LTC6406 - 3GHz, Low Noise, Rail-to-Rail Input Differential Amplifier/Driver
Features
- Low Noise: 1.6nV/v√Hz RTI
- Low Power: 18mA at 3V
- Low Distortion (HD2/HD3):
–80dBc/–69dBc at 50MHz, 2VP-P
–104dBc/–90dBc at 20MHz, 2VP-P - Rail-to-Rail Differential Input
- 2.7V to 3.5V Supply Voltage Range
- Fully Differential Input and Output
- Adjustable Output Common Mode Voltage
- 800MHz –3dB Bandwidth with AV = 1
- Gain-Bandwidth Product: 3GHz
- Low Power Shutdown
- Available in 8-Lead MSOP and Tiny 16-Lead 3mm x 3mm x 0.75mm QFN Packages
Typical Application
Description
The LTC6406 is a very low noise, low distortion, fully differential input/output amplifier optimized for 3V, single supply operation. The LTC6406 input common mode range is rail-to-rail, while the output common mode voltage is independently adjustable by applying a voltage on the VOCM pin. This makes the LTC6406 ideal for level shifting signals with a wide common mode range for driving 12-bit to 16-bit single supply, differential input ADCs.
A 3GHz gain-bandwidth product results in 70dB linearity for 50MHz input signals. The LTC6406 is unity gain stable and the closed-loop bandwidth extends from DC to 800MHz. The output voltage swing extends from near-ground to 2V, to be compatible with a wide range of ADC converter input requirements. The LTC6406 draws only 18mA, and has a hardware shutdown feature which reduces current consumption to 300µA.
The LTC6406 is available in a compact 3mm x 3mm 16-pin leadless QFN package as well as an 8-lead MSOP package, and operates over a –40°C to 85°C temperature range.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC6406CMS8E#PBF | MS-8 | MS8 | C | 05-08-1660 | Yes |
| LTC6406CMS8E#TRPBF | MS-8 | MS8 | C | 05-08-1660 | Yes |
| LTC6406CUD#PBF | 3x3 QFN-16 | UD | C | 05-08-1691 | Yes |
| LTC6406CUD#TRPBF | 3x3 QFN-16 | UD | C | 05-08-1691 | Yes |
| LTC6406IMS8E#PBF | MS-8 | MS8 | I | 05-08-1660 | Yes |
| LTC6406IMS8E#TRPBF | MS-8 | MS8 | I | 05-08-1660 | Yes |
| LTC6406IUD#PBF | 3x3 QFN-16 | UD | I | 05-08-1691 | Yes |
| LTC6406IUD#TRPBF | 3x3 QFN-16 | UD | I | 05-08-1691 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC6406CMS8E#PBF | MS-8 | C | $4.91 | $3.44 | Yes | |
| LTC6406CMS8E#TRPBF | MS-8 | C | $3.50 | Yes | ||
| LTC6406CUD#PBF | 3x3 QFN-16 | C | $4.91 | $3.44 | Yes | |
| LTC6406CUD#TRPBF | 3x3 QFN-16 | C | $3.50 | Yes | ||
| LTC6406IMS8E#PBF | MS-8 | I | $5.41 | $3.79 | Yes | |
| LTC6406IMS8E#TRPBF | MS-8 | I | $3.85 | Yes | ||
| LTC6406IUD#PBF | 3x3 QFN-16 | I | $5.41 | $3.79 | Yes | |
| LTC6406IUD#TRPBF | 3x3 QFN-16 | I | $3.85 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1058A-E | Combo Demoboard for LTC2207 and LTC6406, req. DC718 | $200.00 | |
| DC1147A-D | LTC6406 demo circuit | $100.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 | |
| Buy Now | |||
Applications
- Differential Input ADC Driver
- Single-Ended to Differential Conversion
- Level-Shifting Ground-Referenced Signals
- Level-Shifting VCC-Referenced Signals
- High-Linearity Direct Conversion Receivers
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Design Tools
LTspice
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LTC6406
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
