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LTC1854CG-TR Datasheet(PDF) 1 Page - Linear Technology |
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LTC1854CG-TR Datasheet(HTML) 1 Page - Linear Technology |
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1 / 24 page  1 LTC1854/LTC1855/LTC1856 185456fa COM CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 MUXOUT+ MUXOUT– ADC+ ADC– AGND1 CONVST RD SCK SDI DGND SDO BUSY OVDD DVDD AVDD AGND3 AGND2 REFCOMP VREF LTC1854/ LTC1855/ LTC1856 SOFTWARE-PROGRAMMABLE SINGLE-ENDED OR DIFFERENTIAL INPUTS ±10V BIPOLAR INPUT RANGE 10 μF 0.1 μF 10 μF 10 μF 0.1 μF 1 μF 10 μF 3V TO 5V 5V 5V 2.5V 0.1 μF μP CONTROL LINES 0.1 μF 8-Channel, ±10V Input 12-/14-/16-Bit, 100ksps ADC Converters with Shutdown The LTC ®1854/LTC1855/LTC1856 are 8-channel, low power, 12-/14-/16-bit, 100ksps, analog-to-digital con- verters (ADCs). These ADCs operate from a single 5V supply and the 8-channel multiplexer can be programmed for single-ended inputs, pairs of differential inputs, or combinations of both. In addition, all channels are fault protected to ±30V. A fault condition on any channel will not affect the conversion result of the selected channel. An onboard precision reference minimizes external com- ponents. Power dissipation is 40mW at 100ksps and lower in two power shutdown modes (27.5mW in Nap mode and 40 mW in Sleep mode.) DC specifications include ±3LSB INL for the LTC1856, ±1.5LSB INL for the LTC1855 and ±1LSB for the LTC1854. The internal clock is trimmed for 5 ms maximum conver- sion time and the sampling rate is guaranteed at 100ksps. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. ■ Single 5V Supply ■ Sample Rate: 100ksps ■ 8-Channel Multiplexer with ±30V Protection ■ ±10V Bipolar Input Range Single Ended or Differential ■ ±3LSB INL for the LTC1856, ±1.5LSB INL for the LTC1855, ±1LSB INL for the LTC1854 ■ Power Dissipation: 40mW (Typ) ■ SPI/MICROWIRE TM Compatible Serial I/O ■ Power Shutdown: Nap and Sleep ■ SINAD: 87dB (LTC1856) ■ Operates with Internal or External Reference ■ Internal Synchronized Clock ■ 28-Pin SSOP Package 100kHz, 12-Bit/14-/16-Bit Sampling ADC ■ Industrial Process Control ■ Multiplexed Data Acquisition Systems ■ High Speed Data Acquisition for PCs ■ Digital Signal Processing LTC1856 Typical INL Curve DESCRIPTIO FEATURES APPLICATIO S TYPICAL APPLICATIO , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. CODE –32768 0 0.5 1.0 32767 185456 G01 –0.5 –1.0 –2.0 –16384 0 16384 –1.5 2.0 1.5 |
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Similar Description - LTC1854CG-TR |
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