| Number of channels (#) | 1 |
| Vs (Min) (V) | 2.76 |
| Vs (Max) (V) | 36 |
| CMRR (Min) (dB) | 76 |
| Common mode input low (Min) (V) | -100 |
| Common mode input high (Max) (V) | 100 |
| Input offset (+/-) (Max) (uV) | 5000 |
| Iq (Typ) (mA) | 0.6 |
| Small signal bandwidth (Typ) (MHz) | 0.5 |
| Slew rate (Typ) (V/us) | 0.45 |
| Gain (Min) (V/V) | 0.1 |
| Gain (Max) (V/V) | 100 |
| Gain error (+/-) (Max) (%) | 0.1 |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| Gain drift (Max) (ppm/C) | 1 |
- HIGH COMMON-MODE VOLTAGE:
- +40V at V S = +5V
- ±100V at V S = ±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 CMR: 80dB
- SO-8 PACKAGE
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 ex-tends beyond both supply rails, making the INA146 well-suited for both single and dual supply applica-tions.
On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Ex-cellent TCR tracking of these resistors assures contin-ued 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 affect-ing the common-mode input range.
The INA146 is available in the SO-8 surface-mount package specified for the extended industrial tempera-ture range, -40°C to +85°C.