7B40 Rev. 0 is a module launched by AD, which is small, low cost and has a wide output voltage range, suitable for industrial signal conditioning, industrial signal isolation and industrial signal filtering applications.
The 7B40 is a single‑channel signal‑conditioning module that interfaces, amplifies and filters unipolar and bipolar millivolt and voltage inputs, providing a protected precision output of either +1 V to +5 V or 0 V to +10 V. It offers up to 1500 V rms isolation, high common‑mode rejection and a low‑drift input amplifier, and is hot‑swappable within a backplane system.
The handbook includes functional block diagrams, pin‑out tables, mechanical dimensions, electrical specifications, and installation notes for the 7B series, along with model‑specific options and safety cautions.
| Nonlinearity | +0.02% max |
|---|---|
| Accuracy | +0.1% max (typical +0.01%) |
| Isolation Voltage | 1500 V rms |
| Common‑Mode Rejection (CMR) | 110 dB @50/60 Hz |
| Normal‑Mode Rejection (NMR) | 100 dB @50/60 Hz |
| Input Resistance | >1 GΩ |
| Output Noise | 2 mV peak |
| Bandwidth (−3 dB) | 0.1 Hz – 10 Hz |
| Power Supply Voltage | 14‑35 VDC |
| Mechanical Dimensions | 1.663" × 2.11" × 0.563" |
The 7B40 provides 1500 V rms of galvanic transformer‑based isolation.
It can output either +1 V to +5 V or 0 V to +10 V, with custom options possible.
The module operates from a nominal +24 VDC supply and accepts 14‑35 VDC.
The input resistance is greater than 1 GΩ.