Packaging information
| Package | Pins SOIC (D) | 8 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the INA146
- High common-mode voltage:
- 40 V at V S = 5 V
- ±100 V at V S = ±15 V
- Differential gain = 0.1 V/V TO
100 V/V:
- Set with External Resistors
- Low quiescent current: 570 µA
- Wide supply range:
- Single Supply: 4.5 V to 36 V
- Dual Supplies: ±2.25 V to ±18 V
- Low gain error: 0.025%
- High common-mode rejection: 80 dB
Description for the INA146
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 0.1 V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100 V can be measured. Gains greater than 0.1 V/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.