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Analog Devices Inc. LT1352IS8#TRPBF
- Part No.:
- LT1352IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1352IS8#TRPBF.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,924
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Product details
Overview
LT1352IS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, high-speed, low-power operational amplifier in an 8-lead SOIC package. It delivers 3MHz gain bandwidth, 200V/µs slew rate, and 250µA supply current per amplifier at ±15V, enabling precision wideband amplification in battery-powered instrumentation and photodiode preamplifiers.
For engineers reviewing the LT1352IS8#TRPBF datasheet, LT1352IS8#TRPBF pinout, LT1352IS8#TRPBF application, or LT1352IS8#TRPBF equivalent, key selection criteria include guaranteed –40°C to +85°C operation, C-Load™ stability with all capacitive loads, unity-gain stability, and input offset voltage ≤1.0mV over temperature.
Technical Context
The LT1352IS8#TRPBF employs a proprietary voltage-feedback topology with current-feedback slewing behavior, using complementary NPN/PNP emitter followers to drive a 1kΩ input resistor. Its high-impedance gain node and bootstrapped RC/CC compensation network ensure unconditional stability with any capacitive load while maintaining phase margin >30° across temperature and supply voltage.
Each amplifier features matched high-impedance inputs (RIN = 300–600MΩ differential), low input bias current (≤100nA at –40°C to +85°C), and rail-to-rail output swing capability-±13.3V into 5kΩ at ±15V supplies and ±3.3V into 500Ω at ±5V-enabling direct interfacing with ADCs and DACs without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.0MHz at ±15V (ensures stable 100kHz closed-loop operation with ≥30° phase margin) |
| Slew Rate | 200V/µs at ±15V (supports full-swing 10V step in <700ns to 0.1% accuracy) |
| Supply Current per Amp | 380µA max at –40°C to +85°C (enables dual-channel operation from coin-cell batteries) |
| Input Offset Voltage | 1.0mV max at –40°C to +85°C (guarantees <0.5LSB error in 12-bit DAC I-to-V applications) |
| Output Swing | ±10.0V min into 1kΩ at ±15V (drives 10Vpp signals directly into 1kΩ data acquisition front-ends) |
| Input Noise Voltage | 14nV/√Hz at 10kHz (preserves SNR in photodiode preamp designs with 100kΩ transimpedance) |
| Common-Mode Rejection | 76dB min at ±12V input common-mode (rejects power-supply ripple in single-supply sensor interfaces) |
Pinout & Package
LT1352IS8#TRPBF is housed in an 8-lead plastic SOIC (SO-8) package with standard narrow-body dimensions (5.0mm × 4.0mm × 1.5mm), JEDEC MS-012AC compliant, and rated for 150°C maximum junction temperature (θJA = 190°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Capable of ±13.3V swing into 5kΩ; drives capacitive loads without external compensation |
| 2 (–IN A) | Inverting input A | Differential input voltage rating ±10V transient; supports balanced source impedance for DC accuracy |
| 3 (+IN A) | Non-inverting input A | Base of complementary NPN/PNP pair; enables first-order bias current cancellation |
| 4 (V–) | Negative supply rail | Accepts –2.5V to –15V; must be bypassed with 0.01–0.1µF RF capacitor for 0.01% settling |
| 5 (V+) | Positive supply rail | Accepts +2.5V to +15V; requires low-ESR 1–10µF tantalum for high-current drive stability |
| 6 (–IN B) | Inverting input B | Electrically isolated from Channel A; channel separation ≥99dB at 10V output |
| 7 (+IN B) | Non-inverting input B | Identical input structure to Pin 3; enables dual-channel instrumentation amplifier configurations |
| 8 (OUT B) | Amplifier B output | Functionally identical to Pin 1; supports independent loading and feedback networks |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ stability | Operates unconditionally stable with any capacitive load (0–10,000pF), eliminating need for isolation resistors in filter or cable-drive applications |
| Unity-gain stability | Guaranteed stable at AV = 1 without external compensation, enabling buffer and active filter configurations without risk of oscillation |
| Wide supply range | Specified from ±2.5V to ±15V, supporting both low-voltage portable systems and industrial ±12V signal chains |
| Low input bias current | ≤100nA max over –40°C to +85°C, minimizing voltage error in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes) |
| High slew rate / bandwidth ratio | 200V/µs slew rate with only 3MHz GBW enables fast large-signal response without excessive power consumption |
Applications
| Battery-Powered Instrumentation | Photodiode Preamplification |
|---|---|
Use Scenario: Portable gas analyzers requiring low-power, high-precision analog front-end for electrochemical sensors. IC Role / Device Role / Timing Role: Dual-channel op amp providing low-noise transimpedance gain and reference buffering. Use Value: 250µA per amplifier enables >100-hour operation from CR2032; 14nV/√Hz noise preserves ppm-level detection resolution. | Use Scenario: UV flame detection system using BPV22NF photodiode with 400kHz bandwidth requirement. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier with 10kHz high-pass loop filtering. Use Value: 200V/µs slew rate ensures <700ns settling for pulsed UV signals; C-Load™ stability eliminates tuning of feedback capacitor. |
| Active Filter Design | Data Acquisition Front-End |
Use Scenario: 20kHz 4th-order Butterworth anti-aliasing filter in medical ECG monitor. IC Role / Device Role / Timing Role: Dual op amp implementing biquad sections with precise pole placement. Use Value: Guaranteed 3MHz GBW and 76dB CMRR maintain filter stopband attenuation >60dB at 100kHz despite supply ripple. | Use Scenario: Industrial PLC analog input module digitizing ±10V sensor signals at 100kSPS. IC Role / Device Role / Timing Role: Signal conditioner driving SAR ADC with ±10V full-scale range. Use Value: ±10.0V min output swing into 1kΩ ensures full utilization of 16-bit ADC dynamic range without gain error. |
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 |
|---|---|---|---|
| LT1352CS8#TRPBF | Same silicon, commercial-grade (0°C to 70°C) temperature range; lower cost; not specified for –40°C operation | Not suitable for automotive or outdoor industrial deployments requiring extended temperature qualification | Select LT1352CS8#TRPBF only for cost-sensitive consumer electronics with ambient temperature control. |
| OPA2350UA | Rail-to-rail input/output; higher 38MHz GBW but 4.9mA supply current; no C-Load™ guarantee | Requires external compensation for >100pF loads; unsuitable for direct cable-drive or unbuffered filter applications | Choose OPA2350UA when rail-to-rail I/O and higher bandwidth outweigh power and stability requirements. |
Compared with LT1352CS8#TRPBF, the LT1352IS8#TRPBF provides guaranteed –40°C to +85°C performance critical for field-deployed equipment, while OPA2350UA trades ultra-low power for significantly higher speed and rail-to-rail operation-but sacrifices unconditional capacitive-load stability essential in robust industrial designs.
Availability
LT1352IS8#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, photodiode preamplification, and active filter design requiring stable component supply across extended temperature ranges.
Supply support for LT1352IS8#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 its legacy high-performance analog portfolio with rigorous process control and application-focused validation.
The LT1352IS8#TRPBF belongs to Linear's C-Load™ op amp family, engineered for wideband precision amplification in space-constrained, low-power systems where stability with real-world capacitive loads is non-negotiable.
FAQ
What is the maximum operating temperature range for the LT1352IS8#TRPBF?
The LT1352IS8#TRPBF is guaranteed to operate from –40°C to +85°C. This industrial temperature range is explicitly validated per datasheet Note 7, distinguishing it from the commercial-grade LT1352CS8#TRPBF (0°C to 70°C). Thermal derating must follow θJA = 190°C/W for the SO-8 package.
Does the LT1352IS8#TRPBF require external compensation for capacitive loads?
No, the LT1352IS8#TRPBF does not require external compensation for any capacitive load. Its patented C-Load™ architecture provides unconditional stability up to 10,000pF, as verified in Figure 30 of the datasheet. This eliminates series isolation resistors in cable-drive and active-filter applications.
What is the typical input offset voltage drift of the LT1352IS8#TRPBF over temperature?
The LT1352IS8#TRPBF has a typical input offset voltage drift of 3–8 µV/°C, as specified in the Electrical Characteristics table under "Input VOS Drift" (Note 6). This low drift ensures minimal baseline shift in precision DC-coupled sensor interfaces across the full –40°C to +85°C range.
Can the LT1352IS8#TRPBF drive a 500Ω load effectively?
Yes, the LT1352IS8#TRPBF can drive a 500Ω load: at ±5V supplies, it delivers ±3.3V minimum output swing into 500Ω (per –40°C to +85°C specs), supporting 6.6mA output current. For sustained 500Ω loading, use low-ESR 1–10µF tantalum bypass capacitors on V+ and V– rails.
Is the LT1352IS8#TRPBF unity-gain stable?
Yes, the LT1352IS8#TRPBF is unity-gain stable. The datasheet explicitly states "Unity-Gain Stable" in the FEATURES section and confirms stability at AV = 1 in the Applications Information section, including transient response plots (Figures G31–G33) with no peaking or ringing.
LT1352IS8#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:
- 200V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 250µA (x2 Channels)
- Current - Output / Channel:
- 14 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
LT1352IS8#TRPBF FAQ
1.How can I place an order for LT1352IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1352IS8#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 LT1352IS8#TRPBF reliable?
The price and inventory of LT1352IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1352IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1352IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1352IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1352IS8#TRPBF?
LT1352IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1352IS8#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 LT1352IS8#TRPBF?
For technical support, including LT1352IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1352IS8#TRPBF requirements.
6.How does Aetrix verify that LT1352IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1352IS8#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 LT1352IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1352IS8#TRPBF?
All LT1352IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1352IS8#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 LT1352IS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1352IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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