Overview
The AD8417WBRMZ, produced by Analog Devices Inc., is a high-voltage, high-resolution bidirectional current sense amplifier. This device is designed for precise current measurements across a shunt resistor in various automotive and industrial applications. It features a unique zero-drift architecture, ensuring high accuracy and stability over a wide temperature range. The AD8417 operates on a single supply voltage ranging from 2.7 V to 5.5 V and is available in several package options, including 8-lead MSOP and 8-lead SOIC_N.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 60 V/V | |
| Gain Error | ±0.3% (over entire temperature range) | |
| Common-Mode Rejection Ratio (CMRR) | 86 dB (dc to 10 kHz) | |
| Input Offset Drift | < 0.4 µV/°C | |
| Bandwidth | 250 kHz | |
| Slew Rate | 1 V/µs | |
| Power Supply Range | 2.7 V to 5.5 V | |
| Quiescent Current | 4.1 mA (AD8417WB and AD8417B), 4.2 mA (AD8417WH) | |
| Operating Temperature Range | −40°C to +125°C (AD8417WB and AD8417B), −40°C to +150°C (AD8417WH) |
Key Features
- Bidirectional current sensing capability
- High common-mode rejection ratio (CMRR) of 86 dB (dc to 10 kHz)
- Zero-drift architecture for high accuracy and stability
- Initial gain of 60 V/V with a maximum ±0.3% gain error over the entire temperature range
- Single-supply operation from 2.7 V to 5.5 V
- Low input offset drift of less than 0.4 µV/°C
- AEC-Q100 qualified for automotive applications
- Available in 8-lead MSOP and 8-lead SOIC_N packages
Applications
- High-side current sensing in motor controls and solenoid controls
- Power management systems
- Low-side current sensing
- Diagnostic and protection circuits
- Automotive and industrial applications requiring precise current measurement
Q & A
- What is the primary function of the AD8417WBRMZ?
The AD8417WBRMZ is a high-voltage, high-resolution bidirectional current sense amplifier designed to measure current across a shunt resistor.
- What is the gain of the AD8417WBRMZ?
The AD8417WBRMZ has an initial gain of 60 V/V with a maximum ±0.3% gain error over the entire temperature range.
- What is the common-mode rejection ratio (CMRR) of the AD8417WBRMZ?
The CMRR is 86 dB from dc to 10 kHz.
- What is the operating temperature range of the AD8417WBRMZ?
The operating temperature range is −40°C to +125°C for AD8417WB and AD8417B, and −40°C to +150°C for AD8417WH.
- What are the package options available for the AD8417WBRMZ?
The device is available in 8-lead MSOP and 8-lead SOIC_N packages.
- Is the AD8417WBRMZ suitable for automotive applications?
- What is the power supply range for the AD8417WBRMZ?
The device operates on a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the quiescent current of the AD8417WBRMZ?
The quiescent current is 4.1 mA for AD8417WB and AD8417B, and 4.2 mA for AD8417WH.
- Can the AD8417WBRMZ be used for bidirectional current sensing?
- What is the input offset drift of the AD8417WBRMZ?
The input offset drift is less than 0.4 µV/°C.
- What are some typical applications of the AD8417WBRMZ?
Typical applications include high-side and low-side current sensing in motor controls, solenoid controls, power management systems, and diagnostic and protection circuits.
