INA146
- High common-mode voltage:
- 40V at VS = 5V
- ±100V at VS = ±15V
- Differential gain = 0.1V/V TO
100V/V:
- Set with External Resistors
- Low quiescent current: 570µA
- Wide supply range:
- Single Supply: 4.5V to 36V
- Dual Supplies: ±2.25V to ±18V
- Low gain error: 0.025%
- High common-mode rejection: 80dB
The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 an excellent choice for both single and dual supply applications.
On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors provides continued high precision over temperature.
A 10:1 difference amplifier provides 0.1V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100V can be measured. Gains greater than 0.1V/V can be set with an external resistor pair without affecting the common-mode input range.
The INA146 is available in the SO-8 surface-mount package specified for the extended industrial temperature range, –40°C to 85°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | INA146 High-voltage, Programmable Gain Difference Amplifier datasheet (Rev. B) | PDF | HTML | 2025/12/10 | ||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 應用說明 | High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) | PDF | HTML | 2015/5/18 |
設計與開發
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