Overview
The AD8417WBRMZ-10, produced by Analog Devices Inc., is a high-voltage, high-resolution current sense amplifier. This device is designed to accurately amplify small differential current shunt voltages in the presence of rapidly changing common-mode voltages. It features a unique zero-drift architecture that ensures high accuracy and stability over a wide temperature range. The AD8417 is particularly suited for applications requiring precise current measurement in harsh environments.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature Range | −40°C to +125°C (AD8417WB and AD8417B), −40°C to +150°C (AD8417WH) |
| Supply Voltage | 2.7 V to 5.5 V |
| Quiescent Current | 4.1 mA (AD8417WB and AD8417B), 4.2 mA (AD8417WH) |
| Gain | 60 V/V with ±0.3% gain error |
| Common-Mode Rejection Ratio (CMRR) | 86 dB, dc to 10 kHz |
| Input Offset Drift | |
| Bandwidth | 250 kHz |
| Slew Rate | 1 V/µs |
| Output Voltage Range | 0.045 VS − 0.035 V (RL = 25 kΩ) |
| Package | 10-lead MSOP |
Key Features
- Bidirectional operation, allowing it to measure both positive and negative currents.
- High common-mode rejection ratio (CMRR) of 86 dB from dc to 10 kHz, ensuring accurate measurements in noisy environments.
- Zero-drift architecture, providing less than 0.4 µV/°C input offset drift, which maintains high accuracy over temperature changes.
- Wide operating temperature range, making it suitable for harsh environments.
- AEC-Q100 qualified for automotive applications, indicating robust reliability and performance.
- Low noise performance with 2.3 µV p-p noise from 0.1 Hz to 10 Hz and 110 nV/√Hz spectral density at 1 kHz.
Applications
- High-side current sensing in motor controls and solenoid controls.
- Power management systems requiring precise current monitoring.
- Low-side current sensing in various industrial and automotive applications.
- Diagnostic protection and monitoring in high-reliability systems.
Q & A
- What is the primary function of the AD8417WBRMZ-10?
The AD8417WBRMZ-10 is a high-voltage, high-resolution current sense amplifier designed to accurately amplify small differential current shunt voltages. - What is the operating temperature range of the AD8417WBRMZ-10?
The operating temperature range is −40°C to +125°C for AD8417WB and AD8417B, and −40°C to +150°C for AD8417WH. - What is the common-mode rejection ratio (CMRR) of the AD8417WBRMZ-10?
The CMRR is 86 dB from dc to 10 kHz. - What is the gain of the AD8417WBRMZ-10?
The gain is 60 V/V with a maximum ±0.3% gain error. - Is the AD8417WBRMZ-10 suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications. - What is the bandwidth of the AD8417WBRMZ-10?
The bandwidth is 250 kHz. - What is the slew rate of the AD8417WBRMZ-10?
The slew rate is 1 V/µs. - What package options are available for the AD8417WBRMZ-10?
The AD8417WBRMZ-10 is available in a 10-lead MSOP package. - What is the input offset drift of the AD8417WBRMZ-10?
The input offset drift is less than 0.4 µV/°C. - What are some typical applications of the AD8417WBRMZ-10?
Typical applications include high-side current sensing in motor controls, solenoid controls, power management, and diagnostic protection.
