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Analog Devices Inc. LT1358IS8#TRPBF
- Part No.:
- LT1358IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1358IS8#TRPBF.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,295
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Product details
Overview
LT1358IS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual high-speed voltage-feedback operational amplifier with 25MHz gain bandwidth, 600V/µs slew rate, and 2.5mA maximum supply current per amplifier. It features matched high-impedance inputs, unity-gain stability, and C-Load™ drive capability for any capacitive load - making it ideal for precision data acquisition systems, active filters, and photodiode amplification circuits operating across ±2.5V to ±15V supplies.
For engineers reviewing the LT1358IS8#TRPBF datasheet, LT1358IS8#TRPBF pinout, LT1358IS8#TRPBF application, or LT1358IS8#TRPBF equivalent, key selection criteria include guaranteed –40°C to +85°C operation, 600µV max input offset voltage, 8nV/√Hz input noise, 115ns 0.1% settling time (10V step), and SO-8 package compatibility with standard surface-mount assembly processes.
Technical Context
The LT1358IS8#TRPBF employs a hybrid voltage-feedback topology that delivers current-feedback–like slewing performance while retaining precise DC accuracy and matched input impedance. Its single-stage design enables fast settling and low distortion, with internal compensation ensuring stability into any capacitive load without external components.
It operates over ±2.5V to ±15V supplies, delivering ±12.5V output swing into 500Ω at ±15V and ±3V into 150Ω at ±5V. Input common-mode range extends to within 1.1V of either rail at ±2.5V supply, and channel separation exceeds 98dB at ±15V, supporting dual-channel signal conditioning without crosstalk degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 25MHz typical at ±15V - supports closed-loop designs up to 25MHz with AV = 1, enabling wideband instrumentation and video signal conditioning. |
| Slew Rate | 600V/µs typical at ±15V - ensures faithful reproduction of fast transients (e.g., 10V step in ≤115ns to 0.1%) in data acquisition front-ends. |
| Input Offset Voltage | 0.6mV max at ±15V - minimizes DC error in precision gain stages and sensor interfaces without trimming. |
| Input Noise Voltage | 8nV/√Hz at 10kHz - critical for low-level signal amplification in photodiode and strain gauge applications. |
| Supply Current | 2.5mA max per amplifier at ±15V - balances speed and power efficiency for dual-channel portable or thermally constrained systems. |
| Output Swing | ±12.5V into 500Ω at ±15V - drives standard analog interface loads (e.g., ADC drivers, line drivers) without external boost circuitry. |
| Settling Time | 115ns to 0.1% for 10V step - meets timing requirements for 10+ MS/s sampling systems with minimal acquisition dead time. |
Pinout & Package
LT1358IS8#TRPBF is housed in an 8-pin plastic SO (SO-8) package with standard narrow-body footprint (0.150" width), RoHS-compliant lead-free finish, and tape-and-reel packaging (#TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | –IN A | Inverting input of Amplifier A - high-impedance node (≥35MΩ) with matched NPN/PNP input stage for bias cancellation. |
| 2 | +IN A | Non-inverting input of Amplifier A - identical impedance and noise characteristics as Pin 1; balanced source resistance recommended for DC accuracy. |
| 3 | V+ | Positive supply rail - accepts ±2.5V to ±15V; total supply voltage must not exceed 36V. |
| 4 | V– | Negative supply rail - referenced to system ground; supports split or single-supply configurations with level-shifting. |
| 5 | +IN B | Non-inverting input of Amplifier B - electrically isolated from Amplifier A; enables independent dual-channel operation. |
| 6 | –IN B | Inverting input of Amplifier B - same input structure and specifications as Pin 1; no crosstalk coupling above 98dB. |
| 7 | OUT B | Output of Amplifier B - capable of sourcing/sinking ≥25mA, driving 150Ω to ±3V at ±5V supply. |
| 8 | OUT A | Output of Amplifier A - fully rail-to-rail capable under specified load conditions; stable with >1000pF capacitive loads. |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ Drive Capability | Stable into any capacitive load without external compensation - eliminates need for isolation resistors when driving coaxial cables or ADC input capacitance. |
| Unity-Gain Stable | No external compensation required for AV = 1 configurations - simplifies design of buffers and voltage followers in high-speed signal chains. |
| High Slew Rate / Low Supply Current Ratio | 600V/µs per 2.5mA - delivers superior speed-power efficiency vs. legacy high-speed op-amps like LM6362 or AD811. |
| Wide Supply Range | ±2.5V to ±15V operation - supports both low-voltage portable systems and industrial ±15V signal conditioning rails. |
| Guaranteed Industrial Temp Range | –40°C to +85°C performance validated - suitable for automotive engine control modules and outdoor instrumentation without derating. |
Applications
| Photodiode Amplifier | Data Acquisition Front-End |
|---|---|
Use Scenario: Converting weak current from a reverse-biased photodiode into a stable, low-noise voltage signal for optical sensing in medical pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with low input bias current (≤500nA) and 8nV/√Hz noise to maximize SNR at low light levels. Use Value: Enables detection of sub-nA photocurrents with <0.1% linearity error and <115ns settling - critical for accurate SpO₂ calculation. | Use Scenario: Driving the input of a 14-bit, 10MS/s SAR ADC in an automated test equipment (ATE) system requiring fast settling and minimal code-dependent errors. IC Role / Device Role / Timing Role: Precision buffer and gain stage with 0.6mV max VOS and 115ns 0.1% settling to meet ADC aperture uncertainty budgets. Use Value: Reduces acquisition dead time by >30% vs. slower op-amps, increasing test throughput without sacrificing ENOB. |
| Active Filter (4th Order Butterworth) | DAC I-to-V Converter |
Use Scenario: Implementing a 200kHz, 4th-order low-pass filter in ultrasound receive beamforming to suppress out-of-band noise before digitization. IC Role / Device Role / Timing Role: Dual-amplifier biquad section with 25MHz GBW and low phase distortion to preserve pulse shape integrity. Use Value: Maintains group delay flatness within ±2ns across passband - prevents waveform dispersion in time-critical echo processing. | Use Scenario: Converting current output from a high-resolution DAC (e.g., LTC2757) into a precise unipolar/bipolar voltage for actuator control in industrial PLC analog outputs. IC Role / Device Role / Timing Role: Precision I-to-V converter with matched inputs and low VOS drift (5µV/°C) to ensure monotonicity over temperature. Use Value: Achieves <0.01% FSR integral nonlinearity across –40°C to +85°C - eliminates calibration at end-of-line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1362CS8#TRPBF | Higher 50MHz GBW and 800V/µs slew rate, but 4mA supply current per amp and 1mV max VOS. | Better for >30MHz closed-loop bandwidth needs; less suitable for battery-powered or thermally limited dual-channel designs. | Select when bandwidth headroom >2× required and power budget allows +60% per-channel current. |
| LT1355CS8#TRPBF | Lower 12MHz GBW and 400V/µs slew rate, but only 1mA supply current per amp and 0.8mV max VOS. | Ideal for cost- and power-sensitive applications where 12MHz bandwidth suffices (e.g., audio preamps, sensor signal conditioning). | Select when optimizing for quiescent power and moderate speed - trades 52% bandwidth for 60% lower supply current. |
Compared with LT1358IS8#TRPBF, LT1362CS8#TRPBF offers higher bandwidth at increased power cost, while LT1355CS8#TRPBF provides lower power at reduced speed - enabling designers to scale performance precisely to system-level timing and thermal constraints.
Availability
LT1358IS8#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, precision instrumentation front-ends, and industrial analog signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for LT1358IS8#TRPBF 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
Analog Devices acquired Linear Technology in 2017 and maintains full product support, manufacturing, and technical documentation for legacy Linear parts including the LT1358 family.
The LT1358 series was designed as a dual high-speed op-amp targeting precision, wideband analog signal processing in data acquisition, instrumentation, and communications infrastructure where speed, noise, and DC accuracy must coexist.
FAQ
What is the guaranteed operating temperature range for LT1358IS8#TRPBF?
The LT1358IS8#TRPBF is specified and tested over –40°C to +85°C, with all electrical parameters (including input offset voltage, slew rate, and gain bandwidth) guaranteed across this full industrial temperature range - unlike the 'C' grade which is only characterized from 0°C to 70°C.
Can LT1358IS8#TRPBF drive a 1000pF capacitive load without oscillation?
Yes, LT1358IS8#TRPBF features Linear Technology's C-Load™ architecture and is explicitly designed to remain stable with any capacitive load, including 1000pF. The internal compensation adapts to load capacitance, maintaining ≥45° phase margin even at full rated output swing - eliminating need for external isolation resistors in ADC driver or cable-driving applications.
What is the maximum output current capability of LT1358IS8#TRPBF at ±5V supply?
At ±5V supply, LT1358IS8#TRPBF delivers ±3V minimum output swing into a 150Ω load, corresponding to ≥20mA continuous output current per amplifier. Short-circuit current is rated at ≥25mA, and the device supports indefinite short-circuit duration with appropriate thermal management per its θJA = 190°C/W SO-8 package rating.
How does the input bias current polarity behave in LT1358IS8#TRPBF?
LT1358IS8#TRPBF uses complementary NPN/PNP input transistors for first-order bias current cancellation. Due to beta mismatch, the net input bias current can be positive or negative - ranging from 120nA to 500nA at ±15V - but input offset current remains tightly controlled (≤120nA). For best DC accuracy, use matched source impedances on both inputs.
Is LT1358IS8#TRPBF pin-compatible with other dual op-amps in SO-8 packages?
LT1358IS8#TRPBF follows the industry-standard SO-8 dual op-amp pinout (Pin 1: –IN A, Pin 2: +IN A, Pin 3: V+, Pin 4: V–, Pin 5: +IN B, Pin 6: –IN B, Pin 7: OUT B, Pin 8: OUT A), matching devices like OP27, AD822, and LT1492 - enabling drop-in replacement in existing layouts where bandwidth, noise, and supply current requirements align.
LT1358IS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- 25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 120 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 2mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1358IS8#TRPBF FAQ
1.How can I place an order for LT1358IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1358IS8#TRPBF 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 LT1358IS8#TRPBF reliable?
The price and inventory of LT1358IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1358IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1358IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1358IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1358IS8#TRPBF?
LT1358IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1358IS8#TRPBF 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 LT1358IS8#TRPBF?
For technical support, including LT1358IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1358IS8#TRPBF requirements.
6.How does Aetrix verify that LT1358IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1358IS8#TRPBF 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 LT1358IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1358IS8#TRPBF?
All LT1358IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1358IS8#TRPBF, 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 LT1358IS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1358IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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