component
NCV2903DR2G
Public Made by Adomby adom
onsemi Comparators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownNCV2903DR2G
onsemi · Comparators · SOIC-8
NCV2903DR2G from onsemi, in a SOIC-8. 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 | OUTA | output | Open-collector output of comparator A. Requires an external pull-up resistor to a positive supply (typ. 1 kΩ-100 kΩ). Sinks up to 16 mA when active. |
| 2 | OUTB | output | Open-collector output of comparator B. Requires an external pull-up resistor to a positive supply. Sinks up to 16 mA when active. |
| 3 | VCC | power_in | Positive supply voltage. Single-supply operation from +2.0 V to +36 V, or split-supply ±1.0 V to ±18 V. Typical supply current 0.8 mA for both comparators. |
| 4 | IN-B | input | Inverting input of comparator B. Common-mode input voltage range includes ground (V_CC − 1.5 V max). Input bias current typ. 25 nA. |
| 5 | IN+B | input | Non-inverting input of comparator B. Common-mode input voltage range includes ground. Input offset voltage typ. 2 mV. |
| 6 | IN-A | input | Inverting input of comparator A. Common-mode input voltage range includes ground (V_CC − 1.5 V max). Input bias current typ. 25 nA. |
| 7 | IN+A | input | Non-inverting input of comparator A. Common-mode input voltage range includes ground. Input offset voltage typ. 2 mV. |
| 8 | GND | power_in | Ground / negative supply reference. Tie to 0 V for single-supply operation, or to V_EE for split-supply operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
NCV2903DR2G
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply Voltage | VCC | 36 | V | Printed as +36 or ±18 V | 3 | ||
| Input Differential Voltage | VIDR | 36 | V | 3 | |||
| Input Common Mode Voltage Range | VICR | -0.3 | 36 | V | 3 | ||
| Output Voltage | VO | 36 | V | 3 | |||
| Output Sink Current | ISink | 20 | mA | Continuous (Note 1) | 3 | ||
| Power Dissipation | PD | 570 | mW | TA = 25°C | 3 | ||
| Power Dissipation derating | 1/RJA | 5.7 | mW/°C | Derate above 25°C | 3 | ||
| Operating Ambient Temperature Range (NCV2903) | TA | -40 | 125 | °C | LM2903V, NCV2903 (Note 2); NCV2903 is qualified for automotive use | 3 | |
| Maximum Operating Junction Temperature (NCV2903) | TJ(max) | 150 | °C | LM293, NCV2903 | 3 | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 3 | ||
| ESD Protection, Human Body Model (NCV2903) | HBM | 2000 | V | Human Body Model; NCV2903 (Note 2) | 3 | ||
| ESD Protection, Machine Model (NCV2903) | MM | 200 | V | Machine Model; NCV2903 (Note 2) | 3 | ||
| Wide Single-Supply Range | VCC | 2 | 36 | V | Single supply, stated in Features (split supply ±1.0 V to ±18 V) | 1 | |
| Input Offset Voltage | VIO | -7 | 2 | 7 | mV | TA = 25°C | 4 |
| Input Offset Voltage | VIO | -15 | 9 | 15 | mV | Tlow ≤ TA ≤ Thigh | 4 |
| Input Offset Current | IIO | -50 | 5 | 50 | nA | TA = 25°C | 4 |
| Input Offset Current | IIO | -200 | 50 | 200 | nA | Tlow ≤ TA ≤ Thigh | 4 |
| Input Bias Current | IIB | 20 | 250 | nA | TA = 25°C | 4 | |
| Input Bias Current | IIB | 20 | 500 | nA | Tlow ≤ TA ≤ Thigh | 4 | |
| Input Common Mode Voltage Range | VICR | 0 | V | TA = 25°C; upper limit printed as VCC − 1.5 (not numeric) | 4 | ||
| Voltage Gain | AVOL | 25 | 200 | V/mV | RL ≥ 15 k, VCC = 15 Vdc, TA = 25°C | 4 | |
| Large Signal Response Time | 300 | ns | Vin = TTL Logic Swing, Vref = 1.4 Vdc | 4 | |||
| Output Sink Current | ISink | 6 | 16 | mA | Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc, TA = 25°C | 4 | |
| Output Saturation Voltage | VOL | 400 | mV | Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C | 4 | ||
| Output Saturation Voltage | VOL | 200 | 700 | mV | Tlow ≤ TA ≤ Thigh | 4 | |
| Output Leakage Current | IOL | 1000 | nA | Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc, Tlow ≤ TA ≤ Thigh | 4 | ||
| Supply Current | ICC | 0.4 | 1 | mA | RL = ∞, both comparators, TA = 25°C | 4 | |
| Supply Current | ICC | 2.5 | mA | RL = ∞, both comparators, VCC = 30 V | 4 |
CAD (KiCad official)
- Symbol:
NCV2903DR2G - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ncv2903dr2g-etched.step/ncv2903dr2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ncv2903dr2g.step/ncv2903dr2g.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ncv2903dr2g.step |
122 KB | You want the bare part, or you mark your own boards. |
ncv2903dr2g-etched.step |
2.5 MB | You want the part with NCV2903DR2G already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 599 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (13 pp, sha256
b87721993d627de6, 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).