具有直列式滤波器功能的高温、-16V 至 80V、分级电流感应放大器
| Common mode voltage (Max) (V) | 80 |
| Common mode voltage (Min) (V) | -16 |
| Input offset (+/-) (Max) (uV) | 2500 |
| Input offset drift (+/-) (Typ) (uV/C) | 42 |
| Gain (V/V) | 20 |
| Gain error (%) | 1 |
| Gain error drift (+/-) (Max) (ppm/°C) | 300 |
| CMRR (Min) (dB) | 100 |
| Bandwidth (kHz) | 130 |
| Supply voltage (Max) (V) | 18 |
| Supply voltage (Min) (V) | 2.7 |
| Iq (Max) (mA) | 0.95 |
| Number of channels (#) | 1 |
| Comparators (#) | 0 |
| Features | Low-side Capable |
| Rating | High Temp |
| Operating temperature range (C) | -55 to 210 |
- Wide Common-Mode Range: –16V to +80V
- CMRR: 78dB
- Accuracy:
±10mV Offset (max)
±7.5% Gain Error (max)
100μV/°C Offset Drift (max) - Bandwidth: Up to 130kHz
- Transfer Function: 20V/V
- Quiescent Current: 1600μA (max)
- Power Supply: +2.7V to +18V
- Provision for Filtering
- APPLICATIONS
- Down-Hole Drilling
- High Temperature Environments
- Supports Extreme Temperature Applications
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C/210°C)
Temperature Range(1) - Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
- Texas Instruments high temperature products utilize
highly optimized silicon (die) solutions with design
and process enhancements to maximize performance over
extended temperatures.
(1) Custom temperature ranges
The INA271 is a current-shunt monitor with voltage output and can sense drops across current shunts at common-mode voltages from –16V to +80V, independent of the supply voltage. The INA271 pinouts readily enable filtering.
The INA271 is available with a 20V/V output voltage scale. The 130kHz bandwidth simplifies use in current-control loops.
The INA271 operates from a single +2.7V to +18V supply, drawing a maximum of 1600μA of supply current. This device is specified over the extended operating temperature range of –55°C to +210°C.
