# LT6600IS8-2.5#PBF

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

LT6600IS8-2.5#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 differential input, fed through an external resistor RIN so the DC differential gain is 1580Ω/RIN. |
| 2 | VOCM | input | High impedance common mode reference for the second filter stage that sets the output common mode voltage, bypassed with 0.01μF unless on a ground plane. |
| 3 | V+ | power_in | Positive supply pin, bypassed with a quality 0.1μF ceramic capacitor to V- as close to the IC as possible. |
| 4 | OUT+ | output | Positive filter differential output, able to drive a 100Ω and/or 50pF load to AC ground. |
| 5 | OUT- | output | Negative filter differential output, able to drive a 100Ω and/or 50pF load to AC ground. |
| 6 | V- | power_in | Negative supply pin (ground for single supply); this pin is fused to the lead frame to enhance thermal conduction to a ground plane. |
| 7 | VMID | passive | Internally biased at mid-supply through a 5.5kΩ impedance and may be overridden by a low impedance source, bypassed with 0.01μF to V- for single supply. |
| 8 | IN+ | input | Non-inverting differential input, fed through an external resistor RIN so the DC differential gain is 1580Ω/RIN. |

## 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 |
|---|---|---|---|---|---|---|---|
| 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 (I grade) |  | -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 |
| Filter Gain, VS=3V |  | -0.5 | 0.1 | 0.4 | dB | VS = 3V; VIN = 2VP-P, fIN = DC to 260kHz; RIN = 1580Ω | 2 |
| Filter Gain relative to 260kHz, VS=3V |  | -0.15 | 0 | 0.1 | dB | VS = 3V; VIN = 2VP-P, fIN = 700kHz | 2 |
| Filter Gain relative to 260kHz, VS=3V |  | -0.2 | 0.2 | 0.6 | dB | VS = 3V; VIN = 2VP-P, fIN = 1.9MHz | 2 |
| Filter Gain relative to 260kHz, VS=3V |  | -0.6 | 0.1 | 0.5 | dB | VS = 3V; VIN = 2VP-P, fIN = 2.2MHz | 2 |
| Filter Gain relative to 260kHz, VS=3V |  | -2.1 | -0.9 | 0 | dB | VS = 3V; VIN = 2VP-P, fIN = 2.5MHz | 3 |
| Filter Gain, VS=5V |  | -0.5 | -0.1 | 0.4 | dB | VS = 5V; VIN = 2VP-P, fIN = DC to 260kHz; RIN = 1580Ω | 3 |
| Filter Gain relative to 260kHz, VS=5V |  | -0.15 | 0 | 0.1 | dB | VS = 5V; VIN = 2VP-P, fIN = 700kHz | 3 |
| Filter Gain relative to 260kHz, VS=5V |  | -2.1 | -0.9 | 0 | dB | VS = 5V; VIN = 2VP-P, fIN = 2.5MHz | 3 |
| Filter Gain, VS=±5V |  | -0.6 | -0.1 | 0.4 | dB | VS = ±5V; VIN = 2VP-P, fIN = DC to 260kHz | 3 |
| Filter Gain, RIN=402Ω, VS=3V |  | 11.3 | 11.8 | 12.3 | dB | VIN = 0.5VP-P, fIN = DC to 260kHz, VS = 3V | 3 |
| Filter Gain, RIN=402Ω, VS=5V |  | 11.3 | 11.8 | 12.3 | dB | VIN = 0.5VP-P, fIN = DC to 260kHz, VS = 5V | 3 |
| Filter Gain, RIN=402Ω, VS=±5V |  | 11.2 | 11.7 | 12.2 | dB | VIN = 0.5VP-P, fIN = DC to 260kHz, VS = ±5V | 3 |
| Differential Output Swing, VS=5V |  | 8.8 |  | 9.3 | VP-P DIFF | Measured between Pins 4 and 5; VS = 5V | 3 |
| Differential Output Swing, VS=3V |  | 5.1 |  | 5.5 | VP-P DIFF | Measured between Pins 4 and 5; VS = 3V | 3 |
| Input Bias Current |  | -35 |  | -15 | μA | Average of Pin 1 and Pin 8 | 3 |
| Input Referred Differential Offset, RIN=1580Ω, VS=3V |  | 5 |  | 25 | mV | RIN = 1580Ω, Differential Gain = 1V/V; VS = 3V | 3 |
| Input Referred Differential Offset, RIN=1580Ω, VS=5V |  | 5 |  | 30 | mV | RIN = 1580Ω, Differential Gain = 1V/V; VS = 5V | 3 |
| Input Referred Differential Offset, RIN=1580Ω, VS=±5V |  | 5 |  | 35 | mV | RIN = 1580Ω, Differential Gain = 1V/V; VS = ±5V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=3V |  | 3 |  | 13 | mV | RIN = 402Ω, Differential Gain = 4V/V; VS = 3V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=5V |  | 3 |  | 16 | mV | RIN = 402Ω, Differential Gain = 4V/V; VS = 5V | 3 |
| Input Referred Differential Offset, RIN=402Ω, VS=±5V |  | 3 |  | 20 | mV | RIN = 402Ω, Differential Gain = 4V/V; VS = ±5V | 3 |
| Input Common Mode Voltage, VS=3V |  | 0 |  | 1.5 | V | Differential Input = 500mVP-P, VS = 3V; RIN ≥ 402Ω | 3 |
| Input Common Mode Voltage, VS=5V |  | 0 |  | 3 | V | Differential Input = 500mVP-P, VS = 5V; RIN ≥ 402Ω | 3 |
| Input Common Mode Voltage, VS=±5V |  | -2.5 |  | 1 | V | Differential Input = 500mVP-P, VS = ±5V; RIN ≥ 402Ω | 3 |
| Output Common Mode Voltage, VS=3V |  | 1 |  | 1.5 | V | Differential Input = 2VP-P, VS = 3V; Pin 7 = Open | 3 |
| Output Common Mode Voltage, VS=5V |  | 1.5 |  | 3 | V | Differential Input = 2VP-P, VS = 5V; Pin 7 = Open | 3 |
| Output Common Mode Voltage, VS=±5V |  | -1 |  | 2 | V | Differential Input = 2VP-P, VS = ±5V; Pin 7 = Open | 3 |
| Output Common Mode Offset, VS=3V |  | -25 | 10 | 45 | mV | with respect to Pin 2; VS = 3V | 3 |
| Output Common Mode Offset, VS=5V |  | -30 | 5 | 45 | mV | with respect to Pin 2; VS = 5V | 3 |
| Output Common Mode Offset, VS=±5V |  | -55 | -10 | 35 | mV | with respect to Pin 2; VS = ±5V | 3 |
| Voltage at VMID (S8), VS=5V |  | 2.46 |  | 2.51 | V | VS = 5V (S8) | 3 |
| VMID Input Resistance |  | 4.3 | 5.7 | 7.7 | kΩ |  | 3 |
| VOCM Bias Current, VS=5V |  | -15 |  | -3 | μA | VOCM = VMID = VS/2; VS = 5V | 3 |
| VOCM Bias Current, VS=3V |  | -10 |  | -3 | μA | VOCM = VMID = VS/2; VS = 3V | 3 |
| Filter Gain Temperature Coefficient |  |  | 780 |  | ppm/°C | fIN = 260kHz, VIN = 2VP-P | 3 |
| Noise |  |  | 51 |  | μVRMS | Noise BW = 10kHz to 2.5MHz | 3 |
| Distortion, 2nd Harmonic |  |  | 95 |  | dBc | 1MHz, 1VRMS, RL = 800Ω | 3 |
| Distortion, 3rd Harmonic |  |  | 88 |  | dBc | 1MHz, 1VRMS, RL = 800Ω | 3 |
| Differential Offset Drift |  |  | 10 |  | μV/°C |  | 3 |
| Common Mode Rejection Ratio | CMRR |  | 63 |  | dB |  | 3 |
| Thermal Resistance, Junction-to-Ambient, S8 package | θJA |  | 100 |  | °C/W | S8 package, TJMAX = 150°C | 2 |
| Thermal Resistance, 1100mm2 topside and 1100mm2 backside copper, 2500mm2 board | θJA |  | 65 |  | °C/W | S8 package; copper area topside 1100 mm2, backside 1100 mm2, board area 2500 mm2 | 12 |
| Thermal Resistance, 330mm2 topside and 330mm2 backside copper, 2500mm2 board | θJA |  | 85 |  | °C/W | S8 package; copper area topside 330 mm2, backside 330 mm2, board area 2500 mm2 | 12 |
| Thermal Resistance, no copper, 2500mm2 board | θJA |  | 105 |  | °C/W | S8 package; copper area topside 0 mm2, backside 0 mm2, board area 2500 mm2 | 12 |

## CAD (KiCad official)

- Symbol: `LT6600IS8-2.5#PBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `lt6600is8-2-5-pbf-etched.step` / `lt6600is8-2-5-pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt6600is8-2-5-pbf.step` / `lt6600is8-2-5-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/660025fe.pdf) (16 pp, sha256 `efb4837130193b8b`, retrieved 2026-11-02, 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/lt6600is8-2-5-pbf-datasheet.pdf)