Specifications
| Type | Description |
|---|---|
| Part Number | LM339 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | SOIC-14 8.70mm x 3.90mm; PDIP-14 19.30mm x 6.40mm; TSSOP-14 5.00mm x 4.40mm; SOP-14 10.20mm x 5.30mm; SSOP-14 6.50mm x 5.30mm; SOT-23-14 4.20mm x 2.00mm; WQFN-16 3.00mm x 3.00mm |
| Number of Comparators | 4; independent voltage comparators per device |
| Recommended Supply Voltage | 2 to 36 V; LM339B and LM2901B, VS = (V+) - (V-) |
| Absolute Maximum Supply Voltage | -0.3 to 38 V; LM339B and LM2901B, VS = (V+) - (V-) |
| Absolute Maximum Differential Input Voltage | ±38 V; LM339B and LM2901B, VID at IN+ with respect to IN- |
| Absolute Maximum Input Pin Voltage | -0.3 to 38 V; LM339B and LM2901B, IN+ or IN- |
| Absolute Maximum Input Current | -50 mA; LM339B and LM2901B, current into input pins IN+ or IN- |
| Absolute Maximum Output Pin Voltage | -0.3 to 38 V; LM339B and LM2901B, OUT pin |
| Absolute Maximum Output Sink Current | 25 mA; LM339B and LM2901B |
| Output Short-Circuit Duration | Unlimited; short circuits from outputs to V+ can cause excessive heating and eventual destruction |
| Maximum Junction Temperature | 150 °C; LM339B and LM2901B absolute maximum rating |
| Storage Temperature | -65 to 150 °C; LM339B and LM2901B absolute maximum rating |
| HBM ESD Rating | ±2000 V; per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | ±1000 V; per ANSI/ESDA/JEDEC JS-002 |
| Ambient Temperature Range | -40 to 85 °C; LM339B recommended operating conditions |
| Input Voltage Range | (V-) - 0.1 to (V+) - 2.0 V; LM339B and LM2901B VIVR |
| Input Offset Voltage | typ ±0.37 mV, min -3.5 mV, max 3.5 mV; VS = 5 to 36 V, VCM = V-, TA = 25 °C |
| Input Offset Voltage Over Temperature | min -5.5 mV, max 5.5 mV; VS = 5 to 36 V, TA = -40 °C to 85 °C |
| Input Bias Current | typ -3.5 nA, max -25 nA; VCM = V-, TA = 25 °C |
| Input Bias Current Over Temperature | max -50 nA; TA = -40 °C to 85 °C |
| Input Offset Current | typ ±0.5 nA, min -25 nA, max 25 nA; TA = 25 °C |
| Input Offset Current Over Temperature | min -50 nA, max 50 nA; TA = -40 °C to 85 °C |
| Common Mode Range | (V-) to (V+) - 1.5 V; VS = 3 to 36 V, TA = 25 °C |
| Common Mode Range Over Temperature | (V-) to (V+) - 2.0 V; VS = 3 to 36 V, TA = -40 °C to 85 °C |
| Total Supply Current | 0.8 to 1 mA; LM339B family comparison, 5 V to 36 V max |
| Response Time | typ 1 µs; LM339B family comparison |
| Output Compatibility | TTL, MOS, and CMOS compatible |
| Datasheet Status | request_only |
Product Overview
The LM339 is a Texas Instruments quad differential comparator in the Signal_Chain category. It integrates four independent voltage comparators in one device and supports output interfaces compatible with TTL, MOS, and CMOS logic families. The LM339B recommended supply voltage range is 2 to 36 V, while the absolute maximum supply voltage rating is -0.3 to 38 V.
Input-related limits and operating characteristics include ±38 V absolute maximum differential input voltage, -0.3 to 38 V absolute maximum input pin voltage, and -50 mA absolute maximum current into the IN+ or IN- pins. Under LM339B conditions, input offset voltage is typically ±0.37 mV at 25 °C, with ±5.5 mV limits across -40 °C to 85 °C.
The device is offered in multiple assembly packages: SOIC-14, PDIP-14, TSSOP-14, SOP-14, SSOP-14, SOT-23-14, and WQFN-16. Operating support includes an LM339B ambient temperature range of -40 °C to 85 °C, typical 1 µs response time, and 0.8 to 1 mA total supply current.
Key Features
- Four independent voltage comparators per device
- Recommended 2 to 36 V supply operation
- Absolute maximum supply rating from -0.3 to 38 V
- Input voltage range extends below negative rail by 0.1 V
- Typical ±0.37 mV input offset at 25 °C
- Typical -3.5 nA input bias current
- Common-mode range reaches (V+) - 1.5 V at 25 °C
- Total supply current specified from 0.8 to 1 mA
- Typical 1 µs response time
- TTL, MOS, and CMOS compatible output interface
- HBM ESD rating is ±2000 V
- Package options include SOIC, PDIP, TSSOP, SOP, SSOP, SOT-23, WQFN
Typical Applications
- Voltage threshold detection
- Window comparator circuits
- Logic-level signal interfacing
- MOS and CMOS output interfacing
- Multi-channel signal comparison
- 36 V supply comparator designs
- Temperature-range comparator assemblies
Procurement Notes
When requesting a quote for LM339, 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 integrated in the LM339?
The LM339 is a quad differential comparator, so each device contains four independent voltage comparators. This is stated as the number of comparators per device in the extracted manufacturer datasheet facts.
What supply voltage range is recommended for LM339B operation?
For LM339B and LM2901B conditions, the recommended supply voltage is 2 to 36 V, where VS is defined as the voltage between V+ and V-.
Which package options are listed for the LM339?
The listed package options include SOIC-14, PDIP-14, TSSOP-14, SOP-14, SSOP-14, SOT-23-14, and WQFN-16, with package dimensions provided for each format.
What output interfaces are compatible with this comparator?
The LM339 device output interface is specified as compatible with TTL, MOS, and CMOS logic, supporting direct comparator-output use with those logic families.
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.