LTC1861 Datasheet

µPower, 12-Bit, 250ksps 2-Channel ADCs in MSOP

Part No.:
LTC1861
Manufacturer:
Linear Technology
Page:
18 Pages
Size:
321 KB
Views:
3
Update Time:
2024-06-03 11:14:19

LTC1861 DataSheet Applicable Part

Part No. In Stock Price Packaging SPQ Marking MSL Pins Temp Range Package Description
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC1861 DataSheet PDF

LTC1861 Features

  • 12-Bit 250ksps ADC in MSOP Package
  • Single 5V Supply
  • Low Supply Current: 850µA (Typ)
  • Auto Shutdown Reduces Supply Current to 2µA at 1ksps
  • True Differential Inputs
  • 2-Channel (LTC1861) Versions
  • SPI/MICROWIRE Compatible Serial I/O
  • High Speed Upgrade to LTC1286/LTC1298
  • Pin Compatible with 16-Bit LTC1864/LTC1865
  • Guaranteed Operation to 125°C (MSOP Package)

LTC1861 Applications

  • High Speed Data Acquisition
  • Portable or Compact Instrumentation
  • Low Power Battery-Operated Instrumentation
  • Isolated and/or Remote Data Acquisition

LTC1861 Description

The LTC1861 are 12-bit A/D converters that are offered in MSOP and SO-8 packages and operate on a single 5V supply. At 250ksps, the supply current is only 850µA. The supply current drops at lower speeds because the LTC1861 automatically power down to a typical supply current of 1nA between conversions. These 12-bit switched capacitor successive approximation ADCs include sample-and-holds. The LTC1861 offers a software-selectable 2-channel MUX and an adjustable 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.

LTC1861 Datasheet FAQs