component
LTC1440IS8#TRPBF
Public Made by Adomby adom
Analog Devices Comparators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LTC1440IS8#TRPBF
Analog Devices · Comparators · SO-8
LTC1440IS8#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 | GND | power_in | Ground; connect to V- for single-supply operation. |
| 2 | V- | power_in | Negative supply; connect to ground for single-supply operation, and it must be more negative than GND. |
| 3 | IN+ | input | Noninverting comparator input with common-mode range from V- to V+ -1.3V and typical input current of 10pA at 25°C. |
| 4 | IN- | input | Inverting comparator input with common-mode range from V- to V+ -1.3V and typical input current of 10pA at 25°C. |
| 5 | HYST | input | Hysteresis input that should be connected to REF if not used, with input voltage range from VREF to VREF - 50mV. |
| 6 | REF | output | Reference output at 1.182V with respect to V-, able to source up to 200µA and sink 15µA at 25°C, and it drives a 0.01µF bypass capacitor without oscillation. |
| 7 | V+ | power_in | Positive supply, 2V to 11V. |
| 8 | OUT | output | Comparator CMOS output that swings from GND to V+ and can source up to 40mA and sink 5mA. |
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 |
|---|---|---|---|---|---|---|---|
| V+ Supply Voltage Range | V+ | 2 | 11 | V | Full operating temperature range | 3 | |
| Supply Current (LTC1440, HYST = REF) | ICC | 4.4 | µA | V+ = 5V; IN+ = IN- + 80mV; HYST = REF; -40°C ≤ TA ≤ 85°C | 3 | ||
| Supply Current (LTC1440, HYST = REF) | ICC | 4.3 | µA | V+ = 3V; IN+ = IN- + 80mV; HYST = REF; -40°C ≤ TA ≤ 85°C | 4 | ||
| Comparator Input Offset Voltage | VOS | -10 | 3 | 10 | mV | V+ = 5V; VCM = 2.5V; full operating temperature range | 3 |
| Comparator Input Offset Voltage | VOS | -10 | 3 | 10 | mV | V+ = 3V; VCM = 1.5V; full operating temperature range | 4 |
| Input Leakage Current (IN+, IN-) | IIN | -1 | 0.01 | 1 | nA | V+ = 5V; VIN+ = VIN- = 2.5V; full operating temperature range | 3 |
| Input Leakage Current (IN+, IN-) | IIN | -1 | 0.01 | 1 | nA | V+ = 3V; VIN+ = VIN- = 1.5V; full operating temperature range | 4 |
| Input Leakage Current (HYST) | IIN | -1 | 0.02 | 1 | nA | V+ = 5V; full operating temperature range | 3 |
| Input Leakage Current (HYST) | IIN | -1 | 0.02 | 1 | nA | V+ = 3V; full operating temperature range | 4 |
| Common Mode Rejection Ratio | CMRR | 0.1 | 1 | mV/V | V+ = 5V; V- to V+, 1.3V | 3 | |
| Common Mode Rejection Ratio | CMRR | 0.1 | 1 | mV/V | V+ = 3V; V- to V+, 1.3V | 4 | |
| Power Supply Rejection Ratio (LTC1440) | PSRR | 0.1 | 1 | mV/V | V+ = 5V; V+ = 2.5V to 11V | 3 | |
| Power Supply Rejection Ratio (LTC1440) | PSRR | 0.1 | 1 | mV/V | V+ = 3V; V+ = 2.5V to 11V | 4 | |
| Reference Voltage (LTC1440, -40°C to 85°C) | VREF | 1.164 | 1.2 | V | V+ = 5V; no load; -40°C ≤ TA ≤ 85°C | 3 | |
| Reference Voltage (LTC1440, -40°C to 85°C) | VREF | 1.164 | 1.2 | V | V+ = 3V; no load; -40°C ≤ TA ≤ 85°C | 4 | |
| Reference Source Current Change (LTC1440) | ∆VREF | 0.8 | 5 | mV | V+ = 5V; 0 ≤ ISOURCE ≤ 2mA; full operating temperature range | 3 | |
| Reference Source Current Change (LTC1440) | ∆VREF | 0.8 | 5.5 | mV | V+ = 3V; 0 ≤ ISOURCE ≤ 1mA; full operating temperature range | 4 | |
| Reference Sink Current Change (LTC1440) | 0.5 | 1.5 | mV | V+ = 5V; 0 ≤ ISINK ≤ 10µA | 3 | ||
| Reference Sink Current Change (LTC1440) | 0.5 | 1.5 | mV | V+ = 3V; 0 ≤ ISINK ≤ 10µA | 4 | ||
| Input Current (IN+, IN-, HYST) | 20 | mA | 2 | ||||
| Reference Output Current (REF) | 20 | mA | 2 | ||||
| Output Current (OUT) | 50 | mA | 2 | ||||
| Power Dissipation | 500 | mW | 2 | ||||
| Operating Temperature Range (LTC144XI) | TA | -40 | 85 | °C | Industrial grade (LTC144XI) | 2 | |
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Junction Temperature | 150 | °C | 2 | ||||
| Lead Temperature (Soldering) | 300 | °C | Soldering, 10 sec | 2 | |||
| Thermal Resistance Junction-to-Ambient (S8) | θJA | 175 | °C/W | S8 package (8-lead plastic SO); TJMAX = 150°C | 2 |
CAD (KiCad official)
- Symbol:
LTC1440IS8#TRPBF - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
ltc1440is8-trpbf-etched.step/ltc1440is8-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltc1440is8-trpbf.step/ltc1440is8-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (16 pp, sha256
ed5aea2a7c88ef25, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).