Overview
The AD8217BRMZ-RL, produced by Analog Devices Inc., is a high-resolution, zero-drift current shunt monitor. This device is designed for high-side current sensing and offers exceptional performance in various industrial and telecom applications. It features a set gain of 20 V/V and a maximum ±0.35% gain error over the entire temperature range, ensuring high accuracy and stability. The AD8217 includes an internal LDO, allowing it to power directly from the high voltage rail, eliminating the need for an additional standalone supply. This component is housed in an 8-lead MSOP package and operates over a temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Input Voltage Range (+IN, −IN to GND) | 0 V to 85 V |
| Differential Input Voltage (+IN to –IN) | ±1 V |
| Common-Mode Voltage Range | 4.5 V to 80 V |
| Gain | 20 V/V |
| Gain Error | ±0.35% (max) |
| Input Offset Voltage | ±100 μV (typ) |
| Offset Drift | ±100 nV/°C (typ) |
| Operating Temperature Range | −40°C to +125°C |
| Package | 8-lead MSOP |
| ESD Rating (HBM) | ±2000 V |
Key Features
- High-resolution, zero-drift current shunt amplifier
- Excellent common-mode rejection (100 dB typical CMRR at dc)
- Internal LDO for direct power from the high voltage rail (4.5 V to 80 V)
- Buffered output voltage directly interfaces with any typical converter
- Output linearity maintained throughout the input differential voltage range (0 mV to 250 mV)
- High accuracy and stability over the operating temperature range
- RoHS compliant and lead-free
Applications
- High-side current sensing
- 48 V telecom power management
- Base stations
- Unidirectional motor control
- Precision high voltage current sources
- Battery management
- Power amplifier bias control in base stations
Q & A
- What is the primary function of the AD8217BRMZ-RL?
The AD8217BRMZ-RL is a high-resolution, zero-drift current shunt monitor designed for high-side current sensing.
- What is the gain of the AD8217BRMZ-RL?
The gain of the AD8217BRMZ-RL is set at 20 V/V.
- What is the common-mode voltage range of the AD8217BRMZ-RL?
The common-mode voltage range is from 4.5 V to 80 V.
- Does the AD8217BRMZ-RL require an additional power supply?
No, it includes an internal LDO that allows it to power directly from the high voltage rail.
- What is the operating temperature range of the AD8217BRMZ-RL?
The operating temperature range is from −40°C to +125°C.
- What is the package type of the AD8217BRMZ-RL?
The AD8217BRMZ-RL is housed in an 8-lead MSOP package.
- What are some typical applications of the AD8217BRMZ-RL?
Typical applications include high-side current sensing, 48 V telecom power management, base stations, unidirectional motor control, and precision high voltage current sources.
- What is the ESD rating of the AD8217BRMZ-RL?
The ESD rating is ±2000 V (HBM).
- Is the AD8217BRMZ-RL RoHS compliant?
- What is the typical input offset voltage of the AD8217BRMZ-RL?
The typical input offset voltage is ±100 μV.
