The 7B47 is a thermocouple input module produced by Analog Devices. It can interface, amplify and filter input voltages from a J, K, T, E, R, S, B or N-type thermocouple and output a linear output voltage of either +1 V to +5 V or 0 V to +10 V. All 7B47 series modules are mix-and-match and hot swappable.
The 7B47 is a single‑channel, isolated, linearized thermocouple input module that amplifies and filters voltages from J, K, T, E, R, S, B or N‑type thermocouples. It provides a precision isolated output of either +1 V to +5 V or 0 V to +10 V, with high accuracy and extensive isolation.
The handbook includes functional block diagrams, pin‑out tables, mechanical dimensions, environmental ratings, and detailed electrical specifications such as 1500 V rms common‑mode isolation, 160 dB CMR, and a wide power‑supply range (+14 VDC to +35 VDC). It also lists all model variants and their specific input and output ranges.
| Supported Thermocouple Types | J, K, T, E, R, S, B, N |
|---|---|
| Output Voltage Range | +1 V to +5 V or 0 V to +10 V |
| Typical Accuracy (Span) | ±0.15 % Span (typical) |
| Power‑Supply Range | +14 VDC to +35 VDC |
| Mechanical Dimensions | 1.663" × 2.11" × 0.563" (42.24 mm × 53.6 mm × 14.3 mm) |
The 7B47 supports J, K, T, E, R, S, B, and N‑type thermocouples.
The module provides up to 1500 V rms continuous common‑mode voltage isolation.
It accepts supply voltages from +14 VDC up to +35 VDC.
Typical accuracy is ±0.15 % Span (maximum accuracy up to ±0.38 % Span).