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+5V、1Msps、4及8通道、8位ADC,带有1µA关断模式

低功耗、+5V、8位ADC,并行接口

产品详情

主要特征

应用/用途

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 8
Conv. Rate (ksps) (max) 1000
Data Bus µP/8
ADC Architecture Flash
Diff/S.E. Input S.E. Only
External VREF (V) (min) 0
External VREF (V) (max) 5
Unipolar VIN (V) (max) 5
Package/Pins PDIP/28
SSOP/28
Budgetary
Price (See Notes)
5.52
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简化框图

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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 8
Conv. Rate (ksps) (max) 1000
Data Bus µP/8
ADC Architecture Flash
Diff/S.E. Input S.E. Only
External VREF (V) (min) 0
External VREF (V) (max) 5
Unipolar VIN (V) (max) 5
Package/Pins PDIP/28
SSOP/28
Budgetary
Price (See Notes)
5.52

主要特征

  • 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)

应用/用途

  • 通信系统
  • 高速DSP
  • 便携式设备
  • 远端数据采集

描述

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.

简化框图

MAX114、MAX118:功能框图 MAX114、MAX118:功能框图 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心