Specifications
| Type | Description |
|---|---|
| Part Number | LM361 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | TO-100 (LME) 10-pin, 5.72 mm max height; SOIC (D/D0014A) 14-pin, 1.75 mm max height; PDIP (N) 14-pin |
| Comparator Output Type | Complementary TTL outputs |
| Maximum Propagation Delay | 20 ns max |
| Typical Delay Variation With Overdrive | 3 ns, from 5 mV to 500 mV overdrive |
| Positive Supply Voltage Absolute Maximum | +16 V |
| Negative Supply Voltage Absolute Maximum | -16 V |
| Gate Supply Voltage Absolute Maximum | +7 V, VCC |
| Output Voltage Absolute Maximum | +7 V |
| Differential Input Voltage Absolute Maximum | ±5 V |
| Input Common Mode Voltage Absolute Maximum | ±6 V |
| Power Dissipation Absolute Maximum | 600 mW |
| Storage Temperature Range | -65°C to +150°C |
| Operating Temperature Range | 0°C to +70°C |
| Lead Temperature | 260°C, soldering for 10 seconds |
| Device Lead Below V- Absolute Maximum | 0.3 V |
| Positive Supply Voltage Operating Range | 5 V min, 15 V max |
| Negative Supply Voltage Operating Range | -6 V min, -15 V max |
| Logic Supply Voltage Operating Range | 4.75 V min, 5 V typ, 5.25 V max |
| ESD Tolerance | 1600 V, human body model, 1.5 kΩ in series with 100 pF |
| PDIP Soldering Temperature | 260°C, 10 seconds |
| SOIC Vapor Phase Soldering Temperature | 215°C, 60 seconds |
| SOIC Infrared Soldering Temperature | 220°C, 15 seconds |
| Input Offset Voltage | 1 mV typ, 5 mV max; V+ = +10 V, VCC = +5 V, V- = -10 V, TA over operating range unless noted |
| Input Bias Current | 5 µA typ, 10 µA max; TA = 25°C |
| Input Bias Current | 30 µA max; V+ = +10 V, VCC = +5 V, V- = -10 V, TA over operating range unless noted |
| Input Offset Current | 2 µA typ; TA = 25°C |
| Input Offset Current | 5 µA max; V+ = +10 V, VCC = +5 V, V- = -10 V, TA over operating range unless noted |
| Voltage Gain | 3 V/mV typ; TA = 25°C |
| Input Resistance | 20 kΩ typ; TA = 25°C, f = 1 kHz |
| Logical 1 Output Voltage | 2.4 V min, 3.3 V typ; VCC = 4.75 V, ISOURCE = -0.5 mA |
| Logical 0 Output Voltage | 0.4 V max; VCC = 4.75 V, ISINK = 6.4 mA |
| Strobe Input 1 Current | 200 µA max; output enabled, VCC = 5.25 V, VSTROBE = 2.4 V |
| Strobe Input 0 Current | -1.6 mA max; output disabled, VCC = 5.25 V, VSTROBE = 0.4 V |
| Strobe Input 0 Voltage | 0.8 V max; VCC = 4.75 V |
| Strobe Input 1 Voltage | 2 V min; VCC = 4.75 V |
| Output Short Circuit Current | -18 mA typ, -55 mA max; VCC = 5.25 V, VOUT = 0 V |
| Positive Supply Current I+ | 5 mA max; V+ = 10 V, V- = -10 V, VCC = 5.25 V, 0°C ≤ TA ≤ 70°C |
| Negative Supply Current I- | 10 mA max; V+ = 10 V, V- = -10 V, VCC = 5.25 V, 0°C ≤ TA ≤ 70°C |
| Logic Supply Current ICC | 20 mA max; V+ = 10 V, V- = -10 V, VCC = 5.25 V, 0°C ≤ TA ≤ 70°C |
| Propagation Delay Time tpd(0) | 14 ns typ, 20 ns max; VIN = 50 mV overdrive, TA = 25°C, AC test circuit, fanout = 1 |
| Propagation Delay Time tpd(1) | 14 ns typ, 20 ns max; VIN = 50 mV overdrive, TA = 25°C, AC test circuit, fanout = 1 |
| Delay Between Output A and B | 2 ns typ, 5 ns max; TA = 25°C |
| Strobe Delay Time tpd(0) | 8 ns typ; TA = 25°C |
| Strobe Delay Time tpd(1) | 8 ns typ; TA = 25°C |
| AC Test Circuit Input Voltage | ±50 mV |
| AC Test Circuit Positive Supply | +10 V |
| AC Test Circuit Negative Supply | -10 V |
| AC Test Circuit Logic Supply | 5.25 V |
| AC Test Circuit Fanout 1 Load | R = 2.4 kΩ, C = 15 pF |
| AC Test Circuit Fanout 4 Load | R = 680 Ω, C = 30 pF |
| Datasheet Status | request_only |
Product Overview
The LM361 is a Texas Instruments high speed differential comparator in the Signal_Chain category. Its device description specifies complementary TTL outputs, making the output stage suitable for TTL-level logic interfacing where both output polarities are useful.
For timing-critical comparator paths, the LM361 specifies 14 ns typical and 20 ns maximum propagation delay for both tpd(0) and tpd(1) with 50 mV overdrive, TA = 25°C, the AC test circuit, and fanout = 1. Delay variation with overdrive from 5 mV to 500 mV is listed as 3 ns, and delay between output A and B is 2 ns typical and 5 ns maximum.
Supply and package data include 5 V to 15 V V+ operation, -6 V to -15 V V- operation, and 4.75 V to 5.25 V VCC operation. Package options are TO-100 10-pin, SOIC 14-pin, and PDIP 14-pin, with soldering limits specified for PDIP and SOIC assembly conditions.
Key Features
- High speed differential comparator device type
- Complementary TTL outputs for both output states
- 20 ns maximum propagation delay in feature summary
- 3 ns delay variation from 5 mV to 500 mV overdrive
- 14 ns typical tpd(0) at 50 mV overdrive
- 14 ns typical tpd(1) at 50 mV overdrive
- 2 ns typical delay between output A and B
- 8 ns typical strobe delay for tpd(0) and tpd(1)
- 4.75 V to 5.25 V logic supply operating range
- TO-100, SOIC, and PDIP package options
Typical Applications
- TTL-level comparator interfaces
- High speed differential threshold detection
- Strobe-controlled output gating
- Complementary logic output generation
- Fanout 1 AC-tested comparator loads
- Fanout 4 AC-tested comparator loads
Procurement Notes
When requesting a quote for LM361, 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
What output type does the LM361 provide?
The LM361 device description specifies complementary TTL outputs. The datasheet also lists TTL logic output levels, including a logical 1 output voltage of 2.4 V minimum and 3.3 V typical under the stated VCC and source current condition.
What is the LM361 maximum propagation delay?
The feature summary lists 20 ns maximum propagation delay. The electrical characteristics specify tpd(0) and tpd(1) as 14 ns typical and 20 ns maximum with 50 mV overdrive, TA = 25°C, the AC test circuit, and fanout = 1.
Which package options are listed for LM361?
The package information lists TO-100 (LME) 10-pin with 5.72 mm maximum height, SOIC (D/D0014A) 14-pin with 1.75 mm maximum height, and PDIP (N) 14-pin options.
What supply ranges are specified for LM361 operation?
For LM361 operation, the positive supply range is 5 V minimum to 15 V maximum, the negative supply range is -6 V minimum to -15 V maximum, and the logic supply range is 4.75 V minimum, 5 V typical, and 5.25 V maximum.
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.