LTC1290 - Single Chip 12-Bit Data Acquisition System
Features
- Software Programmable Features
-Unipolar/Bipolar Conversion
-Four Differential/Eight Single Ended Inputs
-MSB or LSB First Data Sequence
-Variable Data Word Length
-Power Shutdown - Built-In Sample-and-Hold
- Single Supply 5V or ±5V Operation
- Direct Four Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
- 50kHz Maximum Throughput Rate
- Available in 20-Lead PDIP and SO Wide Packages
Typical Application
Description
The LTC®1290 is a data acquisition component which contains a serial I/O successive approximation A/D converter. It uses LTCMOS™ switched capacitor technology to perform either 12-bit unipolar or 11-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for either single-ended or differential inputs (or combinations thereof). An on-chip sample-and-hold is included for all single-ended input channels. When the LTC1290 is idle it can be powered down with a serial word in applications where low power consumption is desired.
The serial I/O is designed to be compatible with industry standard full duplex serial interfaces. It allows either MSB- or LSB-first data and automatically provides 2's complement output coding in the bipolar mode. The output data word can be programmed for a length of 8, 12 or 16 bits. This allows easy interface to shift registers and a variety of processors.
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 |
|---|---|---|---|---|---|
| LTC1290BCN#PBF | N-20 | N | C | 05-08-1510 (N20) | Yes |
| LTC1290BCSW#PBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290BCSW#TRPBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290BIN#PBF | N-20 | N | I | 05-08-1510 (N20) | Yes |
| LTC1290BISW#PBF | SW-20 | SW | I | 05-08-1620 (SW20) | Yes |
| LTC1290BISW#TRPBF | SW-20 | SW | I | 05-08-1620 (SW20) | Yes |
| LTC1290CCN#PBF | N-20 | N | C | 05-08-1510 (N20) | Yes |
| LTC1290CCSW#PBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290CCSW#TRPBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290CIN#PBF | N-20 | N | I | 05-08-1510 (N20) | Yes |
| LTC1290CISW#PBF | SW-20 | SW | I | 05-08-1620 (SW20) | Yes |
| LTC1290CISW#TRPBF | SW-20 | SW | I | 05-08-1620 (SW20) | Yes |
| LTC1290DCN#PBF | N-20 | N | C | 05-08-1510 (N20) | Yes |
| LTC1290DCSW#PBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290DCSW#TRPBF | SW-20 | SW | C | 05-08-1620 (SW20) | Yes |
| LTC1290DIN#PBF | N-20 | N | I | 05-08-1510 (N20) | Yes |
| LTC1290DISW#PBF | SW-20 | SW | I | 05-08-1620 (SW20) | Yes |
| LTC1290DISW#TRPBF | SW-20 | SW | I | 05-08-1620 (SW20) | 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 | |
|---|---|---|---|---|---|---|
| LTC1290BCN#PBF | N-20 | C | $25.00 | $19.75 | Yes | |
| LTC1290BCSW#PBF | SW-20 | C | $30.00 | $23.70 | Yes | |
| LTC1290BCSW#TRPBF | SW-20 | C | $23.80 | Yes | ||
| LTC1290BIN#PBF | N-20 | I | $34.75 | $28.20 | Yes | |
| LTC1290BISW#PBF | SW-20 | I | $34.75 | $28.20 | Yes | |
| LTC1290BISW#TRPBF | SW-20 | I | $28.30 | Yes | ||
| LTC1290CCN#PBF | N-20 | C | $20.00 | $15.80 | Yes | |
| LTC1290CCSW#PBF | SW-20 | C | $24.00 | $18.95 | Yes | |
| LTC1290CCSW#TRPBF | SW-20 | C | $19.05 | Yes | ||
| LTC1290CIN#PBF | N-20 | I | $28.25 | $22.60 | Yes | |
| LTC1290CISW#PBF | SW-20 | I | $28.25 | $22.60 | Yes | |
| LTC1290CISW#TRPBF | SW-20 | I | $22.70 | Yes | ||
| LTC1290DCN#PBF | N-20 | C | $8.35 | $6.60 | Yes | |
| LTC1290DCSW#PBF | SW-20 | C | $14.50 | $11.15 | Yes | |
| LTC1290DCSW#TRPBF | SW-20 | C | $11.25 | Yes | ||
| LTC1290DIN#PBF | N-20 | I | $23.25 | $19.10 | Yes | |
| LTC1290DISW#PBF | SW-20 | I | $23.25 | $19.10 | Yes | |
| LTC1290DISW#TRPBF | SW-20 | I | $19.20 | 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
- Resolution: 12 Bits
- Fast Conversion Time: 13µs Max Over Temp
- Low Supply Current: 6.0mA
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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.
