7B47-B-10-1 datasheet(4/8 Pages) AD

Part #	7B47-B-10-1

Description	Isolated, Linearized Thermocouple Input

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Manufacturer	AD [Analog Devices]

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7B47

Rev. 0 | Page 4 of 8

7B47 Specifications

(typical @ +23°C ±5°C and Vs = +24 V dc)

Description

Model 7B47

Input Ranges

Thermocouple Types

J, K, T, E, R, S, B, N

Standard Temperature Ranges

Refer to Model Table

Custom Ranges

Not Available*

Output Range Options (RL > 2 kΩ)

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

Accuracy1

Initial @ +25°C

Refer to Model Table

Input Offset vs. Temperature

±0.5 µV/°C

Zero Suppression vs. Temperature

±0.005% (Vz)

3/°C

Span vs. Temperature

±40 ppm/°C

Output Offset vs. Temperature

±0.002% Span/°C

Cold Junction Compensation

Accuracy4, over +5°C to +45°C ambient

±1.0°C, maximum

Input Bias Current

+25 nA

Input Resistance

Power ON

10 M

Ω

Power OFF

30 k

Ω, minimum

Output Noise

5 MHz Bandwidth

7 mV peak

10 Hz to 100 kHz Bandwidth

1 mV rms

0.1 Hz to 10 Hz Bandwidth

0.5 µV peak

Bandwidth, -3 dB

3 Hz

Output Rise Time, 10% to 90% Span

150 ms

Common-Mode Voltage (CMV)

Input-to-Output and Power

1500 V rms, continuous

Common Mode Rejection (CMR)

Input-to-Output and Power @ 50/60 Hz

160 dB

Normal Mode Rejection @ 50/60 Hz

60 dB

Input Protection

120 V rms, continuous

±35 V dc, continuous

Input Transient Protection

ANSI/IEEE C376.90.1-1989

IEEE-STD 472

IEC 255-4, Class II

Output Resistance

< 1

Ω

Voltage Output Protection

Continuous Short to Ground

Power Supply

Voltage Range, Operating

+14 V dc to +35 V dc

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