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Features

  • Wide supply voltage range: down to 1.2V
  • Ultra-low input bias current: 1pA typical
  • Low quiescent current: 10µA/ch
  • Low integrated noise: 5.5µVP-P (0.1Hz to 10Hz)
  • Rail-to-rail input/output capability
  • Gain bandwidth product: 350kHz
  • Low input offset voltage: ±0.5mV
  • Integrated RFI and EMI input filtering
  • Unity-gain stable with no phase reversal
  • Operating temperature range: -40°C to 125°C

Description

The RRA7904x family (RRA79041, RRA79042) of ultra-low voltage operational amplifiers delivers exceptional performance and efficiency for a variety of demanding applications. Available in a single (RRA79041) and dual (RRA79042) configurations, these op-amps operate seamlessly within a wide voltage range from 1.2V to 5.5V, featuring rail-to-rail input and output capabilities.

Engineered specifically for power-sensitive applications, the RRA7904x series significantly reduces power consumption through a very low quiescent current of just 10µA (typical). Its ability to function reliably at supply voltages as low as 1.2V positions it as one of the industry's leading solutions for power-sensitive applications.

All devices operate across the temperature range of -40°C to +125°C and are available in a wide variety of packages.

Parameters

AttributesValue
Channels (#)1, 2
Temp. Range (°C)-40 to +125
Bandwidth (MHz)0.35
Offset Voltage (Max) (mV)2.05, 2.15
IBIAS (nA)0.001
CMRR (dB)89
PSRR (db)94
Rail-to-Rail InputYes
Rail-to-Rail OutputYes
Common Mode Input Voltage Range (V)1.2 - 5.5
IS per Amp (mA)0.013
Noise VN (nV/√Hz)70
Single Supply Voltage Range (V)1.2 - 5.5
Slew Rate (V/µs)0.2
Input Offset Voltage Vio (Max) (mV (±))1.9, 2.05
Supply Current Icc/Idd (Max) (mA)0.013
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
TDFN2.0 x 2.0 x 0.7580.5

Product Comparison

RRA7904xISL28113RRA786x0RRA7900x
Single Supply Voltage Range1.2 - 5.51.8 - 5.51.5 - 5.5, 1.8 - 5.51.8 - 5.5
Bandwidth (MHz)0.352101
Input Offset Voltage Vio (Max) (mV (±))1.9, 2.05-2.151.6
IBIAS (nA)0.0010.0030.00660.005
Supply Current Icc/Idd (Max) (mA)0.013-0.520.078

Applications

  • Smart and Connected IoT Devices
  • Advanced Wearable Technologies
  • Portable and Personal Electronics
  • Building Automation
  • Environmental Sensors

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