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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 RRA78620 (dual) and RRA78640 (quad) are operational amplifiers (op amps) featuring low power consumption and rail-to-rail input and output capabilities. They operate on supply voltages ranging from 1.8V to 5.5V, making them suitable for a wide range of general-purpose applications. The devices are 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 RRA786x0 family 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

AttributesValue
Channels (#)1, 2, 4
Temp. Range (°C)-40 to +125, -40 to +125°C
Bandwidth (MHz)10
Offset Voltage (Max) (mV)2.15
IBIAS (nA)0.0066
CMRR (dB)92
PSRR (db)117
Rail-to-Rail InputYes
Rail-to-Rail OutputYes
Common Mode Input Voltage Range (V)1.8 - 5.5
IS per Amp (mA)0.52
Noise VN (nV/√Hz)15
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 LevelIndustrial, Standard

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
MSOP3.0 x 3.0 x 0.0080.7
SC701.2 x 2.0 x 1.9050.7
SOICN4.9 x 3.9 x 0.0081.3
SOT232.9 x 1.6 x 0.0051
TSSOP5.0 x 4.4 x 0.9080.7
TSSOP5.0 x 4.4 x 0.90140.7

Product Comparison

RRA786x0ISL28113RRA7900xRRA7904x
Single Supply Voltage Range1.5 - 5.5, 1.8 - 5.51.8 - 5.51.8 - 5.51.2 - 5.5
Bandwidth (MHz)10210.35
Input Offset Voltage Vio (Max) (mV (±))2.15-1.61.9, 2.05
IBIAS (nA)0.00660.0030.0050.001
Supply Current Icc/Idd (Max) (mA)0.52-0.0780.013

Application Block Diagrams

Classic cordless brushless drill block diagram featuring a sensored trapezoidal control algorithm executed by a motor control MCU.
Cordless Brushless Drill
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Additional Applications

  • Washing machines
  • HVAC
  • Smoke detectors
  • Refrigerators
  • Filters
  • Motor control

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