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 softwareselectable 2-channel MUX and an external reference pin on the MSOP version.
FEATURES
â– 12-Bit 150ksps ADCs in MSOP Package
â– Single 3V Supply
■Low Supply Current: 450µA (Typ)
■Auto Shutdown Reduces Supply Current to 10µA at 1ksps
â– True Differential Inputs
â– 1-Channel (LTC1860L) or 2-Channel (LTC1861L) Versions
â– SPI/MICROWIRETM Compatible Serial I/O
â– High Speed Upgrade to LTC1285/LTC1288
â– Pin Compatible with 16-Bit LTC1864L/LTC1865L
â– No Minimum Data Transfer Rate
APPLICATIONS
â– High Speed Data Acquisition
â– Portable or Compact Instrumentation
â– Low Power Battery-Operated Instrumentation
â– Isolated and/or Remote Data Acquisition