LTC6400IUD-20#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC6400IUD-20#PBF is a 3 GHz low-noise, low-distortion differential amplifier from Analog Devices with 20 dB fixed gain, 65 dB CMRR, and a 2 mV maximum input offset voltage. It is packaged in a 16-pin QFN for RF and ADC driver applications. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- LTC6400IUD-20#PBF Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC6400IUD-20#PBF?
- 3 GHz bandwidth for wideband RF and IF signal amplification
- Fixed 20 dB gain with low-noise differential topology
- 65 dB common-mode rejection ratio for balanced signal integrity
- 2 mV maximum input offset voltage for precision ADC driving
- 16-pin QFN package for compact RF front-end PCB layouts
- Optimized for driving high-speed ADC inputs up to 3 GHz
What is LTC6400IUD-20#PBF used for?
The LTC6400IUD-20#PBF serves as an ADC driver and IF amplifier in software-defined radios, base station receivers, and high-speed data acquisition systems requiring 3 GHz bandwidth with low distortion. Its 20 dB fixed gain and differential architecture reduce noise figure and reject common-mode interference on the analog signal path. The compact QFN-16 package integrates into high-density RF front-end modules next to wideband ADCs and frequency mixers.
What are the specifications of LTC6400IUD-20#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1691 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Common-mode Reject Ratio-Nom | 65dB |
| Input Offset Voltage-Max | 2000 µ V |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.0045V/us |
| Supply Voltage Limit-Max | 3.6V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC6400IUD-20#PBF datasheet?
LTC6400IUD-20#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC6400IUD-20#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the bandwidth of the LTC6400IUD-20#PBF and which frequency bands does that enable it to amplify?
The LTC6400IUD-20#PBF provides 3 GHz of bandwidth at 20 dB gain, covering LTE and 5G sub-6 GHz IF bands, Wi-Fi 2.4 GHz and 5 GHz channels, and wideband IF stages from DC to 3 GHz. This makes it suitable as a gain stage or ADC driver in software-defined radios, spectrum analyzers, and broadband test instruments where signal fidelity must be maintained across multiple decades of frequency.
How does the 65 dB CMRR of the LTC6400IUD-20#PBF benefit differential ADC driver designs in noisy environments?
A common-mode rejection ratio of 65 dB means the LTC6400IUD-20#PBF attenuates common-mode interference—such as power-supply noise and ground bounce—by a factor of over 1700 relative to the differential signal. In a PCB environment with 100 mV peak power-rail ripple, 65 dB CMRR keeps the residual common-mode error at the ADC input below 56 µV, well within the 2 mV offset voltage spec, preserving ADC dynamic range.
For a wideband ADC front end, why might the fixed 20 dB gain of the LTC6400IUD-20#PBF be preferable to a variable-gain amplifier?
Fixed-gain amplifiers like the LTC6400IUD-20#PBF maintain consistent noise figure, phase linearity, and 3 GHz bandwidth without the gain-dependent group-delay variation common in variable-gain designs. At 20 dB fixed gain, the noise contribution is well-characterized, allowing system designers to budget SNR directly for ADC inputs requiring a 2 mV offset voltage limit and 65 dB CMRR without iterative gain-calibration routines.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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