High-side current sensing with discrete difference amplifier circuit
CIRCUIT060005
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Key Document
- High-side current-sensing circuit design (Rev. A)
(PDF 128 KB)
13 Feb 2019
-
SBOA310 TINA-TI Reference Design
(ZIP 9 KB)
06 Dec 2018
- High-side current-sensing circuit design with MSP430 smart analog combo (Rev. B)
(PDF 626 KB)
06 Mar 2020
Description
This single–supply, high–side, low–cost current sensing solution detects load current between 50mA and 1A and converters it to an output voltage from 0.25V to 5V. High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on the load.
Technical documentation
Application notes (6)
| Title | Type | Size (KB) | Date |
|---|---|---|---|
| 626 | 06 Mar 2020 | ||
| 440 | 24 Oct 2019 | ||
| 70 | 22 Mar 2019 | ||
| 128 | 13 Feb 2019 | ||
| 122 | 31 Jan 2019 | ||
| 308 | 28 Jun 2018 |
User guides (1)
| Title | Type | Size (KB) | Date |
| 976 | 03 Oct 2013 |
White papers (2)
| Title | Type | Size (KB) | Date |
|---|---|---|---|
| 3447 | 09 Jan 2020 | ||
| 11294 | 18 Feb 2019 |
Related Products
Design tools & simulation (2)
| Name | Part Number | Tool Type |
|---|---|---|
| Analog engineer's calculator | ANALOG-ENGINEER-CALC | Calculation tools |
| SPICE-based analog simulation program | TINA-TI | Simulation tools |
TI Devices (6)
| Part Number | Name | Product Family |
|---|---|---|
| MSP430FR2310 | 16MHz integrated analog microcontroller with 2KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC | Microcontrollers (MCU) |
| MSP430FR2311 | 16MHz integrated analog microcontroller with 3.75KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC | Microcontrollers (MCU) |
| MSP430FR2353 | 24MHz 105C integrated analog microcontroller with 16KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC | Microcontrollers (MCU) |
| MSP430FR2355 | 24MHz 105C integrated analog microcontroller with 32KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC | Microcontrollers (MCU) |
| OPA192 | High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier | Operational amplifiers (op amps) |
| OPA2990 | 40-V, dual 1MHz, rail-to-rail input/output, low-offset-voltage, low-power op amp | Operational amplifiers (op amps) |
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