# LTC1050CS8#PBF

**Analog Devices** · Precision OpAmps · SO-8

LTC1050CS8#PBF 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 | NC | unconnected | Not connected internally. |
| 2 | -IN | input | Inverting input of the zero-drift op amp. |
| 3 | +IN | input | Non-inverting input; common mode range includes ground (V- to 2.7V CMRR test range at VS = ±5V). |
| 4 | V- | power_in | Negative supply (total supply V+ to V- limited to 18V absolute maximum; ground in single-supply use). |
| 5 | EXT CLOCK INPUT | bidirectional | Optional external clock input (internal oscillator output through 2k, 4x the sampling frequency of about 2.5kHz); leave floating when unused and avoid capacitive loading. |
| 6 | OUT | output | Amplifier output, swings to ground, with indefinite short-circuit duration. |
| 7 | V+ | power_in | Positive supply (single-supply operation 4.75V to 16V total). |
| 8 | NC | unconnected | Not connected internally. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SO-8 |
| Category | Operational Amplifier/Comparator |
| 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 | -5 | 0.5 | 5 | µV | VS=±5V, TA=25°C (Note 3) | 3 |
| Average Input Offset Drift |  | -0.05 | 0.01 | 0.05 | µV/°C | Over full operating temperature range (Note 3) | 3 |
| Input Offset Current | IOS | -125 | 20 | 125 | pA | TA=25°C (Note 5) | 3 |
| Input Offset Current over temperature | IOS | -200 |  | 200 | pA | Over full operating temperature range (Note 5) | 3 |
| Input Bias Current | IB | -75 | 10 | 75 | pA | TA=25°C (Note 5) | 3 |
| Input Bias Current over temperature | IB | -150 |  | 150 | pA | Over full operating temperature range (Note 5) | 3 |
| Common Mode Rejection Ratio | CMRR | 114 | 130 |  | dB | VCM = V- to 2.7V | 3 |
| Common Mode Rejection Ratio over temperature | CMRR | 110 |  |  | dB | VCM = V- to 2.7V, LTC1050M/C, over full operating temperature range | 3 |
| Power Supply Rejection Ratio | PSRR | 120 | 140 |  | dB | VS=±2.375V to ±8V, LTC1050M/C, over full operating temperature range | 3 |
| Large-Signal Voltage Gain | AVOL | 120 | 160 |  | dB | RL=10k, VOUT=±4V, over full operating temperature range | 3 |
| Maximum Output Voltage Swing | VOUT | 4.7 | 4.85 |  | V | RL=10k, over full operating temperature range, printed ± | 3 |
| Maximum Output Voltage Swing | VOUT |  | 4.95 |  | V | RL=100k, printed ± | 3 |
| Supply Current | IS |  | 1 | 1.5 | mA | No Load | 3 |
| Supply Current over temperature | IS |  |  | 2.3 | mA | No Load, over full operating temperature range | 3 |
| Long Term Offset Voltage Drift |  |  | 50 |  | nV/√Mo |  | 3 |
| Input Noise Voltage 0.1Hz to 10Hz |  |  | 1.6 |  | µVP-P | RS=100Ω, 0.1Hz to 10Hz (Note 6) | 3 |
| Input Noise Voltage DC to 1Hz |  |  | 0.6 |  | µVP-P | RS=100Ω, DC to 1Hz | 3 |
| Input Noise Current |  |  | 1.8 |  | fA/√Hz | f=10Hz (Note 4) | 3 |
| Slew Rate | SR |  | 4 |  | V/µs | RL=10k, CL=50pF | 3 |
| Gain Bandwidth Product | GBW |  | 2.5 |  | MHz |  | 3 |
| Internal Sampling Frequency | fS |  | 2.5 |  | kHz |  | 3 |
| Total Supply Voltage (V+ to V-) |  |  |  | 18 | V |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Lead Temperature (Soldering, 10 sec) |  |  |  | 300 | °C |  | 2 |
| Operating Temperature Range |  | -40 |  | 85 | °C | LTC1050C | 2 |
| Single Supply Operation |  | 4.75 |  | 16 | V |  | 1 |
| Maximum Junction Temperature | TJMAX |  |  | 150 | °C | S8 package | 2 |
| Thermal Resistance Junction to Ambient | θJA |  |  | 150 | °C/W | S8 package | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper |  | Connectors, switches, relay contacts, sockets, resistors, solder and even copper wire are all candidates for thermal | 6 |

## CAD (KiCad official)

- Symbol: `LTC1050CS8#PBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `ltc1050cs8-pbf-etched.step` / `ltc1050cs8-pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltc1050cs8-pbf.step` / `ltc1050cs8-pbf.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/1050fb.pdf) (16 pp, sha256 `0a504efb97b560e2`, retrieved 2026-10-31, 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/ltc1050cs8-pbf-datasheet.pdf)