- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362209 > ALD118 PDF資料下載
參數(shù)資料
| 型號： | ALD118 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 209K |
| 代理商： | ALD118 |
9
ALD1000
THE INSTRUMENTATION AMPLIFIERS (IA)
The ALD1000 includes two, general purpose, uncommitted,
3-op amp, instrumentation amplifiers (see Figure 1). The
two IAs are connected to the common power supply and
operate at full supply voltage. They share the same analog
common reference. Otherwise they are configured indepen-
dently for maximum flexibility.
The instrumentation amplifier senses the feedback signal,
reduces any common-mode component, and scales it to the
level required.
A more comprehensive discussion of the instrumentation
amplifiers follows in a later section.
ALD1000 LOGIC
The logic inputs used for the SWOP amp select and the
XTR disable functions are simple, differential pair com-
parators as shown in Figure 2.
The logic outputs are open collector NPN transistors with
their emitters at ground (pin 1).
VOLTAGE ERROR INDICATION
The V
ERR
error signal at pin 28 triggers when the voltage at
C (pin 26) exceeds the Positive Overvoltage Sense or the
Negative Overvoltage Sense (see SPECIFICATIONS) in-
ternal thresholds. When external transistors are used with-
out connecting them to C, as shown in Figure 7, the load
voltage cannot be detected. The logic signal will generally
trigger to an error state (low). However, consider it indeter-
minate under these conditions.
INSTRUMENTATION
AMPLIFIERS
SETTING THE GAIN
The IA gain is set by connecting a single, external resistor,
Rg in Figure 3, between the gain set pins.
INPUT PROTECTION
The inputs of the ALD1000 instrumentation amplifiers are
individually protected against over-voltage. Internal cir-
cuitry on each input provides low series impedance under
normal signal conditions. If the input is overloaded, the
protection circuitry limits the input current to a safe value of
approximately 1ma to 5ma. Refer to the typical perfor-
mance curve “Input Bias Current vs Input Voltage.” The
inputs are protected even if the power supplies are discon-
nected or turned off.
IA INPUT OVERLOAD AND
INPUT COMMON-MODE RANGE
The linear voltage range of the input circuitry of the
ALD1000 instrumentation amplifiers is from approximately
0.6V below the positive supply to 1V above the negative
supply. However, the output swing of the input amplifiers
Internal
Logic
+V
S
–V
S
Internal Logic
Threshold
Logic
Input
+
FIGURE 2. Simplified Diagram of the Internal ALD1000
Logic Input Circuitry.
G
=
1
+
50k
R
G
FIGURE 3. Simplified Schematic of the Instrumentation Amplifiers. Resistor RG Controls the Gain.
40k
40k
40k
25k
25k
A
1
A
2
A
3
Over-Voltage
Protection
Over-Voltage
Protection
40k
V
IN
–
V
IN
+
R
G
V
OUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ALD124 | |
| ALD14H | |
| ALD106 | |
| ALD109 | |
| ALD1504DA | Analog Timer Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ALD118T | 制造商:Panasonic Electric Works 功能描述: |
| ALD118W | 功能描述:通用繼電器 1 Form A 3A 277VAC 3A 30VDC 18V RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值:150 A 線圈電壓:24 VDC 線圈電阻:144 Ohms 線圈電流:167 mA 切換電壓:400 V 安裝風(fēng)格:Chassis 觸點(diǎn)材料: |
| ALD11G48-6L | 功能描述:DC/DC轉(zhuǎn)換器 2.5V @ 11A POS 3.7mm RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| ALD11G48-L | 功能描述:DC/DC轉(zhuǎn)換器 2.5V @ 11A POS 5mm RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| ALD11G48N-6L | 功能描述:DC/DC轉(zhuǎn)換器 2.5V @ 11A Neg 5mm RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。