Overview
The AD8418AWHRMZ from Analog Devices Inc. is a high-precision, zero-drift bidirectional current sensing amplifier designed for automotive and industrial applications. This device is known for its high resolution and stability, making it ideal for precise signal conditioning in harsh environments. It operates over a wide temperature range and is qualified for automotive use, adhering to stringent reliability standards.
Key Specifications
| Attribute | Value |
|---|---|
| Amplifier Type | Current Sense |
| Number of Circuits | 1 |
| Gain | 20 V/V |
| Gain Error | ±0.15% over temperature range |
| Input Offset Voltage | ±100 μV |
| Offset Drift | 0.1 μV/°C |
| Common-Mode Input Voltage Range | −2 V to +70 V |
| Common-Mode Rejection Ratio (CMRR) | 90 dB |
| Slew Rate | 1 V/μs |
| 3dB Bandwidth | 250 kHz |
| Power Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current | 2.6 mA |
| Operating Temperature Range | −40°C to +150°C |
| Package | 8-lead SOIC, 8-lead MSOP |
| Mounting Type | Surface Mount |
Key Features
- Zero-drift core for high accuracy and stability
- Bidirectional current sensing capability
- High common-mode input voltage range (−2 V to +70 V)
- EMI filters for improved output accuracy with PWM inputs
- Low quiescent current of 2.6 mA
- Wide gain bandwidth of 250 kHz
- Compact 8-lead SOIC and MSOP packages for space-constrained designs
- Qualified for automotive applications with AEC-Q100 compliance
Applications
- High-side and low-side current sensing
- Motor control and solenoid control
- Power management systems
- Industrial instrumentation and diagnostic protection
Q & A
- What is the primary function of the AD8418AWHRMZ? The AD8418AWHRMZ is a zero-drift bidirectional current sensing amplifier.
- What is the operating temperature range of the AD8418AWHRMZ? The operating temperature range is −40°C to +150°C.
- What are the available package types for the AD8418AWHRMZ? It is available in 8-lead SOIC and 8-lead MSOP packages.
- What is the common-mode input voltage range of the AD8418AWHRMZ? The common-mode input voltage range is −2 V to +70 V.
- Is the AD8418AWHRMZ qualified for automotive applications? Yes, it is qualified for automotive applications and complies with AEC-Q100 standards.
- What is the gain of the AD8418AWHRMZ? The gain is 20 V/V.
- What is the slew rate of the AD8418AWHRMZ? The slew rate is 1 V/μs.
- What is the typical offset drift of the AD8418AWHRMZ? The typical offset drift is 0.1 μV/°C.
- What is the power supply voltage range for the AD8418AWHRMZ? The power supply voltage range is 2.7 V to 5.5 V.
- What is the quiescent current of the AD8418AWHRMZ? The quiescent current is 2.6 mA.
