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Analog Devices Inc. LTC6228IDC#TRMPBF
- Part No.:
- LTC6228IDC#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC6228IDC#TRMPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:300
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Product details
Overview
LTC6228IDC#TRMPBF from Analog Devices is a single-channel, rail-to-rail output, unity-gain stable operational amplifier optimized for high-speed, low-noise signal conditioning. It delivers 730MHz –3dB bandwidth (AV = +1), 890MHz gain-bandwidth product, 500V/µs slew rate, and ultra-low 0.88nV/√Hz input voltage noise - enabling precision driving of 18-bit SAR ADCs like the LTC2387-18 in high-dynamic-range data acquisition systems.
For engineers reviewing the LTC6228IDC#TRMPBF datasheet, LTC6228IDC#TRMPBF pinout, LTC6228IDC#TRMPBF application, or LTC6228IDC#TRMPBF equivalent, key selection criteria include its 2mm × 2mm DFN package with exposed V– pad, shutdown functionality (500µA disable current), rail-to-rail output swing, and guaranteed performance across –40°C to 85°C.
Technical Context
The LTC6228IDC#TRMPBF employs a proprietary high-speed bipolar complementary architecture to achieve simultaneous low noise, high slew rate, and unity-gain stability. Its internal bias current cancellation circuitry is software-controllable via the SHDN pin, allowing dynamic optimization between input current noise (3pA/√Hz enabled) and offset drift (0.4µV/°C).
It operates from 2.8V to 11.75V total supply, supports input common-mode range extending to the negative rail, and maintains >135dB open-loop gain (RL = 1kΩ) and >100dB CMRR up to 100kHz - making it suitable for DC-coupled, wide-swing, high-fidelity analog front-ends where distortion (<–100dBc at 2MHz, 4VP-P) and settling time (26ns to 0.1%) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 890MHz - enables stable closed-loop operation up to ~730MHz at AV = +1 for high-frequency filtering or buffer applications. |
| Slew Rate | 500V/µs - supports clean amplification of fast transient signals without slewing-induced distortion in ADC driver stages. |
| Input Voltage Noise | 0.88nV/√Hz @ 1MHz - preserves SNR in low-amplitude, wideband sensor or transimpedance amplifier interfaces. |
| Supply Current | 16mA typical per channel - balances speed and power efficiency for portable or thermally constrained designs. |
| Shutdown Current | 500µA - reduces system standby power while retaining fast wake-up (900ns turn-on time) for duty-cycled signal chains. |
| Operating Temp Range | –40°C to 85°C - qualified for industrial-grade embedded instrumentation and test equipment environments. |
| Output Drive | ±80mA min - drives heavy capacitive loads (e.g., ADC input capacitance + PCB trace) without instability or gain peaking. |
Pinout & Package
The LTC6228IDC#TRMPBF is housed in a 6-lead, 2mm × 2mm plastic DFN package with an exposed thermal pad (Pin 7) connected to V–. This compact footprint supports high-density PCB layouts while enabling efficient heat dissipation (θJA = 80°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive Supply | Accepts 2.8V to 11.75V total supply; decoupling capacitor required near pin for high-frequency PSRR. |
| V– | Negative Supply / Exposed Pad | Connects to ground or negative rail; exposed pad must be soldered to PCB for thermal and electrical integrity. |
| +IN | Non-Inverting Input | High-impedance node (4MΩ common-mode RIN); supports DC-coupled inputs down to V–. |
| –IN | Inverting Input | Differential input pair node; matched to +IN for precision gain-setting and feedback stability. |
| OUT | Amplifier Output | Rail-to-rail swing (within 20mV of rails @ 25mA); capable of sourcing/sinking ±80mA into resistive loads. |
| SHDN | Shutdown Control | Logic-level input: < V+ – 2.65V disables amp (500µA ISD); > V+ – 1.6V enables operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 0.88nV/√Hz enables high-resolution measurement of µV-level sensor outputs without degrading system SNR. |
| Configurable bias cancellation | SHDN pin double-function allows real-time trade-off between input current noise (3pA/√Hz) and offset drift (0.4µV/°C). |
| Rail-to-rail output swing | Delivers full dynamic range to ADCs or downstream stages with no headroom loss - critical for 3V and 5V single-supply systems. |
| High-speed settling | 26ns to 0.1% for 2V step ensures accurate sampling of fast waveforms in digitizers and oscilloscope front-ends. |
| Robust input protection | Back-to-back diodes on inputs tolerate overvoltage up to ±0.3V beyond supplies - simplifies external protection design. |
Applications
| High-Speed ADC Driver | Transimpedance Amplifier |
|---|---|
Use Scenario: Driving the LTC2387-18 18-bit SAR ADC with 15Msps sampling in a precision data acquisition module. IC Role / Device Role / Timing Role: Buffer and level-shift analog input signal while preserving bandwidth and minimizing harmonic distortion before sampling. Use Value: Achieves 93.4dB SNR and 95dB SFDR in FFT testing - directly enabled by 0.88nV/√Hz noise and <–100dBc HD2/HD3 at 2MHz. | Use Scenario: Converting photodiode current to voltage in optical time-of-flight (ToF) sensors requiring sub-nanosecond response. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth transimpedance stage with minimal phase lag for precise pulse timing recovery. Use Value: 730MHz bandwidth and 500V/µs slew rate support <10ns rise-time signal capture without droop or overshoot. |
| Active Filter Stage | Video Signal Conditioning |
Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a high-speed ADC in medical ultrasound receivers. IC Role / Device Role / Timing Role: High-Q, low-distortion active filter element maintaining amplitude and phase linearity across 1–10MHz band. Use Value: >100dB CMRR and <0.01° differential phase error (NTSC) ensure minimal crosstalk and color fidelity in multi-channel imaging. | Use Scenario: Amplifying and buffering composite video (CVBS) or RGB signals in broadcast-grade video processing hardware. IC Role / Device Role / Timing Role: DC-coupled video driver with rail-to-rail output and low differential gain/phase error for analog video path integrity. Use Value: 0.002% differential gain and 0.018° differential phase error preserve color saturation and hue accuracy in SD/HD video signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4898-1ARMZ | Higher 1.05nV/√Hz noise, lower 280MHz GBW, no shutdown pin, MSOP-8 package. | Better DC precision (125µV VOS), but insufficient bandwidth for >10MHz ADC drivers. | Select when ultra-low offset and drift dominate over speed/noise; avoid for >5MHz closed-loop designs. |
| LMH6629MA/NOPB | Higher 1.4nV/√Hz noise, 1.5GHz GBW, no rail-to-rail output, SOIC-8 package. | Superior small-signal bandwidth, but output swing limited to ~1.2V from rails - incompatible with low-voltage ADCs. | Choose for RF/IF gain blocks where output headroom is less critical than raw bandwidth. |
Compared with ADA4898-1ARMZ and LMH6629MA/NOPB, the LTC6228IDC#TRMPBF uniquely combines 730MHz bandwidth, 0.88nV/√Hz noise, rail-to-rail output, and integrated shutdown in a 2mm × 2mm DFN - making it the only option among the three qualified for space-constrained, battery-aware, high-SNR ADC driver applications across –40°C to 85°C.
Availability
LTC6228IDC#TRMPBF is available at Aetrix Electronics and suitable for high-speed data acquisition, optical sensing, precision instrumentation, and video signal conditioning requiring stable component supply and guaranteed industrial temperature operation.
Supply support for LTC6228IDC#TRMPBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.
The LTC6228 family was designed specifically for high-fidelity, high-speed analog signal conditioning - targeting applications demanding simultaneous low noise, wide bandwidth, rail-to-rail output, and robust DC precision in compact packages.
FAQ
What is the operating supply voltage range for the LTC6228IDC#TRMPBF?
The LTC6228IDC#TRMPBF operates from a total supply voltage of 2.8V to 11.75V - supporting single-supply (e.g., 3V, 5V) and dual-supply (e.g., ±2.5V, ±5V) configurations. Performance is fully specified at 3V, 5V, and ±5V supplies, with guaranteed functionality across the entire range per the Absolute Maximum Ratings table.
Does the LTC6228IDC#TRMPBF support rail-to-rail input common-mode range?
The LTC6228IDC#TRMPBF supports input common-mode voltage from V– – 0.1V to V+ – 1.2V - meaning it includes the negative rail but does not extend fully to the positive rail. This allows true single-supply operation with grounded inputs, but requires attention to VCM headroom when using high positive common-mode voltages.
How is shutdown controlled on the LTC6228IDC#TRMPBF, and what happens to the output during shutdown?
Shutdown is controlled via the SHDN pin: driving it below V+ – 2.65V disables the amplifier, reducing supply current to 500µA. During shutdown, the output enters a high-impedance state with leakage current ≤100nA - preventing loading of downstream circuits while preserving signal integrity in multiplexed or shared-bus architectures.
What is the thermal pad connection requirement for the LTC6228IDC#TRMPBF DFN package?
The exposed thermal pad (Pin 7) of the LTC6228IDC#TRMPBF must be soldered directly to a PCB copper plane tied to V–. This connection is mandatory for both thermal management (θJA = 80°C/W) and electrical stability - floating or unconnected pads cause increased junction temperature, degraded PSRR, and potential oscillation under load.
Can the LTC6228IDC#TRMPBF drive a 100Ω load while maintaining specified AC performance?
Yes - the LTC6228IDC#TRMPBF delivers ≥80mA output current and maintains >100dB CMRR and <–75dBc harmonic distortion (HD2/HD3) into 100Ω loads at 1–5MHz. However, output swing is reduced to within ~180mV of the rails at 25mA sink/source, so full rail-to-rail utilization requires load currents ≤5mA for minimal saturation.
LTC6228IDC#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 500V/µs
- Gain Bandwidth Product:
- 890 MHz
- -3db Bandwidth:
- 730 MHz
- Current - Input Bias:
- 16 µA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 16mA
- Current - Output / Channel:
- 140 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11.75 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2)
LTC6228IDC#TRMPBF FAQ
1.How can I place an order for LTC6228IDC#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6228IDC#TRMPBF 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 LTC6228IDC#TRMPBF reliable?
The price and inventory of LTC6228IDC#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6228IDC#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6228IDC#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6228IDC#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6228IDC#TRMPBF?
LTC6228IDC#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6228IDC#TRMPBF 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 LTC6228IDC#TRMPBF?
For technical support, including LTC6228IDC#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6228IDC#TRMPBF requirements.
6.How does Aetrix verify that LTC6228IDC#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6228IDC#TRMPBF 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 LTC6228IDC#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6228IDC#TRMPBF?
All LTC6228IDC#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6228IDC#TRMPBF, 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 LTC6228IDC#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6228IDC#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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