STEVAL-ISQ014V1

STEVAL-ISQ014V1 is a low-side current sensing evaluation board based on the TSZ121 op-amp. The STEVAL-ISQ014V1 product evaluation board implements low-side current sensing which consists in placing a sense resistor between the load and the circuit ground. The resulting voltage drop is amplified using a TSZ121 op-amp. The common mode voltage is close to ground, whatever the voltage of the power source, so the current sense voltage can be amplified by this low voltage op-amp without restriction. The circuit offers very stable electrical characteristics over the entire supply voltage range and is particularly suited for automotive and industrial applications.

• Very high accuracy: offset voltage 5µV max at 25°C, 8µV over full temperature range (-40°C to 125°C)
• Rail-to-rail input and output
• Low supply voltage range from 1.8 to 5.5V
• Low power consumption of 40µA max. at 5V
• Gain bandwidth product is 400KHz
• High tolerance to ESD is 4KV HBM
• Extended temperature range from -40 to +125°C
• Micro-packages: SC70-5 (TSZ121), DFN8 2x2 (TSZ122), and QFN16 3x3 (TSZ124)