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> 192 / MAX192BCPP / MAX192 / serial 10-bit adc
192 / MAX192BCPP / MAX192 / serial 10-bit adc
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Please note: This spec sheet covers several different parts.
The MAX192 is a low-cost, 10-bit data-acquisition system that combines an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and ultra-low power consumption. The device operates with a single +5V supply. The analog inputs are software configurable for single-ended and differential (unipolar/bipolar) operation.
The 4-wire serial interface connects directly to SPI™ QSPI™, and Microwire™ devices, without using external logic. A serial strobe output allows direct connection to TMS320 family digital signal processors. The MAX192 uses either the internal clock or an external serialinterface clock to perform successive approximation A/D conversions. The serial interface can operate beyond 4MHz when the internal clock is used. The MAX192 has an internal 4.096V reference with a drift of ±30ppm typical.
A reference-buffer amplifier simplifies gain trim and two sub-LSBs reduce quantization errors.
The MAX192 provides a hardwired
SHDN pin and two software-selectable power-down modes. Accessing the serial interface automatically powers up the device, and the quick turn-on time allows the MAX192 to be shut down between conversions. By powering down between conversions, supply current can be cut to under 10µA at reduced sampling rates.
Battery-Powered Instruments, Battery
8-Channel Single-Ended or 4-Channel Differential Inputs
Low Power: 1.5mA (operating) 2µA (power-down)
Internal Track/Hold, 133kHz Sampling Rate
4-Wire Serial Interface is Compatible with SPI, QSPI, Microwire, and TMS320
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