Features
- Single-supply operation: 1.8V to 5.5V
- Rail-to-rail input/output
- Low-input offset voltage: ±0.45mV
- Gain bandwidth: 10MHz
- Temperature range support: -40°C to +125°C
Description
The RRA78640 is a quad operational amplifier (op amp) featuring low power consumption and rail-to-rail input and output capabilities. It operates on supply voltages ranging from 1.8V to 5.5V, making it suitable for a wide range of general-purpose applications. The device is unity-gain stable, ensuring reliable performance across various use cases.
The input common-mode voltage range extends 100mV above and below the power supply voltage rails, enabling compatibility with virtually any single-supply application. The rail-to-rail input and output swing enhances signal dynamic range and signal-to-noise ratio, a critical advantage in low-supply applications. With high signal bandwidth and a high slew rate, the RRA78640 is ideal for driving the sample-and-hold circuitry of analog-to-digital converters (ADCs). Additionally, the output stage can swing to within 20mV of the supply rails with a 10kΩ load, ensuring efficient and precise operation.
Parameters
| Attributes | Value |
|---|---|
| Channels (#) | 4 |
| Bandwidth (MHz) | 10 |
| CMRR (dB) | 92 |
| PSRR (db) | 117 |
| Rail-to-Rail Input | Yes |
| Rail-to-Rail Output | Yes |
| Common Mode Input Voltage Range (V) | 1.8 - 5.5 |
| IS per Amp (mA) | 0.52 |
| Single Supply Voltage Range (V) | 1.5 - 5.5, 1.8 - 5.5 |
| Slew Rate (V/µs) | 7.5 |
| Input Offset Voltage Vio (Max) (mV (±)) | 2.15 |
| Supply Current Icc/Idd (Max) (mA) | 0.52 |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 0.90 | 14 | 0.7 |
Product Comparison
| RRA78640 | ISL28413 | |
| Bandwidth (MHz) | 10 | 2 |
| Input Offset Voltage Vio (Max) (mV (±)) | 2.15 | 5 |
Application Block Diagrams
 | Cordless Brushless Drill Cordless brushless drill designs delivering power, precision, and connectivity. |
Additional Applications
- Washing machines
- HVAC
- Smoke detectors
- Refrigerators
- Filters