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2x4通道、同时采样、12位ADC

产品详情

主要特征

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 116
Data Bus µP/12
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 2.5
External VREF (V) (min) 2.4
External VREF (V) (max) 2.6
Bipolar VIN (±V) (max) 5
INL (±LSB) 0.6
Package/Pins SSOP/36
Budgetary
Price (See Notes)
12.53
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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 116
Data Bus µP/12
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 2.5
External VREF (V) (min) 2.4
External VREF (V) (max) 2.6
Bipolar VIN (±V) (max) 5
INL (±LSB) 0.6
Package/Pins SSOP/36
Budgetary
Price (See Notes)
12.53

主要特征

  • Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (Eight Single-Ended Inputs Total)
  • 2µs Conversion Time per Channel
  • Throughput:
    • 390ksps (1 Channel)
    • 218ksps (2 Channels)
    • 152ksps (3 Channels)
    • 116ksps (4 Channels)
  • Input Range: ±5V (MAX115)
    • ±2.5V (MAX116)
  • Fault-Protected Input Multiplexer (±17V)
  • Internal +2.5V or External Reference Operation
  • Programmable On-Board Sequencer
  • High-Speed Parallel DSP Interface
  • Internal 10MHz Clock

应用/用途

  • 水电气表自动抄表
  • 汽车ABS
  • 工业传感器发送器/变送器
  • 电机及运动控制
  • 可编程逻辑控制器

描述

The MAX115/MAX116 are high-speed, multichannel, 12-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 12-bit, 2µs, successive-approximation analog-to-digital converter (ADC), a +2.5V reference, a buffered reference input, and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX115/MAX116 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V. A fault condition on any channel will not damage the IC. Available input ranges are ±5V (MAX115) and ±2.5V (MAX116).

The parallel interface's data access and bus release timing specifications are compatible with most popular digital signal processors and 16-bit/32-bit microprocessors. The MAX115/MAX116 conversion results can be accessed without resorting to wait-states.

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MAX115、MAX116:典型工作电路 MAX115、MAX116:典型工作电路 Zoom icon

Technical Docs

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在Maxim的知识库中搜索技术问题的答案

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