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MAX198AEAI Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX198AEAI Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 16 page _______________General Description The MAX196/MAX198 multirange, 12-bit data-acquisi- tion systems (DAS) require only a single +5V supply for operation, yet convert analog signals at their inputs up to ±10V (MAX196) and ±4V (MAX198). These systems provide six analog input channels that are indepen- dently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, and 0V to +5V for the MAX196; ±VREF, ±VREF/2, 0V to +VREF, and 0V to +VREF/2 for the MAX198. This range switching increases the effec- tive dynamic range to 14 bits and provides the flexibility to interface ±12V, ±15V, and 4mA to 20mA powered sensors to a single +5V system. In addition, these con- verters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, 100ksps throughput rate, soft- ware-selectable internal/external clock, internal/external acquisition control, 12-bit parallel interface, and internal 4.096V or external reference. Two programmable power-down modes (STBYPD, FULLPD) provide low-current shutdown between con- versions. In STBYPD mode, the reference buffer remains active, eliminating start-up delays. The MAX196/MAX198 employ a standard microproces- sor (µP) interface. A three-state data I/O port is config- ured to operate with 16-bit data buses, and data- access and bus-release timing specifications are com- patible with most popular µPs. All logic inputs and out- puts are TTL/CMOS compatible. These devices are available in 28-pin DIP, wide SO, SSOP (55% smaller in area than wide SO), and ceramic SB packages. For 8+4 bus interface, see the MAX197 and the MAX199 data sheets. An evaluation kit will be available after December 1995 (MAX196EVKIT-DIP). ________________________Applications Industrial-Control Systems Robotics Data-Acquisition Systems Automatic Testing Systems Medical Instruments Telecommunications ____________________________Features o 12-Bit Resolution, 1/2LSB Linearity o Single +5V Supply Operation o Software-Selectable Input Ranges: ±10V, ±5V, 0V to +10V, 0V to +5V (MAX196) ±VREF, ±VREF/2, 0V to +VREF, 0V to +VREF/2 (MAX198) o Internal 4.096V or External Reference o Fault-Protected Input Multiplexer o 6 Analog Input Channels o 6µs Conversion Time, 100ksps Sampling Rate o Internal or External Acquisition Control o Two Power-Down Modes o Internal or External Clock Multirange, Single +5V, 12-Bit DAS with 12-Bit Bus Interface ________________________________________________________________ Maxim Integrated Products 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DGND VDD WR RD INT REF AGND REFADJ CH5 CH4 CH3 CH2 CH1 CH0 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 CS CLK DIP/SO/SSOP/Ceramic SB TOP VIEW MAX196 MAX198 __________________Pin Configuration Call toll free 1-800-722-8266 for free samples or literature. 19-0435; Rev 0; 9/95 PART MAX196ACNI MAX196BCNI MAX196ACWI 0°C to +70°C 0°C to +70°C 0°C to +70°C TEMP. RANGE PIN-PACKAGE 28 Narrow Plastic DIP 28 Narrow Plastic DIP 28 Wide SO EVALUATION KIT AVAILABLE ______________Ordering Information MAX196BCWI 0°C to +70°C 28 Wide SO Functional Diagram appears at end of data sheet. Ordering Information continued at end of data sheet. MAX196ACAI 0°C to +70°C 28 SSOP MAX196BCAI 0°C to +70°C 28 SSOP |
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