | RθJA |  | 123.3 |  | °C/W | DCN (SOT-23) 8-pin | 4 |

## CAD (KiCad official)

- Symbol: `OPA2810IDCNT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-8`
- 3D model: SOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `opa2810idcnt-etched.step` / `opa2810idcnt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2810idcnt.step` / `opa2810idcnt.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/lit/ds/symlink/opa2810idcnt.pdf) (35 pp, sha256 `e55796bd18253eac`, retrieved 2026-11-02, tier: manufacturer)
- **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/opa2810idcnt-datasheet.pdf)