LTC1292 - Single Chip 12-Bit Data Acquisition Systems
Features
- Built-In Sample-and-Hold
- Single Supply 5V Operation
- 60kHz Maximum Throughput Rate (LTC1292)
- Power Shutdown After Each Conversion (LTC1297)
- Direct 3-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
- Analog Inputs Common Mode to Supply Rails
Typical Application
Description
The LTC®1292/LTC1297 are data acquisition systems that contain a 12-bit, switched-capacitor successive approximation A/D, a differential input, sample-and-hold on the (+) input, and serial I/O. When the LTC1297 is idle between conversions it automatically powers down reducing the supply current to 5µA, typically. The LTC1292 is capable of digitizing signals at a 60kHz rate and with the device’s excellent AC characteristics, it can be used for DSP applications. All these features are packaged in an 8-pin DIP and are made possible using LTCMOS™ switched-capacitor technology.
The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing data to be transmitted over three wires. Because of their accuracy, ease of use and small package size these devices are well suited for digitizing analog signals in remote applications where minimum number of interconnects and power consumption are important.
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 |
|---|---|---|---|---|---|
| LTC1292BCN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LTC1292BIN8#PBF | N-8 | N | I | 05-08-1510 (N8) | Yes |
| LTC1292CCN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LTC1292CIN8#PBF | N-8 | N | I | 05-08-1510 (N8) | Yes |
| LTC1292DCN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LTC1292DIN8#PBF | N-8 | N | I | 05-08-1510 (N8) | 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 | |
|---|---|---|---|---|---|---|
| LTC1292BCN8#PBF | N-8 | C | $23.50 | $18.55 | Yes | |
| LTC1292BIN8#PBF | N-8 | I | $26.10 | $20.60 | Yes | |
| LTC1292CCN8#PBF | N-8 | C | $18.75 | $14.80 | Yes | |
| LTC1292CIN8#PBF | N-8 | I | $20.75 | $16.40 | Yes | |
| LTC1292DCN8#PBF | N-8 | C | $12.10 | $9.40 | Yes | |
| LTC1292DIN8#PBF | N-8 | I | $13.60 | $10.70 | 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: 12µs Max Over Temp
- Low Supply Current: 6.0mA
- Shutdown Supply Current: 5µA (LTC1297)
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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.
