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参数资料
| 型号： | 178 |
| 元件分类： | 运算放大器 |
| 英文描述： | OP-AMP |
| 文件页数： | 1/5页 |
| 文件大小： | 238K |
| 代理商： | 178 |
A
1
http://www.calex.com
2401 Stanwell Drive
Concord, CA 94520-4841
(510) 687-4411 Fax (510) 687-3333
CALEX
FaxFACTS:
320
1997
FIGURE 1. Basic Bridge Amplifier
FIGURE 3. Thermocouple Amplifier
FIGURE 2. High Source Impedance Amplifier
Features*
n Drifts to <0.25V/°C
n Input Impedance >100 M
n CMR: 120 dB @ G = 1000
n Gain Linearity of ±.005%
*The key features of this amplifier series, listed above, do not
necessarily apply to all units. Please check individual unit
specifications.
Description
The 176 (all versions) and the 178 are general purpose
differential input DC amplifiers. The best all-around unit is the
178. It features premium performance over a gain range of 1
to 1,000. With adjustable CMR, gain, and input and output
offsets it truly approaches the ideal instrumentation amplifier.
Applications
Below are three typical applications showing the versatility of
this instrumentation amplifier series.
Figure 1 shows the basic connections for a bridge amplifier.
The bridge can be a transducer, strain gage or a load cell. The
amplifier rejects the common mode voltage and noise of the
bridge and only amplifies the difference between the + and -
inputs. In most cases the bridge impedance is less than 1 k
which would make the 176 ideal.
Figure 2 shows a single ended application where the input
signal has a high source impedance. Since the 178 has
extremely high input impedance and low bias current, it would
be the choice. Better balance and drift can be achieved by
matching the source impedance with a resistor of equal value
from the - input to common.
Figure 3 shows a thermocouple amplifier. By utilizing the two
resistors on the inputs, the high common mode rejection of
the amplifiers can be used to remove 60 Hz noise on the lines
or external voltage floating on the input lines. The
thermocouples can float to ±10 Volts. Since thermocouples
are low impedance devices, the 176 is recommended.
Note: With either the 176 or 178 Amplifier it is required that the
source common be electrically tied to signal common and the
power source common. Both amplifiers are bipolar direct
coupled and require a return path for the input signal current
for stable operation.
Models 176 & 178 DC Differential Amplifiers
相关PDF资料 |
PDF描述 |
|---|---|
| 1782-97H | 1 ELEMENT, 0.13 uH, PHENOLIC-CORE, GENERAL PURPOSE INDUCTOR |
| 1782-97F | 1 ELEMENT, 0.13 uH, PHENOLIC-CORE, GENERAL PURPOSE INDUCTOR |
| 1782-95F | 1 ELEMENT, 0.11 uH, PHENOLIC-CORE, GENERAL PURPOSE INDUCTOR |
| 1782-91H | 1 ELEMENT, 910 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR |
| 1782-91F | 1 ELEMENT, 910 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 178.0001 | 功能描述:CONNECTOR CABLE OF2 DIN72581/3C RoHS:否 类别:过电压，电流，温度装置 >> 保险丝座 系列:- 标准包装:100 系列:345 类型:支座 保险丝规格:2AG，5/8" L x 5/17" 直径（15.8mm x 7.4mm） 电路数:1 安装类型:面板安装 端接类型:快速连接 - 0.250"（6.3mm） 电压:250V 额定电流:10A 材质:铜合金，镀锡 其它名称:3452QS8H3452QS8 |
| 178.000100 | 制造商:Littelfuse 功能描述:CONN CABLE OF2 ATO DIN72581 3C 制造商:Littelfuse 功能描述:OF2 ATO DIN 72581/3C Connector Cable |
| 178.0002 | 功能描述:CONNECTOR CABLE OF2 DIN72581/3C RoHS:否 类别:过电压，电流，温度装置 >> 保险丝座 系列:- 标准包装:100 系列:345 类型:支座 保险丝规格:2AG，5/8" L x 5/17" 直径（15.8mm x 7.4mm） 电路数:1 安装类型:面板安装 端接类型:快速连接 - 0.250"（6.3mm） 电压:250V 额定电流:10A 材质:铜合金，镀锡 其它名称:3452QS8H3452QS8 |
| 178.000200 | 制造商:Littelfuse 功能描述:CONN CABLE OF2 ATO DIN72581 3C 制造商:Littelfuse 功能描述:OF2 ATO DIN 72581/3C Connector Cable |
| 178.4205.0002 | 功能描述:熔丝座 - RoHS:否 制造商:Littelfuse 产品: 电流额定值:30 A 电压额定值:1000 VDC 极数:1 系列: 安装风格:DIN Rail 端接类型: 轴类型: 工作温度范围: |
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