Texas Instruments INA128, precision instrumentation amplifier, 1.3 MHz -3dB bandwidth, 4V/µs slew rate, 10 µV input offset, 2 nA bias, 4.5 V to 36 V supply, 8-SOIC package, -40°C to 85°C operation.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Amplifier type | Instrumentation |
| Voltage - input offset | 10 µV |
| Voltage - supply span | 4.5 V |
| Current - supply | 700µA |
| Current - input bias | 2 nA |
| Current - output (Channel) | 15 mA |
| Operating temperature | -40°C~85°C |
| -3db bandwidth | 1.3 MHz |
| Package | Tube |
| Slew rate | 4V/µs |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 1 |
The INA128UG4 instrumentation amplifier has a 10 µV input offset voltage and 2 nA input bias current. The 4 V/µs slew rate and 1.3 MHz -3dB bandwidth support signals up to several tens of kilohertz without distortion — adequate for most industrial sensor conditioning and data-acquisition channels.
The 15 mA output per channel drives into ADC inputs, comparators, or cable loads without an external buffer.
The INA128 is the standard-gain version (set by an external resistor), while the INA129 is a pin-compatible variant with a fixed internal gain of 10. For the INA128UG4, the gain is programmable from 1 to 10,000 via a single external resistor — no internal gain default.