# LT1018IS8#TRPBF

**Analog Devices** · Comparators · SO-8

LT1018IS8#TRPBF from Analog Devices, in a SO-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 | Comparator A output with class B pull-up current source, sinks about 70mA typical and can drive loads connected to a supply above V+. |
| 2 | -IN A | input | Comparator A inverting input; input voltage range is -0.3V to 40V with common mode range including ground. |
| 3 | +IN A | input | Comparator A non-inverting input; input voltage range is -0.3V to 40V with common mode range including ground. |
| 4 | V- | power_in | Negative supply (ground in single-supply use) for the dual comparator. |
| 5 | +IN B | input | Comparator B non-inverting input; input voltage range is -0.3V to 40V with common mode range including ground. |
| 6 | -IN B | input | Comparator B inverting input; input voltage range is -0.3V to 40V with common mode range including ground. |
| 7 | OUT B | output | Comparator B output with class B pull-up current source, sinks about 70mA typical and can drive loads connected to a supply above V+. |
| 8 | V+ | power_in | Positive supply, operates from 1.1V up to a 40V maximum total supply voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SO-8 |
| Category | Amplifiers |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage |  |  |  | 40 | V |  | 2 |
| Differential Input Voltage |  |  |  | 40 | V |  | 2 |
| Input Voltage |  | -0.3 |  | 40 | V |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Lead Temperature (Soldering, 10 sec) |  |  |  | 300 | °C |  | 2 |
| Operating Temperature Range (LT1018I) |  | -40 |  | 85 | °C | I grade | 2 |
| Maximum Junction Temperature | TJMAX |  |  | 150 | °C | S8 package | 2 |
| Thermal Resistance Junction-to-Ambient | θJA |  | 190 |  | °C/W | S8 package | 2 |
| Common Mode Rejection Ratio (25°C) | CMRR | 105 | 115 |  | dB | VS = ±20V, -20V ≤ VCM ≤ 19.1V, 25°C | 3 |
| Common Mode Rejection Ratio (full temp) | CMRR | 100 | 115 |  | dB | VS = ±20V, -20V ≤ VCM ≤ 19.1V, ● | 3 |
| Output Sink Current (25°C) |  | 35 | 70 |  | mA | V+ = 4.5V, V- = 0V, Overdrive > 30mV, 25°C | 3 |
| Output Sink Current (full temp) |  | 25 | 50 |  | mA | V+ = 4.5V, V- = 0V, Overdrive > 30mV, ● | 3 |
| Output Source Current (25°C) |  | 75 | 250 |  | μA | V+ = 40V, V- = 0V, VIN = 5mV, VOUT = 0.4V, 25°C | 3 |
| Output Source Current (full temp) |  | 50 | 220 |  | μA | V+ = 40V, V- = 0V, VIN = 5mV, VOUT = 0.4V, ● | 3 |
| Output Source Current (25°C) |  | 70 | 140 |  | μA | V+ = 1.2V, V- = 0V, VIN = 5mV, VOUT = 0.4V, 25°C | 3 |
| Output Source Current (full temp) |  | 45 | 120 |  | μA | V+ = 1.2V, V- = 0V, VIN = 5mV, VOUT = 0.4V, ● | 3 |
| Leakage Current (25°C) |  |  | 1 | 8 | μA | VS = 5V, VOUT = 40V, VIN ≥ 100mV, 25°C | 4 |
| Leakage Current (full temp) |  |  | 1.8 | 10 | μA | VS = 5V, VOUT = 40V, VIN ≥ 100mV, ● | 4 |
| Supply Current (25°C) |  |  | 110 | 250 | μA | VS = 5V, 25°C | 4 |
| Supply Current (full temp) |  |  |  | 250 | μA | VS = 5V, ● | 4 |
| Supply Current (25°C) |  |  | 140 | 250 | μA | VS = 40V, 25°C | 4 |
| Supply Current (full temp) |  |  |  | 270 | μA | VS = 40V, ● | 4 |
| Minimum Operating Voltage (25°C) |  |  |  | 1.2 | V | IOUT = 1mA, 25°C | 4 |
| Minimum Operating Voltage (full temp) |  |  |  | 1.2 | V | IOUT = 1mA, ● | 4 |

## CAD (KiCad official)

- Symbol: `LT1018IS8#TRPBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `lt1018is8-trpbf-etched.step` / `lt1018is8-trpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt1018is8-trpbf.step` / `lt1018is8-trpbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/10178ff.pdf) (16 pp, sha256 `0dbebd7ffd937c48`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/lt1018is8-trpbf-datasheet.pdf)