Ultra-low Current Consumption Quick Response Type CMOS Op-amps

ROHM Co., Ltd. has recently announced the development of the BU7265G/SG and BU7411G/SG series of CMOS op-amps that provide the industry's lowest current consumption (0.35µA) and slew rate (0.05V/µs), making them ideal for battery-driven sets. A total of 8 models are offered to fit a variety of needs, including full-swing/ground sense types and units capable of stable operation at up to 105ºC.

Electronic devices are increasingly designed to minimize power consumption. With this in mind, ROHM has focused attention on the expansion of its low current consumption CMOS operational amplifier series, optimized for small-signal amplification in portable devices and sensors. The BU7411G/SG series in particular combines ultra-low current consumption (0.35µA) with low voltage capability (from 1.6V), reducing power.

In addition to lower power consumption, there is a growing need for quick response (high slew rate) characteristics in multifunction devices and high-performance digital AV equipment. ROHM CMOS op-amps meet this requirement by providing a best-in-class slew rate of 0.05V/µs. The entire lineup also features high ESD resistance (4kV), providing a greater level of reliability.

•Key Features:

1. Industry's lowest current consumption: 0.35µA (BU7265G/SG, BU7511G/SG)
2. Low-voltage operation from 1.6V ideal for battery-driven sets (BU7411G/SG)
3. High slew rate: 0.05V/µs (BU7271G/SG, BU7421G/SG)
4. Selectable input/output specifications: Full swing type (BU7265G/SG, BU7271G/SG),
   Ground sense type (BU7411G/SG, BU7421G/SG)
5. Wide operating temperature range: −40ºC to 105ºC (BU7265SG/BU7411SG/BU7271SG/BU7421SG)
   −40ºC to 85ºC (BU7265G/BU7411G/BU7271G/BU7421G)
6. High ESD resistance: 4kV (HBM)
7. Low-input bias current: 1pA
8. Compact package: SSOP5 (equivalent to SOT-23)

New Product Bulletin : Ultra-low Current Consumption CMOS Op-amps(PDF:679KB)

Products News: Ultra Low Power Single CMOS Operational Amplifier(PDF:127KB)

Products News : Low Power Single CMOS Operational Amplifier(PDF:128KB)

•CMOS Op-amp Lineup

•Terminology

• CMOS Operational Amplifier
  An operational amplifier developed comprised only of MOSFETs.
• Slew Rate
  Represents the maximum rate at which the output voltage of an op-amp can change. With fast pulses that are input and amplified the rising portion of the output often exhibits a slope. Slew rate helps in identifying the maximum input frequency that will not result in output distortion.
• Full Swing/Ground Sense
  Indicates the range of compatible input/output voltages (signals)
    ・Full swing: Capable of handling voltages ranging from V_DD to the minimum voltage (V_SS).
    ・Ground sense: Ranges from V_DD – a value V to the minimum voltage (V_SS).
• ESD Resistance
  Denotes the amount of electrostatic voltage the device can withstand before failure/breakdown.
• Bias Current
  Refers to the current flowing in and out of the input terminal. For op-amps, the smaller the better.

	Operational Amplifiers / Comparators
	Ultra-low Current Consumption CMOS Op-amps