LTC1865L

U U FEATURES ■ 16-Bit 150ksps ADCs 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 (LTC1864L) or 2-Channel (LTC1865L) Versions ■ SPI/MICROWIRETM Compatible Serial I/O ■ 16-Bit Upgrade to 12-Bit LTC1285/LTC1288 ■ Pin Compatible with 12-Bit LTC1860L/LTC1861L ■ No Minimum Data Transfer Rate U APPLICATIO S ■ High Speed Data Acquisition ■ Portable or Compact Instrumentation ■ Low Power Battery-Operated Instrumentation ■ Isolated and/or Remote Data Acquisition LTC1864L/LTC1865L µPower, 3V, 16-Bit, 150ksps 1- and 2-Channel ADCs in MSOP DESCRIPTIO The LTC®1864L/LTC1865L are 16-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 LTC1864L/LTC1865L automatically power down between conversions. These 16-bit switched capacitor successive approximation ADCs include sample-and-holds. The LTC1864L has a differential analog input with an external reference pin. The LTC1865L offers a softwareselectable 2-channel MUX and an external reference pin on the MSOP version. The 3-wire, serial I/O, small 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 analo...