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Analog Devices Inc. LT1366CS8#TRPBF
- Part No.:
- LT1366CS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1366CS8#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,392
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Product details
Overview
LT1366CS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual precision rail-to-rail input and output operational amplifier in an 8-lead SOIC package. It operates from 1.8V to ±15V supplies, delivers 30mA output drive, maintains 90dB CMRR across full rail-to-rail input range, and achieves 400kHz gain-bandwidth with 0.13V/µs slew rate - enabling high-fidelity signal conditioning in low-voltage sensor interfaces and supply current sensing circuits.
For engineers reviewing the LT1366CS8#TRPBF datasheet, LT1366CS8#TRPBF pinout, LT1366CS8#TRPBF application, or LT1366CS8#TRPBF equivalent, this page provides verified specifications, validated pin functions, confirmed dual-op-amp rail-to-rail performance data, and real-world use cases for precision analog front-ends in industrial monitoring and data acquisition systems.
Technical Context
The LT1366CS8#TRPBF employs a dual-input-stage architecture: PNP and NPN differential pairs that auto-switch based on common-mode voltage, enabling true rail-to-rail input operation without clamps. Its complementary bipolar process ensures matched output transistor characteristics for symmetrical rail-to-rail swing.
Conventional internal compensation guarantees stability with capacitive loads ≤1000pF, eliminating need for external compensation components. This distinguishes it from the LT1368/LT1369 variants, which require a 0.1µF output capacitor for enhanced PSRR and high-frequency output impedance reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.8V to ±15V - supports single-supply 3.3V/5V and dual-supply ±15V systems without level-shifting. |
| Input Offset Voltage | Typ. 150µV (25°C), max 475µV - enables µV-level DC accuracy in precision instrumentation amplifiers. |
| CMRR | Typ. 90dB over full rail-to-rail input - rejects supply noise and common-mode interference in noisy industrial environments. |
| Output Drive | ±30mA - directly drives 10kΩ loads and A/D converter reference buffers without external gain stages. |
| Gain-Bandwidth | 400kHz - sufficient for anti-aliasing filters, sensor signal conditioning, and closed-loop control up to ~40kHz. |
| Slew Rate | 0.13V/µs - supports clean 10VP-P signals at ≤13kHz without distortion in unity-gain configurations. |
| Supply Current | 375µA per amplifier - enables low-power battery-operated designs while maintaining precision performance. |
Pinout & Package
LT1366CS8#TRPBF is housed in an 8-lead plastic SO (S8) package with standard dual op-amp pinout and JEDEC MS-012AC footprint (5.0mm × 6.2mm, 1.27mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail output swing; capable of sourcing/sinking 30mA into resistive or capacitive loads ≤1000pF. |
| 2 (–IN A) | Inverting input A | Differential node for A amplifier; accepts common-mode voltages from V– to V+ with <150µV offset. |
| 3 (+IN A) | Non-inverting input A | Differential node for A amplifier; supports rail-to-rail input with no external clamping required. |
| 4 (V–) | Negative supply rail | Reference for internal biasing; connects to ground (single-supply) or negative rail (dual-supply). |
| 5 (+IN B) | Non-inverting input B | Differential node for B amplifier; electrically isolated from A channel with >120dB channel separation. |
| 6 (–IN B) | Inverting input B | Differential node for B amplifier; shares same precision specs as Pin 2 but independent signal path. |
| 7 (OUT B) | Amplifier B output | Independent rail-to-rail output; matches Pin 1 performance for dual-channel applications like differential drivers. |
| 8 (V+) | Positive supply rail | Power input for both amplifiers; PSRR of 110dB minimizes supply ripple coupling into output. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3V/5V systems - no headroom loss at supply rails for sensor outputs or DAC buffers. |
| Low input bias current (10nA typ) | Preserves signal integrity in high-impedance pH, thermocouple, or photodiode front-ends without loading errors. |
| Stable with 1000pF capacitive load | Eliminates need for isolation resistors when driving ADC inputs, LCD bias networks, or long PCB traces. |
| High open-loop gain (1 million) | Ensures <0.001% gain error in 100× gain configurations with 10kΩ feedback networks. |
| Overdrive protection | Prevents phase reversal during input transients beyond rails - critical for robustness in motor control feedback paths. |
Applications
| Rail-to-Rail Buffer Amplifiers | Low Voltage Signal Processing |
|---|---|
Use Scenario: Buffering high-impedance outputs from MEMS sensors or precision DACs in portable medical devices operating from 3.3V batteries. IC Role / Device Role / Timing Role: Dual-channel unity-gain buffer isolating source impedance while preserving DC accuracy and bandwidth. Use Value: Delivers 0.01% THD+N at 10kHz and rail-to-rail swing - avoids clipping in 3.3V full-scale signal chains. | Use Scenario: Amplifying microvolt-level thermocouple outputs in industrial temperature controllers using 5V single-supply rails. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched input pairs and low VOS drift (2µV/°C). Use Value: Maintains 16-bit effective resolution by limiting offset drift contribution to <1 LSB over 0°C–70°C range. |
| Supply Current Sensing at Either Rail | Driving A/D Converters |
Use Scenario: Bidirectional current sensing in 12V automotive body control modules using shunt resistors connected to ground or battery rail. IC Role / Device Role / Timing Role: High-side and low-side current sense amplifier with rail-to-rail inputs referenced to either supply rail. Use Value: Achieves ±0.5% current measurement accuracy via 150µV VOS and 90dB CMRR - rejecting common-mode noise from switching regulators. | Use Scenario: Driving SAR ADC inputs (e.g., LTC23xx family) in data loggers requiring low-noise, fast-settling analog front-ends. IC Role / Device Role / Timing Role: Low-output-impedance driver with 30mA drive capability and 30µs settling time to 0.1%. Use Value: Reduces aperture uncertainty and code transition errors by delivering stable 4V step within 30µs before ADC sampling window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1368CS8#TRPBF | Requires 0.1µF output capacitor; higher PSRR (110dB vs 105dB at 50kHz); lower GBW (160kHz); slower slew rate (0.065V/µs). | Better suited for mixed-signal systems with noisy switching supplies; less suitable for wideband signal conditioning. | Select LT1368CS8#TRPBF only when high-frequency PSRR is prioritized over bandwidth and slew rate. |
| AD8628ARZ | Zero-drift architecture; 1µV max VOS; 2.5MHz GBW; 1V/µs slew rate; higher supply current (1.2mA); not rail-to-rail input. | Superior DC precision for µV-level measurements; incompatible with rail-to-rail input requirements. | Choose AD8628ARZ for ultra-low-offset applications where input range is limited to mid-supply, not full rail. |
Compared with LT1368CS8#TRPBF and AD8628ARZ, the LT1366CS8#TRPBF uniquely balances rail-to-rail input/output, 400kHz bandwidth, and sub-500µV VOS in a low-quiescent-current SOIC package - making it optimal for cost-sensitive, wide-dynamic-range analog front-ends where zero-drift isn't mandatory.
Availability
LT1366CS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery-powered medical monitors, and automotive current sensing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant lead-free packaging.
Supply support for LT1366CS8#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT1366 series belongs to Linear Technology's precision rail-to-rail op amp product line, designed specifically for applications demanding wide supply range, low offset, and full input/output voltage swing in space-constrained industrial and instrumentation systems.
FAQ
What is the maximum capacitive load the LT1366CS8#TRPBF can drive without oscillation?
The LT1366CS8#TRPBF is internally compensated for stable operation with capacitive loads up to 1000pF. This eliminates the need for external isolation resistors when driving ADC inputs, sample-and-hold circuits, or long PCB traces - unlike the LT1368/LT1369 variants which require a 0.1µF capacitor. Exceeding 1000pF may cause peaking or instability unless additional compensation is applied.
Does the LT1366CS8#TRPBF support true rail-to-rail input common-mode range?
Yes, the LT1366CS8#TRPBF supports a true rail-to-rail input common-mode range from V– to V+, enabled by its dual PNP/NPN input stage architecture. Unlike conventional op amps, it requires no external clamping diodes and maintains 90dB CMRR across the entire range - verified in Electrical Characteristics tables for VCM = VEE and VCM = VCC conditions.
What is the typical supply current per amplifier for LT1366CS8#TRPBF at 5V single supply?
The typical supply current per amplifier for LT1366CS8#TRPBF is 375µA at 5V single supply (VS = 5V, 0V) and 25°C, as specified in the Electrical Characteristics table under "IS Supply Current per Amplifier". This value increases to 520µA maximum across the 0°C to 70°C operating temperature range.
Can LT1366CS8#TRPBF be used as a direct replacement for LM358 in existing designs?
The LT1366CS8#TRPBF is pin-compatible with LM358 in the 8-lead SOIC package and offers superior performance: rail-to-rail I/O, 150µV vs 2mV VOS, 400kHz vs 1MHz GBW (but higher precision), and 30mA vs 20mA output drive. However, its higher cost and different compensation behavior mean validation is required - especially for capacitive loads >1000pF or where LM358's lower bandwidth is intentionally used for filtering.
What is the guaranteed input offset voltage specification for LT1366CS8#TRPBF over temperature?
The LT1366CS8#TRPBF guarantees a maximum input offset voltage of 575µV over the 0°C to 70°C operating temperature range, as stated in the "l"-denoted specifications table. This includes worst-case VOS at both VCM = VCC and VCM = VEE, with a typical drift of 2µV/°C - significantly tighter than standard bipolar op amps.
LT1366CS8#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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.13V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 370µA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1366CS8#TRPBF FAQ
1.How can I place an order for LT1366CS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1366CS8#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 LT1366CS8#TRPBF reliable?
The price and inventory of LT1366CS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1366CS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1366CS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1366CS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1366CS8#TRPBF?
LT1366CS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1366CS8#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 LT1366CS8#TRPBF?
For technical support, including LT1366CS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1366CS8#TRPBF requirements.
6.How does Aetrix verify that LT1366CS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1366CS8#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 LT1366CS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1366CS8#TRPBF?
All LT1366CS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1366CS8#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 LT1366CS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1366CS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1366CS8#TRPBF Tags
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LM358DT
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LM358DR
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM2902DR
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