Datasheet > 3B47-K-05

3B47-K-05

更新时间： 2024-02-07 21:54:55

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		/
页数	文件大小	规格书
9页	1030K
描述
SPECIALTY ANALOG CIRCUIT, XMA

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技术参数
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3B47-K-05 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.66
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	R-XXMA-X
湿度敏感等级：	NOT SPECIFIED	负电源电压最大值（Vsup）：	-11.5 V
负电源电压最小值（Vsup）：	-16.5 V	标称负供电电压 (Vsup)：	-15 V
功能数量：	1	最高工作温度：	85 °C
最低工作温度：	-25 °C	封装主体材料：	UNSPECIFIED
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
峰值回流温度（摄氏度）：	NOT SPECIFIED	最大供电电压 (Vsup)：	16.5 V
最小供电电压 (Vsup)：	11.5 V	标称供电电压 (Vsup)：	15 V
表面贴装：	NO	温度等级：	OTHER
端子面层：	NOT SPECIFIED	端子形式：	UNSPECIFIED
端子位置：	UNSPECIFIED	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

3B47-K-05 数据手册

3B47

GENERAL DESCRIPTION

CUSTOM). Zero suppression can exceed 100% of the input

The 3B47 is a single-channel isolated thermocouple signal-

conditioning module which interfaces, amplifies, isolates,

protects, linearizes and filters analog input voltages from a J, K,

T, E, R, S or B-type thermocouple. The thermocouple input

signal is internally linearized to provide an output voltage which

is linear with temperature, High accuracy internal cold junction

compensation and a predictable upscale open circuit indication

provide a complete signal conditioning solution. To accurately

measure low level signals in electrically noisy environments,

+1500 V peak of galvanic transformer-based isolation with a

common mode rejection (CMR) of 160 dB @ 50/60 Hz and a

normal mode rejection (NMR) of 60 dB @ 50/60 Hz are

provided. This plug-in, mix-and-match, hot-swappable module

is easily field calibrated via front-panel zero and span

adjustments.

range. This enables suppression of a zero-scale input value

many times larger than the total span for precise expanded-

scale measurements of a selection portion of an input signal.

The differential input circuit on the field side is fully floating,

eliminating the need for any input grounding. Signal isolation

by transformer coupling uses a proprietary modulation

technique for linear, stable and reliable performance. A

demodulator on the computer side of the signal transformer

recovers the original signal which is then filtered and buffered

to provide a low-noise, low-impedance output voltage.

Internal cold-junction compensation largely corrects errors

arising from parasitic thermocouples formed by thermocouple

connection to the input screw terminals, providing an accuracy

of +0.5^oC over the +5^oC to +45^oC ambient temperature range.

The module generates a predictable upscale signal to indicate an

open thermocouple; for a downscale response, connect a 47

MΩ, 0.25 Watt resistor across screw terminals 2 and 4 on the 3B

Series backplane.

A chopper-stabilized low-drift input amplifier assures stable

long-term stability. At the amplifier input, a zero-scale input

voltage is subtracted from the input signal to set the zero-scale

value. For user convenience, the zero and span optionally can be

factory configured to meet custom needs (Model 3B37-

Figure 2

Rev. 0 | Page 2 of 8

1 234 5 6 7...9

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3B47-S-10	ROCHESTER	SPECIALTY ANALOG CIRCUIT, XMA	获取价格
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