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Analog Devices Inc. LTC6416IDDB#TRMPBF
- Part No.:
- LTC6416IDDB#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC6416IDDB#TRMPBF.pdf
- Description:
- IC BUFFER 1 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:519
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Product details
Overview
LTC6416IDDB#TRMPBF from Analog Devices (formerly Linear Technology) is a high-speed, low-noise differential unity-gain ADC driver IC optimized for driving 12-/14-/16-bit high-speed analog-to-digital converters. It delivers 2 GHz –3dB small-signal bandwidth, 1.8 nV/√Hz output noise, and –84.5 dBc IM3 at 140 MHz with 2 VP-P differential output - enabling high-fidelity IF sampling in communications receivers and radar front-ends.
For engineers reviewing the LTC6416IDDB#TRMPBF datasheet, LTC6416IDDB#TRMPBF pinout, LTC6416IDDB#TRMPBF application, or LTC6416IDDB#TRMPBF equivalent, key selection criteria include its programmable output clamping (CLHI/CLLO pins), DC-coupled capability with –40 mV common-mode offset, 2.7 V to 3.9 V single-supply operation, and 10-lead 3 mm × 2 mm DFN package optimized for direct placement adjacent to Linear/Analog ADCs.
Technical Context
The LTC6416IDDB#TRMPBF implements a fully differential buffer architecture with integrated output common-mode control via the VCM pin and user-programmable fast-recovery voltage clamps on both OUT+ and OUT–. Its 12 kΩ differential input impedance supports transformer-based gain staging (e.g., 1:4 or 1:8), while internal 9 Ω output resistors stabilize drive into capacitive ADC inputs and simplify external filter design.
It operates over –40°C to +85°C (Industrial grade), draws 42 mA typical supply current at 3.6 V, and maintains ±0.1 dB flatness up to 300 MHz - critical for wideband signal integrity in undersampled RF receiver chains and high-resolution CCD imaging interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3dB Bandwidth | 2 GHz - enables direct RF sampling up to S-band without intermediate frequency conversion |
| Output Noise Density | 1.8 nV/√Hz - preserves SNR when driving 16-bit ADCs like LTC2208 at high input frequencies |
| OIP3 (140 MHz) | 46.25 dBm - supports high dynamic range in multi-tone LTE/WiMAX receiver applications |
| Differential Input Impedance | 12 kΩ - allows use of 1:4/1:8 transformers for system-level gain without external biasing |
| Supply Voltage Range | 2.7 V to 3.9 V - compatible with modern low-voltage FPGA/ASIC power rails and battery-powered systems |
| Package | 10-lead 3 mm × 2 mm DFN - flow-through pinout minimizes layout parasitics and eases routing next to ADCs |
| Operating Temperature | –40°C to +85°C - qualified for industrial and base station environments |
Pinout & Package
The LTC6416IDDB#TRMPBF is housed in a 10-lead, 3 mm × 2 mm plastic DFN package with exposed thermal pad (Pin 11 = GND). The flow-through pinout minimizes trace length between driver and ADC, reducing mismatch and improving high-frequency performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCM (1) | Output common-mode voltage control | Sets OUT+/OUT– common-mode level; default ~1.36 V at 3.6 V supply; requires ≥0.1 μF bypass |
| CLHI (2) | Programmable high-side output clamp | Defines upper output voltage limit; default 2.45 V at 3.6 V; enables fast recovery from overdrive |
| IN+ (3) | Non-inverting input | High-impedance (6 kΩ) node; self-biased to VCM when AC-coupled |
| IN– (4) | Inverting input | High-impedance (6 kΩ) node; complements IN+ for fully differential operation |
| CLLO (5) | Programmable low-side output clamp | Defines lower output voltage limit; default 0.265 V at 3.6 V; ensures rail-safe swing into ADC |
| GND (6, 9, 11) | Ground reference / thermal pad | All three GND terminals and exposed pad must connect to same potential; pad must be soldered for thermal reliability |
| OUT– (7) | Inverted output | Low-impedance (9 Ω) output; designed for direct connection to ADC differential input |
| OUT+ (8) | Non-inverted output | Low-impedance (9 Ω) output; complements OUT– for balanced drive |
| V+ (10) | Positive supply | Accepts 2.7 V–3.9 V; requires local 680 pF + 0.1 μF bypassing |
Key Features
| Feature | Design Value |
|---|---|
| Programmable output clamping | Independent CLHI/CLLO pins allow precise setting of output voltage limits to match ADC input range and prevent saturation |
| DC-coupled signal path | Supports baseband and zero-IF architectures without AC coupling capacitors; –40 mV common-mode offset simplifies level-shifting |
| Transformer-compatible input | 12 kΩ differential input impedance enables direct interface with 1:4/1:8 RF transformers for passive gain and impedance transformation |
| Integrated VCM interface | VCM pin directly matches common-mode outputs of Linear/Analog high-speed ADC families (e.g., LTC2208), eliminating external bias networks |
| Low power at high speed | 150 mW typical power at 3.6 V enables dense mixed-signal PCB layouts without thermal derating |
Applications
| IF Sampling Receivers | SAW Filter Interface |
|---|---|
Use Scenario: Direct sampling of 140 MHz IF signals from mixer outputs in cellular base station receivers. IC Role / Device Role / Timing Role: Differential ADC driver providing gain-of-one buffering with ultra-low distortion and noise before digitization by LTC2208. Use Value: Achieves –84.5 dBc IM3 and 70.7 dB SNR at 140 MHz, meeting LTE ACLR requirements without additional filtering stages. | Use Scenario: Interfacing narrowband SAW filters (e.g., 190–200 MHz bandpass) to high-speed ADCs in spectrum analyzers. IC Role / Device Role / Timing Role: Low-output-impedance buffer isolating filter from ADC capacitance, preserving Q-factor and passband flatness. Use Value: 9 Ω series output resistance enables simple RC anti-aliasing without degrading SAW response; 2 GHz bandwidth accommodates filter skirt roll-off. |
| Impedance Transformer | CCD Buffer |
Use Scenario: Converting 50 Ω single-ended RF source to 100 Ω differential drive using 1:4 balun + LTC6416IDDB#TRMPBF. IC Role / Device Role / Timing Role: High-Z differential input accepts transformed signal; low-Z outputs drive ADC with minimal reflection. Use Value: 12 kΩ input impedance avoids loading balun secondary; programmable clamps protect ADC against balun transient overshoot. | Use Scenario: Driving 16-bit CCD output lines in scientific imaging systems requiring DC-coupled, low-noise amplification. IC Role / Device Role / Timing Role: Unity-gain buffer preserving pixel-level linearity and minimizing dark-current-induced offset drift. Use Value: –74 dBc HD2/HD3 at 300 MHz and <1 μV/°C input offset drift ensure sub-LSB accuracy across temperature in long-exposure applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential ADC driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH5401RTVT | Higher supply current (65 mA), wider supply range (3.3 V–5.5 V), fixed 100 Ω differential output impedance | Optimized for 5.5 V systems and higher-power ADCs; lacks programmable clamping | Select when driving ADCs requiring >100 Ω termination or operating above 4 V supply |
| ADA4961ACPZ-R7 | Lower noise (1.3 nV/√Hz), higher OIP3 (50.5 dBm @ 140 MHz), but only 1.3 GHz –3dB bandwidth | Better for ultra-high-SNR applications below 1 GHz; not suitable for 2 GHz RF sampling | Select when SNR >75 dB is required and bandwidth ≤1.3 GHz suffices |
Compared with LMH5401RTVT and ADA4961ACPZ-R7, the LTC6416IDDB#TRMPBF uniquely balances 2 GHz bandwidth, programmable clamping, and low 150 mW power - making it optimal for compact, thermally constrained IF sampling designs where ADC protection and layout simplicity are critical.
Availability
LTC6416IDDB#TRMPBF is available at Aetrix Electronics and suitable for IF sampling receivers, SAW filter interfaces, impedance transformer circuits, and CCD buffer applications requiring stable component supply across industrial temperature ranges.
Supply support for LTC6416IDDB#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 acquired Linear Technology in 2017 and maintains full product support, datasheets, and application engineering for legacy Linear parts including the LTC6416 family.
The LTC6416IDDB#TRMPBF belongs to Linear's high-speed differential amplifier product line, engineered specifically for precision, wideband ADC driving in communications, instrumentation, and medical imaging systems.
FAQ
What is the operating temperature range of the LTC6416IDDB#TRMPBF?
The LTC6416IDDB#TRMPBF is rated for industrial operation from –40°C to +85°C, as confirmed by its "I" grade marking and Absolute Maximum Ratings table. This range is validated across all electrical specifications including gain flatness, noise, and distortion performance - making it suitable for base station, test equipment, and outdoor embedded systems where ambient temperatures exceed commercial limits.
Does the LTC6416IDDB#TRMPBF require external gain-setting components?
No, the LTC6416IDDB#TRMPBF is a unity-gain buffer and requires no external resistors or capacitors for gain configuration. Its differential input impedance of 12 kΩ and flow-through pinout eliminate the need for feedback networks or biasing circuitry - reducing bill-of-materials count and PCB area while improving high-frequency stability compared to op-amp-based drivers.
How does the VCM pin function in the LTC6416IDDB#TRMPBF?
The VCM pin on the LTC6416IDDB#TRMPBF sets the common-mode voltage at OUT+ and OUT–. When left floating, it defaults to ~1.36 V on a 3.6 V supply. Driving it externally allows precise matching to the ADC's required input common-mode level - such as the 1.25 V VCM pin on LTC2208 - enabling seamless DC-coupled interfacing without level-shifting circuitry.
Can the LTC6416IDDB#TRMPBF be used with AC-coupled inputs?
Yes, the LTC6416IDDB#TRMPBF supports AC-coupled inputs. Its IN+ and IN– pins are internally biased to the voltage present on the VCM pin, eliminating the need for external bias resistors. This feature simplifies front-end design in zero-IF receivers and allows flexible integration with transformer-coupled or capacitor-coupled signal sources while maintaining optimal common-mode alignment.
What is the purpose of the CLHI and CLLO pins on the LTC6416IDDB#TRMPBF?
The CLHI and CLLO pins on the LTC6416IDDB#TRMPBF provide user-programmable high- and low-side output voltage clamps. They limit the instantaneous swing of OUT+ and OUT– to prevent ADC input overload and enable fast recovery (<5 ns) from overdrive events - critical for handling large transient signals in radar pulse detection or burst-mode communications without data corruption.
LTC6416IDDB#TRMPBF 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:
- Buffer
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 3400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 2 GHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 42mA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 3.9 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x2)
LTC6416IDDB#TRMPBF FAQ
1.How can I place an order for LTC6416IDDB#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6416IDDB#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 LTC6416IDDB#TRMPBF reliable?
The price and inventory of LTC6416IDDB#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6416IDDB#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6416IDDB#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6416IDDB#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6416IDDB#TRMPBF?
LTC6416IDDB#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6416IDDB#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 LTC6416IDDB#TRMPBF?
For technical support, including LTC6416IDDB#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6416IDDB#TRMPBF requirements.
6.How does Aetrix verify that LTC6416IDDB#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6416IDDB#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 LTC6416IDDB#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6416IDDB#TRMPBF?
All LTC6416IDDB#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6416IDDB#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 LTC6416IDDB#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6416IDDB#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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