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Analog Devices Inc. LT6220IS8#PBF
- Part No.:
- LT6220IS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6220IS8#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:257
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Product details
Overview
LT6220IS8#PBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail input and output precision operational amplifier optimized for low-voltage, high-speed signal conditioning. It delivers 60MHz gain-bandwidth product, 20V/µs slew rate, 1.1mA supply current, ±5V to 3V operation, and rail-to-rail output swing within 10mV of either supply rail - enabling full dynamic range in battery-powered data acquisition and sensor interface circuits.
For engineers reviewing the LT6220IS8#PBF datasheet, LT6220IS8#PBF pinout, LT6220IS8#PBF application, or LT6220IS8#PBF equivalent, key selection criteria include guaranteed –40°C to 85°C operation, 350µV max input offset voltage, 150nA max input bias current, and compatibility with 8-lead SO package layouts requiring minimal board space and standard op amp footprint.
Technical Context
The LT6220IS8#PBF employs a dual-input-stage architecture-PNP pair active near V– and NPN pair active near V+-enabling true rail-to-rail common-mode input range (0V to VS). Its output stage uses complementary emitter-follower topology to achieve rail-to-rail swing with 50mA typical output drive capability.
It features internal compensation for unity-gain stability, operates from 2.2V to 12.6V total supply, and maintains 102dB CMRR and 105dB PSRR across frequency-critical for precision DC-coupled amplification and high-fidelity analog front-ends in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 60MHz - supports stable closed-loop gain up to 10 at 6MHz or unity gain at 60MHz for wideband filtering and buffering. |
| Slew Rate | 20V/µs - enables clean 4VP-P output at 1MHz without slewing distortion in fast-settling applications. |
| Input Offset Voltage | 350µV max - ensures ≤0.7mV error in 2V full-scale 12-bit systems without trimming. |
| Supply Current | 1.1mA max (–40°C to 85°C) - allows integration into always-on sensor nodes with <1.5mW power budget at 3V. |
| Output Swing | Within 10mV of rails (no load) - maximizes usable signal headroom in 3.3V or ±2.5V systems. |
| Common-Mode Range | 0V to VS - accepts inputs at ground or supply rail, simplifying level-shifting in single-supply ADC drivers. |
| Operating Temp | –40°C to 85°C - qualified for industrial and automotive under-hood environments without derating. |
Pinout & Package
LT6220IS8#PBF is housed in an 8-lead plastic SO (Small Outline) package with standard op amp pinout and JEDEC MS-012AC footprint. Thermal resistance θJA = 190°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Amplifier output node; capable of sourcing/sinking ≥20mA while maintaining rail-to-rail swing. |
| 2 | VS– | Negative supply connection; internally tied to exposed pad in DFN variants (not applicable here). |
| 3 | +IN | Non-inverting input; PNP/NPN composite stage enables rail-to-rail common-mode range. |
| 4 | –IN | Inverting input; matched to +IN for <175µV offset voltage match in dual/quad variants. |
| 5 | NC | No connect - unused pin; must remain unconnected per datasheet layout guidance. |
| 6 | NC | No connect - unused pin; no internal connection; leave floating or grounded per PCB design rules. |
| 7 | VS+ | Positive supply connection; supports 2.2V to 12.6V total supply range. |
| 8 | NC | No connect - unused pin; electrically isolated; avoid routing signals nearby to prevent coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables direct interfacing with 0V-referenced sensors and 3.3V/5V ADCs without level-shifting circuitry. |
| Low input bias current (150nA max) | Minimizes voltage error across high-impedance sources like photodiode transimpedance networks. |
| High PSRR (105dB typ) | Rejects supply noise in noisy digital environments, preserving signal integrity in mixed-signal PCBs. |
| Wide supply range (2.2V–12.6V) | Supports direct operation from Li-ion batteries (2.7–4.2V), USB (5V), or split supplies (±5V). |
| Low voltage noise (10nV/√Hz) | Preserves SNR in low-level signal amplification stages before ADCs or instrumentation chains. |
Applications
| Driving A/D Converters | Rail-to-Rail Buffer Amplifiers |
|---|---|
Use Scenario: Driving SAR or sigma-delta ADC inputs with 0–3.3V or 0–5V full-scale ranges in portable data loggers. IC Role / Device Role / Timing Role: Precision unity-gain buffer with low THD and fast settling (<300ns to 0.01%) to prevent aperture uncertainty. Use Value: Eliminates need for external level-shifting; rail-to-rail swing ensures full ADC code utilization without clipping. | Use Scenario: Isolating high-impedance sensor outputs (e.g., thermocouples, strain gauges) from varying load conditions. IC Role / Device Role / Timing Role: Low-offset, low-bias-current voltage follower providing high input impedance (>1012Ω) and low output impedance (<1Ω). Use Value: Maintains signal fidelity across temperature; 1.1mA quiescent current extends battery life in wireless sensor nodes. |
| Active Filters | Fast Current Sensing Amplifiers |
Use Scenario: Implementing 2nd-order Sallen-Key or MFB low-pass filters in medical ECG front-ends operating at 3.3V. IC Role / Device Role / Timing Role: High-GBW, low-noise op amp configured as gain stage with precise pole placement. Use Value: 60MHz GBW enables filter cutoffs up to 10MHz with minimal phase shift; rail-to-rail I/O simplifies single-supply design. | Use Scenario: Amplifying mV-level shunt voltage drops in motor control inverters with 12-bit current resolution. IC Role / Device Role / Timing Role: High-speed, low-offset difference amplifier with fast transient response for PWM edge detection. Use Value: 20V/µs slew rate captures rapid current spikes during switching; 350µV offset ensures <0.1% gain error at 100mV full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA350UA | Lower 5.5MHz GBW, 3.5V/µs slew rate, 1.2mA supply current, same 8-SO package. | Better DC precision (25µV offset) but insufficient bandwidth for >1MHz signal paths. | Select when ultra-low offset dominates over speed; not suitable for video or fast-settling ADC drivers. |
| AD8605ARZ | 24MHz GBW, 5V/µs slew rate, 0.75mA supply current, 36µV offset, same 8-SO package. | Lower power and superior DC accuracy, but limited bandwidth restricts use in >5MHz applications. | Prefer for battery-powered instrumentation where speed <5MHz and offset <50µV are critical. |
Compared with OPA350UA and AD8605ARZ, the LT6220IS8#PBF uniquely balances 60MHz bandwidth, rail-to-rail I/O, and industrial temperature rating - making it the only option among the three qualified for high-speed, wide-temp, single-supply precision amplification without performance trade-offs.
Availability
LT6220IS8#PBF is available at Aetrix Electronics and suitable for industrial automation, portable medical devices, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6220IS8#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and DSP solutions for precision measurement and signal processing.
The LT6220 family was designed specifically for low-voltage, high-speed precision amplification - targeting applications demanding rail-to-rail operation, low power, and robust AC/DC performance in harsh environments.
FAQ
What is the maximum supply voltage for LT6220IS8#PBF?
The absolute maximum total supply voltage (VS+ to VS–) for LT6220IS8#PBF is 12.6V. Operation beyond this risks permanent damage. The device is fully specified from 2.2V to 12.6V, with guaranteed performance at 3V, 5V, and ±5V supplies - making LT6220IS8#PBF suitable for both single-ended and split-supply designs without derating.
Does LT6220IS8#PBF support rail-to-rail input with inputs driven beyond the supply rails?
Yes, LT6220IS8#PBF features rail-to-rail input common-mode range (0V to VS) and can tolerate input voltages beyond the supply rails without damage or phase reversal, thanks to internal back-to-back diode protection. However, differential input voltage must be limited to <1.4V, and input current must stay below ±10mA per Absolute Maximum Ratings - a key reliability feature confirmed in LT6220IS8#PBF's datasheet.
What is the typical output drive capability of LT6220IS8#PBF?
LT6220IS8#PBF delivers 50mA typical output current into resistive loads, with guaranteed minimum short-circuit current of 12.5mA at –40°C to 85°C. Its rail-to-rail output swings within 10mV of either supply rail under no load and sustains ≥20mA sink/source while staying within 325mV of the rails - enabling direct driving of 50Ω cables or multiple logic inputs without external buffers.
Is LT6220IS8#PBF pin-compatible with other op amps in SO-8 packages?
LT6220IS8#PBF uses the industry-standard SO-8 op amp pinout (pin 1 = VOUT, pin 2 = VS–, pin 3 = +IN, pin 4 = –IN, pins 5–6 = NC, pin 7 = VS+, pin 8 = NC), matching legacy devices like OP27 and AD822. However, functional compatibility requires verification of bandwidth, offset, and supply range - LT6220IS8#PBF is not a drop-in replacement for op amps lacking rail-to-rail I/O or 60MHz GBW.
What is the input noise performance of LT6220IS8#PBF?
LT6220IS8#PBF exhibits 10nV/√Hz input voltage noise density at 10kHz and 0.5µVP-P integrated noise from 0.1Hz to 10Hz. Its 0.8pA/√Hz input current noise supports high-source-impedance applications. This noise profile - verified across temperature and supply conditions - makes LT6220IS8#PBF appropriate for low-noise preamplification stages where signal integrity is critical.
LT6220IS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 60 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 nA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6220IS8#PBF FAQ
1.How can I place an order for LT6220IS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6220IS8#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 LT6220IS8#PBF reliable?
The price and inventory of LT6220IS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6220IS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6220IS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6220IS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6220IS8#PBF?
LT6220IS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6220IS8#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 LT6220IS8#PBF?
For technical support, including LT6220IS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6220IS8#PBF requirements.
6.How does Aetrix verify that LT6220IS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6220IS8#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 LT6220IS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6220IS8#PBF?
All LT6220IS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6220IS8#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 LT6220IS8#PBF part is unused and in its original packaging.
Return procedure for LT6220IS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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