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MAX114, MAX118
1µA 전원 차단 기능을 갖춘 +5V, 1Msps, 4/8채널, 8비트 ADC

병렬 인터페이스를 가진 저전력+5V 8비트 ADC


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전체 데이터 시트 (PDF, 112kB)
English Download this datasheet in PDF format다운로드
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 (active-low 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 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.

주요기능   애플리케이션/용도
  • 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)

 
  • 통신 시스템
  • 고속 DSP
  • 휴대용 기기
  • 원격 데이터 수집

    Key Specifications:   Precision ADCs (< 5Msps)
    Part Number ADC Resolution (Bits) Input Channels Conv. Rate (ksps) Max. Conv. Time (µs) Data Bus (Bits) Ref. (V) Input Range (V) Diff. In Supply Voltage (V) Typ. Supply Current (mA) Typ. Power (mW) Standby Mode Package Price**
    MAX114  8 4 1000 0.66 µP/8 Ext. ±2.5
    5
    No 5 8 40 No CDIP(N)/24
    PDIP(N)/24
    SSOP/24
    $3.30 @ 1k
    MAX118  8 CDIP(W)/28
    PDIP(W)/28
    SSOP/28
    $3.40 @ 1k
    See All Precision ADCs (< 5Msps) (375)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    문서 레퍼런스 19-1083; 개정판 1; 1996-08-01
    이 페이지는 최근에 변경됨: 2007-07-18


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