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Texas Instruments LM258P
- Part No.:
- LM258P
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM258P.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,127
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Product details
Overview
LM258P from Texas Instruments is a dual operational amplifier designed for cost-sensitive industrial and consumer applications, featuring rail-to-rail input capability (common-mode range includes ground), 3 V to 32 V single-supply operation, 0.7 MHz unity-gain bandwidth, 0.3 V/µs slew rate, and 5 mV maximum input offset voltage at 25°C. It serves as a general-purpose signal conditioning and amplification IC in power supply feedback loops, sensor interfaces, and motor control circuits.
For engineers reviewing the LM258P datasheet, LM258P pinout, LM258P application, or LM258P equivalent, key selection considerations include its –25°C to +85°C operating temperature range, PDIP-8 package compatibility, output swing within 20 mV of ground under light load, and absence of integrated EMI filtering-distinguishing it from B-version successors.
Technical Context
The LM258P implements two independent high-voltage op amps in a single monolithic IC with internally compensated frequency response optimized for unity-gain stability. Its input stage uses PNP transistors enabling common-mode input voltage down to the negative rail (ground in single-supply use), supporting direct sensing of low-side current shunts and battery monitoring.
Output stage delivers ±20 mA short-circuit protected sourcing/sinking capability with rail-to-rail output swing limited by load: at 5 mA, positive swing reaches within 1.6 V of V+, and negative swing extends to within 20 mV of V– at TA = 25°C. Quiescent current is 350 µA per amplifier (typical) across its full 3 V–32 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 32 V - supports wide-input industrial power rails and battery-powered systems without regulation. |
| Unity-Gain Bandwidth | 0.7 MHz - enables stable amplification up to audio frequencies and basic control-loop compensation. |
| Slew Rate | 0.3 V/µs - limits large-signal transient response; suitable for DC–10 kHz signal conditioning, not high-speed pulse shaping. |
| Input Offset Voltage (max) | 5 mV at 25°C - defines worst-case DC error in precision gain stages; requires trimming or calibration in <1% accuracy designs. |
| Common-Mode Input Range | Includes V– (ground) - allows direct interface to low-side current sensors and single-supply transducer outputs. |
| Output Swing (V– side) | Within 20 mV of V– at RL ≥10 kΩ - supports near-ground-level signal detection in sensor front-ends. |
| Quiescent Current / Amp | 350 µA typical - enables low-power operation in always-on subsystems without thermal derating concerns. |
Pinout & Package
LM258P is packaged in an 8-pin PDIP (Plastic Dual In-line Package) with 9.81 mm × 6.35 mm body size and 0.1-inch lead pitch. This through-hole package supports manual prototyping, legacy PCB assembly, and high-reliability industrial environments requiring mechanical robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of first amplifier - drives external loads up to ±20 mA; requires decoupling capacitor if driving capacitive loads >100 pF. |
| 2 | IN1– | Inverting input of first amplifier - high-impedance node (ZIC = 4 GΩ||1.5 pF); sensitive to layout-induced noise and leakage. |
| 3 | IN1+ | Non-inverting input of first amplifier - accepts signals referenced to V–; common-mode range extends to V–. |
| 4 | V– | Negative supply terminal - connects to ground in single-supply configurations; must be low-impedance for stability. |
| 5 | IN2+ | Non-inverting input of second amplifier - electrically isolated from IN1+; shares same V– reference. |
| 6 | IN2– | Inverting input of second amplifier - used for differential or inverting gain configurations; matched bias current to IN1–. |
| 7 | OUT2 | Output of second amplifier - independent channel; no crosstalk specification provided, but typical channel separation >120 dB at 1 kHz. |
| 8 | V+ | Positive supply terminal - accepts up to 32 V; requires local 0.1 µF ceramic bypass capacitor near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (down to V–) | Enables direct connection to ground-referenced sensors (e.g., shunt resistors, thermistors) without level-shifting circuitry. |
| Single-supply operation (3 V–32 V) | Eliminates need for split supplies in embedded systems, reducing bill-of-materials and board space in industrial controllers. |
| Internal frequency compensation | Guarantees unity-gain stability without external components - simplifies design of buffers, comparators, and active filters. |
| Output short-circuit protection | Withstands indefinite short to V– or V+ at TA ≤25°C and VS ≤15 V - improves system resilience during fault conditions. |
| High CMRR (≥65 dB) | Rejects common-mode noise on differential inputs (e.g., motor drive feedback), preserving signal integrity in noisy environments. |
Applications
| Power Supply Feedback Loop | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Regulating output voltage in AC/DC adapters and DC/DC converters using optocoupler-isolated feedback. IC Role / Device Role / Timing Role: Error amplifier comparing sensed output against reference; sets loop gain and phase margin. Use Value: Input common-mode range including ground allows direct sensing of low-side shunt-based current monitors in primary-side regulation. |
Use Scenario: Amplifying millivolt-level outputs from RTDs, thermocouples, or bridge-based pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (with external resistors) or buffer for ADC input drivers. Use Value: 5 mV max VOS and 0.7 MHz GBW support 12-bit accuracy in 100 Hz–1 kHz measurement bandwidths without trimming. |
| Motor Control Interface | Desktop Peripheral Circuitry |
|
Use Scenario: Monitoring back-EMF or phase current in brushed DC motor drivers for speed regulation and stall detection. IC Role / Device Role / Timing Role: Current sense amplifier and comparator input buffer; provides analog signal conditioning prior to microcontroller ADC sampling. Use Value: Output swing within 20 mV of ground ensures full dynamic range utilization when interfacing to 3.3 V or 5 V microcontrollers. |
Use Scenario: Managing paper jam detection, tray position sensing, and toner level monitoring in multi-function printers. IC Role / Device Role / Timing Role: General-purpose analog signal conditioner for discrete sensor outputs and status indicators. Use Value: PDIP-8 package enables easy hand-soldering during NPI and repair; 350 µA quiescent current minimizes standby power draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358P | Same pinout and architecture, but rated for 0°C to 70°C and 7 mV max VOS (vs. LM258P's –25°C to 85°C and 5 mV). | Less suitable for extended-temperature industrial enclosures; acceptable for commercial-grade office equipment. | Select LM358P only if ambient temperature stays within 0°C–70°C and higher offset is tolerable. |
| LM2904P | Identical pinout, wider –40°C to 125°C rating, 7 mV max VOS, and 3 V–26 V supply range (vs. LM258P's 3 V–32 V). | Better for automotive under-hood or high-temp industrial environments, but lower max supply voltage limits HV applications. | Choose LM2904P when extended temperature range is critical and supply voltage remains ≤26 V. |
Compared with LM358P and LM2904P, the LM258P offers the optimal balance of extended temperature range (–25°C to 85°C), tighter input offset (5 mV), and highest supply voltage tolerance (32 V), making it preferred for industrial power supplies and motor drives where reliability across moderate thermal extremes is required.
Availability
LM258P is available at Aetrix Electronics and suitable for industrial motor control, desktop peripheral electronics, and power supply feedback applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM258P includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets since 1930.
The LM258P belongs to TI's industry-standard dual op amp product line, engineered for cost-effective, reliable analog signal conditioning in temperature-stressed industrial systems where legacy compatibility and long-term availability are essential.
FAQ
What is the operating temperature range of the LM258P?
The LM258P is specified for operation from –25°C to +85°C ambient temperature. This extended industrial temperature range exceeds the 0°C to 70°C rating of the LM358P and supports deployment in non-air-conditioned factory environments, outdoor kiosks, and enclosed motor drive cabinets where internal temperatures rise significantly above ambient.
Does the LM258P have rail-to-rail input or output capability?
The LM258P features rail-to-rail input capability - its common-mode input voltage range includes the negative supply rail (V–), enabling direct sensing of ground-referenced signals. However, its output does not swing rail-to-rail: under 5 mA load, it reaches within 1.6 V of V+ and within 20 mV of V– at 25°C. Full rail-to-rail output requires newer alternatives like the LM358B.
Can the LM258P replace the LM358P in existing designs?
Yes, the LM258P is pin-compatible and functionally equivalent to the LM358P, with identical SOIC-8 and PDIP-8 footprints. Its tighter 5 mV max input offset voltage and extended –25°C to +85°C temperature range provide improved performance in the same layout - no PCB changes are needed for drop-in replacement in most applications.
What is the maximum supply voltage for the LM258P?
The LM258P supports a maximum supply voltage of 32 V (V+ to V–). This exceeds the 26 V limit of the LM2904P and matches the LM358P's rating, making it suitable for 24 V industrial bus systems and unregulated 28 V aircraft-derived supplies where headroom above nominal voltage is critical for transient tolerance.
Is the LM258P RoHS compliant and lead-free?
Yes, the LM258P is manufactured in RoHS-compliant, lead-free PDIP packaging per TI's current environmental specifications. The device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements and carries TI's standard 10-year product longevity commitment for industrial-grade components.
LM258P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 700 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 500µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM258P FAQ
1.How can I place an order for LM258P through Aetrix?
Please submit a Request for Quotation (RFQ) for LM258P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM258P reliable?
The price and inventory of LM258P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM258P is usually 5 days.
3.What payment methods are accepted for LM258P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM258P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM258P?
LM258P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM258P order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM258P?
For technical support, including LM258P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM258P requirements.
6.How does Aetrix verify that LM258P is sourced from the original manufacturer or authorized distributors?
All LM258P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM258P meets industry standards.
7.What is the process for return or replacement of LM258P?
All LM258P units undergo pre-shipment inspection (PSI). If there is an issue with LM258P, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM258P part is unused and in its original packaging.
Return procedure for LM258P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM258P Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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