# LT6600CS8-20#PBF

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

LT6600CS8-20#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 | IN- | input | Inverting filter input; signals are applied through external resistor RIN, with DC differential gain of 402Ω/RIN. |
| 2 | VOCM | input | High-impedance DC common mode reference for the 2nd filter stage that sets the output common mode voltage; tie to Pin 7 or drive from a reference, and bypass with 0.01µF unless connected to a ground plane. |
| 3 | V+ | power_in | Positive supply pin; bypass to Pin 6 with a 0.1µF ceramic capacitor placed as close as possible to the IC for single 3.3V or 5V supply. |
| 4 | OUT+ | output | Positive filter differential output; each output pin can drive a 100Ω and/or 50pF load. |
| 5 | OUT- | output | Negative filter differential output; each output pin can drive a 100Ω and/or 50pF load. |
| 6 | V- | power_in | Negative supply pin (grounded for single supply) fused to the lead frame for thermal conduction; bypass with 0.1µF to Pin 3 (or to ground in dual supply use). |
| 7 | VMID | passive | Internally biased at mid-supply (about 5.5kΩ impedance) and sets the output common mode of the 1st filter stage; bypass with 0.01µF to Pin 6, and it can be overridden by a low impedance source kept at least 1.5V from each supply. |
| 8 | IN+ | input | Non-inverting filter input; signals are applied through external resistor RIN, with DC differential gain of 402Ω/RIN. |

## 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 |
|---|---|---|---|---|---|---|---|
| Total Supply Voltage |  |  |  | 11 | V |  | 2 |
| Input Current |  | -10 |  | 10 | mA | Note 8 | 2 |
| Operating Temperature Range |  | -40 |  | 85 | °C | Note 6 | 2 |
| Specified Temperature Range |  | -40 |  | 85 | °C | Note 7 | 2 |
| Junction Temperature | TJMAX |  |  | 150 | °C |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 300 | °C | Soldering, 10 sec | 2 |
| Thermal Resistance Junction-to-Ambient | θJA |  | 100 |  | °C/W | S8 package | 2 |
| Filter Gain, VS = 3V, DC to 260kHz |  | -0.4 | 0.1 | 0.5 | dB | VIN = 2VP-P, fIN = DC to 260kHz, VS = 3V | 2 |
| Filter Gain, VS = 3V, 2MHz |  | -0.1 | 0 | 0.1 | dB | VIN = 2VP-P, fIN = 2MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 3V, 10MHz |  | -0.2 | 0.1 | 0.5 | dB | VIN = 2VP-P, fIN = 10MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 3V, 16MHz |  | -0.1 | 0.5 | 1.9 | dB | VIN = 2VP-P, fIN = 16MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 3V, 20MHz |  | -0.8 | 0 | 1 | dB | VIN = 2VP-P, fIN = 20MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 5V, DC to 260kHz |  | -0.5 | 0 | 0.5 | dB | VIN = 2VP-P, fIN = DC to 260kHz, VS = 5V | 2 |
| Filter Gain, VS = 5V, 2MHz |  | -0.1 | 0 | 0.1 | dB | VIN = 2VP-P, fIN = 2MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 5V, 10MHz |  | -0.2 | 0.1 | 0.4 | dB | VIN = 2VP-P, fIN = 10MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 5V, 16MHz |  | -0.3 | 0.4 | 1.6 | dB | VIN = 2VP-P, fIN = 16MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = 5V, 20MHz |  | -1.3 | -0.4 | 0.6 | dB | VIN = 2VP-P, fIN = 20MHz (relative to 260kHz) | 2 |
| Filter Gain, VS = ±5V, DC to 260kHz |  | -0.6 | -0.1 | 0.4 | dB | VIN = 2VP-P, fIN = DC to 260kHz, VS = ±5V | 2 |
| Differential Output Swing, VS = 5V |  | 3.8 |  |  | VP-P DIFF | Measured between pins 4 and 5, VS = 5V | 3 |
| Differential Output Swing, VS = 3V |  | 3.75 |  |  | VP-P DIFF | Measured between pins 4 and 5, VS = 3V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=3V |  |  | 5 | 25 | mV | RIN = 402Ω, VS = 3V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=5V |  |  | 10 | 30 | mV | RIN = 402Ω, VS = 5V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=±5V |  |  | 10 | 35 | mV | RIN = 402Ω, VS = ±5V | 3 |
| Input Referred Differential Offset, RIN=100Ω, VS=3V |  |  | 5 | 15 | mV | RIN = 100Ω, VS = 3V | 3 |
| Input Referred Differential Offset, RIN=100Ω, VS=5V |  |  | 5 | 17 | mV | RIN = 100Ω, VS = 5V | 3 |
| Input Referred Differential Offset, RIN=100Ω, VS=±5V |  |  | 5 | 20 | mV | RIN = 100Ω, VS = ±5V | 3 |
| Input Bias Current |  | -95 | -50 |  | μA | Average of Pin 1 and Pin 8 | 3 |
| VMID Input Resistance |  | 4.35 | 5.7 | 7.65 | kΩ |  | 3 |
| Voltage at VMID (Pin 7), VS = 5V |  | 2.46 | 2.51 | 2.55 | V | VS = 5 | 3 |
| Filter Gain Temperature Coefficient |  |  | 780 |  | ppm/C | fIN = 250kHz, VIN = 2VP-P (Note 2) | 3 |
| Noise |  |  | 118 |  | μVRMS | Noise BW = 10kHz to 20MHz | 3 |
| Differential Offset Drift |  |  | 10 |  | μV/°C |  | 3 |
| Common Mode Rejection Ratio | CMRR |  | 66 |  | dB |  | 3 |

## CAD (KiCad official)

- Symbol: `LT6600CS8-20#PBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `lt6600cs8-20-pbf-etched.step` / `lt6600cs8-20-pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt6600cs8-20-pbf.step` / `lt6600cs8-20-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/66002fb.pdf) (12 pp, sha256 `fb23f334fc7be084`, 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/lt6600cs8-20-pbf-datasheet.pdf)