LTC1598L Datasheet | Linear Technology

LTC1594L/LTC1598L 4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters Features s 12-Bit Resolution on 3V Supply s Low Supply Current: 160µA Typ s Auto Shutdown to 1n A s Guaranteed ±3/4LSB Max DNL s Guaranteed 2.7V Operation (5V Versions Available: LTC1594/LTC1598) s Multiplexer: 4-Channel MUX (LTC1594L) 8-Channel MUX (LTC1598L) s Separate MUX Output and ADC Input Pins s MUX and ADC May Be Controlled Separately s Sampling Rate: 10.5ksps s I/O patible with QSPI, SPI and MICROWIRETM, etc. s Small Package: 16-Pin Narrow SO (LTC1594L) 2U4-Pin SSOP (LTC1598L) APPLICATIO S s Pen Screen Digitizing s Battery-Operated Systems s Remote Data Acquisition s Isolated Data Acquisition s Battery Monitoring s Temperature Measurement DESCRIPTIO The LTC®1594L/LTC1598L are 3V micropower, 12-bit sampling A/D converters that feature 4- and 8-channel multiplexers, respectively. They typically draw only 160µA of supply current when converting and automatically power down to a typical supply current of 1n A between conversions. The LTC1594L is available in a 16-pin SO package and the LTC1598L is packaged in a 24-pin SSOP. Both operate on a 3V supply. The 12-bit, switchedcapacitor, successive approximation ADCs include a sample-and-hold. On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three or four wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers. The circuit can be used in ratiometric applications or with an external reference. The high impedance analog inputs and the ability to operate with reduced spans (to 1.5V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages. , LTC and LT are registered trademarks of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. TYPICAL APPLICATION 12µW,...