# OPA188AIDBVT

**Texas Instruments** · Precision Op Amps · SOT-23-5

OPA188AIDBVT from Texas Instruments, in a SOT-23-5. 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, which swings to within 15 mV of the supply rails with no load and to 250 mV from the rails with a 10 kΩ load, and may be shorted continuously to ground, V-, or V+. |
| 2 | V- | power_in | Negative (lowest) power supply; the input common-mode range includes V-, and signal inputs must stay between (V-) - 0.5 V and (V+) + 0.5 V. |
| 3 | +IN | input | Non-inverting input; the common-mode voltage range is V- to (V+) - 1.5 V, and input current must be limited to 10 mA or less if the signal can exceed a supply rail by 0.5 V. |
| 4 | -IN | input | Inverting input; the common-mode voltage range is V- to (V+) - 1.5 V, and input current must be limited to 10 mA or less if the signal can exceed a supply rail by 0.5 V. |
| 5 | V+ | power_in | Positive (highest) power supply; the device operates from 4 V to 36 V single-supply or ±2 V to ±18 V dual-supply, and supply voltages above 40 V can cause permanent damage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| 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 | -25 | 6 | 25 | μV | TA = 25°C, VS = ±4V to ±18V (8V to 36V) | 6 |
| Input offset voltage drift |  | -0.085 | 0.03 | 0.085 | μV/°C | TA = -40°C to +125°C | 6 |
| Power-supply rejection (offset vs. supply) | PSRR |  | 0.075 | 0.3 | μV/V | VS = 4V to 36V, TA = -40°C to +125°C | 6 |
| Input bias current | IB | -1400 | 160 | 1400 | pA | VCM = VS/2 | 6 |
| Input bias current | IB | -18 |  | 18 | nA | TA = -40°C to +125°C | 6 |
| Input offset current | IOS | -2800 | 320 | 2800 | pA | TA = 25°C, VS = ±4V to ±18V (8V to 36V) | 6 |
| Input offset current | IOS | -6 |  | 6 | nA | TA = -40°C to +125°C | 6 |
| Common-mode rejection ratio | CMRR | 120 | 134 |  | dB | (V–) < VCM < (V+) – 1.5V | 6 |
| Common-mode rejection ratio | CMRR | 130 | 146 |  | dB | (V–) + 0.5V < VCM < (V+) – 1.5V, VS = ±18V | 6 |
| Common-mode rejection ratio | CMRR | 120 | 126 |  | dB | (V–) + 0.5V < VCM < (V+) – 1.5V, VS = ±18V, TA = -40°C to +125°C | 6 |
| Open-loop voltage gain | AOL | 130 | 136 |  | dB | (V–) + 0.5V < VO < (V+) – 0.5V | 6 |
| Open-loop voltage gain | AOL | 120 | 126 |  | dB | (V–) + 0.5V < VO < (V+) – 0.5V, TA = -40°C to +125°C | 6 |
| Output voltage swing from supply rail |  |  | 6 | 15 | mV | No load | 6 |
| Output voltage swing from supply rail |  |  | 220 | 250 | mV | RL = 10kΩ | 6 |
| Output voltage swing from supply rail |  |  | 310 | 350 | mV | TA = -40°C to +125°C | 6 |
| Quiescent current per amplifier | IQ |  | 450 | 510 | μA | VS = ±4V to VS = ±18V | 6 |
| Quiescent current per amplifier | IQ |  |  | 600 | μA | IO = 0mA, TA = -40°C to +125°C | 6 |
| Input offset voltage | VOS | -25 | 6 | 25 | μV | TA = 25°C, VS = ±2V to <±4V (4V to <8V) | 7 |
| Input offset voltage drift |  | -0.085 | 0.03 | 0.085 | μV/°C | TA = -40°C to +125°C | 7 |
| Power-supply rejection (offset vs. supply) | PSRR |  | 0.075 | 0.3 | μV/V | VS = 4V to 36V, TA = -40°C to +125°C | 7 |
| Input bias current | IB | -1400 | 160 | 1400 | pA | TA = 25°C, VS = ±2V to <±4V (4V to <8V) | 7 |
| Input bias current | IB | -18 |  | 18 | nA | TA = -40°C to +125°C | 7 |
| Input offset current | IOS | -2800 | 320 | 2800 | pA | TA = 25°C, VS = ±2V to <±4V (4V to <8V) | 7 |
| Input offset current | IOS | -6 |  | 6 | nA | TA = -40°C to +125°C | 7 |
| Common-mode rejection ratio | CMRR | 106 | 114 |  | dB | (V–) < VCM < (V+) – 1.5V | 7 |
| Common-mode rejection ratio | CMRR | 114 | 120 |  | dB | (V–) + 0.5V < VCM < (V+) – 1.5V, VS = ±2V | 7 |
| Common-mode rejection ratio | CMRR | 110 | 120 |  | dB | (V–) + 0.5V < VCM < (V+) – 1.5V, VS = ±2V, TA = -40°C to +125°C | 7 |
| Open-loop voltage gain | AOL | 110 | 120 |  | dB | (V–) + 0.5V < VO < (V+) – 0.5V, RL = 5kΩ | 7 |
| Open-loop voltage gain | AOL | 120 | 130 |  | dB | (V–) + 0.5V < VO < (V+) – 0.5V | 7 |
| Output voltage swing from supply rail |  |  | 6 | 15 | mV | No load | 7 |
| Output voltage swing from supply rail |  |  | 220 | 250 | mV | RL = 10kΩ | 7 |
| Output voltage swing from supply rail |  |  | 310 | 350 | mV | TA = -40°C to +125°C | 7 |
| Quiescent current per amplifier | IQ |  | 425 | 485 | μA | VS = ±2V to VS = ±4V | 7 |
| Quiescent current per amplifier | IQ |  |  | 575 | μA | IO = 0mA, TA = -40°C to +125°C | 7 |
| Supply voltage, dual supply (±VS) | VS | 2 |  | 18 | V |  | 5 |
| Supply voltage, single supply | VS | 4 |  | 36 | V |  | 5 |
| Rated ambient temperature range | TA | -40 |  | 125 | °C |  | 5 |
| Supply voltage, dual supply | VS |  |  | 20 | V |  | 5 |
| Supply voltage, single supply | VS |  |  | 40 | V |  | 5 |
| Differential input voltage |  | -0.7 |  | 0.7 | V |  | 5 |
| Signal input current |  | -10 |  | 10 | mA |  | 5 |
| Operating temperature | TA | -55 |  | 150 | °C |  | 5 |
| Junction temperature | TJ |  |  | 150 | °C |  | 5 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 5 |
| Junction-to-ambient thermal resistance (DBV, SOT-23-5) | RθJA |  | 158.8 |  | °C/W |  | 5 |
| Junction-to-case (top) thermal resistance (DBV, SOT-23-5) | RθJC(top) |  | 60.7 |  | °C/W |  | 5 |
| Junction-to-board thermal resistance (DBV, SOT-23-5) | RθJB |  | 44.8 |  | °C/W |  | 5 |
| Junction-to-top characterization parameter (DBV, SOT-23-5) | ψJT |  | 1.6 |  | °C/W |  | 5 |
| Junction-to-board characterization parameter (DBV, SOT-23-5) | ψJB |  | 44.2 |  | °C/W |  | 5 |

## CAD (KiCad official)

- Symbol: `OPA188AIDBVT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `opa188aidbvt-etched.step` / `opa188aidbvt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa188aidbvt.step` / `opa188aidbvt.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/opa188) (43 pp, sha256 `9c44811ba2350a51`, 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/opa188aidbvt-datasheet.pdf)