The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.
Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.
The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.
| Number of channels | 1 |
| Vs (max) (V) | 5.5 |
| Vs (min) (V) | 2.7 |
| Input offset (±) (max) (µV) | 100 |
| Voltage gain (min) (V/V) | 0.1 |
| Voltage gain (max) (V/V) | 1000 |
| Noise at 1 kHz (typ) (nV√Hz) | 33 |
| Features | Cost Optimized |
| CMRR (min) (dB) | 100 |
| Input offset drift (±) (max) (V/°C) | 0.0000004 |
| Input bias current (±) (max) (nA) | 2 |
| Iq (typ) (mA) | 2.4 |
| Bandwidth at min gain (typ) (MHz) | 0.001 |
| Gain error (±) (max) (%) | 0.2 |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Type | Resistor |
| Gain nonlinearity (±) (max) (%) | 0.01 |
| Output swing headroom (to negative supply) (typ) (V) | 0.005 |
| Output swing headroom (to positive supply) (typ) (V) | -0.005 |
| Input common mode headroom (to negative supply) (typ) (V) | -0.02 |
| Input common mode headroom (to positive supply) (typ) (V) | 0.1 |
| Noise at 0.1 Hz to 10 Hz (typ) (µVPP) | 0.8 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |
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