MAX114/MAX118 +5V, 1Msps, 4 & 8-Channel, 8-Bit ADCs with 1μA Power-Down
●General Description
■The MAX114/MAX118 are microprocessor-compatible,8-bit, 4-channel and 8-channel analog-to-digital converters (ADCs). They operate from a single +5V supply and use a half-flash technique to achieve a 660ns conversion time (1Msps). A power-down (PWRDN) pin reduces current consumption typically to 1μA. The devices return from power-down mode to normal operating 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 orSSOP. The 8-channel MAX118 is available in a 28-pin DIP or SSOP. For +3V applications, refer to the MAX113/MAX117 data sheet.
●Features
■Single +5V Supply Operation
■4 (MAX114) or 8 (MAX118) Analog Input Channels
■Low Power: 40mW (operating mode)
▲5μW (power-down mode)
■Total Unadjusted Error ≤1LSB
■Fast Conversion Time: 660ns per Channel
■No External Clock Required
■Internal Track/Hold
■1MHz Full-Power Bandwidth
■Internally Connected 8th Channel Monitors Reference Voltage (MAX118)
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MAX114 、 MAX118 、 MAX114CNG 、 MAX114CAG 、 MAX114C/D 、 MAX114ENG 、 MAX114EAG 、 MAX114MRG 、 MAX118CPI 、 MAX118CAI 、 MAX118C/D 、 MAX118EPI 、 MAX118EAI 、 MAX118MJI |
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[ High-Speed DSP ][ Portable Equipment ] |
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Datasheet |
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Please see the document for details |
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DIP;SSOP;CERDIP |
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English Chinese Chinese and English Japanese |
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8/96 |
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Rev 1 |
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19-1083 |
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411 KB |
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