Worldwide (In English)
Bridge amplifier circuit CIRCUIT060006 (ACTIVE)
Key Document
- Single-supply strain gauge bridge amplifier circuit
(PDF 208 KB)
30 Dec 2017
Description
A strain gauge is a sensor whose resistance varies with applied force. To measure the variation in resistance, the strain gauge is placed in a bridge configuration. This design uses a 2 op amp instrumentation circuit to amplify a differential signal created by the change in resistance of a strain gauge. By varying R10, a small differential voltage is created at the output of the Wheatstone bridge which is fed to the 2 op amp instrumentation amplifier input.
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 (4)
| Title | Type | Size (KB) | Date |
|---|---|---|---|
| 147 | 31 Dec 2018 | ||
| 192 | 31 Dec 2018 | ||
| 155 | 30 Dec 2017 | ||
| 208 | 30 Dec 2017 |
User guides (1)
| Title | Type | Size (KB) | Date |
| 861 | 02 Nov 2015 |
Solution guides (1)
| Title | Type | Size (KB) | Date |
| 11259 | 18 Feb 2019 |
Related Products
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 (2)
Support & training
Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.
Search answers from TI experts
Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.
If you have questions about quality, packaging, or ordering TI products visit our Support page.