LTC1409 - 12-Bit, 800ksps Sampling A/D Converter with Shutdown
Features
- Sample Rate: 800ksps
- Power Dissipation: 80mW
- 72.5dB S/(N + D) and 86dB THD at Nyquist
- No Pipeline Delay
- Nap (4mW) and Sleep (10µW) Shutdown Modes
- Operates with Internal 15ppm/°C Reference or External Reference
- True Differential Inputs Reject Common Mode Noise
- 20MHz Full Power Bandwidth Sampling
- ±2.5V Bipolar Input Range
- 28-Pin SO Wide and SSOP Package
Typical Application
Description
The LTC™1409 is a 1µs, 800ksps, sampling 12-bit A/D converter that draws only 80mW from ±5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a precision reference. Two digitally selectable power Shutdown modes provide flexibility for low power systems.The LTC1409 full-scale input range is ±2.5V. Maximum DC specs include ±1LSB INL and ±1LSB DNL over temperature. Outstanding AC performance includes 72.5dB S/(N + D) at the Nyquist input frequency of 400kHz.The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 20MHz bandwidth. The 60dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.The ADC has a µP compatible, 12-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. A digital output driver power supply pin allows direct connection to 3V logic.
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 |
|---|---|---|---|---|---|
| LTC1409CG#PBF | SSOP-28 | G | C | 05-08-1640 (G28) | Yes |
| LTC1409CG#TRPBF | SSOP-28 | G | C | 05-08-1640 (G28) | Yes |
| LTC1409CSW#PBF | SW-28 | SW | C | 05-08-1620 (SW28) | Yes |
| LTC1409CSW#TRPBF | SW-28 | SW | C | 05-08-1620 (SW28) | Yes |
| LTC1409IG#PBF | SSOP-28 | G | I | 05-08-1640 (G28) | Yes |
| LTC1409IG#TRPBF | SSOP-28 | G | I | 05-08-1640 (G28) | Yes |
| LTC1409ISW#PBF | SW-28 | SW | I | 05-08-1620 (SW28) | Yes |
| LTC1409ISW#TRPBF | SW-28 | SW | I | 05-08-1620 (SW28) | 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 | |
|---|---|---|---|---|---|---|
| LTC1409CG#PBF | SSOP-28 | C | $12.20 | $10.40 | Yes | |
| LTC1409CG#TRPBF | SSOP-28 | C | $10.50 | Yes | ||
| LTC1409CSW#PBF | SW-28 | C | $11.65 | $9.90 | Yes | |
| LTC1409CSW#TRPBF | SW-28 | C | $10.00 | Yes | ||
| LTC1409IG#PBF | SSOP-28 | I | $13.30 | $11.40 | Yes | |
| LTC1409IG#TRPBF | SSOP-28 | I | $11.50 | Yes | ||
| LTC1409ISW#PBF | SW-28 | I | $12.75 | $10.90 | Yes | |
| LTC1409ISW#TRPBF | SW-28 | I | $11.00 | 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.Click here to view our complete list of demo boards
Applications
- Telecommunications
- Digital Signal Processing
- Multiplexed Data Acquisition Systems
- High Speed Data Acquisition
- Spectrum Analysis
- Imaging Systems
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
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.
