# LTC2051CS8#TRPBF

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

LTC2051CS8#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 | Amplifier A output with rail-to-rail swing, able to drive loads as low as 2kΩ to both supply rails. |
| 2 | -IN A | input | Amplifier A inverting input, with input voltage limited to between (V- - 0.3V) and (V+ + 0.3V). |
| 3 | +IN A | input | Amplifier A non-inverting input, with common mode range from the negative supply up to typically 1V from the positive supply. |
| 4 | V- | power_in | Negative supply (ground in single-supply use), with total supply voltage V+ to V- limited to 7V for the LTC2051. |
| 5 | +IN B | input | Amplifier B non-inverting input, with common mode range from the negative supply up to typically 1V from the positive supply. |
| 6 | -IN B | input | Amplifier B inverting input, with input voltage limited to between (V- - 0.3V) and (V+ + 0.3V). |
| 7 | OUT B | output | Amplifier B output with rail-to-rail swing, able to drive loads as low as 2kΩ to both supply rails. |
| 8 | V+ | power_in | Positive supply with operation from a single 2.7V supply and total supply voltage V+ to V- limited to 7V for the LTC2051. |

## 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 |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage |  | -3 | 0.5 | 3 | μV |  | 4 |
| Average Input Offset Drift |  | -0.03 | 0.01 | 0.03 | μV/°C | Over full operating temperature range (●), Note 2 | 4 |
| Input Bias Current | IB | -50 | 8 | 50 | pA | VS = 3V | 4 |
| Input Bias Current | IB | -3000 | 100 | 3000 | pA | VS = 3V, ● full operating temperature range | 4 |
| Input Bias Current | IB | -75 | 25 | 75 | pA | VS = 5V | 4 |
| Input Bias Current | IB | -3000 | 150 | 3000 | pA | VS = 5V, ● full operating temperature range | 4 |
| Input Offset Current | IOS | -100 | 100 | 100 | pA | VS = 3V | 4 |
| Input Offset Current | IOS | -700 | 150 | 700 | pA | VS = 3V, ● full operating temperature range | 4 |
| Input Offset Current | IOS | -150 | 150 | 150 | pA | VS = 5V | 4 |
| Input Offset Current | IOS | -700 | 200 | 700 | pA | VS = 5V, ● full operating temperature range | 4 |
| Common Mode Rejection Ratio | CMRR | 115 | 130 |  | dB | VCM = GND to V+, 1.3 | 4 |
| Common Mode Rejection Ratio | CMRR | 110 | 130 |  | dB | VS = 3V, ● full operating temperature range | 4 |
| Common Mode Rejection Ratio | CMRR | 120 | 130 |  | dB | VCM = GND to V+, 1.3 | 4 |
| Power Supply Rejection Ratio | PSRR | 120 | 130 |  | dB |  | 4 |
| Power Supply Rejection Ratio | PSRR | 115 | 130 |  | dB | ● full operating temperature range | 4 |
| Large-Signal Voltage Gain | AVOL | 120 | 140 |  | dB | RL = 10k, VS = 3V | 4 |
| Large-Signal Voltage Gain | AVOL | 115 | 140 |  | dB | RL = 10k, VS = 3V, ● full operating temperature range | 4 |
| Large-Signal Voltage Gain | AVOL | 125 | 140 |  | dB | RL = 10k, VS = 5V | 4 |
| Output Voltage Swing Low | VOL |  | 2 | 15 | mV | RL = 2k to GND, ● full operating temperature range | 4 |
| Supply Current (Per Amplifier) | IS |  | 0.75 | 1 | mA | No Load, VS = 3V, VSHDN = VIH, ● full operating temperature range | 4 |
| Supply Current (Per Amplifier) | IS |  | 0.85 | 1.2 | mA | No Load, VS = 5V, VSHDN = VIH, ● full operating temperature range | 4 |
| Supply Current, Shutdown | IS(SHDN) |  | 25 | 25 | μA | VSHDN = VIL, VS = 3V, ● full operating temperature range | 4 |
| Supply Current, Shutdown | IS(SHDN) |  | 4 | 10 | μA | VSHDN = VIL, VS = 5V, ● full operating temperature range | 4 |
| Shutdown Pin Input Current | ISHDN | -3 | -1 |  | μA | VSHDN = VIL, VS = 3V, ● full operating temperature range | 5 |
| Shutdown Pin Input Current | ISHDN | -5 | -2 |  | μA | VSHDN = VIL, VS = 5V, ● full operating temperature range | 5 |
| Total Supply Voltage (V+ to V-) |  |  |  | 7 | V | LTC2051/LTC2052 (non-HV) | 2 |
| Operating Temperature Range |  | -40 |  | 125 | °C |  | 2 |
| Specified Temperature Range, LTC2051C grade |  | 0 |  | 70 | °C | LTC2051C (Note 3) | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 300 | °C | Soldering, 10 sec | 2 |
| Maximum Junction Temperature | TJMAX |  |  | 125 | °C | S8 package | 2 |
| Thermal Resistance, Junction-to-Ambient | θJA |  | 250 |  | °C/W | S8 package | 2 |
| Slew Rate | SR |  | 2 |  | V/μs |  | 4 |
| Gain Bandwidth Product | GBW |  | 3 |  | MHz |  | 4 |
| Input Noise Voltage |  |  | 1.5 |  | μVP-P | RS = 100Ω, DC to 10Hz | 4 |
| Long-Term Offset Drift |  |  | 50 |  | nV/√mo |  | 4 |
| Internal Sampling Frequency |  |  | 7.5 |  | kHz |  | 5 |

## CAD (KiCad official)

- Symbol: `LTC2051CS8#TRPBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `ltc2051cs8-trpbf-etched.step` / `ltc2051cs8-trpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltc2051cs8-trpbf.step` / `ltc2051cs8-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/20512fd.pdf) (12 pp, sha256 `e58f985ab5e5d22b`, retrieved 2026-10-28, tier: manufacturer)
- **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/ltc2051cs8-trpbf-datasheet.pdf)