Features
- Low input offset voltage: ±70μV, max ISL28227SEH ±75μV, max
- Superb offset voltage TC: 0.5μV/°C, max ISL28227SEH 1μV/°C, max
- Wide supply range: 4.5V to 40V ISL28227SEH 4.5V to 36V
- Very low voltage noise: 2.5nV/Hz
- Input bias current: ±10nA, max
- Gain-bandwidth product: 10MHz Unity gain stable
- No phase reversal
- Operating temperature range: -40° C to +125 °C (ISL28227SEH -55 °C to +125 °)C
Description
The ISL28227 and ISL28227SEH are very high precision amplifiers featuring very low noise, low offset voltage, low input bias current, and low temperature drift making them the ideal choice for applications requiring both high DC accuracy and AC performance. The combination of precision, low noise and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. Applications for these amplifiers include precision active filters, medical and analytical instrumentation, precision power supply controls, and industrial controls. The ISL28227 dual op amps are available in 8 Ld SOIC, TDFN and MSOP packages. Additionally, this device is offered in standard pin configurations and operate over the extended temperature range to -40 °C to +125 °C. The ISL28227SEH is available in a 10 Ld hermetic ceramic flatpack package, is offered in an industry standard pin configuration, and operates over the extended temperature range from -55 °C to +125 °C.
Parameters
| Attributes | Value |
|---|---|
| Channels (#) | 2 |
| Temp. Range (°C) | -40 to +125°C |
| Bandwidth (MHz) | 10 |
| IBIAS (nA) | 10 |
| IS per Amp (mA) | 2.8 |
| Offset Voltage (Max) (mV) | 0.075 |
| Slew Rate (V/µs) | 3.6 |
| Rail-to-Rail Input | No |
| Rail-to-Rail Output | No |
| Single Supply Voltage Range (V) | 4.5 - 40 |
| Gain Min | 1 |
| IOUT (A) | 0.045 |
| Noise VN (nV/√Hz) | 2.5 |
| AVOL (dB) | 123.52 |
| CMRR (dB) | 120 |
| PSRR (db) | 117 |
| Enable | No |
| VOUT (V) | 38.5 |
| VS (Min) (V) | 4.5 |
| VS (Max) (V) | 40 |
| Thermal Shutdown | No |
Application Block Diagrams
 | Displacement Measurement Using LVDT High-precision LVDT displacement sensor system with robust signal processing for industrial automation. |
Additional Applications
- Precision instruments
- Medical instrumentation
- Industrial controls
- Active filter blocks
- Data acquisition
- Power supply control
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Can RA2A1 24 Bit Single end input measure negative signal?
I'm thinking to use RA2A1 MCU to measure very small AC (50Hz) signal, maybe millivolt range or smaller, but it is sin wave which have negative amplitude, is RA2A1 MCU single end input can handle negative signal? This thread was automatically locked due to age.
Jan 10, 2023
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