LTC1094 Datasheet | Linear Technology

LTC1091/LTC1092 LTC1093/LTC1094 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems Features s s s s s s s s s Programmable Features - Unipolar/Bipolar Conversions - Differential/Single-Ended Multiplexer Configurations Sample-and-Holds Single Supply 5V, 10V or ± 5V Operation Direct 3- or 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel I/O Ports Analog Inputs mon Mode to Supply Rails Resolution: 10 Bits Total Unadjusted Error (A Grade): ±1LSB Over Temp Fast Conversion Time: 20µs Low Supply Current LTC1091: 3.5m A Max, 1.5m A Typ LTC1092/LTC1093/LTC1094: 2.5m A Max, 1m A Typ and-holds. On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers. These circuits can provide a plete data acquisition system in ratiometric applications or can be used with an external reference in others. The high impedance analog inputs and the ability to operate with reduced spans (below 1V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages. An efficient serial port municates without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing eight channels of data to be transmitted over as few as three wires. This, coupled with low power consumption, makes remote location possible and facilitates transmitting data through isolation barriers. Temperature drift of offset, linearity and full-scale error are all extremely low (1ppm/°C typically) allowing all grades to be specified with offset and linearity errors of ± 0.5LSB maximum over temperature. In addition, the A grade devices are specified with full-scale error and total unadjusted error (including the effects of offset, linearity and full-scale errors) of ±1LSB maximum over temperature. The lower grade has a full-scale specification of ± 2LSB for applications where full scale is adjustable or less critical. , LTC and LT are registered trademarks of...