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MAX118MJI Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX118MJI Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 12 page _______________General Description The MAX114/MAX118 are microprocessor-compatible, 8-bit, 4-channel and 8-channel analog-to-digital con- verters (ADCs). They operate from a single +5V supply and use a half-flash technique to achieve a 660ns con- version time (1Msps). A power-down ( PWRDN) pin reduces current consumption typically to 1µA. The devices return from power-down mode to normal oper- ating mode in less than 200ns, allowing large supply- current reductions in burst-mode applications (in burst mode, the ADC wakes up from a low-power state at specified intervals to sample the analog input signals). Both converters include a track/hold, enabling the ADC to digitize fast analog signals. Microprocessor (µP) interfaces are simplified because the ADC can appear as a memory location or I/O port without external interface logic. The data outputs use latched, three-state buffer circuitry for direct connection to an 8-bit parallel µP data bus or system input port. The MAX114/MAX118 input/reference configuration enables ratiometric operation. The 4-channel MAX114 is available in a 24-pin DIP or SSOP. The 8-channel MAX118 is available in a 28-pin DIP or SSOP. For +3V applications, refer to the MAX113/MAX117 data sheet. ________________________Applications High-Speed DSP Remote Data Acquisition Portable Equipment Communications Systems ____________________________Features o Single +5V Supply Operation o 4 (MAX114) or 8 (MAX118) Analog Input Channels o Low Power: 40mW (operating mode) 5µW (power-down mode) o Total Unadjusted Error ≤1LSB o Fast Conversion Time: 660ns per Channel o No External Clock Required o Internal Track/Hold o 1MHz Full-Power Bandwidth o Internally Connected 8th Channel Monitors Reference Voltage (MAX118) +5V, 1Msps, 4 & 8-Channel, 8-Bit ADCs with 1µA Power-Down ________________________________________________________________ Maxim Integrated Products 1 4-BIT DAC 4-BIT FLASH ADC (4MSBs) 4-BIT FLASH ADC (4LSBs) TIMING AND CONTROL ADDRESS LATCH DECODE REF+ 16 THREE- STATE OUTPUT DRIVERS D7 D6 D5 D4 D3 D2 D1 D0 MUX *IN7 *IN8 Σ REF+ *IN6 *IN5 IN4 IN3 IN2 IN1 A0 A1 A2 REF- PWRDN RD MODE INT WR/RDY CS MAX114/MAX118 * MAX118 ONLY _________________________________________________________Functional Diagram 19-1083; Rev 1; 8/96 PART MAX114CNG MAX114CAG MAX114C/D 0°C to +70°C 0°C to +70°C 0°C to +70°C TEMP. RANGE PIN-PACKAGE 24 Narrow Plastic DIP 24 SSOP Dice* ______________Ordering Information For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 MAX114ENG MAX114EAG MAX114MRG -55°C to +125°C -40°C to +85°C -40°C to +85°C 24 Narrow Plastic DIP 24 SSOP 24 Narrow CERDIP** Ordering Information continued on last page. *Dice are specified at TA = +25°C, DC parameters only. **Contact factory for availability. Pin Configurations appear on last page. |
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