LTC1861L - µPower, 3V, 12-Bit, 150ksps 1- and 2-Channel ADCs in MSOP
Features
- 12-Bit 150ksps ADC in MSOP Package
- Single 3V Supply
- Low Supply Current: 450µA (Typ)
- Auto Shutdown Reduces Supply Current to 10µA at 1ksps
- True Differential Inputs
- 1-Channel (LTC1860L) or 2-Channel (LTC1861L) Versions
- SPI/MICROWIRE™ Compatible Serial I/O
- High Speed Upgrade to LTC1285/LTC1288
- Pin Compatible with 16-Bit LTC1864L/LTC1865L
- No Minimum Data Transfer Rate
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC™1860L/LTC1861L are 12-bit A/D converters that are offered in MSOP and SO-8 packages and operate on a single 3V supply. At 150ksps, the supply current is only 450µA. The supply current drops at lower speeds because the LTC1860L/LTC1861L automatically power down between conversions. These 12-bit switched capacitor successive approximation ADCs include sample-and-holds. The LTC1860L has a differential analog input with an external reference pin. The LTC1861L offers a software selectable 2-channel MUX and an external reference pin on the MSOP version.
The 3-wire, serial I/O, MSOP or SO-8 package and extremely high sample rate-to-power ratio make these ADCs ideal choices for compact, low power, high speed systems.
These ADCs can be used in ratiometric applications or with external references. The high impedance analog inputs and the ability to operate with reduced spans down to 1V full scale allow direct connection to signal sources in many applications, eliminating the need for external gain stages.
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 |
|---|---|---|---|---|---|
| LTC1861LCMS#PBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC1861LCMS#TRPBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC1861LCS8#PBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LTC1861LCS8#TRPBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LTC1861LIMS#PBF | MS-10 | MS | I | 05-08-1661 | Yes |
| LTC1861LIMS#TRPBF | MS-10 | MS | I | 05-08-1661 | Yes |
| LTC1861LIS8#PBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
| LTC1861LIS8#TRPBF | SO-8 | S8 | I | 05-08-1610 (S8) | 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 | |
|---|---|---|---|---|---|---|
| LTC1861LCMS#PBF | MS-10 | C | $3.45 | $2.80 | Yes | |
| LTC1861LCMS#TRPBF | MS-10 | C | $2.86 | Yes | ||
| LTC1861LCS8#PBF | SO-8 | C | $3.40 | $2.75 | Yes | |
| LTC1861LCS8#TRPBF | SO-8 | C | $2.81 | Yes | ||
| LTC1861LIMS#PBF | MS-10 | I | $4.00 | $3.25 | Yes | |
| LTC1861LIMS#TRPBF | MS-10 | I | $3.31 | Yes | ||
| LTC1861LIS8#PBF | SO-8 | I | $3.95 | $3.20 | Yes | |
| LTC1861LIS8#TRPBF | SO-8 | I | $3.26 | 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
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1861LIMS#PBF | MS-10 | I | $4.00 | $3.25 | Yes | |
| LTC1861LIMS#TRPBF | MS-10 | I | $3.31 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- High Speed Data Acquisition
- Portable or Compact Instrumentation
- Low Power Battery-Operated Instrumentation
- Isolated and/or Remote Data Acquisition
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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.
