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LTC1598CG Datasheet(PDF) 1 Page - Linear Technology |
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LTC1598CG Datasheet(HTML) 1 Page - Linear Technology |
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1 / 24 page  1 LTC1594/LTC1598 15948fb The LTC ®1594/LTC1598 are micropower, 12-bit sampling A/D converters that feature 4- and 8-channel multiplexers, respectively. They typically draw only 320 μA of supply current when converting and automatically power down to a typical supply current of 1nA between conversions. The LTC1594 is available in a 16-pin SO package and the LTC1598 is packaged in a 24-pin SSOP. Both operate on a 5V supply. The 12-bit, switched-capacitor, 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 consump- tion, makes remote location possible and facilitates trans- mitting 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. 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters ■ 12-Bit Resolution ■ Auto Shutdown to 1nA ■ Low Supply Current: 320 μA Typ ■ Guaranteed ±3/4LSB Max DNL ■ Single Supply 5V Operation (3V Versions Available: LTC1594L/LTC1598L) ■ Multiplexer: 4-Channel MUX (LTC1594) 8-Channel MUX (LTC1598) ■ Separate MUX Output and ADC Input Pins ■ MUX and ADC May Be Controlled Separately ■ Sampling Rate: 16.8ksps ■ I/O Compatible with QSPI, SPI and MICROWIRE TM, etc. ■ Small Package: 16-Pin Narrow SO (LTC1594) 24-Pin SSOP (LTC1598) ■ Pen Screen Digitizing ■ Battery-Operated Systems ■ Remote Data Acquisition ■ Isolated Data Acquisition ■ Battery Monitoring ■ Temperature Measurement 24 μW, 4-Channel, 12-Bit ADC Samples at 200Hz and Runs Off a 5V Supply Supply Current vs Sample Rate APPLICATIO S FEATURES DESCRIPTIO TYPICAL APPLICATIO , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ANALOG INPUTS 0V TO 5V RANGE 1k 1 μF 1594/98 TA01 OPTIONAL ADC FILTER CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 20 21 22 23 24 1 2 3 + – 8-CHANNEL MUX 8 COM GND 4, 9 MPU SERIAL DATA LINK MICROWIRE AND SPI COMPATABLE 10 6 5, 14 7 11 CSADC CSMUX CLK DIN DOUT 12 13 NC NC 12-BIT SAMPLING ADC ADCIN MUXOUT 18 17 16 15, 19 1 μF 5V VREF VCC SAMPLE FREQUENCY (kHz) 0.1 1 10 100 1000 1 10 100 1594/98 TA02 TA = 25°C VCC = 5V VREF = 5V fCLK = 320kHz |
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Similar Description - LTC1598CG |
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