component
lm2901qdrq1
Public Unreviewedby Ray
Texas Instruments Comparators, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownLM2901QDRQ1
Texas Instruments · Comparators · SOIC-14
LM2901QDRQ1 from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OUT | output | Open-collector output of comparator 1. Requires an external pull-up resistor (typ. 5.1 kΩ) to VCC or a logic supply. Can be wire-AND'ed with other open-collector outputs. Max output current 20 mA (recommended ≤4 mA per comparator). |
| 2 | 2OUT | output | Open-collector output of comparator 2. Requires external pull-up to VCC or logic supply; can be wire-AND'ed with other open-collector outputs. Recommended output current ≤4 mA. |
| 3 | VCC | power_in | Positive supply pin. Operating range 2-30 V for LM2901-Q1 (2-32 V for V/AV variants). Typical supply current 0.8 mA for all four comparators combined; absolute maximum 36 V. |
| 4 | 2IN- | input | Inverting (negative) input of comparator 2. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. Differential input voltage rated to ±36 V. |
| 5 | 2IN+ | input | Non-inverting (positive) input of comparator 2. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. Differential input voltage rated to ±36 V. |
| 6 | 1IN- | input | Inverting (negative) input of comparator 1. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 7 | 1IN+ | input | Non-inverting (positive) input of comparator 1. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 8 | 3IN- | input | Inverting (negative) input of comparator 3. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 9 | 3IN+ | input | Non-inverting (positive) input of comparator 3. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 10 | 4IN- | input | Inverting (negative) input of comparator 4. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 11 | 4IN+ | input | Non-inverting (positive) input of comparator 4. Common-mode input range 0 V to VCC-1.5 V; input bias current typ. -25 nA. |
| 12 | GND | power_in | Device ground reference. All voltages (except differential) are referenced to this pin. |
| 13 | 4OUT | output | Open-collector output of comparator 4. Requires external pull-up to VCC or logic supply; can be wire-AND'ed with other open-collector outputs. |
| 14 | 3OUT | output | Open-collector output of comparator 3. Requires external pull-up to VCC or logic supply; can be wire-AND'ed with other open-collector outputs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |
Ordering variants
LM2901QDRQ1DLM2901QDRQ1LM2901QDRQ1DQ1LM2901QDRQ1PWLM2901QDRQ1PWR
CAD (KiCad official)
- Symbol:
LM2901QDRQ1 - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
cfcf493feccd95df, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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