Specifications
| Type | Description |
|---|---|
| Part Number | LM2903 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Number of Comparators | 2; device consists of two independent voltage comparators |
| Supply Voltage Range | 2 to 30 V; LM2903 family comparison table |
| Recommended Supply Voltage | 2 to 30 V; LM2903 non-V, non-B devices; VS = V+ - V- |
| Maximum Supply Voltage | -0.3 to 36 V; absolute maximum rating, non-B versions |
| Total Supply Current | 1 to 2.5 mA; LM2903, 5V to 36V max |
| Operating Temperature Range | -40 to 125 °C; LM2903 recommended ambient temperature, TA |
| ESD Rating HBM | 2000 V; LM2903 family comparison table |
| ESD Rating HBM | ±2000 V; per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±1000 V; per JEDEC specification JESD22-C101 |
| Input Offset Voltage | ±15 mV max over temperature; LM2903 family comparison table |
| Input Bias Current | 25 nA typ, 250 nA max; LM2903 family comparison table |
| Response Time | 1.3 µs typ; LM2903 family comparison table |
| Differential Input Voltage | -36 to 36 V; absolute maximum rating, non-B versions; IN+ with respect to IN- |
| Input Voltage | -0.3 to 36 V; absolute maximum rating, either input, non-B versions |
| Recommended Input Voltage Range | 0 to V+ - 2.0 V; recommended operating condition, non-B devices |
| Output Voltage | -0.3 to 36 V; absolute maximum rating, non-B versions |
| Output Current | 20 mA max; absolute maximum rating, non-B versions |
| Input Current | -50 mA; absolute maximum rating, IIK |
| Output Short Circuit Duration to Ground | Unlimited; absolute maximum rating, ISC |
| Operating Virtual-Junction Temperature | 150 °C max; absolute maximum rating, TJ |
| Storage Temperature | -65 to 150 °C; absolute maximum rating, Tstg |
| Output Compatibility | TTL, MOS, and CMOS compatible; feature description |
| Common-Mode Input Range | Includes ground; feature list |
| Pin 1 Function | 1OUT, comparator 1 output; SOIC, VSSOP, PDIP, SO, TSSOP, DDF, and DSG packages |
| Pin 8 Function | VCC, positive supply; SOIC, VSSOP, PDIP, SO, TSSOP, DDF, and DSG packages |
| Package Case | SOIC-8 4.90mm x 3.91mm; VSSOP-8 3.00mm x 3.00mm; PDIP-8 9.81mm x 6.35mm; SO-8 6.20mm x 5.30mm; TSSOP-8 3.00mm x 4.40mm |
| Datasheet Status | request_only |
Product Overview
The LM2903 is a Texas Instruments dual voltage comparator in the Signal_Chain category. The device consists of two independent voltage comparators and is specified for a 2 to 30 V recommended supply range on non-V, non-B devices, with the supply defined as VS = V+ - V-. The family comparison data also lists a 2 to 30 V supply voltage range.
Electrical limits include a non-B absolute maximum supply voltage of -0.3 to 36 V, input voltage of -0.3 to 36 V, output voltage of -0.3 to 36 V, and differential input voltage from -36 to 36 V. Recommended input voltage range is 0 to V+ - 2.0 V. Total supply current is listed as 1 to 2.5 mA for LM2903 over 5 V to 36 V maximum conditions.
The comparator is offered in SOIC-8, VSSOP-8, PDIP-8, SO-8, and TSSOP-8 package cases. Pin 1 is 1OUT, comparator 1 output, and pin 8 is VCC, the positive supply. The common-mode input range includes ground, and the output is compatible with TTL, MOS, and CMOS logic interfaces.
Key Features
- Two independent voltage comparators in one LM2903 device
- 2 to 30 V recommended supply voltage range
- 1 to 2.5 mA total supply current range
- -40 to 125 °C recommended ambient operating range
- ±15 mV maximum input offset voltage over temperature
- 25 nA typical, 250 nA maximum input bias current
- 1.3 µs typical comparator response time
- Common-mode input range includes ground
- TTL, MOS, and CMOS compatible output interface
- Unlimited output short-circuit duration to ground
Typical Applications
- Dual voltage comparison circuits
- Ground-referenced signal threshold detection
- TTL logic interface comparison
- MOS logic interface comparison
- CMOS logic interface comparison
- Comparator channels in Signal_Chain designs
Procurement Notes
When requesting a quote for LM2903, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
How many comparators are inside the LM2903 device?
The LM2903 consists of two independent voltage comparators. This makes it a dual voltage comparator device in the Texas Instruments Signal_Chain category.
What supply voltage range is recommended for LM2903?
For LM2903 non-V, non-B devices, the recommended supply voltage is 2 to 30 V, with VS defined as V+ minus V-. The family comparison table also lists a 2 to 30 V supply voltage range.
What package cases are listed for the LM2903?
The listed package cases are SOIC-8 4.90mm x 3.91mm, VSSOP-8 3.00mm x 3.00mm, PDIP-8 9.81mm x 6.35mm, SO-8 6.20mm x 5.30mm, and TSSOP-8 3.00mm x 4.40mm.
Which logic outputs are compatible with the LM2903?
The LM2903 output is described as compatible with TTL, MOS, and CMOS logic. The extracted pin data identifies pin 1 as 1OUT, comparator 1 output, and pin 8 as VCC, the positive supply.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.