LM358PWRG4 - Dual 700 kHz Op Amp, 30 V, TSSOP-8 | TI
MPN: LM358PWRG4 ⚠ آخرین فرصت خریدLM358PWRG4 نمای کلی
An operational amplifier is a high-gain differential amplifier used to compare, amplify, filter, buffer, or scale signals. The LM358 belongs to the operational-amplifier hierarchy within analog signal-chain ICs and broader semiconductor devices. Its internal frequency compensation removes the need for an external compensation capacitor in most closed-loop configurations, simplifying PCB layout and reducing the component count in cost-sensitive industrial, consumer, instrumentation, and control designs.
The principal features of the LM358PWRG4 include a dual-amplifier configuration, 700 kHz gain-bandwidth product, 0.3 V/us slew rate, 3 V typical low supply-current drain, approximately 3 mV typical input offset voltage, and approximately 2 nA typical input offset current. Its common-mode input range can include ground, making it useful in single-supply sensor interfaces where the signal begins near 0 V. The 30 V maximum supply rating provides additional operating margin compared with devices limited to lower supply voltages.
Internally, the LM358 uses a bipolar transistor input and output stage optimized for economy and supply-voltage flexibility rather than rail-to-rail input or output operation. The amplifiers are frequency-compensated for stable operation with external feedback networks. Because output swing and input common-mode range are not rail-to-rail, a designer should check the signal amplitudes and output voltage required by the selected feedback network, especially with low supply voltages.
Typical uses include low-cost sensor-signal conditioning, current-loop and grounded-transducer interfaces, audio preamplification, voltage comparators, active filters, motor and relay control, industrial equipment, and general-purpose analog modules. The TSSOP-8 footprint supports compact, high-density PCB layouts, while the dual channel can implement two matched amplifier functions or one differential amplifier followed by a separate amplifier stage.
The main design consideration is supply headroom. Check input common-mode limits, differential input limits, output swing, load capability, and stable feedback gain for the actual supply voltage. Place bypass capacitors close to the supply pins and maintain a short, quiet output path, especially when the amplifier drives a long trace or an ADC input. Because the part is listed at last-time-buy status, production designs should evaluate an explicitly qualified second source rather than assume unlimited lifecycle availability.
This page combines the exact LM358PWRG4 ordering information, technical characteristics, lifecycle status, package details, and engineering guidance into one purchasing reference. It also identifies same-footprint alternatives and explains where analog-performance qualification must be checked before substitution.
جایگزین‌های drop-in برای LM358PWRG4 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای LM358PWRG4 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Maximum Supply Voltage, Number of Amplifiers, Package.
LM358APWR
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
LM2904PW
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←LM358PWRG4-JF
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
LM358PWRG4 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Amplifier Type | General-purpose dual operational amplifier |
| Number of Circuits | 2 circuits |
| Number of Amplifiers | 2 amplifiers |
| Maximum Supply Voltage | 30 V |
| Minimum Operating Supply Voltage | 3 V |
| Gain-Bandwidth Product | 700 kHz |
| Slew Rate | 0.3 V/us |
| Typical Supply Current Drain | 0.7 mA per amplifier |
| Typical Input Offset Voltage | 3 mV |
| Typical Input Offset Current | 2 nA |
| Typical Input Bias Current | 20 nA |
| Differential Input Voltage Range | Up to 32 V |
| محدوده دمای کاری | 0 C to 70 C |
| بسته‌بندی | 8-pin TSSOP |
| Package Width | 4.40 mm |
| نوع نصب | Surface mount |
| Packaging | Tape and reel |
| Moisture Sensitivity Level | MSL 1 |
| AEC-Q100 Qualification | Not qualified |
پیکربندی پین LM358PWRG4
| پین 1 | OUT A — Amplifier A output |
| پین 2 | IN A- — Inverting input for amplifier A |
| پین 3 | IN A+ — Non-inverting input for amplifier A |
| پین 4 | V- — Negative supply connection |
| پین 5 | IN B+ — Non-inverting input for amplifier B |
| پین 6 | IN B- — Inverting input for amplifier B |
| پین 7 | OUT B — Amplifier B output |
| پین 8 | V+ — Positive supply connection |
کاربردهای معمول
LM358PWRG4 مناسب است برای 6 کاربردs: Grounded Sensor Signal Conditioning, Current and Voltage Monitoring, Audio Preamplification, Active Filter and Control Loop, Motor and Relay Control, Comparator and Threshold Detection.
Grounded Sensor Signal Conditioning
The LM358PWRG4 is appropriate for amplifying small transducer signals that sit near 0 V because its common-mode input range includes ground. One channel can provide gain, while the other can perform filtering or buffer an ADC input. Its 700 kHz gain-bandwidth product and approximately 3 mV typical input offset voltage are useful for low-frequency measurement systems, although offset drift, sensor impedance, and ADC accuracy still require analysis. The 8-pin TSSOP package also permits a compact analog section. Engineers should establish the signal range, allowable error, and output swing before fixing the feedback network.
پیشنهادی
Current and Voltage Monitoring
The LM358PWRG4 can amplify the output of a current-sense or resistive voltage-monitoring front end when the signal remains inside the amplifier's common-mode range. Its typical 2 nA input offset current and 20 nA input bias current help preserve accuracy when working with high-impedance sensor networks, while the dual configuration permits separate monitor and reference channels. The 30 V maximum supply supports many industrial sensing rails. For reliable deployment, verify differential-input limits near the supply rails, output headroom, noise performance, and the stability of the selected gain.
پیشنهادی
Audio Preamplification
The LM358PWRG4 can serve as a general-purpose audio preamplifier for modest line-level signals where low cost and dual-channel convenience matter more than rail-to-rail output capability. Its 700 kHz gain-bandwidth product covers audio-band amplification, and the 0.3 V/us slew rate is generally sufficient for low-to-moderate amplitude signals. A practical design should use the two channels for stereo or balanced signal paths and include suitable input and feedback networks. Check the output swing at the selected supply voltage, because the output does not reach the positive supply rail.
پیشنهادی
Active Filter and Control Loop
The LM358PWRG4's two compensated channels make it practical to implement low-frequency active filters, integrators, or basic control loops without external compensation capacitors. Its 700 kHz gain-bandwidth product supports modest closed-loop bandwidth, and the second channel can perform a complementary filter or feedback function. Component tolerances and input bias current can influence precision in high-impedance filters, so use practical resistor values and simulate the complete network. The chosen feedback gains must remain within the stable operating range described by the manufacturer.
پیشنهادی
Motor and Relay Control
The LM358PWRG4 can amplify a low-level controller output to drive a relay, solenoid driver, or power-stage command in a non-precision application. Its dual channels allow one amplifier to shape the command while the second provides sensing or threshold detection. The 30 V maximum supply provides operating margin in 24 V industrial systems, but coil transients require external protection and the amplifier output must not drive the load directly. Verify output-current capability, output swing, and the inductive load's isolation from sensitive analog nodes.
پیشنهادی
Comparator and Threshold Detection
The LM358PWRG4 can implement a threshold detector or comparator-style circuit when open-loop behavior and output saturation are acceptable. Its common-mode input range including ground supports references near the lower supply rail, and the two channels permit comparison of one signal with a reference or monitoring of two thresholds. Because it is a general-purpose operational amplifier rather than a dedicated comparator, propagation delay and output-swing behavior depend on the application and operating conditions. Confirm the required response time and saturation voltage in the manufacturer datasheet.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای LM358PWRG4 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | LM358APWR | LM2904PW | LM358PWRG4-JF |
|---|---|---|---|---|
| Package | 8-pin TSSOP | 8-pin TSSOP - same package | 8-pin TSSOP - same package | 8-pin TSSOP - same package |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Configuration | Dual | Dual | Dual | Dual |
| Amplifier Type | General purpose | General purpose | General purpose | General purpose |
تفاوت‌های کلیدی
- Dual general-purpose channels in a compact TSSOP-8 footprint (در مقابلLM358APWR)
- Documented 30 V maximum supply capability (در مقابلLM358PWRG4-JF)
- Operation from 3 V supports lower-voltage systems (در مقابلLM2904PW)
یادداشت‌های طراحی
Check the complete operating range rather than only the nominal supply voltage. The LM358PWRG4 has a 30 V maximum supply rating, but the output does not reach the positive rail and the input common-mode range is not rail-to-rail. Design the feedback network so that the required signal and output remain within the limits shown in the manufacturer datasheet. A single 5 V rail is practical for many grounded-input circuits, while 24 V industrial systems require additional attention to transients and absolute maximum limits.
Place the supply bypass capacitor immediately between pin 8 and pin 4, with the ground connection using the shortest practical return path. Keep the feedback resistors and input components close to pins 1 through 7 to minimize parasitic capacitance and susceptibility to noise. The TSSOP-8 land pattern provides little lead spacing, so inspect the solder mask and assembly process to avoid bridging adjacent pins. Route output and high-impedance input traces away from switching nodes and relay-driver traces.
Do not assume the two amplifier channels can be connected together for increased output current or bandwidth. The channels share supply pins but should normally implement separate closed-loop functions. Also avoid treating the amplifier as a precision comparator when fast overdrive recovery is required, and do not assume rail-to-rail input or output behavior. Finally, because the LM358PWRG4 is listed at last-time-buy status, qualify an approved alternative while the original supply and change-control requirements remain active.
اطلاعات انطباق
The operating range of 0 C to 70 C is not an automotive temperature grade, so the device is not AEC-Q100 qualified. RoHS, REACH, lead-free, halogen-free, and conflict-minerals statuses require confirmation from the manufacturer product documentation.