AD8417-2 Series
1 mm × 1.9 mm WLCSP, High Common-Mode, Bidirectional, Zero Drift, Current Sense Amplifier
Manufacturer: Analog Devices
Catalog
1 mm × 1.9 mm WLCSP, High Common-Mode, Bidirectional, Zero Drift, Current Sense Amplifier
Key Features
• Typical 0.1 μV/°C offset drift
• Maximum ±400 μV voltage offset over full temperature range
• 2.7 V to 5.5 V power supply operating range
• Electromagnetic interference (EMI) filters included
• High common-mode input voltage range−2 V to +42 V continuous
• −2 V to +42 V continuous
• Initial gain = 60 V/V
• Wide operating temperature range: −40°C to +125°C
• Bidirectional operation
• Dual channel in a small 1 mm × 1.9 mm WLCSP
• Common-mode rejection ratio (CMRR): 86 dB, dc to 10 kHz
Description
AI
The AD8417-2 is a high voltage, high resolution, and dual channel current sense amplifier. It features an initial gain of 60 V/V, with a maximum ±0.3% gain error over the entire temperature range. The AD8417-2 performs bidirectional current measurements across a shunt resistor in a variety of applications, including motor control, power management, and solenoid control.The AD8417-2 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero drift core, which leads to a typical offset drift of 0.1 μV/°C throughout the operating temperature range and the common-mode voltage range. The device includes EMI filters and patented circuitry to enable output accuracy with pulse-width modulation (PWM) type input common-mode voltages. The typical input offset voltage is ±200 μV.The AD8417-2 is offered in a small 10-ball 1 mm × 1.9 mm WLCSP. It requires a smaller board area than a typical single-channel current sense amplifier, increasing channel density, without compromising performance.APPLICATIONSHigh-side current sensing in:Motor controlsSolenoid controlsPower managementLow-side current sensingDiagnostic protectionRelated DevicesPart No.DescriptionAD8205Current sense amplifier, gain = 50AD8206Current sense amplifier, gain = 20AD8207High accuracy current-sense amplifier, gain = 20AD8210High speed current sense amplifier, gain = 20AD8417High accuracy current sense amplifier, gain = 60AD8418AHigh accuracy current sense amplifier, gain = 20