LTC6401-8
LAST TIME BUY2.2GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz
- Part Models
- 4
- 1ku List Price
- Starting From $3.54
Part Details
- 2.2GHz –3dB Bandwidth
- Fixed Gain of 2.5V/V (8dB)
- –92dBc IMD3 at 70MHz (Equivalent OIP3 = 50dBm)
- –80.5dBc IMD3 at 140MHz (Equivalent OIP3 = 44dBm)
- 1nV/√Hz Internal Op Amp Noise
- 12.1dB Noise Figure
- Differential Inputs and Outputs
- 400Ω Input Impedance
- 2.85V to 3.5V Supply Voltage
- 45mA Supply Current (135mW)
- 1V to 1.6V Output Common Mode, Adjustable
- DC- or AC-Coupled Operation
- Max Differential Output Swing 4.6VP-P
- Small 16-Lead 3mm × 3mm × 0.75mm QFN Package
The LTC6401-8 is a high-speed differential amplifier targeted at processing signals from DC to 140MHz. The part has been specifically designed to drive 12-, 14- and 16-bit ADCs with low noise and low distortion, but can also be used as a general-purpose broadband gain block.
The LTC6401-8 is easy to use, with minimal support circuitry required. The output common mode voltage is set using an external pin, independent of the inputs, which eliminates the need for transformers or AC-coupling capacitors in many applications. The gain is internally fixed at 8dB (2.5V/V).
The LTC6401-8 saves space and power compared to alternative solutions using IF gain blocks and transformers. The LTC6401-8 is packaged in a compact 16-lead 3mm × 3mm QFN package and operates over the –40°C to 85°C temperature range.
Applications
- Differential ADC Driver
- Differential Driver/Receiver
- Single Ended to Differential Conversion
- IF Sampling Receivers
- SAW Filter Interfacing
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Application Note 1
Technical Articles 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC6401CUD-8#PBF | 16-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC6401CUD-8#TRPBF | 16-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC6401IUD-8#PBF | 16-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC6401IUD-8#TRPBF | 16-Lead QFN (3mm x 3mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 20, 2024 - 23_0089 Obsolescence of Tower Fab3 (JAZZ-3) SBC35 Process |
||
| LTC6401CUD-8#PBF | LAST TIME BUY | |
| LTC6401CUD-8#TRPBF | LAST TIME BUY | |
| LTC6401IUD-8#PBF | LAST TIME BUY | |
| LTC6401IUD-8#TRPBF | LAST TIME BUY | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC6409 | RECOMMENDED FOR NEW DESIGNS | 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver |
Tools & Simulations
LTspice 2
- LTC6401-8 Demo Circuit - Unity Gain for Fully-Differential Amplifiers
- LTC6401-8 - Differential Amplifiers and ADC Drivers
Models for the following parts are available in LTspice:
- LTC6401-14
- LTC6401-20
- LTC6401-26
- LTC6401-8
Sys-Parameter Models for Keysight Genesys
Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.
Open ToolADIsimRF
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC6401-8 3GHz Fully Differential ADC Driver Demo Circuit
Resources
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