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Analog Devices Inc. LT6220IS8#TRPBF
- Part No.:
- LT6220IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6220IS8#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,692
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Product details
Overview
LT6220IS8#TRPBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail input and output precision operational amplifier optimized for low-power, high-speed signal conditioning in 3V–5V systems. It delivers 60MHz gain-bandwidth product, 20V/µs slew rate, 1.1mA supply current, <350µV input offset voltage, and rail-to-rail output swing within 10mV of either supply - enabling full dynamic range utilization in battery-powered data acquisition and sensor interface circuits.
For engineers reviewing the LT6220IS8#TRPBF datasheet, LT6220IS8#TRPBF pinout, LT6220IS8#TRPBF application, or LT6220IS8#TRPBF equivalent, key selection criteria include guaranteed –40°C to 85°C operation, SO-8 package with standard op amp pinout, low 10nV/√Hz input voltage noise, and compatibility with driving SAR ADC inputs, active filters, and rail-to-rail buffer stages without external level-shifting.
Technical Context
The LT6220IS8#TRPBF employs a dual-input-stage architecture (PNP + NPN differential pairs) that enables true rail-to-rail common-mode input range (0V to VS) across its full operating temperature range. Its output stage uses complementary Class AB topology to achieve 50mA typical output current while maintaining 102dB CMRR and 105dB PSRR at DC.
It operates from 2.2V to 12.6V total supply voltage (±1.1V to ±6.3V), supports input overvoltage beyond rails without phase reversal, and features internal ESD protection diodes on both inputs. The device is characterized at 3V, 5V, and ±5V supplies with performance validated under load conditions up to 20mA sink/source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 60MHz - supports stable unity-gain buffers and closed-loop amplifiers up to ~5MHz with 45° phase margin into 1kΩ//100pF loads. |
| Slew Rate | 20V/µs - enables clean 4VP-P output at 1MHz without slewing distortion in AV = –1 configurations. |
| Input Offset Voltage | 350µV max (–40°C to 85°C) - ensures ≤0.7mV error in 2V full-scale 12-bit systems without trimming. |
| Supply Current per Amplifier | 1.5mA max (–40°C to 85°C) - allows integration into always-on sensor front-ends with sub-2mW power budget at 3V. |
| Output Voltage Swing | Within 10mV of rails (no load); 325mV low / 475mV high at 20mA - preserves >95% of 3V supply headroom for 12-bit ADC drivers. |
| Input Voltage Noise Density | 10nV/√Hz at 10kHz - contributes <1.2µVRMS integrated noise in 10kHz bandwidth, suitable for µV-level transducer signals. |
| Common-Mode Rejection | 102dB typical - rejects >100,000:1 of supply-coupled interference in single-supply instrumentation amplifiers. |
Pinout & Package
LT6220IS8#TRPBF is housed in an 8-lead plastic SO (Small Outline) package with JEDEC MS-012AC footprint and standard op amp pinout. Thermal resistance θJA = 190°C/W with minimal PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Amplifier output | Capable of sourcing/sinking ≥20mA; rail-to-rail swing enables direct interface to low-voltage ADC references. |
| 2 - –IN | Inverting input | Differential node with 2pF input capacitance; accepts common-mode voltages from VS– to VS+ without damage or phase reversal. |
| 3 - +IN | Non-inverting input | Matches –IN in bias current (<150nA max) and offset voltage; critical for precision difference amplifiers. |
| 4 - VS– | Negative supply | Internally tied to exposed substrate; must be connected to lowest system potential (GND or negative rail). |
| 5 - NC | No connect | Not internally bonded; left unconnected per datasheet - no routing or grounding required. |
| 6 - VS+ | Positive supply | Accepts 2.2V–12.6V total supply; PSRR >104dB minimizes supply ripple coupling into output. |
| 7 - NC | No connect | Not internally bonded; electrically isolated - no thermal or electrical function. |
| 8 - NC | No connect | Not internally bonded; mechanical pad only - no circuit role or layout constraint. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3V/5V supplies in single-ended configurations without level-shifting components. |
| Low 10nV/√Hz input voltage noise | Preserves SNR in low-amplitude sensor interfaces (e.g., thermopiles, strain gauges) without requiring external filtering. |
| 60MHz GBW with 1.5mA supply current | Delivers 40× higher speed-per-mA than legacy precision op amps (e.g., OP177), reducing power in high-bandwidth stages. |
| Guaranteed –40°C to 85°C operation | Validated performance across industrial temperature range eliminates derating concerns in outdoor or enclosed environments. |
| Input overvoltage tolerance | Withstands differential input voltages >1.4V and common-mode excursions beyond rails without latch-up or phase reversal. |
Applications
| ADC Driver Circuit | Rail-to-Rail Sensor Buffer |
|---|---|
|
Use Scenario: Driving the input of a 12-bit SAR ADC (e.g., LTC2315-12) from a 3V single supply with 0–3V input range. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating high-impedance source from ADC sampling capacitor; settles to 0.01% in 300ns. Use Value: Eliminates external reference buffering and reduces THD to –77.5dBc at 500kHz, preserving effective resolution. |
Use Scenario: Conditioning output of a 0–100mV bridge-based pressure sensor in a portable medical device. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail instrumentation amplifier front-end with gain = 30, powered from 3.3V coin cell. Use Value: Delivers 16-bit-equivalent ENOB by contributing only 1.2µVRMS noise in 10kHz bandwidth and consuming <1.5mW. |
| Active Low-Pass Filter | Video Signal Amplifier |
|
Use Scenario: 2nd-order Sallen-Key anti-aliasing filter preceding a 1MSPS data logger with 3V supply. IC Role / Device Role / Timing Role: Dual-function op amp implementing filter transfer function and providing drive strength for 100Ω trace impedance. Use Value: Maintains flat group delay and <0.3% differential gain/phase error up to 500kHz, meeting NTSC video fidelity requirements. |
Use Scenario: DC-coupled RGB line driver in a 720p embedded display subsystem operating from 5V. IC Role / Device Role / Timing Role: High-slew-rate, low-distortion buffer delivering 2VP-P video signals into 75Ω coaxial cable. Use Value: Achieves –77.5dBc harmonic distortion at 500kHz and settles within 375ns, supporting pixel clock rates up to 75MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDR | Lower quiescent current (17µA vs 1.5mA), but only 350kHz GBW and 0.16V/µs slew rate; rail-to-rail input only (not output). | Better for ultra-low-power wake-up sensors; unsuitable for >100kHz signal paths or ADC drivers requiring rail-to-rail output swing. | Select OPA333AIDR only when power budget is <50µW and bandwidth <500kHz; avoid for LT6220IS8#TRPBF's high-speed roles. |
| AD8605ARZ | Higher precision (65µV VOS max), same 10nV/√Hz noise, but 10MHz GBW and 5V/µs slew rate; rail-to-rail I/O. | Preferred for DC-critical applications like precision references; cannot replace LT6220IS8#TRPBF in >1MHz closed-loop gain stages. | Choose AD8605ARZ for sub-100kHz precision instrumentation; retain LT6220IS8#TRPBF where >5MHz bandwidth or >10V/µs slew is mandatory. |
Compared with OPA333AIDR and AD8605ARZ, the LT6220IS8#TRPBF uniquely balances 60MHz bandwidth, rail-to-rail I/O, and sub-2mW power in a standard SO-8 package - making it irreplaceable in cost-sensitive, medium-speed data acquisition where both speed and precision are required.
Availability
LT6220IS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and test equipment requiring stable component supply with guaranteed –40°C to 85°C performance and RoHS-compliant packaging.
Supply support for LT6220IS8#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, serving industrial, automotive, communications, and healthcare markets.
The LT6220IS8#TRPBF belongs to Linear's precision high-speed op amp family, designed specifically for applications demanding rail-to-rail operation, low noise, and wide supply range in space-constrained industrial and portable systems.
FAQ
What is the maximum supply voltage rating for the LT6220IS8#TRPBF?
The LT6220IS8#TRPBF has an absolute maximum total supply voltage (VS+ to VS–) of 12.6V. Operation is specified from 2.2V to 12.6V, with full performance guaranteed at 3V, 5V, and ±5V supplies. Exceeding 12.6V risks permanent damage per Absolute Maximum Ratings.
Does the LT6220IS8#TRPBF support rail-to-rail output swing at 20mA load current?
Yes - the LT6220IS8#TRPBF delivers rail-to-rail output swing within 325mV of VS– and 475mV of VS+ when sinking or sourcing 20mA, respectively, at 5V supply. This is documented in the Electrical Characteristics table under VOL and VOH parameters for ISINK/ISOURCE = 20mA conditions.
Is the LT6220IS8#TRPBF pin-compatible with standard SO-8 op amps like the LM358?
No - while the LT6220IS8#TRPBF uses the standard op amp pinout (VOUT, –IN, +IN, VS–, NC, VS+, NC, NC), the NC pins (5, 7, 8) are not bonded and must remain unconnected. Unlike LM358, it lacks dual-channel functionality and requires careful attention to unused pin handling per datasheet guidelines.
What is the input bias current specification for LT6220IS8#TRPBF over temperature?
The LT6220IS8#TRPBF specifies input bias current ≤150nA maximum over the full –40°C to 85°C range (VCM = 1V). At 25°C, typical bias current is 15nA. This low, stable bias current minimizes voltage errors in high-impedance feedback networks and sensor interfaces.
Can the LT6220IS8#TRPBF drive capacitive loads without instability?
The LT6220IS8#TRPBF can drive up to 100pF directly, but larger capacitive loads require series output resistance (e.g., 10–50Ω) as shown in Typical Performance Characteristic G31/G32. Without isolation, >100pF loads cause overshoot and settling degradation due to phase margin reduction.
LT6220IS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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#TRPBF FAQ
1.How can I place an order for LT6220IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6220IS8#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 LT6220IS8#TRPBF reliable?
The price and inventory of LT6220IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6220IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6220IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6220IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6220IS8#TRPBF?
LT6220IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6220IS8#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 LT6220IS8#TRPBF?
For technical support, including LT6220IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6220IS8#TRPBF requirements.
6.How does Aetrix verify that LT6220IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6220IS8#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 LT6220IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6220IS8#TRPBF?
All LT6220IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6220IS8#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 LT6220IS8#TRPBF part is unused and in its original packaging.
Return procedure for LT6220IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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