LM258H - Dual 30V 700kHz Op Amp | Texas Instruments
料号： LM258H ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LM258H 概述
An operational amplifier is an active semiconductor device that uses high-gain differential amplification to increase the voltage difference between its differential input and drive its output. Operational amplifiers belong to the amplifier IC hierarchy and are commonly used in sensor interfaces, buffer stages, integrators, comparators, and control loops. The LM258 family is positioned as a general-purpose bipolar amplifier rather than a high-speed, low-noise, or precision-specific device.
The manufacturer identifies the LM258 family as dual, 30 V, 700 kHz operational amplifiers. The LM258H ordering variant is associated with the TO-99-8 metal-can package, while the broader LM258 family also includes other package and temperature options. The verified distributor listing describes LM258H as a two-circuit amplifier in a TO-99-8 package. The H suffix is used in the manufacturer ordering information, but individual suffix-specific electrical values must be confirmed against the ordering table in the manufacturer datasheet.
The 700 kHz gain-bandwidth product is the principal verified speed parameter. It describes the approximate closed-loop bandwidth available for unity-gain operation under the stated test conditions, subject to the manufacturer datasheet's load and test assumptions. The 30 V rating identifies the device as suitable for higher-voltage analog signal chains than basic low-voltage single-supply amplifiers, provided the selected grade and supply arrangement meet the complete datasheet limits. Operating temperature is specified from -25°C to 85°C for the LM258 family.
Typical uses include buffered sensor signals, low-frequency active filters, analog summing and difference amplifiers, current-loop buffering, audio and communications signal conditioning, and general industrial control interfaces. Because the verified data does not provide output-current, input-offset, noise, slew-rate, load-current, common-mode, or package-dimension values, those parameters should not be inferred for design calculations. Engineers should use the manufacturer datasheet for the exact LM258H grade limits and test conditions.
The main design consideration is ensuring that the selected dual amplifier's pinout, supply voltages, input common-mode range, output swing, and load conditions match the completed analog design. TO-99-8 is a through-hole metal-can package, so PCB footprint selection and mechanical clearance require the package drawing rather than a modern SMD assumption. Decoupling, grounding, and stable feedback compensation remain necessary even when using a general-purpose amplifier.
This page combines the verified manufacturer product identity, distributor package information, ordering context, and design-oriented interpretation. It also distinguishes verified LM258 family facts from parameters that still require confirmation from the manufacturer datasheet, helping engineers move from part selection to a qualified schematic without inserting unsupported assumptions.
直接替换替代料： LM258H ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
LM158H
✅ 直接替换📋 参考替代料（不在目录中）
LM358H
✅ 直接替换📋 参考替代料（不在目录中）
LM2904H
✅ 直接替换📋 参考替代料（不在目录中）
LM324H
✅ 直接替换📋 参考替代料（不在目录中）
LM2903H
✅ 直接替换📋 参考替代料（不在目录中）
LM258H 最大额定值与电气特性
| Product Type | Dual general-purpose operational amplifier |
| Number of Amplifiers | 2 circuits |
| Supply Voltage Rating | 30 V |
| Gain-Bandwidth Product | 700 kHz |
| 工作温度 | -25°C to 85°C |
| 封装 | TO-99-8 metal-can through-hole package |
| Amplifier Architecture | Bipolar operational amplifier family |
| Manufacturer | Texas Instruments |
| Manufacturer Product Family | LM258 |
| Ordering Variant | LM258H |
| Distributor Package Description | TO-99-8 |
| Distributor Circuit Description | 2 circuit |
| Product Classification | Standard general-purpose amplifier |
| Operating Temperature Classification | -25°C to 85°C for LM258 family |
LM258H to-99-8 引脚配置指南
LM258H（to-99-8 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： LM258H.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LM258H 适用于 6 应用s: Buffered Sensor Signal Conditioning, Low-Frequency Active Filters, Analog Summing and Difference Amplifier, Audio and Communications Signal Conditioning, Current and Voltage Buffering, Industrial Control Signal Interfaces.
Buffered Sensor Signal Conditioning
The LM258H fits low-bandwidth sensor interfaces where a dual general-purpose operational amplifier can buffer two related signals without introducing a separate amplifier package for each channel. Its verified LM258-family specification of 700 kHz gain-bandwidth product provides a starting point for closed-loop bandwidth planning, while the 30 V family rating supports higher-voltage analog environments than basic low-voltage amplifiers. The designer should verify input offset, input bias current, common-mode range, output swing, and noise from the complete datasheet before selecting resistor values. In practice, the TO-99-8 footprint, short feedback paths, stable reference return, and supply bypassing determine whether the nominal bandwidth is useful in the finished sensor circuit.
推荐
Low-Frequency Active Filters
LM258H is applicable to active-filter signal paths whose cutoff frequencies are consistent with a 700 kHz gain-bandwidth-product general-purpose amplifier. The dual package can implement two amplifier sections, reducing the number of separate through-hole packages while simplifying board population. The designer must account for gain-bandwidth, open-loop gain, slew rate, noise, and output-current limits in stability and distortion calculations; several of those values are not present in the verified data and must be taken from the manufacturer datasheet. Component tolerances and the TO-99-8 lead geometry also affect filter repeatability, so prototype the layout and verify the final response across supply and temperature conditions.
推荐
Analog Summing and Difference Amplifier
The LM258H can serve as the active element in a dual-channel summing or differential signal stage for instrumentation and industrial control interfaces. The verified 30 V family rating makes it a candidate for signal paths with more headroom than low-voltage single-supply op amps, while the 700 kHz gain-bandwidth product is relevant for low-frequency closed-loop filtering and signal averaging. Exact common-mode range, output swing, offset, bias current, and slew-rate data are not verified here, so the amplifier cannot be released into a precision design from family-level information alone. Keep resistor networks close to the relevant amplifier pins, use a low-impedance reference return, and verify that both halves of the dual package share the same supply and thermal conditions.
推荐
Audio and Communications Signal Conditioning
LM258H may be used in low-frequency audio or communications signal-conditioning blocks where two general-purpose amplifiers are needed in one through-hole package. The verified family gain-bandwidth value of 700 kHz provides context for modest signal bandwidth, but it is not a substitute for the exact noise, slew-rate, output-current, and load-drive specifications needed to set audio expectations. The amplifier should be evaluated with the actual source impedance, termination, coupling network, and supply rails. Keep the input and feedback traces compact, maintain a quiet ground reference, and verify that the selected TO-99-8 footprint has adequate clearance around the metal can. If the design requires very low distortion or wide dynamic range, compare a dedicated audio amplifier instead.
推荐
Current and Voltage Buffering
The LM258H is applicable to voltage-buffer and current-buffer front ends in general industrial measurement systems when the circuit bandwidth is modest and the source and load conditions are compatible with the final datasheet limits. Its dual topology allows two amplifier channels in one TO-99-8 package, which can simplify board layout compared with separate single-amplifier packages. The verified data identifies a 30 V family rating and 700 kHz gain-bandwidth product, but does not establish input offset, bias current, output current, or output-voltage swing. Those specifications determine whether the buffer preserves accuracy and drives the intended load. Use a low-impedance feedback connection, avoid excessive trace resistance, and validate stability with the actual sensor, cable, and load network.
推荐
Industrial Control Signal Interfaces
LM258H can be evaluated for industrial control interfaces that translate sensor or command signals into an analog node with moderate bandwidth requirements. The family-level 30 V rating and -25°C to 85°C operating range provide useful initial envelope checks for equipment operating above consumer-temperature limits. The dual package can support separate signal-conditioning or feedback paths, while the TO-99-8 through-hole format suits repairable and mechanically rugged assemblies. Before design freeze, verify the exact input common-mode range, output swing, supply-current behavior, electrical limits, and isolation expectations. Also confirm the application enclosure, connector leakage, grounding strategy, and temperature rise around the metal can; those system conditions can dominate analog accuracy even when the amplifier itself is within its datasheet limits.
推荐
推荐产品汇总
工程参考数据： LM258H ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LM158H | LM358H | LM2904H | LM324H | LM2903H |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
关键差异点
- Verified family positioning （对比 LM158H)
- Package identity （对比 LM358H)
- Source availability （对比 LM2904H)
- Temperature context （对比 LM324H)
设计说明
Use the manufacturer datasheet for the exact LM258H supply, input common-mode, output swing, and current limits; only the 30 V family rating and 700 kHz gain-bandwidth product were verified here. Place the required bypass capacitor at the device supply pins and return its ground directly to the analog ground plane. Confirm whether the circuit is single-supply or dual-supply before selecting resistor references.
TO-99-8 is a through-hole metal-can package, so PCB layout must follow the exact package drawing rather than a generic SMD footprint. Keep input and feedback traces short, route them away from high-current switching nodes, and provide adequate metal-can clearance. For dual channels, preserve symmetric grounding and avoid sharing sensitive return paths with output loads.
Do not treat the LM258 family name as proof that LM158H, LM358H, LM2904H, LM324H, or LM2903H is automatically interchangeable. Verify suffix-specific pinout, supply range, temperature grade, offset, bias current, common-mode range, output swing, and load drive before substitution. The verified comparison result explicitly warns that LM158H and LM258H have similar functions but differing main parameters.
合规信息
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status for LM258H. These fields must be confirmed from the current manufacturer product documentation or supplier declarations.
