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Analog Devices Inc. LT1466LCS8#PBF
- Part No.:
- LT1466LCS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1466LCS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:459
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Product details
Overview
LT1466LCS8#PBF from Analog Devices (formerly Linear Technology) is a dual precision rail-to-rail input and output operational amplifier optimized for micropower, low-voltage, and high-accuracy signal conditioning. It delivers 75µA max supply current per amplifier, 390µV max input offset voltage across full rail-to-rail common-mode range, and 120kHz gain bandwidth product - enabling use in battery-powered sensor front-ends and precision A/D driver circuits.
For engineers reviewing the LT1466LCS8#PBF datasheet, LT1466LCS8#PBF pinout, LT1466LCS8#PBF application, or LT1466LCS8#PBF equivalent, key selection criteria include guaranteed VOS over full VCM range, 83dB min CMRR, rail-to-rail output swing within 27mV of rails at 2.5mA, and SO-8 package compatibility with standard dual op amp layouts.
Technical Context
The LT1466LCS8#PBF employs a patented dual-input-stage architecture: a PNP pair active near V– and an NPN pair active near V+, both independently trimmed for offset. This enables consistent 390µV max VOS across VCM = V– to V+, unlike conventional rail-to-rail op amps specified only at mid-supply.
Its complementary bipolar output stage (Q12/Q13) delivers true rail-to-rail swing with 235mV max VOL at 2.5mA sink and V+ – 0.57V max VOH at 2.5mA source. Gain-bandwidth is stabilized by internal capacitor CC, yielding 120kHz GBW and 0.04V/µs slew rate under ±5V or single 3V–5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 75µA max per amplifier - enables multi-year operation on coin cells in portable instrumentation. |
| Input Offset Voltage | 390µV max across full VCM range (V– to V+) - eliminates calibration drift when sensing near supply rails. |
| Common-Mode Rejection | 83dB min - ensures stable DC accuracy in noisy industrial sensor interfaces. |
| Output Swing | VOL ≤ 270mV at 2.5mA sink; VOH ≥ V+ – 0.57V at 2.5mA source - drives ADC inputs to full-scale without headroom loss. |
| Gain Bandwidth Product | 120kHz - supports anti-aliasing filtering and low-frequency transducer signal conditioning. |
| Input Bias Current | 6nA typ - preserves accuracy in high-impedance pH or photodiode front-ends. |
| Large-Signal Voltage Gain | 400V/mV min into 10kΩ - guarantees <0.025% gain error in closed-loop configurations. |
Pinout & Package
LT1466LCS8#PBF is housed in an 8-lead plastic SOIC (SO-8, narrow 0.150") package with standard dual op amp pinout and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - directly interfaces with ADC input or next-stage buffer. |
| 2 | –IN A | Inverting input of Amplifier A - connects to feedback network or sensor signal path. |
| 3 | +IN A | Non-inverting input of Amplifier A - accepts reference, sensor, or signal source with rail-to-rail common-mode support. |
| 4 | V– | Negative supply rail - supports single-supply (ground-referenced) or split-supply (±2.5V) operation. |
| 5 | +IN B | Non-inverting input of Amplifier B - independent channel for differential pair or dual-sensor conditioning. |
| 6 | –IN B | Inverting input of Amplifier B - configured for unity-gain buffer, integrator, or transimpedance stage. |
| 7 | OUT B | Inverting amplifier output - provides second analog channel without additional IC footprint. |
| 8 | V+ | Positive supply rail - operates from 2V to ±5V; enables 3V logic-compatible designs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with VCM and VOUT within 10mV of V– or V+ - eliminates external level-shifting in low-voltage systems. |
| Dual-trimmed input stages | Independent VOS trimming at V– and V+ - achieves 83dB CMRR, outperforming single-stage rail-to-rail op amps by >20dB. |
| Guaranteed VOS over full VCM | 390µV max at both VCM = V– and VCM = V+ - ensures predictable offset in supply-current sensing across entire battery discharge curve. |
| Low-noise bipolar process | 45nV/√Hz input voltage noise at 1kHz - maintains SNR in precision thermocouple or strain gauge amplifiers. |
| Stable capacitive load drive | Supports ≥1000pF loads without oscillation - simplifies anti-aliasing filter integration at ADC inputs. |
Applications
| Supply Current Sensing | Driving A/D Converters |
|---|---|
Use Scenario: Monitoring battery discharge current in portable medical devices using a 50mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision current-sense amplifier with rail-to-rail input to capture near-zero and near-rail voltages across shunt. Use Value: 390µV max VOS ensures <1% error at 10mA sense current; 75µA supply current minimizes burden on monitored system. | Use Scenario: Buffering and level-shifting sensor outputs to match 0–2.5V input range of 12-bit SAR ADCs. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full-scale utilization without clipping or external biasing. Use Value: VOL ≤ 270mV and VOH ≥ V+ – 0.57V at 2.5mA enable direct connection to ADC inputs while preserving dynamic range. |
| Test Equipment Amplifiers | Low-Power Sensor Signal Conditioning |
Use Scenario: DC-coupled gain stage in handheld multimeters requiring sub-microvolt offset stability. IC Role / Device Role / Timing Role: High-CMRR, low-drift amplifier for accurate voltage measurement across varying common-mode conditions. Use Value: 83dB min CMRR and 2µV/°C VOS drift maintain calibration integrity during ambient temperature shifts. | Use Scenario: Amplifying microvolt-level signals from thermopiles or piezoresistive pressure sensors in IoT nodes. IC Role / Device Role / Timing Role: Micropower front-end amplifier with rail-to-rail input to accommodate wide sensor output ranges. Use Value: 6nA typ IB prevents loading of high-Z sensor elements; 45nV/√Hz noise preserves signal fidelity at low gains. |
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 |
|---|---|---|---|
| LT1366CS8#PBF | Higher 520µA supply current; 475µV VOS only specified at VCM = V+/2; 400kHz GBW. | Better for higher-speed, AC-coupled applications where micropower is secondary. | Select LT1466LCS8#PBF when full-rail VOS guarantee and 75µA operation are mandatory; choose LT1366CS8#PBF if bandwidth >120kHz is required. |
| LTC1450CS8#PBF | Zero-drift architecture; 10µV VOS max; 3mA supply current; 700kHz GBW. | Superior DC accuracy for ultra-low-drift applications, but incompatible with strict micropower budgets. | Choose LTC1450CS8#PBF for µV-level precision in lab equipment; retain LT1466LCS8#PBF for battery life-critical portable designs. |
Compared with LT1366CS8#PBF and LTC1450CS8#PBF, the LT1466LCS8#PBF uniquely balances micropower (75µA), full-rail VOS guarantee (390µV), and adequate bandwidth (120kHz) - making it optimal for long-life, low-voltage sensor interfaces where zero-drift isn't required but rail-to-rail fidelity is non-negotiable.
Availability
LT1466LCS8#PBF is available at Aetrix Electronics and suitable for supply current sensing, A/D converter driving, test equipment amplification, and low-power sensor signal conditioning requiring stable component supply across industrial, medical, and portable electronics programs.
Supply support for LT1466LCS8#PBF 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 of high-performance analog ICs. The company specializes in precision signal conditioning, power management, and data conversion solutions for demanding applications.
The LT1466LCS8#PBF belongs to Linear's micropower precision op amp family, designed specifically for battery-operated instrumentation, portable medical devices, and industrial sensor interfaces where rail-to-rail operation and guaranteed DC accuracy across supply rails are essential.
FAQ
What is the maximum supply voltage rating for the LT1466LCS8#PBF?
The LT1466LCS8#PBF has an absolute maximum supply voltage rating of ±8V. Operation is specified across a wide range of 2V to ±5V, supporting both single-supply (e.g., 3V or 5V) and split-supply (e.g., ±2.5V) configurations. Exceeding ±8V risks permanent damage to the LT1466LCS8#PBF.
Does the LT1466LCS8#PBF support rail-to-rail input at the negative supply rail?
Yes, the LT1466LCS8#PBF guarantees 390µV maximum input offset voltage at VCM = V–, confirming true rail-to-rail input capability down to the negative rail. This is achieved via independent trimming of the PNP input stage and is explicitly verified in the datasheet's electrical characteristics table - a key differentiator of the LT1466LCS8#PBF versus generic rail-to-rail op amps.
What is the typical output voltage swing of the LT1466LCS8#PBF at 2.5mA load current?
At 2.5mA sink current, the LT1466LCS8#PBF delivers a typical output voltage swing of V– + 0.47V (max 0.54V); at 2.5mA source current, it delivers V+ – 0.31V (min V+ – 0.62V). These values ensure usable headroom for driving 10-bit+ ADCs directly from the LT1466LCS8#PBF without external level-shifting circuitry.
Can the LT1466LCS8#PBF drive capacitive loads without instability?
Yes, the LT1466LCS8#PBF is characterized to drive ≥1000pF capacitive loads without oscillation, as confirmed in the "Capacitive Load Handling" plot (G17) of its datasheet. This allows direct connection to ADC input capacitors or RC anti-aliasing filters without requiring isolation resistors - a verified behavior of the LT1466LCS8#PBF under standard operating conditions.
Is the LT1466LCS8#PBF pin-compatible with standard dual op amp footprints?
Yes, the LT1466LCS8#PBF uses the industry-standard 8-lead SOIC (SO-8, narrow 0.150") package with conventional dual op amp pinout (OUT A, –IN A, +IN A, V–, +IN B, –IN B, OUT B, V+). It is mechanically and electrically compatible with PCB footprints designed for LM358, AD8602, or other dual SO-8 op amps - no layout changes are needed when substituting the LT1466LCS8#PBF.
LT1466LCS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.04V/µs
- Gain Bandwidth Product:
- 120 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 nA
- Voltage - Input Offset:
- 110 µV
- Current - Supply:
- 60µA (x2 Channels)
- Current - Output / Channel:
- 18 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1466LCS8#PBF FAQ
1.How can I place an order for LT1466LCS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1466LCS8#PBF 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 LT1466LCS8#PBF reliable?
The price and inventory of LT1466LCS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1466LCS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1466LCS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1466LCS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1466LCS8#PBF?
LT1466LCS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1466LCS8#PBF 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 LT1466LCS8#PBF?
For technical support, including LT1466LCS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1466LCS8#PBF requirements.
6.How does Aetrix verify that LT1466LCS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1466LCS8#PBF 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 LT1466LCS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1466LCS8#PBF?
All LT1466LCS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1466LCS8#PBF, 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 LT1466LCS8#PBF part is unused and in its original packaging.
Return procedure for LT1466LCS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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