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Analog Devices Inc. LTC6229HDD#TRPBF
- Part No.:
- LTC6229HDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC6229HDD#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,365
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Product details
Overview
LTC6229HDD#TRPBF from Analog Devices is a dual, high-speed, rail-to-rail output operational amplifier optimized for ultra-low-noise, high-dynamic-range signal conditioning. It delivers 0.88nV/√Hz input voltage noise, 730MHz –3dB bandwidth (AV = +1), 500V/µs slew rate, and operates from 2.8V to 11.75V supplies. It is used in precision ADC driver circuits-e.g., driving the LTC2387-18 SAR ADC-with verified 93.4dB SNR and 95dB SFDR at 15Msps.
For engineers reviewing the LTC6229HDD#TRPBF datasheet, LTC6229HDD#TRPBF pinout, LTC6229HDD#TRPBF application, or LTC6229HDD#TRPBF equivalent, key selection criteria include its guaranteed –40°C to 125°C operation, shutdown current of 500µA, bias cancellation control via SHDN pin, and 10-lead 3mm × 3mm DFN package with exposed V– pad for thermal performance.
Technical Context
The LTC6229HDD#TRPBF implements a unity-gain-stable, fully differential-capable architecture with internal bias current cancellation that can be enabled/disabled via the SHDN pin to optimize noise vs. input current trade-offs. Its input stage supports common-mode voltages extending to the negative rail, and its rail-to-rail output delivers ±4V swing into 1kΩ at ±5V supplies.
It features dual independent amplifiers in a single 10-lead DFN package, each with dedicated +IN, –IN, OUT, V+, V–, and shared SHDN pins. The device maintains >135dB open-loop gain (RL = 1kΩ), 110dB CMRR, and <–100dBc harmonic distortion at 2MHz with 4VP-P output-critical for wideband data acquisition systems requiring low THD and high SFDR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 0.88nV/√Hz at 1MHz - enables high-resolution signal amplification without degrading SNR in front-end stages |
| –3dB Bandwidth | 730MHz (AV = +1, RL = 1kΩ) - supports fast settling and wideband video, RF sampling, and ADC interface applications |
| Slew Rate | 500V/µs - ensures faithful reproduction of high-slew transient signals up to 2MHz without slewing-induced distortion |
| Supply Range | 2.8V to 11.75V - allows flexible single- or dual-supply operation across industrial, medical, and test equipment rails |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive, downhole, and high-reliability embedded systems |
| Shutdown Current | 500µA per channel - reduces system power during idle cycles while retaining fast 900ns turn-on time |
| Output Drive | ±80mA min - drives heavy capacitive loads and low-impedance ADC inputs without external buffering |
Pinout & Package
Package: 10-Lead (3mm × 3mm) Plastic DFN with exposed V– pad (Pin 11), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | +INA, –INA, OUTA, V+ | Channel A non-inverting input, inverting input, output, and positive supply connection |
| 5, 6, 7, 8 | +INB, –INB, OUTB, SHDN | Channel B non-inverting input, inverting input, output, and shared shutdown control |
| 9, 10, 11 | V–, SHDNA, SHDNB | Negative supply (exposed pad), and dedicated shutdown enable/disable for each channel |
Key Features
| Feature | Design Value |
|---|---|
| Bias current cancellation | SHDN pin toggles between low-input-current mode (IB ≈ ±0.9µA) and low-noise mode (IB ≈ ±4.4µA), enabling optimization per application |
| Rail-to-rail output swing | Drives within 20mV of V+ and 20mV of V– at 25mA load - maximizes dynamic range in low-voltage systems |
| High open-loop gain | 135dB (5.6V/µV) at RL = 1kΩ - ensures precision closed-loop gain accuracy and low gain error |
| Low harmonic distortion | HD2/HD3 < –100dBc at 2MHz, 4VP-P - preserves signal fidelity in high-speed data converters and instrumentation |
| Thermal design support | θJA = 43°C/W with PCB-exposed V– pad - enables stable operation at full output current in compact layouts |
Applications
| Driving High-Dynamic-Range SAR ADCs | Active Filter Stages |
|---|---|
Use Scenario: Driving the LTC2387-18 18-bit SAR ADC at 15Msps with 7.3VP-P 1MHz input signal. IC Role / Device Role / Timing Role: Precision buffer and gain stage ensuring minimal added noise, distortion, and settling delay before sampling. Use Value: Achieves 93.4dB SNR and 95dB SFDR - directly attributable to 0.88nV/√Hz noise and <34ns 0.1% settling time. | Use Scenario: Implementing 5th-order low-pass filter for anti-aliasing in wideband data acquisition. IC Role / Device Role / Timing Role: High-speed, low-distortion active filter element with precise pole placement and gain stability. Use Value: Maintains <0.01% group delay variation up to 10MHz due to 890MHz GBW and 500V/µs slew rate. |
| High-Speed Differential-to-Single-Ended Conversion | Low-Voltage Hi-Fi Amplification |
Use Scenario: Converting LVDS or current-output DAC signals to single-ended analog for downstream processing. IC Role / Device Role / Timing Role: High-common-mode-rejection (110dB CMRR), fast settling differential receiver. Use Value: Delivers –107dBc HD2/HD3 at 1MHz with matched input bias currents (<1.6µA match), minimizing conversion artifacts. | Use Scenario: Audio line driver in battery-powered portable instrumentation with 3.3V supply. IC Role / Device Role / Timing Role: Low-noise, low-distortion output stage delivering clean 2VP-P signal into 1kΩ load. Use Value: Enables >110dB THD+N at 1kHz using only 16.5mA supply current - no external compensation required. |
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 |
|---|---|---|---|
| ADA4898-2 | Higher 1.2nV/√Hz noise, lower 225MHz GBW, no shutdown, SOIC-8 package | Best suited for fixed-gain, non-power-constrained precision instrumentation | Select when ultra-low distortion at DC–100kHz is prioritized over wideband noise and power management |
| LMH6629MA/NOPB | 0.92nV/√Hz noise, 1.5GHz GBW, no rail-to-rail output, higher 25mA supply current | Optimized for RF/IF gain blocks where output swing beyond 80% of rail is acceptable | Select when maximum small-signal bandwidth is critical and supply headroom permits non-rail-to-rail operation |
Compared with ADA4898-2 and LMH6629MA/NOPB, the LTC6229HDD#TRPBF uniquely combines sub-1nV/√Hz noise, 730MHz bandwidth, rail-to-rail output, and integrated shutdown-all in a thermally enhanced 3mm × 3mm DFN-making it optimal for space-constrained, high-dynamic-range ADC driver designs requiring wide temperature operation.
Availability
LTC6229HDD#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for LTC6229HDD#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets.
The LTC6229 belongs to the LTC6228/LTC6229 family of ultra-low-noise, high-speed op amps designed specifically for driving high-resolution SAR and pipeline ADCs while maintaining exceptional dynamic range and low distortion across wide supply and temperature ranges.
FAQ
What is the operating temperature range for the LTC6229HDD#TRPBF?
The LTC6229HDD#TRPBF is rated for continuous operation from –40°C to +125°C, with all electrical specifications guaranteed across this full range. This H-grade qualification makes LTC6229HDD#TRPBF suitable for under-hood automotive, industrial control, and downhole sensing applications where ambient temperatures exceed standard commercial limits.
Does the LTC6229HDD#TRPBF support single-supply operation?
Yes, the LTC6229HDD#TRPBF supports true single-supply operation from 2.8V to 11.75V. Its input common-mode range extends to the negative rail (V– – 0.1V), and its rail-to-rail output swings within 20mV of both supply rails under load - enabling full-scale signal handling in 3.3V or 5V systems without level-shifting circuitry.
How does the SHDN pin control bias current cancellation in the LTC6229HDD#TRPBF?
The SHDN pin on the LTC6229HDD#TRPBF provides dual functionality: applying V+ – 2.75V disables the amplifier (500µA shutdown current), while applying V+ – 1.0V to V+ – 0.35V enables bias current cancellation. In enabled mode, input bias current drops from ±4.4µA to ±0.9µA - reducing offset drift and improving CMRR at the cost of slightly higher voltage noise (0.94µVP-P 0.1–10Hz).
What is the minimum recommended PCB layout practice for thermal management of the LTC6229HDD#TRPBF?
For optimal thermal performance, the exposed V– pad (Pin 11) of the LTC6229HDD#TRPBF must be soldered to a minimum 100mm² copper pour connected to the system ground plane. Use ≥4 thermal vias (0.3mm diameter) under the pad, filled and plated, to inner-layer ground planes. This achieves the specified θJA = 43°C/W and prevents junction temperature exceedance at full 80mA output current.
Can the LTC6229HDD#TRPBF drive a 100Ω load while maintaining specified distortion performance?
Yes - the LTC6229HDD#TRPBF maintains HD2/HD3 < –79dBc at 5MHz with 4VP-P output into 100Ω (vs. –83dBc into 1kΩ), confirming robust drive capability. However, output swing is reduced to ~±3.2V under this load, and thermal derating applies above 25°C ambient due to increased power dissipation; full 80mA sourcing/sinking is supported but requires adherence to thermal layout guidelines.
LTC6229HDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC6229HDD#TRPBF FAQ
1.How can I place an order for LTC6229HDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6229HDD#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 LTC6229HDD#TRPBF reliable?
The price and inventory of LTC6229HDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6229HDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6229HDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6229HDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6229HDD#TRPBF?
LTC6229HDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6229HDD#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 LTC6229HDD#TRPBF?
For technical support, including LTC6229HDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6229HDD#TRPBF requirements.
6.How does Aetrix verify that LTC6229HDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6229HDD#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 LTC6229HDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6229HDD#TRPBF?
All LTC6229HDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6229HDD#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 LTC6229HDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC6229HDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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