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MAX192BEWP Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX192BEWP Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 24 page ________________General Description 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 serial- interface 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 typi- cal. 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. The MAX192 is available in 20-pin DIP and SO pack- ages, and in a shrink-small-outline package (SSOP) that occupies 30% less area than an 8-pin DIP. The data format provides hardware and software compati- bility with the MAX186/MAX188. For anti-aliasing filters, consult the data sheets for the MAX291–MAX297. ________________________Applications Automotive Pen-Entry Systems Consumer Electronics Portable Data Logging Robotics Battery-Powered Instruments, Battery Management Medical Instruments ____________________________Features o 8-Channel Single-Ended or 4-Channel Differential Inputs o Single +5V Operation o Low Power: 1.5mA (operating) 2µA (power-down) o Internal Track/Hold, 133kHz Sampling Rate o Internal 4.096V Reference o 4-Wire Serial Interface is Compatible with SPI, QSPI, Microwire, and TMS320 o 20-Pin DIP, SO, SSOP Packages o Pin-Compatible 12-Bit Upgrade (MAX186/MAX188) _______________Ordering Information Low-Power, 8-Channel, Serial 10-Bit ADC ________________________________________________________________ Maxim Integrated Products 1 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 TOP VIEW DIP/SO/SSOP VDD SCLK CS DIN SSTRB DOUT DGND AGND REFADJ VREF SHDN AGND CH7 CH6 CH5 CH4 CH3 CH2 CH1 CH0 MAX192 ___________________Pin Configuration SPI and QSPI are trademarks of Motorola Corp. Microwire is a trademark of National Semiconductor Corp. 19-0247; Rev. 1; 4/97 PART TEMP. RANGE MAX192ACPP 0°C to +70°C MAX192BCPP 0°C to +70°C MAX192ACWP 0°C to +70°C 20 Wide SO 20 Plastic DIP 20 Plastic DIP PIN-PACKAGE MAX192BCWP 0°C to +70°C 20 Wide SO MAX192ACAP 0°C to +70°C 20 SSOP MAX192BCAP 0°C to +70°C 20 SSOP ±1/2 ±1 ±1/2 INL (LSB) ±1 ±1/2 ±1 MAX192AEPP -40°C to +85°C 20 Plastic DIP ±1/2 MAX192BEPP -40°C to +85°C 20 Plastic DIP ±1 MAX192AEWP -40°C to +85°C 20 Wide SO ±1/2 MAX192BEWP -40°C to +85°C 20 Wide SO ±1 MAX192AEAP -40°C to +85°C 20 SSOP ±1/2 MAX192BEAP -40°C to +85°C 20 SSOP ±1 MAX192AMJP -55°C to +125°C 20 CERDIP ±1/2 MAX192BMJP -55°C to +125°C 20 CERDIP ±1 See last page for Typical Operating Circuit. For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. |
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