This document is about the Analog Devices 7B14 series signal conditioner product introduction. The series products feature small size, low cost and a wide output voltage range for a variety of applications, including process control and factory-floor environments. The single-channel 7B modules accept inputs from a range of transducers and are fully rated over the extended -40oC to +85oC industrial temperature range.
The 7B14 series from Analog Devices is a low‑cost, single‑channel signal‑conditioning module that amplifies, filters, protects, and linearizes input voltages from a wide variety of two‑ and three‑wire platinum, copper, and nickel RTDs. It delivers a precision output of either +1 V to +5 V or 0 V to +10 V, linear with temperature, and can be hot‑swapped without disrupting system power.
Modules are available in multiple input and output configurations, support up to 1500 V rms common‑mode isolation, and feature a maximum non‑linearity of +0.02 % with an accuracy of +0.1 %. The backplane can host up to 16 modules, each with a universal pin‑out and gold‑plated sockets for reliable connections. Environmental ratings cover –40 °C to +85 °C operation.
| Input Temperature Range | -100 °C to +100 °C |
|---|---|
| Output Voltage Range | +1 V to +5 V or 0 V to +10 V |
| Maximum Nonlinearity | +0.02 % |
| Maximum Accuracy | +0.1 % |
| Supply Voltage Range | +14 VDC to +35 VDC |
| Common‑Mode Isolation Voltage | 1500 V rms continuous |
| Input Protection Voltage | +30 V DC continuous |
| Physical Dimensions | 1.663" × 2.11" × 0.563" |
| Operating Temperature Range | -40 °C to +85 °C |
| Bandwidth | 10 Hz to 100 Hz |
| Output Noise | 1 mV peak |
A 250 µA excitation current is provided for platinum and nickel RTDs.
Up to 16 input or output modules can be installed on a backplane.
The module accepts supply voltages from +14 VDC up to +35 VDC.
The 7B14 modules have a maximum nonlinearity of +0.02 %.