ADA4661-2 Datasheet

• Low power at high voltage (18 V): 725 μA maximum
• Low offset voltage:
  • 150 μV maximum at Vsy/2
  • 300 μV maximum over entire common mode range
• Low input bias current: 15 pA maximum
• Gain bandwidth product: 4 MHz typical at A_v = 100
• Unity-gain crossover: 4 MHz typical
• -3 dB closed-loop bandwidth: 2.1 MHz typical
• Single-supply operation: 3 V to 18 V
• Dual-supply operation: ±1.5 V to ±9 V
• Unity-gain stable
• Available As Known Good Die and fully guaranteed to data sheet specifications

• Current shunt monitors
• Active filters
• Portable medical equipment
• Buffer/level shifting
• High impedance sensor interfaces
• Battery powered instrumentation

The ADA4661-2 is a dual, precision, rail-to-rail input/output amplifier optimized for low power, high bandwidth, and wide operating supply voltage range applications.

The ADA4661-2 performance is guaranteed at 3.0 V, 10 V, and 18 V power supply voltages. It is an excellent selection for applications that use single-ended supplies of 3.3 V, 5 V, 10 V, 12 V and 15 V, and dual supplies of ±2.5 V, ±3.3 V, and ±5 V. It uses the Analog Devices, Inc., patented DigiTrim^® trimming technique, which achieves low offset voltage. Additionally, the unique design architecture of the ADA4661-2 allows it to have excellent power supply rejection, common-mode rejection, and offset voltage when operating in the common-mode voltage range of −V_SY + 1.5 V to +V_SY − 1.5 V.

The ADA4661-2 is specified over the extended industrial temperature range (−40°C to +125°C) and is available in 8-lead MSOP and 8-lead LFCSP (3 mm × 3 mm) packages.