STEVAL-ISQ013V1:Low side current sensing based on TS507

Current sensing is very useful for protecting applications. The STEVAL-ISQ013V1 demonstration board implements a low-side current sensing which consists in placing a sense resistor between the load and the circuit ground and the resulting voltage drop is amplified using a TS507 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 any restrictions.

The circuit offers very stable electrical characteristics over the entire supply voltage range and is particularly intended for automotive and industrial applications.

Key Features

  • Ultra low offset voltage: 25 μV typ, 100 μV max
  • Rail-to-rail input/output voltage swing
  • Operating from 2.7 V to 5.5 V
  • High speed: 1.9 MHz
  • 45° phase margin with 100 pF
  • Low consumption: 0.8 mA at 2.7 V
  • Very large signal voltage gain: 131 dB
  • High power supply rejection ratio: 105 dB
  • Very high ESD protection 5 kV (HBM)
  • Latch-up immunity
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB1089: Low-side current sensing demonstration board based on the TS5071.168 KB
Application Notes
DescriptionVersionSize
AN3222: Demonstration board user guidelines for low-side current sensing with the TS507 operational amplifier1.2628 KB
Board Manufacturing Specifications
DescriptionVersionSize
Gerber files1.042 KB
Bill of Materials
DescriptionVersionSize
Bill of materials1.016 KB
Schematic Packs
DescriptionVersionSize
Board schematics1.012 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISQ013V1TS507281NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISQ013V1CARDIndustrialEcopack2
Low-side current sensing demonstration board based on the TS507 STEVAL-ISQ013V1
Demonstration board user guidelines for low-side current sensing with the TS507 operational amplifier STEVAL-ISQ013V1
Demonstration board user guidelines for low-side current sensing with the TS507 operational amplifier STEVAL-ISQ013V1
Demonstration board user guidelines for low-side current sensing with the TS507 operational amplifier STEVAL-ISQ013V1
Demonstration board user guidelines for low-side current sensing with the TS507 operational amplifier STEVAL-ISQ013V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2