Key facts
- Brand
- Analog Devices
- Model
- AD8218
- Industry
- Industrial
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2012-05-04
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Analog Devices AD8218 Current Shunt Monitor Datasheet
The AD8218 current shunt monitor provides a fixed gain of 20 V/V, zero‑drift performance, and a buffered output suitable for high‑voltage applications. It operates from a common‑mode voltage of 4 V to 80 V and supports bidirectional current sensing up to ±250 mV differential input.
The device is offered in an 8‑lead MSOP package and includes an internal 80 mV reference that can be enabled via the ENB pin. Typical specifications include +100 nV/°C offset drift, 110 dB CMRR, and a 450 kHz small‑signal bandwidth. Absolute maximum ratings allow up to 85 V input and indefinite output short‑circuit duration.
Analog Devices AD8218 specifications
| Gain | 20 V/V |
|---|---|
| Gain Accuracy (typical) | ±0.1 % at 20 V/V |
| Gain Temperature Coefficient | +5 ppm/°C |
| Common‑Mode Input Voltage Range | 4 V to 80 V |
| Differential Input Voltage Range | 0 mV to 250 mV |
| CMRR (typical) | 110 dB |
| Output Voltage Range | 0.01 V to Vs‑0.1 V |
| Small‑Signal Bandwidth (‑3 dB) | 450 kHz |
Source: Analog Devices AD8218 Current Shunt Monitor Datasheet
All Analog Devices AD8218 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the fixed gain of the AD8218?
The AD8218 has a fixed gain of 20 V/V.
What is the input common‑mode voltage range?
The device accepts a common‑mode voltage from 4 V to 80 V.
What is the fixed gain of the AD8218?
The AD8218 has a fixed gain of 20 V/V.
What input common‑mode voltage range does the AD8218 support?
It supports an input common‑mode voltage range from 4 V to 80 V.