LTC1854IG#PBF

LTC®1854 is an 8-channel, low power, 12bit, 100ksps, analog-to-digital converter (ADC). This ADC operates 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 on-board precision reference minimizes external components. Power dissipation is 40mW at 100ksps and lower in two power shutdown modes (27.5mW in nap mode and 40µW in sleep mode). The internal clock is trimmed for 5µs maximum conversion time and the sampling rate is guaranteed at 100ksps. A separate convert start input and data ready signal (active-low BUSY) ease connections to FIFOs, DSPs and microprocessors. Typical applications are industrial process control, multiplexed data acquisition systems, high speed data acquisition for PCs, digital signal processing.

• 8-channel multiplexer with ±30V protection, ±10V bipolar input range
• SPI/MICROWIRE™ compatible serial I/O
• Operates with internal or external reference, internal synchronized clock
• Input common mode rejection ratio is 96dB
• VREF output voltage range from 2.475 to 2.525V (IOUT=0, TA=25°C)
• VREF output temperature coefficient is ±10ppm/°C typ (IOUT=0)
• Output source current is -10mA (VOUT=0V)
• Output sink current is 10mA (VOUT=VDD)
• 28-lead plastic SSOP package
• Operating temperature range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party