AD8418AWHRZ
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Analog Devices Inc. AD8418AWHRZ

Manufacturer No:
AD8418AWHRZ
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC CURRENT SENSE 1 CIRCUIT 8SOIC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD8418AWHRZ, produced by Analog Devices Inc., is a high-voltage, high-resolution current shunt amplifier designed for automotive and industrial applications. It features an initial gain of 20 V/V and is capable of bidirectional current measurements across a shunt resistor. The device is known for its excellent input common-mode rejection, wide operating temperature range, and low power consumption. It is particularly suited for high-side and low-side current sensing in various applications such as motor control, solenoid control, and power management.

Key Specifications

Parameter Min Typ Max Unit
Gain 20 - - V/V
Gain Error Over Temperature - - ±0.15% -
Voltage Offset, Referred to the Input (RTI) - ±200 μV ±400 μV μV
Offset Drift -0.4 0.1 0.4 μV/°C
Input Bias Current - 130 μA 260 μA μA
Input Voltage Range (Common Mode) -2 - 70 V
Common-Mode Rejection Ratio (CMRR) 90 100 - dB
Output Voltage Range 0.032 VS - 0.032 V - - V
Output Resistance - - 2 Ω Ω
Power Supply Operating Range 2.7 - 5.5 V
Quiescent Current - 4.1 mA 4.2 mA mA
Operating Temperature Range -40 - 150 °C

Key Features

  • High initial gain of 20 V/V with a maximum ±0.15% gain error over the entire temperature range.
  • Bidirectional current measurements across a shunt resistor.
  • Excellent input common-mode rejection from -2 V to +70 V.
  • Wide operating temperature range: -40°C to +150°C for the AD8418AWH model.
  • Low quiescent current of 4.1 mA to 4.2 mA.
  • High common-mode rejection ratio (CMRR) of up to 100 dB.
  • Single-supply operation from 2.7 V to 5.5 V.
  • Compact 8-lead SOIC and MSOP packages.
  • AEC-Q100 qualified for automotive applications.
  • Robust operation in harsh environments with EMI filters and patented circuitry.

Applications

  • High-side current sensing in motor controls and solenoid controls.
  • Low-side current sensing.
  • Power management and diagnostic protection.
  • Industrial instrumentation and battery management.
  • Automotive and industrial applications requiring precise current sensing and robust operation.

Q & A

  1. What is the initial gain of the AD8418AWHRZ? The initial gain of the AD8418AWHRZ is 20 V/V.
  2. What is the operating temperature range of the AD8418AWHRZ? The operating temperature range is -40°C to +150°C for the AD8418AWH model.
  3. What is the common-mode rejection ratio (CMRR) of the AD8418AWHRZ? The CMRR is up to 100 dB.
  4. What is the power supply operating range of the AD8418AWHRZ? The power supply operating range is from 2.7 V to 5.5 V.
  5. Is the AD8418AWHRZ qualified for automotive applications? Yes, the AD8418AWHRZ is AEC-Q100 qualified for automotive applications.
  6. What are the typical applications of the AD8418AWHRZ? Typical applications include high-side and low-side current sensing in motor controls, solenoid controls, power management, and diagnostic protection.
  7. What is the quiescent current of the AD8418AWHRZ? The quiescent current is 4.1 mA to 4.2 mA.
  8. Does the AD8418AWHRZ have EMI filters? Yes, the AD8418AWHRZ includes EMI filters and patented circuitry for robust operation.
  9. What is the output voltage range of the AD8418AWHRZ? The output voltage range is 0.032 VS - 0.032 V.
  10. What are the package options for the AD8418AWHRZ? The device is available in 8-lead SOIC and MSOP packages.

Product Attributes

Amplifier Type:Current Sense
Number of Circuits:1
Output Type:- 
Slew Rate:1V/µs
Gain Bandwidth Product:- 
-3db Bandwidth:250 kHz
Current - Input Bias:130 µA
Voltage - Input Offset:- 
Current - Supply:4.1mA
Current - Output / Channel:- 
Voltage - Supply Span (Min):2.7 V
Voltage - Supply Span (Max):5.5 V
Operating Temperature:-40°C ~ 150°C
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number AD8418AWHRZ AD8418AWBRZ AD8418AWHRMZ
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Amplifier Type Current Sense Current Sense Current Sense
Number of Circuits 1 1 1
Output Type - - -
Slew Rate 1V/µs 1V/µs 1V/µs
Gain Bandwidth Product - - -
-3db Bandwidth 250 kHz 250 kHz 250 kHz
Current - Input Bias 130 µA 130 µA 130 µA
Voltage - Input Offset - - -
Current - Supply 4.1mA 4.1mA 4.1mA
Current - Output / Channel - - -
Voltage - Supply Span (Min) 2.7 V 2.7 V 2.7 V
Voltage - Supply Span (Max) 5.5 V 5.5 V 5.5 V
Operating Temperature -40°C ~ 150°C -40°C ~ 125°C -40°C ~ 150°C
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-MSOP

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