ZHCS968B June 2012 – November 2017 INA827
PRODUCTION DATA.
- 1 特性
- 2 应用
- 3 说明
- 4 修订历史记录
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Typical Characteristics
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文档支持
- 13机械、封装和可订购信息
8.3.1 Setting the Gain
Device gain is set by a single external resistor (RG), connected between pins 2 and 3. The value of RG is selected according to Equation 1:
Equation 1. 
Table 1 lists several commonly-used gains and resistor values. The on-chip resistors are laser-trimmed to accurate absolute values. The accuracy and temperature coefficients of these resistors are included in the gain accuracy and drift specifications of the INA827.
Table 1. Commonly-Used Gains and Resistor Values
| DESIRED GAIN (V/V) | RG (Ω) | NEAREST 1% RG (Ω) |
|---|---|---|
| 5 | — | — |
| 10 | 16.00k | 15.8k |
| 20 | 5.333k | 5.36k |
| 50 | 1.778k | 1.78k |
| 100 | 842.1 | 845 |
| 200 | 410.3 | 412 |
| 500 | 161.6 | 162 |
| 1000 | 80.40 | 80.6 |