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AD604-02E

  • 描述:技术: 霍尔效应 功能: 全向开关 电源电压: 4.5伏~30伏 最大供电电流: 4.5毫安 供应商设备包装: 8-SOIC 工作温度: -40摄氏度~125摄氏度(TA)
  • 品牌: NVE 公司 (NVE)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1000

数量 单价 合计
1000+ 13.70752 13707.52700
  • 库存: 0
  • 单价: ¥13.70753
  • 数量:
    - +
  • 总计: ¥13,707.53
在线询价

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规格参数

  • 部件状态 可供货
  • 技术 霍尔效应
  • 最大输出电流 20毫安
  • 输出类别 集电极开路
  • 安装类别 表面安装
  • 功能 全向开关
  • 极化 北极,南极
  • 最大供电电流 4.5毫安
  • 特点 -
  • 工作温度 -40摄氏度~125摄氏度(TA)
  • 制造厂商 NVE 公司 (NVE)
  • 传感范围 ±2.5mT Trip, ±1.1mT Release
  • 试验条件 -40摄氏度~125摄氏度
  • 电源电压 4.5伏~30伏
  • 供应商设备包装 8-SOIC
  • 包装/外壳 8-SOIC (0.154", 3.90毫米 Width)

AD604-02E 产品详情

The AD604AN is an ultralow noise, very accurate, dual-channel, linear-in-dB variable gain amplifier (VGA) optimized for time-based variable gain control in ultrasound applications; however, it supports any application requiring low noise, wide bandwidth, variable gain control. Each channel of the AD604AN provides a 300 kΩ input resistance and unipolar gain control for ease of use. User determined gain ranges, gain scaling (dB/V), and dc level shifting of output further optimize performance.

Each channel of the AD604AN utilizes a high performance preamplifier that provides an input referred noise voltage of 0.8 nV/√Hz. The very accurate linear-in-dB response of the AD604AN is achieved with the differential input exponential amplifier (DSX-AMP) architecture. Each of the DSX-AMPs comprise a variable attenuator of 0 dB to 48.36 dB followed by a high speed fixed gain amplifier. The attenuator is a 7-stage R-1.5R ladder network. The attenuation between tap points is 6.908 dB and 48.36 dB for the ladder network.

The equation for the linear-in-dB gain response is

G(dB) = (Gain Scaling (dB/V) × VGN (V))

+ (Preamp Gain (dB) – 19 dB)

Preamplifier gains between 5 and 10 (14 dB and 20 dB) provide overall gain ranges per channel of 0 dB through 48 dB and 6 dB through 54 dB. The two channels of the AD604AN can be cascaded to provide greater levels of gain range by bypassing the second channel’s preamplifier. However, in multiple channel systems, cascading the AD604AN with other devices in the AD60x VGA family that do not include a preamplifier may provide a more efficient solution. The AD604AN provides access to the output of the preamplifier, allowing for external filtering between the preamplifier and the differential attenuator stage.

Note that scale factors up to 40 dB/V are achievable with reduced accuracy for scales above 30 dB/V. The gain scales linearly-in-dB with control voltages of 0.4 V to 2.4 V with the 20 dB/V scale. Below and above this gain control range, the gain begins to deviate from the ideal linear-in-dB control law. The gain control region below 0.1 V is not used for gain control. In fact when the gain control voltage is <50 mV, the amplifier channel is powered down to 1.9 mA.

The AD604AN is available in 24-lead SSOP, SOIC, and PDIP packages and is guaranteed for operation over the −40°C to +85°C temperature range.

Feature

  • Ultralow input noise at maximum gain: 0.80 nV/√Hz, 3.0 pA/√Hz
  • Two independent linear-in-dB channels
  • Absolute gain range per channel programmable: 0 dB to 48 dB (preamp gain = 14 dB)through 6 dB to 54 dB (preamp gain = 20 dB)
  • ±1.0 dB gain accuracy
  • Bandwidth: 40 MHz (−3 dB)
  • 300 kΩ input resistance
  • Variable gain scaling: 20 dB/V through 40 dB/V
  • Stable gain with temperature and supply variations
  • Single-ended unipolar gain control
  • Power shutdown at lower end of gain control
  • Drive ADCs directly

Applications

  • Ultrasound and sonar time gain control
  • High performance AGC systems
  • Signal measurement


(Picture: Pinout)


AD604-02E所属分类:固态开关,AD604-02E 由 NVE 公司 (NVE) 设计生产,可通过久芯网进行购买。AD604-02E价格参考¥13.707527,你可以下载 AD604-02E中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询AD604-02E规格参数、现货库存、封装信息等信息!

NVE 公司 (NVE)

NVE 公司 (NVE)

NVE是一家电子元件制造商,专门从事磁敏感材料与集成电路的结合。这种新型固态磁技术的特点是对磁场的高灵敏度、体积小、功耗低。NVE已将这些技术应用于磁传感器、隔离器和磁阻随机存取存储器(MRAM)。这些...

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