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Texas Instruments LF353DRE4
- Part No.:
- LF353DRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LF353DRE4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,044
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Product details
Overview
LF353DRE4 from Texas Instruments is a JFET-input dual operational amplifier optimized for high-speed, low-input-bias-current applications including precision integrators, sample-and-hold circuits, and DAC output buffering. It delivers 3 MHz gain-bandwidth, 13 V/µs slew rate, and 50 pA typical input bias current across 0°C to 70°C operation.
For engineers reviewing the LF353DRE4 datasheet, LF353DRE4 pinout, LF353DRE4 application, or LF353DRE4 equivalent, key selection criteria include dual-channel JFET input stage performance, SOIC-8 package compatibility, ±15 V dual-supply operation, and thermal behavior under continuous 3.6 mA supply current.
Technical Context
The LF353DRE4 integrates two independent JFET-input op-amps on a single monolithic die, each featuring high-impedance (>10¹² Ω) inputs and bipolar output stages with 200 Ω internal series resistance for short-circuit protection. Its architecture supports both single- and dual-supply configurations with common-mode input range extending to within 4 V of either rail.
It operates over 0°C to 70°C with recommended supply voltages from ±3.5 V to ±18 V, delivering 100 dB typical CMRR and PSRR, and exhibits 18 nV/√Hz input voltage noise at 1 kHz. The device is not rail-to-rail but maintains stable unity-gain operation up to 3 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 3 MHz typical - enables stable closed-loop operation up to audio and control-loop frequencies |
| Slew Rate | 13 V/µs typical - supports fast transient response in pulse amplification and active filtering |
| Input Bias Current | 50 pA typical at 25°C - permits use of high-value feedback resistors without significant DC error |
| Input Offset Voltage | 10 mV typical - defines baseline DC accuracy in precision DC-coupled signal conditioning |
| Supply Current | 3.6 mA typical (per amplifier) - enables dual-opamp functionality with low power overhead in analog front-ends |
| Common-Mode Range | VCC– + 4 V to VCC+ – 4 V - constrains usable input swing in single-supply designs |
| Output Short-Circuit Duration | Unlimited - allows safe operation during transient overloads without latch-up or damage |
Pinout & Package
LF353DRE4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm with 1.27 mm lead pitch and 1.75 mm maximum height. Pin 1 is marked by a beveled corner or dot; the device uses standard JEDEC MS-012AA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier A output node; internally limited to ±13.5 V peak swing into 10 kΩ load |
| 1IN– | Inverting input | High-impedance JFET input for negative feedback configuration; sensitive to PCB leakage |
| 1IN+ | Noninverting input | High-impedance JFET input; common-mode range excludes VCC– rail |
| VCC– | Negative supply | Reference for dual-supply operation; must be ≥ –18 V absolute maximum |
| 2IN+ | Noninverting input | Independent amplifier B input; electrically isolated from Amplifier A except via shared supply rails |
| 2IN– | Inverting input | Amplifier B inverting node; matched offset and bias characteristics to Amplifier A |
| 2OUT | Output | Amplifier B output; 200 Ω series resistance provides inherent short-circuit protection |
| VCC+ | Positive supply | Reference for dual-supply operation; must be ≤ +18 V absolute maximum |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | 50 pA typical enables >10 MΩ feedback networks without measurable drift in integrator or filter applications |
| JFET input stage | 10¹² Ω typical input resistance preserves signal integrity in high-source-impedance sensor interfaces |
| Internally trimmed offset | 10 mV typical VIO reduces need for external nulling circuitry in DC-coupled instrumentation paths |
| Fast slew rate | 13 V/µs supports accurate reproduction of 1–2 Vpp signals above 100 kHz without distortion |
| Thermal stability | 10 µV/°C average VIO drift ensures <100 µV total offset shift over full 0°C–70°C operating range |
Applications
| Oscilloscope Vertical Amplifier | Solar Inverter Control Loop |
|---|---|
|
Use Scenario: Amplifying and conditioning fast-rising probe signals before ADC sampling in benchtop oscilloscopes. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, bandwidth, and DC offset adjustment per channel. Use Value: 3 MHz GBW and 13 V/µs slew rate preserve edge fidelity of sub-microsecond transients without overshoot. |
Use Scenario: Closed-loop current sensing and PWM error amplification in grid-tied solar inverter gate drivers. IC Role / Device Role / Timing Role: Dual op-amp implementing current loop compensation and voltage reference buffering. Use Value: Low 50 pA input bias avoids measurement error when interfacing with high-precision shunt resistors. |
| Pro Audio Mixer Channel | UPS Motor Drive Feedback |
|
Use Scenario: Summing and level-shifting line-level audio signals in analog mixing consoles with minimal crosstalk. IC Role / Device Role / Timing Role: Dual op-amp performing summing amplifier and DC-blocking buffer functions. Use Value: 120 dB typical crosstalk attenuation between channels prevents audible intermodulation in multi-channel systems. |
Use Scenario: Isolating and scaling motor phase current feedback in uninterruptible power supply inverters. IC Role / Device Role / Timing Role: Dual op-amp used for current-sense amplification and overcurrent comparator reference generation. Use Value: Matched amplifier pair characteristics ensure consistent gain and offset across redundant feedback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CDR | Lower 1.5 MHz GBW, 0.5 V/µs slew rate, but lower 10 pA input bias current and rail-to-rail output | Better for low-power, low-frequency sensor interfaces where speed is secondary to bias current | Select TLC272CDR when ultra-low input bias dominates over bandwidth requirements |
| TL072CDR | Higher 3 MHz GBW and 13 V/µs slew rate, but higher 65 pA input bias current and no internal offset trim | Preferred in cost-sensitive audio applications where offset trimming is handled externally | Select TL072CDR when matching LF353DRE4 speed with relaxed DC precision is acceptable |
Compared with LF353DRE4, TLC272CDR trades bandwidth for lower bias current and rail-to-rail output, while TL072CDR matches speed but requires external nulling for precision DC performance - making LF353DRE4 optimal for mid-speed, medium-precision dual-amplifier tasks requiring internal offset trim and robust short-circuit tolerance.
Availability
LF353DRE4 is available at Aetrix Electronics and suitable for motor integrated systems (UPS), renewable energy inverters (solar), and pro-audio equipment requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.
Supply support for LF353DRE4 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 specializing in analog, embedded processing, and digital signal technologies with decades of op-amp design heritage.
The LF353 product line was developed for cost-effective, high-speed analog signal conditioning in industrial control, test equipment, and power electronics - emphasizing JFET input performance without premium pricing.
FAQ
What is the maximum supply voltage rating for LF353DRE4?
The LF353DRE4 has absolute maximum supply ratings of ±18 V, meaning VCC+ may reach +18 V and VCC– may reach –18 V simultaneously. Operation beyond these limits risks permanent damage. Recommended operating range is ±3.5 V to ±18 V, with thermal derating required above 70°C ambient.
Does LF353DRE4 support single-supply operation?
Yes, LF353DRE4 supports single-supply operation with appropriate biasing. Its common-mode input range extends from VCC– + 4 V to VCC+ – 4 V, so with a +15 V supply and ground reference, inputs must stay between +4 V and +11 V. Output swing remains asymmetric unless level-shifted externally.
What is the thermal resistance of LF353DRE4 in SOIC-8 package?
The LF353DRE4 in SOIC-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 106.6°C/W under standard JEDEC test conditions. This value assumes a 1-inch² copper pad on a single-layer board; actual thermal performance improves significantly with PCB copper area and multilayer heatsinking.
How does LF353DRE4 compare to LM358 in terms of input stage technology?
LF353DRE4 uses a JFET-input stage delivering 50 pA typical input bias current and 10¹² Ω input resistance, whereas LM358 uses a bipolar input stage with ~45 nA bias current and ~2 MΩ input resistance. This makes LF353DRE4 superior for high-impedance sensor interfaces and precision integrators where leakage-induced errors must be minimized.
Is LF353DRE4 RoHS compliant and what is its moisture sensitivity level?
Yes, LF353DRE4 is RoHS compliant and carries a Moisture Sensitivity Level (MSL) rating of Level-1 at 260°C peak reflow, meaning it is not moisture-sensitive and can be stored indefinitely at ambient conditions without baking prior to soldering. Its lead finish is NiPdAu (NIPDAU).
LF353DRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 5 mV
- Current - Supply:
- 3.6mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LF353DRE4 FAQ
1.How can I place an order for LF353DRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LF353DRE4 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 LF353DRE4 reliable?
The price and inventory of LF353DRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LF353DRE4 is usually 5 days.
3.What payment methods are accepted for LF353DRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LF353DRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LF353DRE4?
LF353DRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LF353DRE4 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 LF353DRE4?
For technical support, including LF353DRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LF353DRE4 requirements.
6.How does Aetrix verify that LF353DRE4 is sourced from the original manufacturer or authorized distributors?
All LF353DRE4 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 LF353DRE4 meets industry standards.
7.What is the process for return or replacement of LF353DRE4?
All LF353DRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LF353DRE4, 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 LF353DRE4 part is unused and in its original packaging.
Return procedure for LF353DRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LF353DRE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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