INA827
- Eliminates Errors from External Resistors at Gain of 5
- Common-Mode Range Goes Below
Negative Supply - Input Protection: Up to ±40 V
- Rail-to-Rail Output
- Outstanding Precision:
- Common-Mode Rejection: 88 dB, minimum
- Low Offset Voltage: 150 µV, maximum
- Low Drift: 2.5 µV/°C, maximum
- Low Gain Drift: 1 ppm/°C, max (G = 5 V/V)
- Power-Supply Rejection:
100 dB, min (G = 5) - Noise: 17 nV/√Hz, G = 1000 V/V
- High Bandwidth:
- G = 5: 600 kHz
- G = 100: 150 kHz
- Supply Current: 200 µA, typical
- Supply Range:
- Single Supply: 3 V to 36 V
- Dual Supply: ±1.5 V to ±18 V
- Specified Temperature Range:
–40°C to +125°C - Package: 8-pin VSSOP
The INA827 is a low-cost instrumentation amplifier (INA) that offers extremely low power consumption and operates over a very wide single- or dual-supply range. The device is optimized for the lowest possible gain drift of only 1 ppm per degree Celsius in G = 5, which requires no external resistor. However, a single external resistor sets any gain from 5 to 1000.
The INA827 is optimized to provide excellent common-mode rejection ratio (CMRR) of over 88 dB (G = 5) over frequencies up to 5 kHz. In G = 5, CMRR exceeds 88 dB across the full input common-mode range from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA827 is well-suited for low-voltage operation from a 3-V singlesupply as well as dual supplies up to ±18 V. Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to a save level.
The INA827 is available in a small VSSOP-8 package and is specified for the –40°C to +125°C temperature range. For a similar instrumentation amplifier with a gain range of 1 V/V to 1000 V/V, see the INA826.
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 | INA827 Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier With a Minimum Gain of 5 datasheet (Rev. B) | PDF | HTML | 2017/11/27 | ||
| 應用說明 | Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps | PDF | HTML | 2021/7/27 | |||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |