LTC1405 - 12-Bit, 5Msps, Sampling ADC
Features
- 5Msps Sample Rate
- Low Power Dissipation: 115mW
- Single 5V Supply or ±5V Supplies
- 71.3dB S/(N + D) and 85dB SFDR at Nyquist
- 100MHz Full-Power Bandwidth Sampling
- Input PGA
- Integral Nonlinearity Error <0.35LSB
- Differential Nonlinearity <0.25LSB
- ±2.048V, ±1.024V and ±0.512V Bipolar Input Range
- Out-of-Range Indicator
- True Differential Inputs with 75dB CMRR
- Pin-Compatible 10Msps Version (LTC1420)
- 28-Pin Narrow SSOP Package
Typical Application
Description
The LTC1405 is a 5Msps, 12-bit sampling A/D converter that draws only 115mW from either single 5V or dual ±5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold, a precision reference and a PGA input circuit.
The LTC1405 has a flexible input circuit that allows full-scale input ranges of ±2.048V, ±1.024V and ±0.512V. The input common mode range is rail-to-rail and a common mode bias voltage is provided for single supply applications. The input PGA has a digitally selectable 1x or 2x gain.
Maximum DC specs include ±1LSB INL and ±1LSB DNL over temperature. Outstanding AC performance includes 71.3dB S/(N + D) and 85dB SFDR at the Nyquist input frequency of 2.5MHz.
The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 100MHz bandwidth. The 75dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source. A separate output logic supply allows direct connection to 3V components.
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 |
|---|---|---|---|---|---|
| LTC1405CGN#PBF | SSOP-28 | GN | C | 05-08-1641 (GN28) | Yes |
| LTC1405CGN#TRPBF | SSOP-28 | GN | C | 05-08-1641 (GN28) | Yes |
| LTC1405IGN#PBF | SSOP-28 | GN | I | 05-08-1641 (GN28) | Yes |
| LTC1405IGN#TRPBF | SSOP-28 | GN | I | 05-08-1641 (GN28) | 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 | |
|---|---|---|---|---|---|---|
| LTC1405CGN#PBF | SSOP-28 | C | $8.50 | $5.95 | Yes | |
| LTC1405CGN#TRPBF | SSOP-28 | C | $6.01 | Yes | ||
| LTC1405IGN#PBF | SSOP-28 | I | $9.29 | $6.50 | Yes | |
| LTC1405IGN#TRPBF | SSOP-28 | I | $6.56 | 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 |
|---|---|---|---|
| DC362A-A | LTC1405CGN | 12-Bit, 5Msps ADC (requires DC718 controller) | $150.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 | |
| Buy Now | |||
Applications
- Telecommunications
- Digital Signal Processing
- Multiplexed Data Acquisition Systems
- High Speed Data Acquisition
- Spectral Analysis
- Imaging Systems
People Who Viewed This Product Also Viewed
- LTC1420 - 12-Bit, 10Msps,Sampling ADC
- LT5400 - Quad Matched Resistor Network
- LTC1406 - Low Power, 8-Bit, 20Msps, Sampling A/D Converter
- LTC6409 - 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver
- LTC1412 - 12-Bit, 3Msps, Sampling A/D Converter
- LT1028 - Ultra Low Noise Precision High Speed Op Amps
- LTC2314-14 - 14-Bit, 4.5Msps Serial Sampling ADC in TSOT
- LTC6655 - 0.25ppm Noise, Low Drift Precision References
- LTC1402 - Serial 12-Bit, 2.2Msps Sampling ADC with Shutdown
- LTC2400 - 24-Bit µPower No Latency Delta-Sigma ADC in SO-8
Product Notifications
Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.
Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.
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.
