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參數(shù)資料
| 型號(hào)： | MAX5018 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 電可擦除可編程邏輯器件 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 142K |
| 代理商： | MAX5018 |
M
This device also has two analog ground pins (V
CC
). Tie
both ground pins to the analog ground plane. All power
and ground pins must be connected in any application.
If a +5V power source is required, the V
CC
ground pins
become the positive supply pins, while the V
EE
supply
pins become the ground pins. The relative polarities of
the other input and output voltages must be main-
tained.
Referenc e Considerations
The MAX5018 has two reference inputs (Ref+ and Ref-).
The input pins are connected to the inverting and non-
inverting inputs of an internal amplifier that serves as a
reference buffer amplifier.
The buffer amplifier’s output is the reference for the cur-
rent sinks. The amplifier feedback loop is connected
around one of the current sinks for better accuracy.
(See Figure 3.)
Since the analog output currents are proportional to the
digital input data and I
Set
, full-scale output can be
adjusted by varying the reference current. I
Set
is con-
trolled through the MAX5018’s Ref+ input. Figure 1
shows the method and the necessary equations for set-
ting I
Set
. The MAX5018 uses an external negative-
voltage reference. The external reference must be
stable to achieve a satisfactory output, and Ref- should
be driven through a resistor to minimize offsets caused
by bias current. To change the full-scale output, vary
the value for I
Set
with the 500
trimmer. A double 50
load (25
) can be driven if I
Set
is increased by 50% for
doubly terminated 75
video applications.
8-Bit, High-S peed DAC
6
_______________________________________________________________________________________
Figure 1. Typical Interface Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5018AIPG | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Bit, High-Speed DAC |
| MAX5018BIPG | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Bit, High-Speed DAC |
| MAX5019 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Current-Mode PWM Controllers with Integrated Startup Circuit |
| MAX5019CSA | 功能描述:電流型 PWM 控制器 w/Integrated Startup RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5019CSA+ | 功能描述:電流型 PWM 控制器 w/Integrated Startup RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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