7B30-08-1

更新时间： 2024-02-12 22:33:26

品牌	Logo	应用领域
亚德诺 - ADI		模拟IC 信号电路
页数	文件大小	规格书
8页	530K
描述
Isolated, Voltage or Current Input

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7B30-08-1 技术参数

7B30

GENERAL DESCRIPTION

up to 120 V rms line voltage. A one-pole 3 Hz filter

The 7B30 is a single-channel signal conditioning module that

interfaces, amplifies and filters unipolar and bipolar milli-vilt

and voltage inputs and provides a protected precision output of

either +1 V to +5 V or 0V to +10 V.

preconditions the input signal prior to amplification by a low

drift input amplifier. Amplitude modulation is used to

implement transformer isolation (1500 V rms input-t-output

and power). Isolated front-end circuitry power is supplied by a

DC/DC converter. The output section contains a two-pole

output filter and subsequent buffer ensures that a low noise, low

impedance (<1Ω) signal is available at the output to drive loads

of 2 kΩ minimum.

To measure a process current input, a plug-in 250W current

sensing resistor, Model AC1391, may be installed directly on the

7B backplane, using available pin sockets. The external current

sense resistor allows the current loop to be maintained even

when the module is removed from the backplane. Model 7B30

features a nonlinearity of +0.02% maximum and an accuracy of

+0.1% maximum (+0.01% typical). To accurately measure low

level signals in electrically noisy environments, 1500 V rms 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. Rated to

operate with a nominal +24 VDC supply, Model 7B30 is nix-

and-match and hot-swappable with other 7B Series input

modules, so it can be inserted or removed from any socket in

the same backplane without disturbing system power.

The floating differential input of Model 7B30 is fully protected

Figure 2

Rev. 0 | Page 2 of 8

123 4 5 6 7 8

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型号	品牌	描述	获取价格	数据表
7B30-08-2	ADI	Isolated, Voltage or Current Input	获取价格
7B31	ADI	Isolated Voltage Input	获取价格
7B31-01-1	ADI	Isolated Voltage Input	获取价格
7B31-01-1	ROCHESTER	SPECIALTY ANALOG CIRCUIT, SMA6, PACKAGE-6	获取价格
7B31-01-2	ADI	Isolated Voltage Input	获取价格
7B31-02-1	ADI	Isolated Voltage Input	获取价格