Features and Benefits
- 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
The LTC1860L/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.
- High Speed Data Acquisition
- Portable or Compact Instrumentation
- Low Power Battery-Operated Instrumentation
- Isolated and/or Remote Data Acquisition
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
R380 Reliability Data3/22/2018
LTC1861L Companion Parts
Recommended µModule Isolator
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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