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参数资料
| 型号： | HI3-0539-5 |
| 厂商： | HARRIS SEMICONDUCTOR |
| 元件分类： | 运动控制电子 |
| 英文描述： | RESISTOR POWER 150 OHM 8W 5% |
| 中文描述： | 4-CHANNEL, DIFFERENTIAL MULTIPLEXER, PDIP16 |
| 文件页数： | 9/11页 |
| 文件大小： | 189K |
| 代理商： | HI3-0539-5 |
9
Provide Path For I
BIAS
The input bias current for any DC-coupled amplifier must
have an external path back to the amplifier’s power supply.
No such path exists in Figure 8A, and consequently the
amplifier output will remain in saturation.
A single large resistor (1M
to 10M
) from either signal line
to power supply common will provide the required path, but a
resistor on each line is necessary to preserve accuracy. A
single pair of these bias current resistors on the HI-539
output may be used if their loading effect can be tolerated
(each forms a voltage divider with r
ON
). Otherwise, a resistor
pair on each input channel of the multiplexer is required.
The use of bias current resistors is acceptable only if one is
confident that the sum of signal plus common-mode voltage
will remain within the input range of the multiplexer/amplifier
combination.
Another solution is to simply run a third wire from the low
side of the signal source, as in Figure 8B. This wire assures
a low common-mode voltage as well as providing the path
for bias currents. Making the connection near the multiplexer
will save wire, but it will also unbalance the line and reduce
the amplifier's common-mode rejection.
Differential Offset,
V
OS
There are two major sources of
V
OS
. That part due to the
expression (r
ON
l
D(ON)
+ l
D(ON)
r
ON
) becomes significant
with increasing temperature, as shown in the Electrical
Specifications tables. The other source of offset is the
thermocouple effects due to dissimilar materials in the signal
path. These include silicon, aluminum, tin, nickel-iron and
(often) gold, just to exit the package.
For the thermocouple effects in the package alone, the
constraint on
V
OS
may be stated in terms of a limit on the
difference in temperature for package pins leading to any
channel of the Hl-539. For example, a difference of 0.13
o
C
produces a 5
μ
V offset. Obviously, this
T effect can
dominate the
V
OS
parameter at any temperature unless
care is taken in mounting the Hl-539 package.
Temperature gradients across the Hl-539 package should be
held to a minimum in critical applications. Locate the Hl-539
far from heat producing components, with any air currents
flowing lengthwise across the package.
TABLE 1.
WIRE GAGE
EQUIVALENT WIDTH OF
P.C. CONDUCTOR
(2 oz. Cu)
DC RESISTANCE
PER FOOT
INDUCTANCE PER
FOOT
IMPEDANCE PER FOOT
60Hz
10kHz
18
0.47”
0.0064
0.36
μ
H
0.0064
0.0235
20
0.30”
0.0102
0.37
μ
H
0.0102
0.0254
22
0.19”
0.0161
0.37
μ
H
0.0161
0.0288
24
0.12”
0.0257
0.40
μ
H
0.0257
0.0345
26
0.075”
0.041
0.42
μ
H
0.041
0.0488
28
0.047”
0.066
0.45
μ
H
0.066
0.0718
30
0.029”
0.105
0.49
μ
H
0.105
0.110
32
0.018”
0.168
0.53
μ
H
0.168
0.171
HI-539
相关PDF资料 |
PDF描述 |
|---|---|
| HI4P0539-5 | Precision, 4-Channel, Low-Level, Differential Multiplexer |
| HI1-0539-5 | Precision, 4-Channel, Low-Level, Differential Multiplexer |
| HI1-0539-8 | Precision, 4-Channel, Low-Level, Differential Multiplexer |
| HI-539 | Precision, 4-Channel, Low-Level, Differential Multiplexer |
| HI3-0546-5 | Single 16 and 8, Differential 8-Channel and 4-Channel CMOS Analog MUXs with Active Overvoltage Protection |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HI3-0546-5 | 功能描述:IC MULTIPLEXER 16X1 28DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:48 系列:- 功能:开关 电路:4 x SPST - NO 导通状态电阻:100 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| HI3-0546-5Z | 功能描述:多路器开关 IC MUX 16:1 OVP COM RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| HI3-0546-9 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HI3-0547-5 | 功能描述:IC MULTIPLEXER DUAL 8X1 28DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:48 系列:- 功能:开关 电路:4 x SPST - NO 导通状态电阻:100 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| HI3-0547-5Z | 功能描述:多路器开关 IC MUX DIFF 8:1 OVP COM RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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