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Low-side, bidirectional current-sensing circuit CIRCUIT060007 (ACTIVE)
Key Document
- Low-side, bidirectional current-sensing circuit (Rev. B)
(PDF 147 KB)
01 Feb 2019
-
Simulation for Low-Side, Bidirectional Current Sensing Circuit
(ZIP 297 KB)
02 May 2018
Description
This single-supply low-side, bidirectional current sensing solution can accurately detect load currents from –1A to 1A. The linear range of the output is from 110mV to 3.19V. Low-side current sensing keeps the common-mode voltage near ground, and is thus most useful in applications with large bus voltages.
Features
- Single 5V supply with half-supply reference
- Input: -2.22mV to 2.27mV differential
- Output: 225mV - 4.72V
- Strain gauge resistance variation: 115 - 125 Ohms
- Gain: 1001V/V
Technical Documents
Application notes (1)
| Title | Type | Size (KB) | Date |
| 147 | 01 Feb 2019 |
User guides (2)
| Title | Type | Size (KB) | Date |
|---|---|---|---|
| 941 | 11 Dec 2015 | ||
| 723 | 08 Dec 2014 |
Solution guides (1)
| Title | Type | Size (KB) | Date |
| 11259 | 18 Feb 2019 |
More literature (1)
| Title | Type | Size (KB) | Date |
| 4073 | 29 Nov 2018 |
Related Products
Software (1)
-
Simulation for Low-Side, Bidirectional Current Sensing Circuit
(ZIP, 297 KB) 02 May 2018
Development Tools (2)
| Name | Part Number | Tool Type |
|---|---|---|
| Analog engineer's calculator | ANALOG-ENGINEER-CALC | Calculation Tools |
| SPICE-based analog simulation program | TINA-TI | Circuit Design & Simulation |
TI Devices (4)
| Part Number | Name | Product Family |
|---|---|---|
| LPV821 | 650nA, Precision Zero-Drift Nanopower Amplifier | Operational amplifiers (op amps) |
| OPA313 | 1-MHz, Micropower, Low-Noise, Rail-to-Rail I/O 1.8-V Operational Amplifier | Operational amplifiers (op amps) |
| OPA376 | Precision, Low Noise, Low Iq Operational Amplifier | Operational amplifiers (op amps) |
| TLV9062 | 10-MHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems | Operational amplifiers (op amps) |
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